Fix a potential null pointer exception when leaving the world

The thread dealing with these should probably be killed and recreated when leaving the world instead of just catching the problem here.
minor refactor in LodGenWorker
2021-10-22 20:46:26 -05:00 · 2021-10-22 20:45:37 -05:00 · 2021-10-22 20:42:02 -05:00 · 2021-10-22 18:48:32 -05:00 · 2021-10-22 20:07:02 +02:00 · 2021-10-22 08:28:30 +02:00
101 changed files with 13093 additions and 6119 deletions
@@ -22,4 +22,5 @@ eclipse
 run

 # Files from Forge MDK
+logs
 forge*changelog.txt
@@ -1,65 +0,0 @@
-Minecraft Forge: Credits/Thank You
-
-Forge is a set of tools and modifications to the Minecraft base game code to assist 
-mod developers in creating new and exciting content. It has been in development for 
-several years now, but I would like to take this time thank a few people who have 
-helped it along it's way.
-
-First, the people who originally created the Forge projects way back in Minecraft 
-alpha. Eloraam of RedPower, and SpaceToad of Buildcraft, without their acceptiance 
-of me taking over the project, who knows what Minecraft modding would be today.
-
-Secondly, someone who has worked with me, and developed some of the core features
-that allow modding to be as functional, and as simple as it is, cpw. For developing
-FML, which stabelized the client and server modding ecosystem. As well as the base
-loading system that allows us to modify Minecraft's code as elegently as possible.
-
-Mezz, who has stepped up as the issue and pull request manager. Helping to keep me
-sane as well as guiding the community into creating better additions to Forge.
-
-Searge, Bspks, Fesh0r, ProfMobious, and all the rest over on the MCP team {of which 
-I am a part}. For creating some of the core tools needed to make Minecraft modding 
-both possible, and as stable as can be.
-  On that note, here is some specific information of the MCP data we use:
-    * Minecraft Coder Pack (MCP) *
-      Forge Mod Loader and Minecraft Forge have permission to distribute and automatically 
-      download components of MCP and distribute MCP data files. This permission is not 
-      transitive and others wishing to redistribute the Minecraft Forge source independently
-      should seek permission of MCP or remove the MCP data files and request their users 
-      to download MCP separately.
-      
-And lastly, the countless community members who have spent time submitting bug reports, 
-pull requests, and just helping out the community in general. Thank you.
-
--LexManos
-
-=========================================================================
-
-This is Forge Mod Loader.
-
-You can find the source code at all times at https://github.com/MinecraftForge/MinecraftForge/tree/1.12.x/src/main/java/net/minecraftforge/fml
-
-This minecraft mod is a clean open source implementation of a mod loader for minecraft servers
-and minecraft clients.
-
-The code is authored by cpw.
-
-It began by partially implementing an API defined by the client side ModLoader, authored by Risugami.
-http://www.minecraftforum.net/topic/75440-
-This support has been dropped as of Minecraft release 1.7, as Risugami no longer maintains ModLoader.
-
-It also contains suggestions and hints and generous helpings of code from LexManos, author of MinecraftForge.
-http://www.minecraftforge.net/
-
-Additionally, it contains an implementation of topological sort based on that 
-published at http://keithschwarz.com/interesting/code/?dir=topological-sort
-
-It also contains code from the Maven project for performing versioned dependency
-resolution. http://maven.apache.org/
-
-It also contains a partial repackaging of the javaxdelta library from http://sourceforge.net/projects/javaxdelta/
-with credit to it's authors.
-
-Forge Mod Loader downloads components from the Minecraft Coder Pack
-(http://mcp.ocean-labs.de/index.php/Main_Page) with kind permission from the MCP team.
-
@@ -0,0 +1,68 @@
+# Distant Horizons
+
+This mod adds a Level Of Detail (LOD) system to Minecraft.\
+This implementation renders simplified chunks outside the normal render distance\
+allowing for an increased view distance without harming performance.
+
+Or in other words: this mod lets you see farther without turning your game into a slide show.\
+If you want to see a quick demo, check out a video covering the mod here:
+
+[![Minecraft Level Of Detail (LOD) mod - Alpha 1.4](https://i.ytimg.com/vi_webp/MDWcEvdUGUE/mqdefault.webp)](https://www.youtube.com/watch?v=MDWcEvdUGUE)
+
+
+Forge version: 1.16.5-36.1.0
+
+Notes:\
+This version has been confirmed to work in Eclipse and Retail Minecraft.\
+(Retail running forge version 1.16.5-36.1.0)
+
+
+## source code installation
+
+See the Forge Documentation online for more detailed instructions:\
+http://mcforge.readthedocs.io/en/latest/gettingstarted/
+
+1. Create a system variable called "JAVA_MC_HOME" with the location of the JDK 1.8.0_251 (This is needed for gradle to work correctly)
+2. replace JAVA_HOME with JAVA_MC_HOME in gradle.bat
+3. open a command line in the project folder
+
+**If using Ecplise:**
+1. run the command: `./gradlew geneclipseruns`
+2. run the command: `./gradlew eclipse`
+3. Make sure eclipse has the JDK 1.8.0_251 installed. (This is needed so that eclipse can run minecraft)
+4. Import the project into eclipse
+
+**If using IntelliJ:**
+1. open IDEA and import the build.gradle
+2. run the command: `./gradlew genIntellijRuns`
+3. refresh the Gradle project in IDEA if required
+
+
+## Compiling
+
+1. open a command line in the project folder
+2. run the command: `./gradlew build`
+3. the compiled jar file will be in the folder `build\libs`
+
+
+## Other commands
+
+`./gradlew --refresh-dependencies` to refresh local dependencies.
+
+`./gradlew clean` to reset everything (this does not affect your code) and then start the process again.
+
+
+## Note to self
+
+The Minecraft source code is NOT added to your workspace in an editable way. Minecraft is treated like a normal Library. Sources are there for documentation and research purposes only.
+
+Source code uses Mojang mappings.
+
+The source code can be 'created' with the `./eclipse` command and can be found in the following path:\
+`minecraft-lod-mod\build\fg_cache\mcp\ VERSION \joined\ RANDOM_STRING \patch\output.jar`
+
+
+## Open Source Acknowledgements
+
+XZ for Java (data compression)\
+https://tukaani.org/xz/java.html
@@ -1,69 +0,0 @@
-This mod adds a Level Of Detail (LOD) system to Minecraft.
-This implementation renders simplified chunks outside the normal render distance
-allowing for an increased view distance without harming performance.
-
-Or in other words: this mod let's you see farther without turning your game into a slide show.
-If you want to see a quick demo, check out the video I made here:
-https://youtu.be/v61iOYZQWCs
-
-
-Forge version: 1.16.4-35.1.4
-
-Notes:
-This version has been confirmed to work in Eclipse and retail Minecraft.
-(retail running forge 1.16.4-35.1.37)
-That being said only singleplayer is currently supported; connecting
-to servers (local or otherwise) will cause no LODs to be drawn and
-may cause instibility.
-
-
-========================
-source code installation
-========================
-
-See the Forge Documentation online for more detailed instructions:
-http://mcforge.readthedocs.io/en/latest/gettingstarted/
-
-Step 1: Create a system variable called "JAVA_MC_HOME" with the location of the JDK 1.8.0_251 (This is needed for gradle to work correctly)
-
-Step 2: replace JAVA_HOME with JAVA_MC_HOME in gradle.bat
-
-Step 3: open a command line in the project folder
-
-Step 4: run the command: "./gradlew geneclipseruns"
-
-Step 5: run the command: "./gradlew eclipse"
-
-Step 6: Make sure the eclipse has the JDK 1.8.0_251 installed. (This is needed so that eclipse can run minecraft)
-
-Step 7: Import the project into eclipse
-
-
-
-=========
-compiling
-=========
-
-Step 1: open a command line in the project folder
-
-Step 2: run the command: "./gradlew build"
-
-Step 3: the compiled jar file will be in the folder "build\libs"
-
-
-
-==============
-Other commands
-==============
-
-"./gradlew --refresh-dependencies" to refresh local dependencies. 
-"./gradlew clean" to reset everything (this does not affect your code) and then start the process again.
-
-
-
-============
-Note to self
-============
-
-The Minecraft source code is NOT added to your workspace in a editable way. Minecraft is treated like a normal Library. Sources are there for documentation and research purposes only.
-
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+        <setting id="org.eclipse.jdt.core.formatter.insert_space_before_colon_in_case" value="do not insert"/>
+        <setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_bracket_in_array_reference" value="do not insert"/>
+        <setting id="org.eclipse.jdt.core.formatter.keep_enum_declaration_on_one_line" value="one_line_never"/>
+        <setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_method_declaration" value="do not insert"/>
+        <setting id="org.eclipse.jdt.core.formatter.brace_position_for_enum_constant" value="next_line"/>
+        <setting id="org.eclipse.jdt.core.formatter.brace_position_for_type_declaration" value="next_line"/>
+        <setting id="org.eclipse.jdt.core.formatter.insert_space_before_multiplicative_operator" value="insert"/>
+        <setting id="org.eclipse.jdt.core.formatter.blank_lines_before_package" value="1"/>
+        <setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_for" value="insert"/>
+        <setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_for_increments" value="do not insert"/>
+        <setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_enum_constant" value="do not insert"/>
+        <setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_explicitconstructorcall_arguments" value="do not insert"/>
+        <setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_paren_in_annotation" value="do not insert"/>
+        <setting id="org.eclipse.jdt.core.formatter.indent_body_declarations_compare_to_enum_constant_header" value="true"/>
+        <setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_brace_in_constructor_declaration" value="insert"/>
+        <setting id="org.eclipse.jdt.core.formatter.insert_space_before_comma_in_constructor_declaration_throws" value="do not insert"/>
+        <setting id="org.eclipse.jdt.core.formatter.insert_space_before_closing_angle_bracket_in_type_parameters" value="do not insert"/>
+        <setting id="org.eclipse.jdt.core.formatter.insert_space_before_question_in_conditional" value="insert"/>
+        <setting id="org.eclipse.jdt.core.formatter.comment.indent_parameter_description" value="false"/>
+        <setting id="org.eclipse.jdt.core.formatter.number_of_blank_lines_at_beginning_of_code_block" value="0"/>
+        <setting id="org.eclipse.jdt.core.formatter.insert_new_line_before_finally_in_try_statement" value="insert"/>
+        <setting id="org.eclipse.jdt.core.formatter.tabulation.char" value="tab"/>
+        <setting id="org.eclipse.jdt.core.formatter.wrap_before_string_concatenation" value="true"/>
+        <setting id="org.eclipse.jdt.core.formatter.lineSplit" value="1200"/>
+        <setting id="org.eclipse.jdt.core.formatter.insert_space_after_opening_paren_in_annotation" value="do not insert"/>
+        <setting id="org.eclipse.jdt.core.formatter.insert_space_before_opening_paren_in_switch" value="insert"/>
+    </profile>
+</profiles>
@@ -0,0 +1,50 @@
+<code_scheme name="Eclipse (James' Edit)" version="173">
+  <option name="RIGHT_MARGIN" value="1200" />
+  <JavaCodeStyleSettings>
+    <option name="JD_ALIGN_PARAM_COMMENTS" value="false" />
+    <option name="JD_ALIGN_EXCEPTION_COMMENTS" value="false" />
+    <option name="JD_ADD_BLANK_AFTER_DESCRIPTION" value="false" />
+    <option name="JD_P_AT_EMPTY_LINES" value="false" />
+    <option name="JD_KEEP_INVALID_TAGS" value="false" />
+    <option name="JD_DO_NOT_WRAP_ONE_LINE_COMMENTS" value="true" />
+    <option name="JD_KEEP_EMPTY_PARAMETER" value="false" />
+    <option name="JD_KEEP_EMPTY_EXCEPTION" value="false" />
+    <option name="JD_KEEP_EMPTY_RETURN" value="false" />
+  </JavaCodeStyleSettings>
+  <codeStyleSettings language="JAVA">
+    <option name="KEEP_CONTROL_STATEMENT_IN_ONE_LINE" value="false" />
+    <option name="KEEP_BLANK_LINES_IN_DECLARATIONS" value="10" />
+    <option name="KEEP_BLANK_LINES_IN_CODE" value="10" />
+    <option name="KEEP_BLANK_LINES_BEFORE_RBRACE" value="10" />
+    <option name="BLANK_LINES_BEFORE_PACKAGE" value="1" />
+    <option name="BRACE_STYLE" value="2" />
+    <option name="CLASS_BRACE_STYLE" value="2" />
+    <option name="METHOD_BRACE_STYLE" value="2" />
+    <option name="ELSE_ON_NEW_LINE" value="true" />
+    <option name="WHILE_ON_NEW_LINE" value="true" />
+    <option name="CATCH_ON_NEW_LINE" value="true" />
+    <option name="FINALLY_ON_NEW_LINE" value="true" />
+    <option name="INDENT_CASE_FROM_SWITCH" value="false" />
+    <option name="ALIGN_MULTILINE_PARAMETERS" value="false" />
+    <option name="ALIGN_MULTILINE_RESOURCES" value="false" />
+    <option name="SPACE_WITHIN_ARRAY_INITIALIZER_BRACES" value="true" />
+    <option name="SPACE_BEFORE_ARRAY_INITIALIZER_LBRACE" value="true" />
+    <option name="CALL_PARAMETERS_WRAP" value="1" />
+    <option name="METHOD_PARAMETERS_WRAP" value="1" />
+    <option name="RESOURCE_LIST_WRAP" value="5" />
+    <option name="EXTENDS_LIST_WRAP" value="1" />
+    <option name="THROWS_LIST_WRAP" value="1" />
+    <option name="EXTENDS_KEYWORD_WRAP" value="1" />
+    <option name="THROWS_KEYWORD_WRAP" value="1" />
+    <option name="METHOD_CALL_CHAIN_WRAP" value="1" />
+    <option name="TERNARY_OPERATION_WRAP" value="5" />
+    <option name="ARRAY_INITIALIZER_WRAP" value="1" />
+    <option name="METHOD_ANNOTATION_WRAP" value="0" />
+    <option name="CLASS_ANNOTATION_WRAP" value="0" />
+    <option name="FIELD_ANNOTATION_WRAP" value="0" />
+    <indentOptions>
+      <option name="USE_TAB_CHARACTER" value="true" />
+      <option name="KEEP_INDENTS_ON_EMPTY_LINES" value="true" />
+    </indentOptions>
+  </codeStyleSettings>
+</code_scheme>
@@ -1,15 +1,17 @@
 buildscript {
    repositories {
-        maven { url = 'https://files.minecraftforge.net/maven' }
-        jcenter()
+        maven { url = 'https://files.minecraftforge.net' }
        mavenCentral()
+        // potential replacement in case of problems:
+		// https://dist.creeper.host/Sponge/maven
 		maven { url = 'https://repo.spongepowered.org/maven/' }
-		// potential replacement in case of problems:
-		// https://dist.creeper.host/Sponge/maven 
+		// used to download and compile dependencies from git repos 
+		maven { url 'https://jitpack.io' }
    }
    dependencies {
        classpath group: 'net.minecraftforge.gradle', name: 'ForgeGradle', version: '3.+', changing: true
 		classpath group: 'org.spongepowered', name: 'mixingradle', version: '0.7-SNAPSHOT'
+        classpath 'com.github.jengelman.gradle.plugins:shadow:2.0.2'
    }
 }
 apply plugin: 'net.minecraftforge.gradle'
@@ -17,10 +19,12 @@ apply plugin: 'org.spongepowered.mixin'
 // Only edit below this line, the above code adds and enables the necessary things for Forge to be setup.
 apply plugin: 'eclipse'
 apply plugin: 'maven-publish'
+apply plugin: 'com.github.johnrengelman.shadow'
+
+version = 'a1.5.0'
+group = 'com.seibel.lod'
+archivesBaseName = 'Distant-Horizons_1.16.5'

-version = 'a1.2'
-group = 'com.backsun.lod'
-archivesBaseName = 'lod_1.16.4'

 sourceCompatibility = targetCompatibility = compileJava.sourceCompatibility = compileJava.targetCompatibility = '1.8' // Need this here so eclipse task generates correctly.

@@ -31,7 +35,7 @@ minecraft {
    // stable_#            Stables are built at the discretion of the MCP team.
    // Use non-default mappings at your own risk. they may not always work.
    // Simply re-run your setup task after changing the mappings to update your workspace.
-    mappings channel: 'snapshot', version: '20201028-1.16.3'
+	mappings channel: 'official', version: '1.16.5'

    // makeObfSourceJar = false // an Srg named sources jar is made by default. uncomment this to disable.
    
@@ -45,9 +49,15 @@ minecraft {
 			arg "-mixin.config=lod.mixins.json"

            // Recommended logging data for a userdev environment
-            property 'forge.logging.markers', 'SCAN,REGISTRIES,REGISTRYDUMP'
+            // The markers can be changed as needed. 
+            // "SCAN": For mods scan.
+            // "REGISTRIES": For firing of registry events.
+            // "REGISTRYDUMP": For getting the contents of all registries.
+            property 'forge.logging.markers', 'REGISTRIES'

            // Recommended logging level for the console
+            // You can set various levels here.
+            // Please read: https://stackoverflow.com/questions/2031163/when-to-use-the-different-log-levels
            property 'forge.logging.console.level', 'debug'

            mods {
@@ -62,9 +72,15 @@ minecraft {
 			arg "-mixin.config=lod.mixins.json"
 			
            // Recommended logging data for a userdev environment
-            property 'forge.logging.markers', 'SCAN,REGISTRIES,REGISTRYDUMP'
+            // The markers can be changed as needed. 
+            // "SCAN": For mods scan.
+            // "REGISTRIES": For firing of registry events.
+            // "REGISTRYDUMP": For getting the contents of all registries.
+            property 'forge.logging.markers', 'REGISTRIES'

            // Recommended logging level for the console
+            // You can set various levels here.
+            // Please read: https://stackoverflow.com/questions/2031163/when-to-use-the-different-log-levels
            property 'forge.logging.console.level', 'debug'

            mods {
@@ -78,9 +94,15 @@ minecraft {
            workingDirectory project.file('run')

            // Recommended logging data for a userdev environment
-            property 'forge.logging.markers', 'SCAN,REGISTRIES,REGISTRYDUMP'
+            // The markers can be changed as needed. 
+            // "SCAN": For mods scan.
+            // "REGISTRIES": For firing of registry events.
+            // "REGISTRYDUMP": For getting the contents of all registries.
+            property 'forge.logging.markers', 'REGISTRIES'

            // Recommended logging level for the console
+            // You can set various levels here.
+            // Please read: https://stackoverflow.com/questions/2031163/when-to-use-the-different-log-levels
            property 'forge.logging.console.level', 'debug'

            // Specify the modid for data generation, where to output the resulting resource, and where to look for existing resources.
@@ -98,11 +120,43 @@ minecraft {
 // Include resources generated by data generators.
 sourceSets.main.resources { srcDir 'src/generated/resources' }

+// this is required so that we can use 
+// jitpack in the dependencies section below 
+repositories {
+    mavenCentral()
+	// used to download and compile dependencies from git repos 
+	maven { url 'https://jitpack.io' }
+}
+
+configurations {
+    shadowMe
+    compileOnly.extendsFrom(embed)
+}
+
 dependencies {
    // Specify the version of Minecraft to use, If this is any group other then 'net.minecraft' it is assumed
    // that the dep is a ForgeGradle 'patcher' dependency. And it's patches will be applied.
    // The userdev artifact is a special name and will get all sorts of transformations applied to it.
-    minecraft 'net.minecraftforge:forge:1.16.4-35.1.4'
+    minecraft 'net.minecraftforge:forge:1.16.5-36.1.0'
+
+
+    compile 'org.tukaani:xz:1.9'
+    shadowMe 'org.tukaani:xz:1.9'
+    compile 'org.apache.commons:commons-compress:1.21'
+    shadowMe 'org.apache.commons:commons-compress:1.21'
+
+    // these were added to hopefully allow for cloning
+    // configuredFeatures to allow for safe
+    // multi threaded feature generation. Sadly I couldn't find
+    // a way to duplicate lambda functions (which features use)
+    // so for now I'm not sure what to do.
+    //implementation 'io.github.kostaskougios:cloning:1.10.3'
+    //
+    //implementation ('com.esotericsoftware:kryo:5.1.1') {
+    //  exclude group: "org.objenesis"
+    //}
+    //implementation 'org.objenesis:objenesis:3.2'
+

    // You may put jars on which you depend on in ./libs or you may define them like so..
    // compile "some.group:artifact:version:classifier"
@@ -124,23 +178,41 @@ dependencies {

 }

+shadowJar {
+    duplicatesStrategy = DuplicatesStrategy.INCLUDE
+    configurations = [project.configurations.getByName("shadowMe")]
+    relocate 'org.tukaani', 'shaded.tukaani'
+    relocate 'org.apache.commons.compress', 'shaded.apache.commons.compress'
+    classifier = ''
+}
+
+reobf {
+    shadowJar {
+        dependsOn tasks.createMcpToSrg
+        mappings = tasks.createMcpToSrg.outputs.files.singleFile
+    }
+}
+
+artifacts {
+    archives tasks.shadowJar
+}
+
 // Example for how to get properties into the manifest for reading by the runtime..
 jar {
    manifest {
        attributes([
-            "Specification-Title": "Levels of Detail",
+            "Specification-Title": "LOD",
            "Specification-Version": "1", // We are version 1 of ourselves
            "Implementation-Title": project.name,
-            "Implementation-Version": "1.0",
+            "Implementation-Version": "1",
            "Implementation-Timestamp": new Date().format("yyyy-MM-dd'T'HH:mm:ssZ"),
 			"MixinConfigs": "lod.mixins.json",
        ])
    }
 }
-
 // Example configuration to allow publishing using the maven-publish task
 // This is the preferred method to reobfuscate your jar file
-jar.finalizedBy('reobfJar') 
+jar.finalizedBy('reobfJar')
 // However if you are in a multi-project build, dev time needs unobfed jar files, so you can delay the obfuscation until publishing by doing
 //publish.dependsOn('reobfJar')

@@ -159,4 +231,4 @@ publishing {

 mixin {
    add sourceSets.main, "lod.refmap.json"
-}
+}
@@ -1,9 +1,27 @@
+/*
+ *    This file is part of the Distant Horizon mod (formerly the LOD Mod),
+ *    licensed under the GNU GPL v3 License.
+ *
+ *    Copyright (C) 2020  James Seibel
+ *
+ *    This program is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, version 3.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.seibel.lod;

+import com.seibel.lod.config.LodConfig;
 import com.seibel.lod.proxy.ClientProxy;
-import com.seibel.lod.util.LodConfig;

-import net.minecraft.client.Minecraft;
 import net.minecraftforge.common.MinecraftForge;
 import net.minecraftforge.eventbus.api.SubscribeEvent;
 import net.minecraftforge.fml.ModLoadingContext;
@@ -21,7 +39,7 @@ import net.minecraftforge.fml.javafmlmod.FMLJavaModLoadingContext;
 * check out the ClientProxy.
 * 
 * @author James Seibel
- * @version 02-07-2021
+ * @version 7-3-2021
 */
@Mod(ModInfo.MODID)
 public class LodMain
@@ -33,33 +51,32 @@ public class LodMain
 	
 	private void init(final FMLCommonSetupEvent event)
 	{
-		Minecraft.getInstance().getFramebuffer().enableStencil();
-		ModLoadingContext.get().registerConfig(ModConfig.Type.CLIENT, LodConfig.clientSpec);
+		ModLoadingContext.get().registerConfig(ModConfig.Type.CLIENT, LodConfig.CLIENT_SPEC);
 	}
 	
 	
-    public LodMain()
-    {
-        // Register the methods
-        FMLJavaModLoadingContext.get().getModEventBus().addListener(this::init);
-        FMLJavaModLoadingContext.get().getModEventBus().addListener(this::onClientStart);
-
-        // Register ourselves for server and other game events we are interested in
-        MinecraftForge.EVENT_BUS.register(this);
-    }
-
-    private void onClientStart(final FMLClientSetupEvent event)
-    {
-    	client_proxy = new ClientProxy();
+	public LodMain()
+	{
+		// Register the methods
+		FMLJavaModLoadingContext.get().getModEventBus().addListener(this::init);
+		FMLJavaModLoadingContext.get().getModEventBus().addListener(this::onClientStart);
+		
+		// Register ourselves for server and other game events we are interested in
+		MinecraftForge.EVENT_BUS.register(this);
+	}
+	
+	private void onClientStart(final FMLClientSetupEvent event)
+	{
+		client_proxy = new ClientProxy();
 		MinecraftForge.EVENT_BUS.register(client_proxy);
-    }
-    
-    
-    
-    @SubscribeEvent
-    public void onServerStarting(FMLServerStartingEvent event)
-    {
-        // this is called when the server starts
-    }
-    
+	}
+	
+	
+	
+	@SubscribeEvent
+	public void onServerStarting(FMLServerStartingEvent event)
+	{
+		// this is called when the server starts
+	}
+	
 }
@@ -1,15 +1,33 @@
+/*
+ *    This file is part of the Distant Horizon mod (formerly the LOD Mod),
+ *    licensed under the GNU GPL v3 License.
+ *
+ *    Copyright (C) 2020  James Seibel
+ *
+ *    This program is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, version 3.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.seibel.lod;

 /**
 * This file is similar to mcmod.info
- * 
 * @author James Seibel
- * @version 05-31-2021
+ * @version 10-16-2021
 */
 public final class ModInfo
-{	
+{
 	public static final String MODID = "lod";
-	public static final String MODNAME = "Levels of Detail";
+	public static final String MODNAME = "DistantHorizons";
 	public static final String MODAPI = "LodAPI";
-	public static final String VERSION = "a1.2";
+	public static final String VERSION = "a1.5.0";
 }
@@ -1,333 +0,0 @@
-package com.seibel.lod.builders;
-import java.util.concurrent.ExecutorService;
-import java.util.concurrent.Executors;
-
-import org.lwjgl.opengl.GL11;
-
-import com.seibel.lod.objects.LodChunk;
-import com.seibel.lod.objects.LodDimension;
-import com.seibel.lod.objects.NearFarBuffer;
-import com.seibel.lod.render.LodRender;
-import com.seibel.lod.util.LodConfig;
-
-import net.minecraft.client.Minecraft;
-import net.minecraft.client.renderer.BufferBuilder;
-import net.minecraft.util.math.ChunkPos;
-import net.minecraftforge.common.WorldWorkerManager;
-
-/**
- * This object is used to create NearFarBuffer objects.
- * 
- * @author James Seibel
- * @version 05-06-2021
- */
-public class LodBufferBuilder
-{
-	private Minecraft mc;
-	
-	/** This holds the thread used to generate new LODs off the main thread. */
-	private ExecutorService genThread = Executors.newSingleThreadExecutor();
-	
-	private LodBuilder lodBuilder;
-	
-	/** The buffers that are used to create LODs using near fog */
-	public volatile BufferBuilder buildableNearBuffer;
-	/** The buffers that are used to create LODs using far fog */
-	public volatile BufferBuilder buildableFarBuffer;
-	
-	/** if this is true the LOD buffers are currently being
-	 * regenerated. */
-	public volatile boolean generatingBuffers = false;
-	
-	/** if this is true new LOD buffers have been generated 
-	 * and are waiting to be swapped with the drawable buffers*/
-	private volatile boolean switchBuffers = false;
-	
-	/** If this is greater than 0 no new chunk generation requests will be made
-	 * this is to prevent chunks from being generated for a long time in an area
-	 * the player is no longer in. */
-	public int numberOfChunksWaitingToGenerate = 0;
-	
-	/** how many chunks to generate outside of the player's
-	 * view distance at one time. (or more specifically how
-	 * many requests to make at one time) */
-	public int maxChunkGenRequests = 8;
-	
-	
-	public LodBufferBuilder(LodBuilder newLodBuilder)
-	{
-		mc = Minecraft.getInstance();
-		lodBuilder = newLodBuilder;
-	}
-	
-	
-	
-	
-
-	/**
-	 * Create a thread to asynchronously generate LOD buffers
-	 * centered around the given camera X and Z.
-	 * <br>
-	 * This method will write to the drawableNearBuffers and drawableFarBuffers.
-	 * <br>
-	 * After the buildable buffers have been generated they must be
-	 * swapped with the drawable buffers in the LodRenderer to be drawn.
-	 */
-	public void generateLodBuffersAsync(LodRender renderer, LodDimension lodDim,
-			double playerX, double playerZ, int numbChunksWide)
-	{
-		// only allow one generation process to happen at a time
-		if (generatingBuffers)
-			return;
-		
-		if (buildableNearBuffer == null || buildableFarBuffer == null)
-			throw new IllegalStateException("generateLodBuffersAsync was called before the buildableNearBuffer and buildableFarBuffer were created.");
-		
-		
-		
-		generatingBuffers = true;
-		
-		
-		
-		// this seemingly useless math is required,
-		// just using (int) playerX/Z doesn't work
-		int playerXChunkOffset = ((int) playerX / LodChunk.WIDTH) * LodChunk.WIDTH;
-		int playerZChunkOffset = ((int) playerZ / LodChunk.WIDTH) * LodChunk.WIDTH;
-		// this is where we will start drawing squares
-		// (exactly half the total width)
-		int startX = (-LodChunk.WIDTH * (numbChunksWide / 2)) + playerXChunkOffset;
-		int startZ = (-LodChunk.WIDTH * (numbChunksWide / 2)) + playerZChunkOffset;
-		
-		
-		
-		Thread t = new Thread(()->
-		{
-			// index of the chunk currently being added to the
-			// generation list
-			int chunkGenIndex = 0;
-			
-			ChunkPos[] chunksToGen = new ChunkPos[maxChunkGenRequests];
-			int minChunkDist = Integer.MAX_VALUE;
-			ChunkPos playerChunkPos = new ChunkPos((int)playerX / LodChunk.WIDTH, (int)playerZ / LodChunk.WIDTH);
-			
-			
-			// generate our new buildable buffers
-			buildableNearBuffer.begin(GL11.GL_QUADS, LodRender.LOD_VERTEX_FORMAT);
-			buildableFarBuffer.begin(GL11.GL_QUADS, LodRender.LOD_VERTEX_FORMAT);
-			
-			// x axis
-			for (int i = 0; i < numbChunksWide; i++)
-			{
-				// z axis
-				for (int j = 0; j < numbChunksWide; j++)
-				{
-					// skip the middle
-					// (As the player moves some chunks will overlap or be missing,
-					// this is just how chunk loading/unloading works. This can hopefully
-					// be hidden with careful use of fog)
-					int middle = (numbChunksWide / 2);
-					if (isCoordInCenterArea(i, j, middle))
-					{
-						continue;
-					}
-					
-					
-					// set where this square will be drawn in the world
-					double xOffset = (LodChunk.WIDTH * i) + // offset by the number of LOD blocks
-									startX; // offset so the center LOD block is centered underneath the player
-					double yOffset = 0;
-					double zOffset = (LodChunk.WIDTH * j) + startZ;
-					
-					int chunkX = i + (startX / LodChunk.WIDTH);
-					int chunkZ = j + (startZ / LodChunk.WIDTH);
-					
-					LodChunk lod = lodDim.getLodFromCoordinates(chunkX, chunkZ);
-					
-					if (lod == null || lod.isLodEmpty())
-					{
-						// generate a new chunk if no chunk currently exists
-						// and we aren't waiting on any other chunks to generate
-						if (lod == null && numberOfChunksWaitingToGenerate == 0)
-						{
-							ChunkPos pos = new ChunkPos(chunkX, chunkZ);
-							
-							// determine if this position is closer to the player
-							// than the previous
-							int newDistance = playerChunkPos.getChessboardDistance(pos);
-							
-							if (newDistance < minChunkDist)
-							{
-								// this chunk is closer, clear any previous
-								// positions and update the new minimum distance
-								minChunkDist = newDistance;
-								
-								chunkGenIndex = 0;
-								chunksToGen = new ChunkPos[maxChunkGenRequests];
-								chunksToGen[chunkGenIndex] = pos;
-								chunkGenIndex++;
-							}
-							else if (newDistance <= minChunkDist)
-							{
-								// this chunk position is as close or closers than the
-								// minimum distance
-								if(chunkGenIndex < maxChunkGenRequests)
-								{
-									// we are still under the number of chunks to generate
-									// add this position to the list
-									chunksToGen[chunkGenIndex] = pos;
-									chunkGenIndex++;
-								}
-							}
-							
-						}
-						// don't render this null chunk
-						continue;
-					}
-					
-					
-					BufferBuilder currentBuffer = null;
-					if (isCoordinateInNearFogArea(i, j, numbChunksWide / 2))
-						currentBuffer = buildableNearBuffer;
-					else
-						currentBuffer = buildableFarBuffer;
-					
-					// get the desired LodTemplate and
-					// add this LOD to the buffer
-					LodConfig.CLIENT.lodTemplate.get().template.
-					addLodToBuffer(currentBuffer, lodDim, lod, 
-							xOffset, yOffset, zOffset, renderer.debugging);
-				}
-			}
-			
-			// TODO add a way for a server side mod to generate chunks requested here
-			if(mc.isIntegratedServerRunning())
-			{
-				// start chunk generation
-				for(ChunkPos chunkPos : chunksToGen)
-				{
-					if(chunkPos == null)
-						break;
-					
-					numberOfChunksWaitingToGenerate++;
-					
-					LodChunkGenWorker genWorker = new LodChunkGenWorker(chunkPos, renderer, lodBuilder, this, lodDim);
-					WorldWorkerManager.addWorker(genWorker);
-				}
-			}
-			
-			// finish the buffer building
-			buildableNearBuffer.finishDrawing();
-			buildableFarBuffer.finishDrawing();
-			
-			// mark that the buildable buffers as ready to swap
-			generatingBuffers = false;
-			switchBuffers = true;
-		});
-		
-		genThread.execute(t);
-		
-		return;
-	}
-	
-	
-	
-	
-	
-	
-	
-	
-	
-	
-	
-	//====================//
-	// generation helpers //
-	//====================//
-	
-	/**
-	 * Returns if the given coordinate is in the loaded area of the world.
-	 * @param centerCoordinate the center of the loaded world
-	 */
-	private boolean isCoordInCenterArea(int i, int j, int centerCoordinate)
-	{
-		return (i >= centerCoordinate - mc.gameSettings.renderDistanceChunks
-				&& i <= centerCoordinate + mc.gameSettings.renderDistanceChunks) 
-				&& 
-				(j >= centerCoordinate - mc.gameSettings.renderDistanceChunks
-				&& j <= centerCoordinate + mc.gameSettings.renderDistanceChunks);
-	}
-	
-	
-	/**
-	 * Find the coordinates that are in the center half of the given
-	 * 2D matrix, starting at (0,0) and going to (2 * lodRadius, 2 * lodRadius).
-	 */
-	private static boolean isCoordinateInNearFogArea(int chunkX, int chunkZ, int lodRadius)
-	{
-		int halfRadius = lodRadius / 2;
-		
-		return (chunkX >= lodRadius - halfRadius 
-				&& chunkX <= lodRadius + halfRadius) 
-				&& 
-				(chunkZ >= lodRadius - halfRadius
-				&& chunkZ <= lodRadius + halfRadius);
-	}
-	
-	
-	
-	
-	
-	//===============================//
-	// BufferBuilder related methods //
-	//===============================//
-	
-	
-	/**
-	 * Called from the LodRenderer to create the
-	 * BufferBuilders at the right size.
-	 * 
-	 * @param bufferMaxCapacity
-	 */
-	public void setupBuffers(int bufferMaxCapacity)
-	{
-		buildableNearBuffer = new BufferBuilder(bufferMaxCapacity);
-		buildableFarBuffer = new BufferBuilder(bufferMaxCapacity);
-	}
-	
-	/**
-	 * Swap the drawable and buildable buffers and return
-	 * the old drawable buffers.
-	 * @param drawableNearBuffer
-	 * @param drawableFarBuffer
-	 */
-	public NearFarBuffer swapBuffers(BufferBuilder drawableNearBuffer, BufferBuilder drawableFarBuffer)
-	{
-		// swap the BufferBuilders
-		BufferBuilder tmp = buildableNearBuffer;
-		buildableNearBuffer = drawableNearBuffer;
-		drawableNearBuffer = tmp;
-		
-		tmp = buildableFarBuffer;
-		buildableFarBuffer = drawableFarBuffer;
-		drawableFarBuffer = tmp;
-		
-		
-		// the buffers have been swapped
-		switchBuffers = false;
-		
-		return new NearFarBuffer(drawableNearBuffer, drawableFarBuffer);
-	}
-	
-	/**
-	 * If this is true the buildable near and far
-	 * buffers have been generated and are ready to be
-	 * sent to the LodRenderer. 
-	 */
-	public boolean newBuffersAvaliable() 
-	{
-		return switchBuffers;
-	}
-	
-	
-	
-	
-}
@@ -1,663 +0,0 @@
-package com.seibel.lod.builders;
-
-import java.awt.Color;
-import java.util.concurrent.ExecutorService;
-import java.util.concurrent.Executors;
-
-import com.seibel.lod.enums.ColorDirection;
-import com.seibel.lod.objects.LodChunk;
-import com.seibel.lod.objects.LodDimension;
-import com.seibel.lod.objects.LodWorld;
-import com.seibel.lod.util.LodUtils;
-
-import net.minecraft.block.BlockState;
-import net.minecraft.block.Blocks;
-import net.minecraft.client.Minecraft;
-import net.minecraft.client.renderer.color.BlockColors;
-import net.minecraft.world.DimensionType;
-import net.minecraft.world.IWorld;
-import net.minecraft.world.chunk.ChunkSection;
-import net.minecraft.world.chunk.IChunk;
-import net.minecraft.world.gen.Heightmap;
-
-/**
- * This object is in charge of creating Lod
- * related objects. 
- * (specifically: Lod World, Dimension, Region, and Chunk objects)
- * 
- * @author James Seibel
- * @version 5-29-2021
- */
-public class LodBuilder
-{
-	private static final Color INVISIBLE = new Color(0,0,0,0);
-
-	private ExecutorService lodGenThreadPool = Executors.newSingleThreadExecutor();
-	
-	/** Default size of any LOD regions we use */
-	public int regionWidth = 5;
-	
-	
-	public static final int CHUNK_DATA_WIDTH = LodChunk.WIDTH;
-	public static final int CHUNK_SECTION_HEIGHT = LodChunk.WIDTH;
-	
-	/**
-	 * This is how many blocks are
-	 * required at a specific y-value
-	 * to constitute a LOD point
-	 */
-	private final int LOD_BLOCK_REQ = 32;
-	// the max number of blocks per layer = 64 (8*8)
-	
-	
-	public LodBuilder()
-	{
-		
-	}
-	
-	
-	
-	public void generateLodChunkAsync(IChunk chunk, LodWorld lodWorld, IWorld world)
-	{
-		if (lodWorld == null || !lodWorld.getIsWorldLoaded())
-			return;
-			
-		// is this chunk from the same world as the lodWorld?
-		if (!lodWorld.getWorldName().equals(LodUtils.getWorldID(world)))
-			// we are not in the same world anymore
-			// don't add this LOD
-			return;
-				
-		
-		// don't try to create an LOD object
-		// if for some reason we aren't
-		// given a valid chunk object
-		if (chunk == null)
-			return;
-			
-		Thread thread = new Thread(() ->
-		{
-			try
-			{
-				DimensionType dim = world.getDimensionType();
-				
-				LodChunk lod = generateLodFromChunk(chunk);
-				
-				LodDimension lodDim;
-				
-				if (lodWorld.getLodDimension(dim) == null)
-				{
-					lodDim = new LodDimension(dim, lodWorld, regionWidth);
-					lodWorld.addLodDimension(lodDim);
-				}
-				else
-				{
-					lodDim = lodWorld.getLodDimension(dim);
-				}
-				
-				lodDim.addLod(lod);
-			}
-			catch(IllegalArgumentException | NullPointerException e)
-			{
-				// if the world changes while LODs are being generated
-				// they will throw errors as they try to access things that no longer
-				// exist.
-			}
-		});
-		lodGenThreadPool.execute(thread);
-		
-		return;
-	}
-	
-	
-	
-	
-	
-	
-	
-	/**
-	 * Creates a LodChunk for a chunk in the given world.
-	 * 
-	 * @throws IllegalArgumentException 
-	 * thrown if either the chunk or world is null.
-	 */
-	public LodChunk generateLodFromChunk(IChunk chunk) throws IllegalArgumentException
-	{
-		if(chunk == null)
-		{
-			throw new IllegalArgumentException("generateLodFromChunk given a null chunk");
-		}
-		
-		Color[] colors = new Color[ColorDirection.values().length];
-		
-		
-		short height = determineTopPoint(chunk.getSections());
-		short depth = determineBottomPoint(chunk.getSections());
-		
-		
-		// determine the average color for each direction
-		for(ColorDirection dir : ColorDirection.values())
-		{
-			colors[dir.value] = generateLodColorForDirection(chunk, dir);
-		}
-		
-		// check to see if there are any invisible sides
-		for(ColorDirection dir : ColorDirection.values())
-		{
-			// if there are any invisible sides
-			// replace them with the top side
-			// (this is done to make sure oceans and other totally
-			// flat locations have the correct side colors)
-			if (dir == ColorDirection.BOTTOM || dir == ColorDirection.TOP)
-				continue;
-			if (colors[dir.value] == INVISIBLE)
-				colors[dir.value] = colors[ColorDirection.TOP.value];
-		}
-		
-		return new LodChunk(chunk.getPos(), height, depth, colors);
-	}
-	
-	
-	
-	
-	
-	
-	//=====================//
-	// constructor helpers //
-	//=====================//
-	
-	
-	/**
-	 * Find the lowest valid point from the bottom.
-	 */
-	private short determineBottomPoint(ChunkSection[] chunkSections)
-	{
-		// search from the bottom up
-		for(int i = 0; i < CHUNK_DATA_WIDTH; i++)
-		{
-			for(int y = 0; y < CHUNK_SECTION_HEIGHT; y++)
-			{
-				if(isLayerValidLodPoint(chunkSections, i, y))
-				{
-					// we found
-					// enough blocks in this
-					// layer to count as an
-					// LOD point
-					return (short) (y + (i * CHUNK_SECTION_HEIGHT));
-				}
-			}
-		}
-		
-		// we never found a valid LOD point
-		return -1;
-	}
-	
-	/**
-	 * Find the lowest valid point from the bottom.
-	 */
-	@SuppressWarnings("unused")
-	private short determineBottomPoint(Heightmap heightmap)
-	{
-		// the heightmap only shows how high the blocks go, it
-		// doesn't have any info about how low they go
-		return 0;
-	}
-	
-	
-	
-	/**
-	 * Find the highest valid point from the Top
-	 */
-	private short determineTopPoint(ChunkSection[] chunkSections)
-	{
-		// search from the top down
-		for(int section = chunkSections.length - 1; section >= 0; section--)
-		{
-			for(int y = CHUNK_DATA_WIDTH - 1; y >= 0; y--)
-			{
-				if(isLayerValidLodPoint(chunkSections, section, y))
-				{
-					// we found
-					// enough blocks in this
-					// layer to count as an
-					// LOD point
-					return (short) (y + (section * CHUNK_SECTION_HEIGHT));
-				}
-			}
-		}
-		
-		// we never found a valid LOD point
-		return -1;
-	}
-	
-	/**
-	 * Find the highest point from the Top
-	 */
-	@SuppressWarnings("unused")
-	private short determineTopPoint(Heightmap heightmap, int endZ)
-	{
-		short highest = 0;
-		for(int x = 0; x < LodChunk.WIDTH; x++)
-		{
-			for(int z = 0; z < LodChunk.WIDTH; z++)
-			{
-				short newHeight = (short) heightmap.getHeight(x, z);
-				if (newHeight > highest)
-					highest = newHeight;
-			}
-		}
-		
-		return highest;
-	}
-	
-	/**
-	 * Generate the color for the given chunk in the given ColorDirection.
-	 */
-	private Color  generateLodColorForDirection(IChunk chunk, ColorDirection colorDir)
-	{
-		Minecraft mc =  Minecraft.getInstance();
-		BlockColors bc = mc.getBlockColors();
-		
-		switch (colorDir)
-		{
-		case TOP:
-			return generateLodColorVertical(chunk, colorDir, bc);
-		case BOTTOM:
-			return generateLodColorVertical(chunk, colorDir, bc);
-			
-		case NORTH:
-			return generateLodColorHorizontal(chunk, colorDir, bc);
-		case SOUTH:
-			return generateLodColorHorizontal(chunk, colorDir, bc);
-			
-		case EAST:
-			return generateLodColorHorizontal(chunk, colorDir, bc);
-		case WEST:
-			return generateLodColorHorizontal(chunk, colorDir, bc);
-		}
-		
-		return INVISIBLE;
-	}
-	
-	
-	
-	
-	
-	
-	/**
-	 * Is the layer between the given X, Z, and dataIndex
-	 * values a valid LOD point?
-	 */
-	private boolean isLayerValidLodPoint(
-			ChunkSection[] chunkSections,
-			int sectionIndex, int y)
-	{
-		// search through this layer
-		int layerBlocks = 0;
-		
-		for(int x = 0; x < LodChunk.WIDTH; x++)
-		{
-			for(int z = 0; z < LodChunk.WIDTH; z++)
-			{
-				if(chunkSections[sectionIndex] == null)
-				{
-					// this section doesn't have any blocks,
-					// it is not a valid section
-					return false;
-				}
-				else
-				{
-					if(chunkSections[sectionIndex].getBlockState(x, y, z) != null && 
-						chunkSections[sectionIndex].getBlockState(x, y, z).getBlock() != Blocks.AIR)
-					{
-						// we found a valid block in
-						// in this layer
-						layerBlocks++;
-						
-						if(layerBlocks >= LOD_BLOCK_REQ)
-						{
-							return true;
-						}
-					}
-				}
-				
-			} // z
-		} // x
-		
-		return false;
-	}
-	
-	/**
-	 * Generates the color of the top or bottom of the given chunk.
-	 * 
-	 * @throws IllegalArgumentException if given a ColorDirection other than TOP or BOTTOM
-	 */
-	private Color generateLodColorVertical(IChunk chunk, ColorDirection colorDir, BlockColors bc)
-	{
-		if(colorDir != ColorDirection.TOP && colorDir != ColorDirection.BOTTOM)
-		{
-			throw new IllegalArgumentException("generateLodColorVertical only accepts the ColorDirection TOP or BOTTOM");
-		}
-		
-		
-		
-		ChunkSection[] chunkSections = chunk.getSections();
-		
-		int numbOfBlocks = 0;
-		int red = 0;
-		int green = 0;
-		int blue = 0;
-		
-		boolean goTopDown = (colorDir == ColorDirection.TOP);
-		
-		
-		// either go top down or bottom up
-		int dataStart = goTopDown? chunkSections.length - 1 : 0;
-		int dataMax = chunkSections.length; 
-		int dataMin = 0;
-		int dataIncrement = goTopDown? -1 : 1;
-		
-		int topStart = goTopDown? CHUNK_SECTION_HEIGHT - 1 : 0;
-		int topMax = CHUNK_SECTION_HEIGHT;
-		int topMin = 0;
-		int topIncrement =  goTopDown? -1 : 1;
-		
-		for(int x = 0; x < CHUNK_DATA_WIDTH; x++)
-		{
-			for(int z = 0; z < CHUNK_DATA_WIDTH; z++)
-			{
-				boolean foundBlock = false;
-				
-				for(int i = dataStart; !foundBlock && i >= dataMin && i < dataMax; i += dataIncrement)
-				{
-					if(!foundBlock && chunkSections[i] != null)
-					{
-						for(int y = topStart; !foundBlock && y >= topMin && y < topMax; y += topIncrement)
-						{
-							int ci;
-							ci = chunkSections[i].getBlockState(x, y, z).materialColor.colorValue;
-							
-							if(ci == 0)
-							{
-								// skip air or invisible blocks
-								continue;
-							}
-							
-							Color c = intToColor(ci);
-							
-							red += c.getRed();
-							green += c.getGreen();
-							blue += c.getBlue();
-							
-							numbOfBlocks++;
-							
-							
-							// we found a valid block, skip to the
-							// next x and z
-							foundBlock = true;
-						}
-					}
-				}
-				
-			}
-		}
-		
-		if(numbOfBlocks == 0)
-			numbOfBlocks = 1;
-		
-		red /= numbOfBlocks;
-		green /= numbOfBlocks;
-		blue /= numbOfBlocks;
-		
-		return new Color(red, green, blue);
-	}
-		
-		/*
-		 * unused variation that can be used with only the heightmap,
-		 * although it just returns the foliage color, so it shouldn't
-		 * be used normally.
-			
-			Heightmap heightmap = chunk.getHeightmap(Heightmap.Type.WORLD_SURFACE_WG);
-			
-			int numbOfBlocks = CHUNK_DATA_WIDTH * CHUNK_DATA_WIDTH;
-			int red = 0;
-			int green = 0;
-			int blue = 0;
-			
-			for(int x = 0; x < CHUNK_DATA_WIDTH; x++)
-			{
-				Biome biome = chunk.getBiomes().getNoiseBiome(x,z, heightmap.getHeight(x, z));
-				Color c = intToColor(biome.getFoliageColor());
-				
-				red += c.getRed();
-				green += c.getGreen();
-				blue += c.getBlue();
-			}
-		}
-		
-		red /= numbOfBlocks;
-		green /= numbOfBlocks;
-		blue /= numbOfBlocks;
-		
-		return new Color(red, green, blue);
-	 */
-	
-	
-	/**
-	 * Generates the color for the sides of the given chunk.
-	 */
-	private Color generateLodColorHorizontal(IChunk chunk, ColorDirection colorDir, BlockColors bc)
-	{
-		if(colorDir != ColorDirection.NORTH && colorDir != ColorDirection.SOUTH && colorDir != ColorDirection.EAST && colorDir != ColorDirection.WEST)
-		{
-			throw new IllegalArgumentException("generateLodColorHorizontal only accepts the ColorDirection N (North), S (South), E (East), or W (West)");
-		}
-		
-		ChunkSection[] chunkSections = chunk.getSections();
-		
-		int numbOfBlocks = 0;
-		int red = 0;
-		int green = 0;
-		int blue = 0;
-		
-		
-		// these don't change since the over direction doesn't matter
-		int overStart = 0;
-		int overIncrement = 1;
-		
-		// determine which direction is "in"
-		int inStart = 0;
-		int inIncrement = 1;
-		switch (colorDir)
-		{
-		case NORTH:
-			inStart = 0;
-			inIncrement = 1;
-			break;
-		case SOUTH:
-			inStart = CHUNK_DATA_WIDTH - 1;
-			inIncrement = -1;
-			break;
-		case EAST:
-			inStart = 0;
-			inIncrement = 1;
-			break;
-		case WEST:
-			inStart = CHUNK_DATA_WIDTH - 1;
-			inIncrement = -1;
-			break;
-		default:
-			// we were given an invalid position, return invisible.
-			// this shouldn't happen and is mostly here to make the
-			// compiler happy
-			return INVISIBLE;
-		}
-		
-		
-		for (int section = 0; section < chunkSections.length; section++)
-		{
-			if (chunkSections[section] == null)
-				continue;
-			
-			for (int y = 0; y < CHUNK_SECTION_HEIGHT; y++)
-			{
-				boolean foundBlock = false;
-				
-				// over moves "over" the side of the chunk
-				// in moves "into" the chunk until it finds a block
-				for (int over = overStart; !foundBlock && over >= 0 && over < CHUNK_DATA_WIDTH; over += overIncrement)
-				{
-					for (int in = inStart; !foundBlock && in >= 0 && in < CHUNK_DATA_WIDTH; in += inIncrement)
-					{
-						int x = -1;
-						int z = -1;
-						
-						// determine which should be X and Z							
-						switch(colorDir)
-						{
-						case NORTH:
-							x = over;
-							z = in;
-							break;
-						case SOUTH:
-							x = over;
-							z = in;
-							break;
-						case EAST:
-							x = in;
-							z = over;
-							break;
-						case WEST:
-							x = in;
-							z = over;
-							break;
-						default:
-							// here to make the compiler happy
-							break;
-						}
-						
-						// if this block is buried, under other blocks
-						// don't add it
-						if(!isBlockPosVisible(chunkSections[section], x,y,z))
-						{
-							// go to the next "over" block location,
-							// don't look at the next "in" location,
-							// since the next "in" location will more than
-							// likely still be covered
-							in = CHUNK_DATA_WIDTH + 2;
-							continue;
-						}
-						
-						
-						int ci;
-						ci = chunkSections[section].getBlockState(x, y, z).getMaterial().getColor().colorValue;
-						
-						if (ci == 0) {
-							// skip air or invisible blocks
-							continue;
-						}
-						
-						Color c = intToColor(ci);
-						
-						red += c.getRed();
-						green += c.getGreen();
-						blue += c.getBlue();
-						
-						numbOfBlocks++;
-						
-						// we found a valid block, skip to the
-						// next x and z
-						foundBlock = true;
-					}
-				}
-				
-				
-			}
-		}
-		
-		// if we didn't find any blocks return invisible
-		if(numbOfBlocks == 0)
-			return INVISIBLE;
-		
-		red /= numbOfBlocks;
-		green /= numbOfBlocks;
-		blue /= numbOfBlocks;
-		
-		return new Color(red, green, blue);
-	}
-	
-	
-	
-	private static BlockState airState = Blocks.AIR.getDefaultState();
-	
-	/** 
-	 * returns true if the block at the given coordinates is open to
-	 * air on at least one side.
-	 */
-	private boolean isBlockPosVisible(ChunkSection chunkSection, int x, int y, int z)
-	{
-		/*
-		// above
-		if (y+1 < CHUNK_SECTION_HEIGHT) // don't go over the top
-			if (chunkSection.getBlockState(x, y+1, z).getBlock() == (Blocks.AIR))
-				return true;
-		// below
-		if (y-1 >= 0) // don't go below the bottom
-			if (chunkSection.getBlockState(x, y-1, z).getBlock() == (Blocks.AIR))
-				return true;
-		*/
-		
-		// north
-		if (z-1 > 0)
-			if (chunkSection.getBlockState(x, y, z-1) == airState)
-				return true;
-		// south
-		if (z+1 < LodChunk.WIDTH)
-			if (chunkSection.getBlockState(x, y, z+1) == airState)
-				return true;
-		
-		// east
-		if (x+1 <= LodChunk.WIDTH)
-			if (chunkSection.getBlockState(x+1, y, z) == airState)
-				return true;
-		// west
-		if (x-1 >= 0)
-			if (chunkSection.getBlockState(x-1, y, z) == airState)
-				return true;
-		
-			
-		return false;
-	}
-
-
-
-	
-	
-	
-	
-	
-	
-	/**
-	 * Convert a BlockColors int into a Color object.
-	 */
-	private Color intToColor(int num)
-	{
-		int filter = 0b11111111;
-		
-		int red = (num >> 16 ) & filter;
-		int green = (num >> 8 ) & filter;
-		int blue = num & filter;
-		
-		return new Color(red, green, blue);
-	}
-	
-	/**
-	 * Convert a Color into a BlockColors object.
-	 */
-	@SuppressWarnings("unused")
-	private int colorToInt(Color color)
-	{
-		return color.getRGB();
-	}
-	
-}
@@ -1,125 +0,0 @@
-package com.seibel.lod.builders;
-
-import com.seibel.lod.objects.LodDimension;
-import com.seibel.lod.objects.LodRegion;
-import com.seibel.lod.proxy.ClientProxy;
-import com.seibel.lod.render.LodRender;
-import com.seibel.lod.util.LodUtils;
-
-import net.minecraft.util.math.ChunkPos;
-import net.minecraft.world.chunk.ChunkStatus;
-import net.minecraft.world.chunk.IChunk;
-import net.minecraft.world.server.ServerWorld;
-import net.minecraftforge.common.WorldWorkerManager.IWorker;
-
-/**
- * This is used to generate a LodChunk at a given ChunkPos.
- * 
- * @author James Seibel
- * @version 03-31-2021
- */
-public class LodChunkGenWorker implements IWorker
-{
-    private ServerWorld serverWorld;
-    private ChunkPos pos;
-    private LodDimension lodDim;
-    private LodBuilder lodBuilder;
-    private LodBufferBuilder lodBufferBuilder;
-    private LodRender lodRender;
-    
-    public LodChunkGenWorker(ChunkPos newPos, LodRender newLodRenderer, 
-    		LodBuilder newLodBuilder, LodBufferBuilder newLodBufferBuilder, 
-    		LodDimension newLodDimension)
-    {
-        serverWorld  = LodUtils.getServerWorldFromDimension(newLodDimension.dimension);
-        if (serverWorld == null)
-        	throw new IllegalArgumentException("LodChunkGenWorker must have a non-null ServerWorld"); 
-        	
-        pos = newPos;
-        lodDim = newLodDimension;
-        lodBuilder = newLodBuilder;
-        lodBufferBuilder = newLodBufferBuilder;
-        lodRender = newLodRenderer;
-    }
-    
-    @Override
-    public boolean doWork()
-    {
-        if (pos != null)
-        {
-            int x = pos.x;
-            int z = pos.z;
-            
-            // only generate LodChunks if they can
-            // be added to the current LodDimension
-            if (lodDim.regionIsInRange(pos.x / LodRegion.SIZE, pos.z / LodRegion.SIZE))
-            {
-                IChunk chunk;// = serverWorld.getChunk(x, z, ChunkStatus.EMPTY, true);
-                
-                //long startTime = System.currentTimeMillis();
-                chunk = serverWorld.getChunk(x, z, ChunkStatus.FEATURES);
-                //long endTime = System.currentTimeMillis();
-                //System.out.println(endTime - startTime + "\t" + lodBuilder.hasBlockData(chunk));
-                
-                
-                lodBuilder.generateLodChunkAsync(chunk, ClientProxy.getLodWorld(), serverWorld);
-                // this is called so that the new LOD chunk is drawn
-                // after it is generated
-                lodRender.regenerateLODsNextFrame();
-                
-                
-                // useful for debugging
-//                ClientProxy.LOGGER.info(lodDim.getNumberOfLods());
-                
-//                if (lodDim.getLodFromCoordinates(x, z) != null)
-//                	ClientProxy.LOGGER.info(x + " " + z + " Success!");
-//                else
-//                	ClientProxy.LOGGER.info(x + " " + z);
-            }
-            // can be used for debugging
-            //else
-            //{
-            //	System.out.println("Out of range " + x + " " + z);
-            //}
-            
-            lodBufferBuilder.numberOfChunksWaitingToGenerate--;
-            
-            pos = null;
-        }
-        
-        return false;
-    }
-    
-    @Override
-    public boolean hasWork()
-    {
-        return pos != null;
-    }
-    
-    /*
-     * performance/generation tests related to
-     * serverWorld.getChunk(x, z, ChunkStatus. *** )
-     
-     true/false is whether they generated blocks or not
-     the time is how long it took to generate
-     
-     ChunkStatus.EMPTY					0  - 1  ms	false	(empty, what did you expect? :P)
-     ChunkStatus.STRUCTURE_REFERENCES	1  - 2  ms  false	(no height, only generates some chunks)
-     ChunkStatus.BIOMES 				1  - 10 ms	false	(no height)
-     ChunkStatus.NOISE					4  - 15 ms	true	(all blocks are stone)
-     ChunkStatus.LIQUID_CARVERS			6  - 12 ms	true	(no snow/trees, just grass)
-     ChunkStatus.SURFACE				5  - 15 ms	true	(no snow/trees, just grass)
-     ChunkStatus.CARVERS				5  - 30 ms	true	(no snow/trees, just grass)
-     ChunkStatus.FEATURES				7  - 25 ms	true
-     ChunkStatus.HEIGHTMAPS 			20 - 40 ms	true
-     ChunkStatus.LIGHT					20 - 40 ms	true
-     ChunkStatus.FULL 					30 - 50 ms	true
-     ChunkStatus.SPAWN			   		50 - 80 ms	true
-     
-     
-     At this point I would suggest using FEATURES, as it generates snow and trees
-     (and any other object that is needed to make biomes distinct)
-     
-     Otherwise if snow/trees aren't necessary SURFACE is the next fastest (although not by much)
-     */
-}
@@ -0,0 +1,948 @@
+/*
+ *    This file is part of the Distant Horizon mod (formerly the LOD Mod),
+ *    licensed under the GNU GPL v3 License.
+ *
+ *    Copyright (C) 2020  James Seibel
+ *
+ *    This program is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, version 3.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.seibel.lod.builders.bufferBuilding;
+
+import java.nio.ByteBuffer;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+import java.util.Map;
+import java.util.concurrent.Callable;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+import java.util.concurrent.Future;
+import java.util.concurrent.locks.ReentrantLock;
+
+import org.lwjgl.opengl.GL11;
+import org.lwjgl.opengl.GL15;
+import org.lwjgl.opengl.GL15C;
+import org.lwjgl.opengl.GL45;
+
+import com.google.common.util.concurrent.ThreadFactoryBuilder;
+import com.mojang.blaze3d.systems.RenderSystem;
+import com.seibel.lod.builders.bufferBuilding.lodTemplates.Box;
+import com.seibel.lod.config.LodConfig;
+import com.seibel.lod.enums.GlProxyContext;
+import com.seibel.lod.enums.VanillaOverdraw;
+import com.seibel.lod.objects.LodDimension;
+import com.seibel.lod.objects.LodRegion;
+import com.seibel.lod.objects.PosToRenderContainer;
+import com.seibel.lod.objects.RegionPos;
+import com.seibel.lod.proxy.ClientProxy;
+import com.seibel.lod.proxy.GlProxy;
+import com.seibel.lod.render.LodRenderer;
+import com.seibel.lod.util.DataPointUtil;
+import com.seibel.lod.util.DetailDistanceUtil;
+import com.seibel.lod.util.LevelPosUtil;
+import com.seibel.lod.util.LodThreadFactory;
+import com.seibel.lod.util.LodUtil;
+import com.seibel.lod.util.ThreadMapUtil;
+import com.seibel.lod.wrappers.MinecraftWrapper;
+
+import net.minecraft.client.renderer.BufferBuilder;
+import net.minecraft.client.renderer.vertex.VertexBuffer;
+import net.minecraft.client.world.ClientWorld;
+import net.minecraft.util.Direction;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.util.math.ChunkPos;
+import net.minecraft.world.LightType;
+
+/**
+ * This object is used to create NearFarBuffer objects.
+ * @author James Seibel
+ * @version 10-10-2021
+ */
+public class LodBufferBuilder
+{
+	private static final MinecraftWrapper mc = MinecraftWrapper.INSTANCE;
+	
+	/** The thread used to generate new LODs off the main thread. */
+	public static final ExecutorService mainGenThread = Executors.newSingleThreadExecutor(new LodThreadFactory(LodBufferBuilder.class.getSimpleName() + " - main"));
+	/** The threads used to generate buffers. */
+	public static final ExecutorService bufferBuilderThreads = Executors.newFixedThreadPool(LodConfig.CLIENT.advancedModOptions.threading.numberOfBufferBuilderThreads.get(), new ThreadFactoryBuilder().setNameFormat("Buffer-Builder-%d").build());
+	
+	/**
+	 * When uploading to a buffer that is too small,
+	 * recreate it this many times bigger than the upload payload
+	 */
+	public static final double BUFFER_EXPANSION_MULTIPLIER = 1.5;
+	
+	/**
+	 * When buffers are first created they are allocated to this size (in Bytes).
+	 * This size will be too small, more than likely. The buffers will be expanded
+	 * when need be to fit the larger sizes.
+	 */
+	public static final int DEFAULT_MEMORY_ALLOCATION = 1024;
+	
+	public static int skyLightPlayer = 15;
+	
+	/**
+	 * How many buffers there are for the given region. <Br>
+	 * This is done because some regions may require more memory than
+	 * can be directly allocated, so we split the regions into smaller sections. <Br>
+	 * This keeps track of those sections.
+	 */
+	public volatile int[][] numberOfBuffersPerRegion;
+	
+	/** Stores the vertices when building the VBOs */
+	public volatile BufferBuilder[][][] buildableBuffers;
+	
+	/** The OpenGL IDs of the storage buffers used by the buildableVbos */
+	public int[][][] buildableStorageBufferIds;
+	/** The OpenGL IDs of the storage buffers used by the drawableVbos */
+	public int[][][] drawableStorageBufferIds;
+	
+	/** used to debug how the buildableStorageBuffers are growing */
+	public int[][][] bufferPreviousCapacity;
+	/**
+	 * This is toggled when the buffers are swapped, so we only
+	 * display the expansion log for one set of buffers
+	 */
+	public boolean printExpansionLog = true;
+	
+	/** Used when building new VBOs */
+	public volatile VertexBuffer[][][] buildableVbos;
+	/** VBOs that are sent over to the LodNodeRenderer */
+	public volatile VertexBuffer[][][] drawableVbos;
+	
+	/**
+	 * if this is true the LOD buffers are currently being
+	 * regenerated.
+	 */
+	public boolean generatingBuffers = false;
+	
+	/**
+	 * if this is true new LOD buffers have been generated
+	 * and are waiting to be swapped with the drawable buffers
+	 */
+	private boolean switchVbos = false;
+	
+	/** Size of the buffer builders in bytes last time we created them */
+	public int previousBufferSize = 0;
+	
+	/** Width of the dimension in regions last time we created the buffers */
+	public int previousRegionWidth = 0;
+	
+	/** this is used to prevent multiple threads creating, destroying, or using the buffers at the same time */
+	private final ReentrantLock bufferLock = new ReentrantLock();
+	
+	private volatile Box[][] boxCache;
+	private volatile PosToRenderContainer[][] setsToRender;
+	private volatile RegionPos center;
+	
+	/**
+	 * This is the ChunkPos the player was at the last time the buffers were built.
+	 * IE the center of the buffers last time they were built
+	 */
+	private volatile ChunkPos drawableCenterChunkPos = new ChunkPos(0, 0);
+	private volatile ChunkPos buildableCenterChunkPos = new ChunkPos(0, 0);
+	
+	
+	
+	
+	
+	
+	public LodBufferBuilder()
+	{
+		
+	}
+	
+	/**
+	 * Create a thread to asynchronously generate LOD buffers
+	 * centered around the given camera X and Z.
+	 * <br>
+	 * This method will write to the drawable near and far buffers.
+	 * <br>
+	 * After the buildable buffers have been generated they must be
+	 * swapped with the drawable buffers in the LodRenderer to be drawn.
+	 */
+	public void generateLodBuffersAsync(LodRenderer renderer, LodDimension lodDim,
+			BlockPos playerBlockPos, boolean fullRegen)
+	{
+		
+		// only allow one generation process to happen at a time
+		if (generatingBuffers)
+			return;
+		
+		if (buildableBuffers == null)
+			// setupBuffers hasn't been called yet
+			return;
+		
+		generatingBuffers = true;
+		
+		
+		Thread thread = new Thread(() ->
+										   generateLodBuffersThread(renderer, lodDim, playerBlockPos, fullRegen));
+		
+		mainGenThread.execute(thread);
+	}
+	
+	// this was pulled out as a separate method so that it could be
+	// more easily edited by hot swapping. Because, As far as James is aware
+	// you can't hot swap lambda expressions.
+	private void generateLodBuffersThread(LodRenderer renderer, LodDimension lodDim,
+			BlockPos playerBlockPos, boolean fullRegen)
+	{
+		bufferLock.lock();
+		
+		try
+		{
+			// round the player's block position down to the nearest chunk BlockPos
+			ChunkPos playerChunkPos = new ChunkPos(playerBlockPos);
+			BlockPos playerBlockPosRounded = playerChunkPos.getWorldPosition();
+			
+			
+			long startTime = System.currentTimeMillis();
+			
+			ArrayList<Callable<Boolean>> nodeToRenderThreads = new ArrayList<>(lodDim.getWidth() * lodDim.getWidth());
+			
+			startBuffers(fullRegen, lodDim);
+			
+			
+			RegionPos playerRegionPos = new RegionPos(playerChunkPos);
+			if (center == null)
+				center = playerRegionPos;
+			
+			if (setsToRender == null)
+				setsToRender = new PosToRenderContainer[lodDim.getWidth()][lodDim.getWidth()];
+			
+			if (setsToRender.length != lodDim.getWidth())
+				setsToRender = new PosToRenderContainer[lodDim.getWidth()][lodDim.getWidth()];
+			
+			if (boxCache == null)
+				boxCache = new Box[lodDim.getWidth()][lodDim.getWidth()];
+			
+			if (boxCache.length != lodDim.getWidth())
+				boxCache = new Box[lodDim.getWidth()][lodDim.getWidth()];
+			
+			// this will be the center of the VBOs once they have been built
+			buildableCenterChunkPos = playerChunkPos;
+			
+			
+			//================================//
+			// create the nodeToRenderThreads //
+			//================================//
+			
+			ClientWorld world = mc.getClientWorld();
+			skyLightPlayer = world.getBrightness(LightType.SKY, playerBlockPos);
+			
+			for (int xRegion = 0; xRegion < lodDim.getWidth(); xRegion++)
+			{
+				for (int zRegion = 0; zRegion < lodDim.getWidth(); zRegion++)
+				{
+					if (lodDim.doesRegionNeedBufferRegen(xRegion, zRegion) || fullRegen)
+					{
+						RegionPos regionPos = new RegionPos(
+								xRegion + lodDim.getCenterRegionPosX() - Math.floorDiv(lodDim.getWidth(), 2),
+								zRegion + lodDim.getCenterRegionPosZ() - Math.floorDiv(lodDim.getWidth(), 2));
+						
+						// local position in the vbo and bufferBuilder arrays
+						BufferBuilder[] currentBuffers = buildableBuffers[xRegion][zRegion];
+						LodRegion region = lodDim.getRegion(regionPos.x, regionPos.z);
+						
+						if (region == null)
+							continue;
+						
+						// make sure the buffers weren't
+						// changed while we were running this method
+						if (currentBuffers == null || !currentBuffers[0].building())
+							return;
+						
+						byte minDetail = region.getMinDetailLevel();
+						
+						
+						final int xR = xRegion;
+						final int zR = zRegion;
+						
+						//we create the Callable to use for the buffer builder creation
+						Callable<Boolean> dataToRenderThread = () ->
+						{
+							//Variable initialization
+							byte detailLevel;
+							int posX;
+							int posZ;
+							int xAdj;
+							int zAdj;
+							int bufferIndex;
+							boolean posNotInPlayerChunk;
+							boolean adjPosInPlayerChunk;
+							Box box = ThreadMapUtil.getBox();
+							boolean[] adjShadeDisabled = ThreadMapUtil.getAdjShadeDisabledArray();
+							
+							// determine how many LODs we can stack vertically
+							int maxVerticalData = DetailDistanceUtil.getMaxVerticalData((byte) 0);
+							
+							//we get or create the map that will contain the adj data
+							Map<Direction, long[]> adjData = ThreadMapUtil.getAdjDataArray(maxVerticalData);
+							
+							//previous setToRender cache
+							if (setsToRender[xR][zR] == null)
+								setsToRender[xR][zR] = new PosToRenderContainer(minDetail, regionPos.x, regionPos.z);
+							
+							
+							//We ask the lod dimension which block we have to render given the player position
+							PosToRenderContainer posToRender = setsToRender[xR][zR];
+							posToRender.clear(minDetail, regionPos.x, regionPos.z);
+							
+							lodDim.getPosToRender(
+									posToRender,
+									regionPos,
+									playerBlockPosRounded.getX(),
+									playerBlockPosRounded.getZ());
+							
+							
+							
+							// keep a local version, so we don't have to worry about indexOutOfBounds Exceptions
+							// if it changes in the LodRenderer while we are working here
+							boolean[][] vanillaRenderedChunks = renderer.vanillaRenderedChunks;
+							short gameChunkRenderDistance = (short) (vanillaRenderedChunks.length / 2 - 1);
+							
+							
+							
+							for (int index = 0; index < posToRender.getNumberOfPos(); index++)
+							{
+								bufferIndex = Math.floorMod(index, currentBuffers.length);
+								detailLevel = posToRender.getNthDetailLevel(index);
+								posX = posToRender.getNthPosX(index);
+								posZ = posToRender.getNthPosZ(index);
+								
+								int chunkXdist = LevelPosUtil.getChunkPos(detailLevel, posX) - playerChunkPos.x;
+								int chunkZdist = LevelPosUtil.getChunkPos(detailLevel, posZ) - playerChunkPos.z;
+								
+								//We don't want to render this fake block if
+								//The block is inside the render distance with, is not bigger than a chunk and is positioned in a chunk set as vanilla rendered
+								//
+								//The block is in the player chunk or in a chunk adjacent to the player
+								if(isThisPositionGoingToBeRendered(detailLevel, posX, posZ, playerChunkPos, vanillaRenderedChunks, gameChunkRenderDistance))
+								{
+									continue;
+								}
+								
+								//we check if the block to render is not in player chunk
+								posNotInPlayerChunk = !(chunkXdist == 0 && chunkZdist == 0);
+										
+																					// We extract the adj data in the four cardinal direction
+								
+								// we first reset the adjShadeDisabled. This is used to disable the shade on the border when we have transparent block like water or glass
+								// to avoid having a "darker border" underground
+								Arrays.fill(adjShadeDisabled, false);
+								
+								//We check every adj block in each direction
+								for (Direction direction : Box.ADJ_DIRECTIONS)
+								{
+									
+									xAdj = posX + Box.DIRECTION_NORMAL_MAP.get(direction).getX();
+									zAdj = posZ + Box.DIRECTION_NORMAL_MAP.get(direction).getZ();
+									long data;
+									chunkXdist = LevelPosUtil.getChunkPos(detailLevel, xAdj) - playerChunkPos.x;
+									chunkZdist = LevelPosUtil.getChunkPos(detailLevel, zAdj) - playerChunkPos.z;
+									adjPosInPlayerChunk = (chunkXdist == 0 && chunkZdist == 0);
+									
+									//If the adj block is rendered in the same region and with same detail
+									// and is positioned in a place that is not going to be rendered by vanilla game
+									// then we can set this position as adj
+									// We avoid cases where the adjPosition is in player chunk while the position is not
+									// to always have a wall underwater
+									if(posToRender.contains(detailLevel, xAdj, zAdj)
+										&& !isThisPositionGoingToBeRendered(detailLevel, xAdj, zAdj, playerChunkPos, vanillaRenderedChunks, gameChunkRenderDistance)
+										&& !(posNotInPlayerChunk && adjPosInPlayerChunk))
+									{
+										for (int verticalIndex = 0; verticalIndex < lodDim.getMaxVerticalData(detailLevel, xAdj, zAdj); verticalIndex++)
+										{
+											data = lodDim.getData(detailLevel, xAdj, zAdj, verticalIndex);
+											adjShadeDisabled[Box.DIRECTION_INDEX.get(direction)] = false;
+											adjData.get(direction)[verticalIndex] = data;
+										}
+									}
+									else
+									{
+										//Other wise we check if this position is
+										data = lodDim.getSingleData(detailLevel, xAdj, zAdj);
+										
+										adjData.get(direction)[0] = DataPointUtil.EMPTY_DATA;
+										
+										if ((isThisPositionGoingToBeRendered(detailLevel, xAdj, zAdj, playerChunkPos, vanillaRenderedChunks, gameChunkRenderDistance) || (posNotInPlayerChunk && adjPosInPlayerChunk))
+													&& !DataPointUtil.isVoid(data))
+										{
+											adjShadeDisabled[Box.DIRECTION_INDEX.get(direction)] = DataPointUtil.getAlpha(data) < 255;
+										}
+									}
+								}
+								
+								
+								// We render every vertical lod present in this position
+								// We only stop when we find a block that is void or non existing block
+								long data;
+								for (int verticalIndex = 0; verticalIndex < lodDim.getMaxVerticalData(detailLevel, posX, posZ); verticalIndex++)
+								{
+									
+									//we get the above block as adj UP
+									if (verticalIndex > 0)
+									{
+										adjData.get(Direction.UP)[0] = lodDim.getData(detailLevel, posX, posZ, verticalIndex - 1);
+									}
+									else
+									{
+										adjData.get(Direction.UP)[0] = DataPointUtil.EMPTY_DATA;
+									}
+									
+									
+									//we get the below block as adj DOWN
+									if (verticalIndex < lodDim.getMaxVerticalData(detailLevel, posX, posZ) - 1)
+									{
+										adjData.get(Direction.DOWN)[0] = lodDim.getData(detailLevel, posX, posZ, verticalIndex + 1);
+									}
+									else
+									{
+										adjData.get(Direction.DOWN)[0] = DataPointUtil.EMPTY_DATA;
+									}
+									
+									//We extract the data to render
+									data = lodDim.getData(detailLevel, posX, posZ, verticalIndex);
+									
+									//If the data is not renderable (Void or non existing) we stop since there is no data left in this position
+									if (DataPointUtil.isVoid(data) || !DataPointUtil.doesItExist(data))
+										break;
+									
+									//We send the call to create the vertices
+									LodConfig.CLIENT.graphics.advancedGraphicsOption.lodTemplate.get().template.addLodToBuffer(currentBuffers[bufferIndex], playerBlockPosRounded, data, adjData,
+											detailLevel, posX, posZ, box, renderer.previousDebugMode, renderer.lightMap, adjShadeDisabled);
+								}
+								
+								
+							} // for pos to in list to render
+							// the thread executed successfully
+							return true;
+						};
+						
+						
+						nodeToRenderThreads.add(dataToRenderThread);
+						
+						
+					}
+				} // region z
+			} // region z
+			
+			
+			long executeStart = System.currentTimeMillis();
+			// wait for all threads to finish
+			List<Future<Boolean>> futuresBuffer = bufferBuilderThreads.invokeAll(nodeToRenderThreads);
+			for (Future<Boolean> future : futuresBuffer)
+			{
+				// the future will be false if its thread failed
+				if (!future.get())
+				{
+					ClientProxy.LOGGER.warn("LodBufferBuilder ran into trouble and had to start over.");
+					break;
+				}
+			}
+			long executeEnd = System.currentTimeMillis();
+			
+			
+			long endTime = System.currentTimeMillis();
+			@SuppressWarnings("unused")
+			long buildTime = endTime - startTime;
+			@SuppressWarnings("unused")
+			long executeTime = executeEnd - executeStart;
+
+//			ClientProxy.LOGGER.info("Thread Build time: " + buildTime + " ms" + '\n' +
+//					                        "thread execute time: " + executeTime + " ms");
+			
+			// mark that the buildable buffers as ready to swap
+			switchVbos = true;
+		}
+		catch (Exception e)
+		{
+			ClientProxy.LOGGER.warn("\"LodNodeBufferBuilder.generateLodBuffersAsync\" ran into trouble: ");
+			e.printStackTrace();
+		}
+		finally
+		{
+			// clean up any potentially open resources
+			if (buildableBuffers != null)
+				closeBuffers(fullRegen, lodDim);
+			
+			try
+			{
+				// upload the new buffers
+				uploadBuffers(fullRegen, lodDim);
+			}
+			catch (Exception e)
+			{
+				ClientProxy.LOGGER.warn("\"LodNodeBufferBuilder.generateLodBuffersAsync\" was unable to upload the buffers to the GPU: " + e.getMessage());
+				e.printStackTrace();
+			}
+			
+			// regardless of whether we were able to successfully create
+			// the buffers, we are done generating.
+			generatingBuffers = false;
+			bufferLock.unlock();
+		}
+	}
+	
+	private boolean isThisPositionGoingToBeRendered(byte detailLevel, int posX, int posZ, ChunkPos playerChunkPos, boolean[][] vanillaRenderedChunks, int gameChunkRenderDistance){
+		
+		
+		// skip any chunks that Minecraft is going to render
+		int chunkXdist = LevelPosUtil.getChunkPos(detailLevel, posX) - playerChunkPos.x;
+		int chunkZdist = LevelPosUtil.getChunkPos(detailLevel, posZ) - playerChunkPos.z;
+		
+		// check if the chunk is on the border
+		boolean isItBorderPos;
+		if (LodConfig.CLIENT.graphics.advancedGraphicsOption.vanillaOverdraw.get() == VanillaOverdraw.BORDER)
+			isItBorderPos = LodUtil.isBorderChunk(vanillaRenderedChunks, chunkXdist + gameChunkRenderDistance + 1, chunkZdist + gameChunkRenderDistance + 1);
+		else
+			isItBorderPos = false;
+		
+		
+		//boolean smallRenderDistance = gameChunkRenderDistance <= LodUtil.MINIMUM_RENDER_DISTANCE_FOR_PARTIAL_OVERDRAW;
+		
+		// get the positions that will be rendered
+		
+		boolean vanillaRenderedPosition = gameChunkRenderDistance >= Math.abs(chunkXdist)
+												  && gameChunkRenderDistance >= Math.abs(chunkZdist)
+												  && detailLevel <= LodUtil.CHUNK_DETAIL_LEVEL
+												  && vanillaRenderedChunks[chunkXdist + gameChunkRenderDistance + 1][chunkZdist + gameChunkRenderDistance + 1];
+		
+		
+		return (vanillaRenderedPosition && (!(isItBorderPos)));
+	}
+	
+	
+	
+	
+	
+	
+	//===============================//
+	// BufferBuilder related methods //
+	//===============================//
+	
+	/**
+	 * Called from the LodRenderer to create the
+	 * BufferBuilders. <br><br>
+	 * <p>
+	 * May have to wait for the bufferLock to open.
+	 */
+	public void setupBuffers(LodDimension lodDimension)
+	{
+		bufferLock.lock();
+		int numbRegionsWide = lodDimension.getWidth();
+		long regionMemoryRequired;
+		int numberOfBuffers;
+		
+		previousRegionWidth = numbRegionsWide;
+		numberOfBuffersPerRegion = new int[numbRegionsWide][numbRegionsWide];
+		buildableBuffers = new BufferBuilder[numbRegionsWide][numbRegionsWide][];
+		
+		buildableVbos = new VertexBuffer[numbRegionsWide][numbRegionsWide][];
+		drawableVbos = new VertexBuffer[numbRegionsWide][numbRegionsWide][];
+		
+		buildableStorageBufferIds = new int[numbRegionsWide][numbRegionsWide][];
+		drawableStorageBufferIds = new int[numbRegionsWide][numbRegionsWide][];
+		
+		bufferPreviousCapacity = new int[numbRegionsWide][numbRegionsWide][];
+		
+		for (int x = 0; x < numbRegionsWide; x++)
+		{
+			for (int z = 0; z < numbRegionsWide; z++)
+			{
+				regionMemoryRequired = DEFAULT_MEMORY_ALLOCATION;
+				
+				// if the memory required is greater than the max buffer 
+				// capacity, divide the memory across multiple buffers
+				if (regionMemoryRequired > LodUtil.MAX_ALLOCATABLE_DIRECT_MEMORY)
+				{
+					numberOfBuffers = (int) Math.ceil(regionMemoryRequired / LodUtil.MAX_ALLOCATABLE_DIRECT_MEMORY) + 1;
+					
+					// TODO shouldn't this be determined with regionMemoryRequired?
+					// always allocating the max memory is a bit expensive isn't it?
+					regionMemoryRequired = LodUtil.MAX_ALLOCATABLE_DIRECT_MEMORY;
+					numberOfBuffersPerRegion[x][z] = numberOfBuffers;
+					buildableBuffers[x][z] = new BufferBuilder[numberOfBuffers];
+					buildableVbos[x][z] = new VertexBuffer[numberOfBuffers];
+					drawableVbos[x][z] = new VertexBuffer[numberOfBuffers];
+					
+					buildableStorageBufferIds[x][z] = new int[numberOfBuffers];
+					drawableStorageBufferIds[x][z] = new int[numberOfBuffers];
+					bufferPreviousCapacity[x][z] = new int[numberOfBuffers];
+				}
+				else
+				{
+					// we only need one buffer for this region
+					numberOfBuffersPerRegion[x][z] = 1;
+					buildableBuffers[x][z] = new BufferBuilder[1];
+					buildableVbos[x][z] = new VertexBuffer[1];
+					drawableVbos[x][z] = new VertexBuffer[1];
+					
+					buildableStorageBufferIds[x][z] = new int[1];
+					drawableStorageBufferIds[x][z] = new int[1];
+					bufferPreviousCapacity[x][z] = new int[1];
+				}
+				
+				
+				for (int i = 0; i < numberOfBuffersPerRegion[x][z]; i++)
+				{
+					bufferPreviousCapacity[x][z][i] = (int) regionMemoryRequired;
+					
+					buildableBuffers[x][z][i] = new BufferBuilder((int) regionMemoryRequired);
+					
+					buildableVbos[x][z][i] = new VertexBuffer(LodUtil.LOD_VERTEX_FORMAT);
+					drawableVbos[x][z][i] = new VertexBuffer(LodUtil.LOD_VERTEX_FORMAT);
+					
+					
+					// create the initial mapped buffers (system memory)
+					GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, buildableVbos[x][z][i].id);
+					GL15.glBufferData(GL15.GL_ARRAY_BUFFER, regionMemoryRequired, GL45.GL_DYNAMIC_DRAW);
+					GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, 0);
+					
+					GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, drawableVbos[x][z][i].id);
+					GL15.glBufferData(GL15.GL_ARRAY_BUFFER, regionMemoryRequired, GL45.GL_DYNAMIC_DRAW);
+					GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, 0);
+					
+					
+					// create the buffer storage (GPU memory)
+					buildableStorageBufferIds[x][z][i] = GL45.glGenBuffers();
+					GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, buildableStorageBufferIds[x][z][i]);
+					GL45.glBufferStorage(GL15.GL_ARRAY_BUFFER, regionMemoryRequired, 0); // the 0 flag means to create the storage in the GPUs memory
+					GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, 0);
+					
+					drawableStorageBufferIds[x][z][i] = GL45.glGenBuffers();
+					GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, drawableStorageBufferIds[x][z][i]);
+					GL45.glBufferStorage(GL15.GL_ARRAY_BUFFER, regionMemoryRequired, 0);
+					GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, 0);
+				}
+			}
+		}
+		
+		bufferLock.unlock();
+	}
+	
+	
+	
+	/**
+	 * Sets the buffers and Vbos to null, forcing them to be recreated <br>
+	 * and destroys any bound OpenGL objects. <br><br>
+	 * <p>
+	 * May have to wait for the bufferLock to open.
+	 */
+	public void destroyBuffers()
+	{
+		bufferLock.lock();
+		
+		
+		// destroy the buffer storages if they aren't already
+		if (buildableStorageBufferIds != null)
+		{
+			for (int x = 0; x < buildableStorageBufferIds.length; x++)
+			{
+				for (int z = 0; z < buildableStorageBufferIds.length; z++)
+				{
+					for (int i = 0; i < buildableStorageBufferIds[x][z].length; i++)
+					{
+						int buildableId = buildableStorageBufferIds[x][z][i];
+						int drawableId = drawableStorageBufferIds[x][z][i];
+						
+						// Send this over to the render thread, if this is being
+						// called we aren't worried about stuttering anyway.
+						// This way we don't have to worry about what context this
+						// was called from (if any).
+						RenderSystem.recordRenderCall(() ->
+						{
+							GL45.glDeleteBuffers(buildableId);
+							GL45.glDeleteBuffers(drawableId);
+						});
+					}
+				}
+			}
+		}
+		
+		buildableStorageBufferIds = null;
+		drawableStorageBufferIds = null;
+		
+		
+		
+		
+		// destroy the VBOs if they aren't already
+		if (buildableVbos != null)
+		{
+			for (int i = 0; i < buildableVbos.length; i++)
+			{
+				for (int j = 0; j < buildableVbos.length; j++)
+				{
+					for (int k = 0; k < buildableVbos[i][j].length; k++)
+					{
+						int buildableId;
+						int drawableId;
+						
+						// variables passed into a lambda expression
+						// need to be effectively final, so we have
+						// to use an else statement here
+						if (buildableVbos[i][j][k] != null)
+							buildableId = buildableVbos[i][j][k].id;
+						else
+							buildableId = 0;
+						
+						if (drawableVbos[i][j][k] != null)
+							drawableId = drawableVbos[i][j][k].id;
+						else
+							drawableId = 0;
+						
+						
+						RenderSystem.recordRenderCall(() ->
+						{
+							if (buildableId != 0)
+								GL45.glDeleteBuffers(buildableId);
+							if (drawableId != 0)
+								GL45.glDeleteBuffers(drawableId);
+						});
+					}
+				}
+			}
+		}
+		
+		buildableVbos = null;
+		drawableVbos = null;
+		
+		
+		// these don't contain any OpenGL objects, so
+		// they don't require any special clean-up
+		buildableBuffers = null;
+		
+		bufferLock.unlock();
+	}
+	
+	/** Calls begin on each of the buildable BufferBuilders. */
+	private void startBuffers(boolean fullRegen, LodDimension lodDim)
+	{
+		for (int x = 0; x < buildableBuffers.length; x++)
+		{
+			for (int z = 0; z < buildableBuffers.length; z++)
+			{
+				if (fullRegen || lodDim.doesRegionNeedBufferRegen(x, z))
+				{
+					for (int i = 0; i < buildableBuffers[x][z].length; i++)
+					{
+						// for some reason BufferBuilder.vertexCounts
+						// isn't reset unless this is called, which can cause
+						// a false indexOutOfBoundsException
+						buildableBuffers[x][z][i].discard();
+						
+						buildableBuffers[x][z][i].begin(GL11.GL_QUADS, LodUtil.LOD_VERTEX_FORMAT);
+					}
+				}
+			}
+		}
+	}
+	
+	/** Calls end on each of the buildable BufferBuilders. */
+	private void closeBuffers(boolean fullRegen, LodDimension lodDim)
+	{
+		for (int x = 0; x < buildableBuffers.length; x++)
+			for (int z = 0; z < buildableBuffers.length; z++)
+				for (int i = 0; i < buildableBuffers[x][z].length; i++)
+					if (buildableBuffers[x][z][i] != null && buildableBuffers[x][z][i].building() && (fullRegen || lodDim.doesRegionNeedBufferRegen(x, z)))
+						buildableBuffers[x][z][i].end();
+	}
+	
+	
+	/** Upload all buildableBuffers to the GPU. */
+	private void uploadBuffers(boolean fullRegen, LodDimension lodDim)
+	{
+		GlProxy glProxy = GlProxy.getInstance();
+		
+		try
+		{
+			// make sure we are uploading to the builder context,
+			// this helps prevent interference (IE stuttering) with the Minecraft context.
+			glProxy.setGlContext(GlProxyContext.LOD_BUILDER);
+			
+			// actually upload the buffers
+			for (int x = 0; x < buildableVbos.length; x++)
+			{
+				for (int z = 0; z < buildableVbos.length; z++)
+				{
+					if (fullRegen || lodDim.doesRegionNeedBufferRegen(x, z))
+					{
+						for (int i = 0; i < buildableBuffers[x][z].length; i++)
+						{
+							ByteBuffer uploadBuffer = buildableBuffers[x][z][i].popNextBuffer().getSecond();
+							vboUpload(buildableVbos[x][z][i], buildableStorageBufferIds[x][z][i], uploadBuffer, x, z, i, true);
+							lodDim.setRegenRegionBufferByArrayIndex(x, z, false);
+						}
+					}
+				}
+			}
+		}
+		catch (Exception e)
+		{
+			// this doesn't appear to be necessary anymore, but just in case.
+			ClientProxy.LOGGER.error(LodBufferBuilder.class.getSimpleName() + " - UploadBuffers failed: " + e.getMessage());
+			e.printStackTrace();
+		}
+		finally
+		{
+			GL11.glFinish();
+			
+			// close the context so it can be re-used later.
+			// I'm guessing we can't just leave it because the executor service
+			// does something that invalidates the OpenGL context.
+			glProxy.setGlContext(GlProxyContext.NONE);
+		}
+	}
+	
+	/** Uploads the uploadBuffer into the VBO and then into GPU memory. */
+	private void vboUpload(VertexBuffer vbo, int storageBufferId, ByteBuffer uploadBuffer,
+			int xVboIndex, int zVboIndex, int iVboIndex, boolean allowBufferExpansion)
+	// x/zVboIndex are just used for the debugging console logging
+	// and should be removed when the logger is removed.
+	{
+		// this shouldn't happen, but just to be safe
+		if (vbo.id != -1 && GlProxy.getInstance().getGlContext() == GlProxyContext.LOD_BUILDER)
+		{
+			// this is how many points will be rendered
+			vbo.vertexCount = (uploadBuffer.capacity() / vbo.format.getVertexSize());
+			
+			
+			GL45.glBindBuffer(GL45.GL_ARRAY_BUFFER, vbo.id);
+			try
+			{
+				// get a pointer to the buffer in system memory
+				ByteBuffer vboBuffer = GL45.glMapBufferRange(GL45.GL_ARRAY_BUFFER, 0, uploadBuffer.capacity(), GL45.GL_MAP_WRITE_BIT | GL45.GL_MAP_UNSYNCHRONIZED_BIT);
+				if (vboBuffer == null)
+				{
+					int previousCapacity = uploadBuffer.capacity();
+					
+					// only expand the buffers if the uploadBuffer actually
+					// has something in it and expansion is allowed
+					if (previousCapacity != 0 && allowBufferExpansion)
+					{
+						// the buffer(s) aren't big enough, expand them.
+						// This does cause lag/stuttering, so it should be avoided!
+						
+						// expand the buffer in system memory
+						GL45.glBufferData(GL45.GL_ARRAY_BUFFER, (int) (uploadBuffer.capacity() * BUFFER_EXPANSION_MULTIPLIER), GL45.GL_DYNAMIC_DRAW);
+						GL45.glBufferSubData(GL45.GL_ARRAY_BUFFER, 0, uploadBuffer);
+						
+						// un-bind the system memory buffer 
+						GL15.glUnmapBuffer(GL15.GL_ARRAY_BUFFER);
+						GL15C.glBindBuffer(GL15.GL_ARRAY_BUFFER, 0);
+						
+						// expand the buffer storage
+						GL45.glDeleteBuffers(storageBufferId);
+						GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, storageBufferId);
+						GL45.glBufferStorage(GL15.GL_ARRAY_BUFFER, (int) (uploadBuffer.capacity() * BUFFER_EXPANSION_MULTIPLIER), 0);
+						GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, 0);
+						
+						
+						// recursively try to upload into the newly created buffer storage
+						// but don't recurse again if that fails
+						// (we don't want an infinitely expanding buffer!)
+						vboUpload(vbo, storageBufferId, uploadBuffer, xVboIndex, zVboIndex, iVboIndex, false);
+						
+						
+						
+						/*if (printExpansionLog)
+						{
+							// NOTE: this will display twice because we are double buffering
+							// (using 1 buffer to generate into and one to draw)
+							ClientProxy.LOGGER.info("vbo (" + xVboIndex + "," + zVboIndex + ") expanded: " + bufferPreviousCapacity[xVboIndex][zVboIndex][iVboIndex] + " -> " + (int)(uploadBuffer.capacity() * BUFFER_EXPANSION_MULTIPLIER));
+							bufferPreviousCapacity[xVboIndex][zVboIndex][iVboIndex] = (int) (uploadBuffer.capacity() * BUFFER_EXPANSION_MULTIPLIER);
+						}*/
+					}
+				}
+				else
+				{
+					// upload the buffer into system memory...
+					vboBuffer.put(uploadBuffer);
+					GL15.glUnmapBuffer(GL15.GL_ARRAY_BUFFER);
+					
+					// ...then upload into GPU memory
+					// (uploading into GPU memory directly can only be done 
+					// through the glCopyBufferSubData/glCopyNamed... methods)
+					GL45.glCopyNamedBufferSubData(vbo.id, storageBufferId, 0, 0, uploadBuffer.capacity());
+				}
+			}
+			catch (Exception e)
+			{
+				ClientProxy.LOGGER.error("vboUpload failed: " + e.getClass().getSimpleName());
+				e.printStackTrace();
+			}
+			finally
+			{
+				GL15C.glBindBuffer(GL15.GL_ARRAY_BUFFER, 0);
+			}
+			
+		}
+	}
+	
+	/** Get the newly created VBOs */
+	public VertexBuffersAndOffset getVertexBuffers()
+	{
+		// don't wait for the lock to open,
+		// since this is called on the main render thread
+		if (bufferLock.tryLock())
+		{
+			VertexBuffer[][][] tmpVbo = drawableVbos;
+			drawableVbos = buildableVbos;
+			buildableVbos = tmpVbo;
+			
+			int[][][] tmpStorage = drawableStorageBufferIds;
+			drawableStorageBufferIds = buildableStorageBufferIds;
+			buildableStorageBufferIds = tmpStorage;
+			
+			// we only want to print the expansion log for
+			// one set of buffers, not both
+			printExpansionLog = !printExpansionLog;
+			
+			drawableCenterChunkPos = buildableCenterChunkPos;
+			
+			// the vbos have been swapped
+			switchVbos = false;
+			bufferLock.unlock();
+		}
+		
+		return new VertexBuffersAndOffset(drawableVbos, drawableStorageBufferIds, drawableCenterChunkPos);
+	}
+	
+	/** A simple container to pass multiple objects back in the getVertexBuffers method. */
+	public static class VertexBuffersAndOffset
+	{
+		public final VertexBuffer[][][] vbos;
+		public final int[][][] storageBufferIds;
+		public final ChunkPos drawableCenterChunkPos;
+		
+		public VertexBuffersAndOffset(VertexBuffer[][][] newVbos, int[][][] newStorageBufferIds, ChunkPos newDrawableCenterChunkPos)
+		{
+			vbos = newVbos;
+			storageBufferIds = newStorageBufferIds;
+			drawableCenterChunkPos = newDrawableCenterChunkPos;
+		}
+	}
+	
+	/**
+	 * If this is true the buildable near and far
+	 * buffers have been generated and are ready to be
+	 * sent to the LodRenderer.
+	 */
+	public boolean newBuffersAvailable()
+	{
+		return switchVbos;
+	}
+}
@@ -0,0 +1,54 @@
+/*
+ *    This file is part of the Distant Horizon mod (formerly the LOD Mod),
+ *    licensed under the GNU GPL v3 License.
+ *
+ *    Copyright (C) 2020  James Seibel
+ *
+ *    This program is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, version 3.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.seibel.lod.builders.bufferBuilding.lodTemplates;
+
+import java.util.Map;
+
+import com.seibel.lod.enums.DebugMode;
+import com.seibel.lod.util.ColorUtil;
+
+import net.minecraft.client.renderer.BufferBuilder;
+import net.minecraft.client.renderer.texture.NativeImage;
+import net.minecraft.util.Direction;
+import net.minecraft.util.math.BlockPos;
+
+/**
+ * This is the abstract class used to create different
+ * BufferBuilders.
+ * @author James Seibel
+ * @version 10-10-2021
+ */
+public abstract class AbstractLodTemplate
+{
+	
+	/** Uploads the given LOD to the buffer. */
+	public abstract void addLodToBuffer(BufferBuilder buffer, BlockPos bufferCenterBlockPos, long data, Map<Direction, long[]> adjData,
+			byte detailLevel, int posX, int posZ, Box box, DebugMode debugging, NativeImage lightMap, boolean[] adjShadeDisabled);
+	
+	/** add the given position and color to the buffer */
+	protected void addPosAndColor(BufferBuilder buffer,
+			double x, double y, double z,
+			int color)
+	{
+		// TODO re-add transparency by replacing the 255 with "ColorUtil.getAlpha(color)"
+		buffer.vertex(x, y, z).color(ColorUtil.getRed(color), ColorUtil.getGreen(color), ColorUtil.getBlue(color), 255).endVertex();
+	}
+	
+}
@@ -0,0 +1,593 @@
+/*
+ *    This file is part of the Distant Horizon mod (formerly the LOD Mod),
+ *    licensed under the GNU GPL v3 License.
+ *
+ *    Copyright (C) 2020  James Seibel
+ *
+ *    This program is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, version 3.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.seibel.lod.builders.bufferBuilding.lodTemplates;
+
+import java.util.Arrays;
+import java.util.HashMap;
+import java.util.Map;
+
+import com.seibel.lod.config.LodConfig;
+import com.seibel.lod.enums.DebugMode;
+import com.seibel.lod.util.ColorUtil;
+import com.seibel.lod.util.DataPointUtil;
+import com.seibel.lod.util.LodUtil;
+import com.seibel.lod.wrappers.MinecraftWrapper;
+
+import net.minecraft.util.Direction;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.util.math.vector.Vector3i;
+
+/**
+ * Similar to Minecraft's AxisAlignedBoundingBox.
+ * @author Leonardo Amato
+ * @version 10-2-2021
+ */
+public class Box
+{
+	
+	public static final int ADJACENT_HEIGHT_INDEX = 0;
+	public static final int ADJACENT_DEPTH_INDEX = 1;
+	
+	public static final int X = 0;
+	public static final int Y = 1;
+	public static final int Z = 2;
+	
+	public static final int MIN = 0;
+	public static final int MAX = 1;
+	
+	public static final int VOID_FACE = 0;
+	
+	/** The six cardinal directions */
+	public static final Direction[] DIRECTIONS = new Direction[] {
+			Direction.UP,
+			Direction.DOWN,
+			Direction.WEST,
+			Direction.EAST,
+			Direction.NORTH,
+			Direction.SOUTH };
+	
+	/** North, South, East, West */
+	public static final Direction[] ADJ_DIRECTIONS = new Direction[] {
+			Direction.EAST,
+			Direction.WEST,
+			Direction.SOUTH,
+			Direction.NORTH };
+	
+	/** All the faces and vertices of a cube. This is used to extract the vertex from the column */
+	public static final Map<Direction, int[][]> DIRECTION_VERTEX_MAP = new HashMap<Direction, int[][]>()
+	{{
+		put(Direction.UP, new int[][] {
+				{ 0, 1, 0 },
+				{ 0, 1, 1 },
+				{ 1, 1, 1 },
+				{ 1, 1, 0 } });
+		put(Direction.DOWN, new int[][] {
+				{ 1, 0, 0 },
+				{ 1, 0, 1 },
+				{ 0, 0, 1 },
+				{ 0, 0, 0 } });
+		put(Direction.EAST, new int[][] {
+				{ 1, 1, 0 },
+				{ 1, 1, 1 },
+				{ 1, 0, 1 },
+				{ 1, 0, 0 } });
+		put(Direction.WEST, new int[][] {
+				{ 0, 0, 0 },
+				{ 0, 0, 1 },
+				{ 0, 1, 1 },
+				{ 0, 1, 0 } });
+		put(Direction.SOUTH, new int[][] {
+				{ 1, 0, 1 },
+				{ 1, 1, 1 },
+				{ 0, 1, 1 },
+				{ 0, 0, 1 } });
+		put(Direction.NORTH, new int[][] {
+				{ 0, 0, 0 },
+				{ 0, 1, 0 },
+				{ 1, 1, 0 },
+				{ 1, 0, 0 } });
+	}};
+	
+	
+	/**
+	 * This indicates which position is invariable in the DIRECTION_VERTEX_MAP.
+	 * Is used to extract the vertex
+	 */
+	public static final Map<Direction, int[]> FACE_DIRECTION = new HashMap<Direction, int[]>()
+	{{
+		put(Direction.UP, new int[] { Y, MAX });
+		put(Direction.DOWN, new int[] { Y, MIN });
+		put(Direction.EAST, new int[] { X, MAX });
+		put(Direction.WEST, new int[] { X, MIN });
+		put(Direction.SOUTH, new int[] { Z, MAX });
+		put(Direction.NORTH, new int[] { Z, MIN });
+	}};
+	
+	
+	/**
+	 * This is a map from Direction to the relative normal vector
+	 * we are using this since I'm not sure if the getNormal create new object at every call
+	 */
+	public static final Map<Direction, Vector3i> DIRECTION_NORMAL_MAP = new HashMap<Direction, Vector3i>()
+	{{
+		put(Direction.UP, Direction.UP.getNormal());
+		put(Direction.DOWN, Direction.DOWN.getNormal());
+		put(Direction.EAST, Direction.EAST.getNormal());
+		put(Direction.WEST, Direction.WEST.getNormal());
+		put(Direction.SOUTH, Direction.SOUTH.getNormal());
+		put(Direction.NORTH, Direction.NORTH.getNormal());
+	}};
+	
+	/** We use this index for all array that are going to */
+	public static final Map<Direction, Integer> DIRECTION_INDEX = new HashMap<Direction, Integer>()
+	{{
+		put(Direction.UP, 0);
+		put(Direction.DOWN, 1);
+		put(Direction.EAST, 2);
+		put(Direction.WEST, 3);
+		put(Direction.SOUTH, 4);
+		put(Direction.NORTH, 5);
+	}};
+	
+	public static final Map<Direction, Integer> ADJ_DIRECTION_INDEX = new HashMap<Direction, Integer>()
+	{{
+		put(Direction.EAST, 0);
+		put(Direction.WEST, 1);
+		put(Direction.SOUTH, 2);
+		put(Direction.NORTH, 3);
+	}};
+	/** holds the box's x, y, z offset */
+	public final int[] boxOffset;
+	/** holds the box's x, y, z width */
+	public final int[] boxWidth;
+	
+	/** Holds each direction's color */
+	public final int[] colorMap;
+	/** The original color (before shading) of this box */
+	public int color;
+	/**
+	 *
+	 */
+	public final Map<Direction, int[]> adjHeight;
+	public final Map<Direction, int[]> adjDepth;
+	public final Map<Direction, byte[]> skyLights;
+	public byte blockLight;
+	
+	/** Holds if the given direction should be culled or not */
+	public final boolean[] culling;
+	
+	
+	/** creates an empty box */
+	public Box()
+	{
+		boxOffset = new int[3];
+		boxWidth = new int[3];
+		
+		colorMap = new int[6];
+		skyLights = new HashMap<Direction, byte[]>()
+		{{
+			put(Direction.UP, new byte[1]);
+			put(Direction.DOWN, new byte[1]);
+			put(Direction.EAST, new byte[LodUtil.MAX_NUMBER_OF_VERTICAL_LODS]);
+			put(Direction.WEST, new byte[LodUtil.MAX_NUMBER_OF_VERTICAL_LODS]);
+			put(Direction.SOUTH, new byte[LodUtil.MAX_NUMBER_OF_VERTICAL_LODS]);
+			put(Direction.NORTH, new byte[LodUtil.MAX_NUMBER_OF_VERTICAL_LODS]);
+		}};
+		adjHeight = new HashMap<Direction, int[]>()
+		{{
+			put(Direction.EAST, new int[LodUtil.MAX_NUMBER_OF_VERTICAL_LODS]);
+			put(Direction.WEST, new int[LodUtil.MAX_NUMBER_OF_VERTICAL_LODS]);
+			put(Direction.SOUTH, new int[LodUtil.MAX_NUMBER_OF_VERTICAL_LODS]);
+			put(Direction.NORTH, new int[LodUtil.MAX_NUMBER_OF_VERTICAL_LODS]);
+		}};
+		adjDepth = new HashMap<Direction, int[]>()
+		{{
+			put(Direction.EAST, new int[LodUtil.MAX_NUMBER_OF_VERTICAL_LODS]);
+			put(Direction.WEST, new int[LodUtil.MAX_NUMBER_OF_VERTICAL_LODS]);
+			put(Direction.SOUTH, new int[LodUtil.MAX_NUMBER_OF_VERTICAL_LODS]);
+			put(Direction.NORTH, new int[LodUtil.MAX_NUMBER_OF_VERTICAL_LODS]);
+		}};
+		
+		culling = new boolean[6];
+	}
+	
+	/** Set the light of the columns */
+	public void setLights(int skyLight, int blockLight)
+	{
+		this.blockLight = (byte) blockLight;
+		skyLights.get(Direction.UP)[0] = (byte) skyLight;
+	}
+	
+	/**
+	 * Set the color of the columns
+	 * @param color color to add
+	 * @param adjShadeDisabled this array indicates which face does not need shading
+	 */
+	public void setColor(int color, boolean[] adjShadeDisabled)
+	{
+		this.color = color;
+		for (Direction direction : DIRECTIONS)
+		{
+			if (!adjShadeDisabled[DIRECTION_INDEX.get(direction)])
+				colorMap[DIRECTION_INDEX.get(direction)] = ColorUtil.applyShade(color, MinecraftWrapper.INSTANCE.getClientWorld().getShade(direction, true));
+			else
+				colorMap[DIRECTION_INDEX.get(direction)] = color;
+		}
+	}
+	
+	/**
+	 * @param direction of the face of which we want to get the color
+	 * @return color of the face
+	 */
+	public int getColor(Direction direction)
+	{
+		if (LodConfig.CLIENT.advancedModOptions.debugging.debugMode.get() != DebugMode.SHOW_DETAIL)
+			return colorMap[DIRECTION_INDEX.get(direction)];
+		else
+			return ColorUtil.applyShade(color, MinecraftWrapper.INSTANCE.getClientWorld().getShade(direction, true));
+	}
+	
+	/**
+	 */
+	public byte getSkyLight(Direction direction, int verticalIndex)
+	{
+		if(direction == Direction.UP || direction == Direction.DOWN)
+			return skyLights.get(direction)[0];
+		else
+			return skyLights.get(direction)[verticalIndex];
+	}
+	
+	/**
+	 */
+	public int getBlockLight()
+	{
+		return blockLight;
+	}
+	/** clears this box, resetting everything to default values */
+	public void reset()
+	{
+		Arrays.fill(boxWidth, 0);
+		Arrays.fill(boxOffset, 0);
+		Arrays.fill(colorMap, 0);
+		blockLight = 0;
+		for (Direction direction : ADJ_DIRECTIONS)
+		{
+			for (int i = 0; i < adjHeight.get(direction).length; i++)
+			{
+				adjHeight.get(direction)[i] = VOID_FACE;
+				adjDepth.get(direction)[i] = VOID_FACE;
+				skyLights.get(direction)[i] = 0;
+			}
+		}
+	}
+	
+	/** determine which faces should be culled */
+	public void setUpCulling(int cullingDistance, BlockPos playerPos)
+	{
+		for (Direction direction : DIRECTIONS)
+		{
+			if (direction == Direction.DOWN || direction == Direction.WEST || direction == Direction.NORTH)
+				culling[DIRECTION_INDEX.get(direction)] = playerPos.get(direction.getAxis()) > getFacePos(direction) + cullingDistance;
+			
+			else if (direction == Direction.UP || direction == Direction.EAST || direction == Direction.SOUTH)
+				culling[DIRECTION_INDEX.get(direction)] = playerPos.get(direction.getAxis()) < getFacePos(direction) - cullingDistance;
+			
+			culling[DIRECTION_INDEX.get(direction)] = false;
+		}
+	}
+	
+	/**
+	 * @param direction direction that we want to check if it's culled
+	 * @return true if and only if the face of the direction is culled
+	 */
+	public boolean isCulled(Direction direction)
+	{
+		return culling[DIRECTION_INDEX.get(direction)];
+	}
+	
+	
+	/**
+	 * This method create all the shared face culling based on the adjacent data
+	 * @param adjData data adjacent to the column we are going to render
+	 */
+	public void setAdjData(Map<Direction, long[]> adjData)
+	{
+		int height;
+		int depth;
+		int minY = getMinY();
+		int maxY = getMaxY();
+		long singleAdjDataPoint;
+		
+		/* TODO implement attached vertical face culling
+		//Up direction case
+		if(DataPointUtil.doesItExist(adjData.get(Direction.UP)))
+		{
+			height = DataPointUtil.getHeight(singleAdjDataPoint);
+			depth = DataPointUtil.getDepth(singleAdjDataPoint);
+		}*/
+		//Down direction case
+		singleAdjDataPoint = adjData.get(Direction.DOWN)[0];
+		if(DataPointUtil.doesItExist(singleAdjDataPoint))
+			skyLights.get(Direction.DOWN)[0] = (byte) DataPointUtil.getLightSkyAlt(singleAdjDataPoint);
+		else
+			skyLights.get(Direction.DOWN)[0] = skyLights.get(Direction.UP)[0];
+		//other sided
+		//TODO clean some similar cases
+		for (Direction direction : ADJ_DIRECTIONS)
+		{
+			if (isCulled(direction))
+				continue;
+			
+			long[] dataPoint = adjData.get(direction);
+			if (dataPoint == null || DataPointUtil.isVoid(dataPoint[0]))
+			{
+				adjHeight.get(direction)[0] = maxY;
+				adjDepth.get(direction)[0] = minY;
+				adjHeight.get(direction)[1] = VOID_FACE;
+				adjDepth.get(direction)[1] = VOID_FACE;
+				skyLights.get(direction)[0] = 15; //in void set full sky light
+				continue;
+			}
+			
+			int i;
+			int faceToDraw = 0;
+			boolean firstFace = true;
+			boolean toFinish = false;
+			int toFinishIndex = 0;
+			boolean allAbove = true;
+			for (i = 0; i < dataPoint.length; i++)
+			{
+				singleAdjDataPoint = dataPoint[i];
+				
+				if (DataPointUtil.isVoid(singleAdjDataPoint) || !DataPointUtil.doesItExist(singleAdjDataPoint))
+					break;
+				
+				height = DataPointUtil.getHeight(singleAdjDataPoint);
+				depth = DataPointUtil.getDepth(singleAdjDataPoint);
+				
+				if (depth <= maxY)
+				{
+					allAbove = false;
+					if (height < minY)
+					{
+						// the adj data is lower than the current data
+						
+						if (firstFace)
+						{
+							adjHeight.get(direction)[0] = getMaxY();
+							adjDepth.get(direction)[0] = getMinY();
+							skyLights.get(direction)[0] = skyLights.get(Direction.UP)[0];
+						}
+						else
+						{
+							adjDepth.get(direction)[faceToDraw] = getMinY();
+							skyLights.get(direction)[faceToDraw] = (byte) DataPointUtil.getLightSkyAlt(singleAdjDataPoint);
+						}
+						faceToDraw++;
+						toFinish = false;
+						
+						// break since all the other data will be lower
+						break;
+					}
+					else if (depth <= minY && height >= maxY)
+					{
+						// the adj data is inside the current data
+						// don't draw the face
+						adjHeight.get(direction)[0] = VOID_FACE;
+						adjDepth.get(direction)[0] = VOID_FACE;
+						break;
+					}
+					else if (depth <= minY)//&& height < maxY
+					{
+						// the adj data intersects the lower part of the current data
+						// if this is the only face, use the maxY and break,
+						// if there was another face we finish the last one and break
+						if (firstFace)
+						{
+							adjHeight.get(direction)[0] = getMaxY();
+							adjDepth.get(direction)[0] = height;
+							skyLights.get(direction)[0] = skyLights.get(Direction.UP)[0];
+						}
+						else
+						{
+							adjDepth.get(direction)[faceToDraw] = height;
+							skyLights.get(direction)[faceToDraw] = (byte) DataPointUtil.getLightSkyAlt(singleAdjDataPoint);
+						}
+						toFinish = false;
+						faceToDraw++;
+						break;
+					}
+					else if (height >= maxY)//depth > minY &&
+					{
+						// the adj data intersects the higher part of the current data
+						// we start the creation of a new face
+						adjHeight.get(direction)[faceToDraw] = depth;
+						//skyLights.get(direction)[faceToDraw] = (byte) DataPointUtil.getLightSkyAlt(singleAdjDataPoint);
+						firstFace = false;
+						toFinish = true;
+						toFinishIndex = i + 1;
+					}
+					else
+					{
+						// if (depth > minY && height < maxY)
+						
+						// the adj data is contained in the current data
+						if (firstFace)
+						{
+							adjHeight.get(direction)[0] = getMaxY();
+						}
+						
+						adjDepth.get(direction)[faceToDraw] = height;
+						skyLights.get(direction)[faceToDraw] = (byte) DataPointUtil.getLightSkyAlt(singleAdjDataPoint);
+						faceToDraw++;
+						adjHeight.get(direction)[faceToDraw] = depth;
+						firstFace = false;
+						toFinish = true;
+						toFinishIndex = i + 1;
+					}
+				}
+			}
+			
+			if (allAbove)
+			{
+				adjHeight.get(direction)[0] = getMaxY();
+				adjDepth.get(direction)[0] = getMinY();
+				skyLights.get(direction)[0] = skyLights.get(Direction.UP)[0];
+				faceToDraw++;
+			}
+			else if (toFinish)
+			{
+				adjDepth.get(direction)[faceToDraw] = minY;
+				if(toFinishIndex < dataPoint.length)
+				{
+					singleAdjDataPoint = dataPoint[toFinishIndex];
+					if (DataPointUtil.doesItExist(singleAdjDataPoint))
+						skyLights.get(direction)[faceToDraw] = (byte) DataPointUtil.getLightSkyAlt(singleAdjDataPoint);
+					else
+						skyLights.get(direction)[faceToDraw] = skyLights.get(Direction.UP)[0];
+				}
+				faceToDraw++;
+			}
+			
+			adjHeight.get(direction)[faceToDraw] = VOID_FACE;
+			adjDepth.get(direction)[faceToDraw] = VOID_FACE;
+		}
+	}
+	
+	/** We use this method to set the various width of the column */
+	public void setWidth(int xWidth, int yWidth, int zWidth)
+	{
+		boxWidth[X] = xWidth;
+		boxWidth[Y] = yWidth;
+		boxWidth[Z] = zWidth;
+	}
+	
+	/** We use this method to set the various offset of the column */
+	public void setOffset(int xOffset, int yOffset, int zOffset)
+	{
+		boxOffset[X] = xOffset;
+		boxOffset[Y] = yOffset;
+		boxOffset[Z] = zOffset;
+	}
+	
+	/**
+	 * This method return the position of a face in the axis of the face
+	 * This is useful for the face culling
+	 * @param direction that we want to check
+	 * @return position in the axis of the face
+	 */
+	public int getFacePos(Direction direction)
+	{
+		return boxOffset[FACE_DIRECTION.get(direction)[0]] + boxWidth[FACE_DIRECTION.get(direction)[0]] * FACE_DIRECTION.get(direction)[1];
+	}
+	
+	/**
+	 * returns true if the given direction should be rendered.
+	 */
+	public boolean shouldRenderFace(Direction direction, int adjIndex)
+	{
+		if (direction == Direction.UP || direction == Direction.DOWN)
+			return adjIndex == 0;
+		return !(adjHeight.get(direction)[adjIndex] == VOID_FACE && adjDepth.get(direction)[adjIndex] == VOID_FACE);
+	}
+	
+	
+	/**
+	 * @param direction direction of the face we want to render
+	 * @param vertexIndex index of the vertex of the face (0-1-2-3)
+	 * @return position x of the relative vertex
+	 */
+	public int getX(Direction direction, int vertexIndex)
+	{
+		return boxOffset[X] + boxWidth[X] * DIRECTION_VERTEX_MAP.get(direction)[vertexIndex][X];
+	}
+	
+	/**
+	 * @param direction direction of the face we want to render
+	 * @param vertexIndex index of the vertex of the face (0-1-2-3)
+	 * @return position y of the relative vertex
+	 */
+	public int getY(Direction direction, int vertexIndex)
+	{
+		return boxOffset[Y] + boxWidth[Y] * DIRECTION_VERTEX_MAP.get(direction)[vertexIndex][Y];
+	}
+	
+	/**
+	 * @param direction direction of the face we want to render
+	 * @param vertexIndex index of the vertex of the face (0-1-2-3)
+	 * @param adjIndex, index of the n-th culled face of this direction
+	 * @return position x of the relative vertex
+	 */
+	public int getY(Direction direction, int vertexIndex, int adjIndex)
+	{
+		if (direction == Direction.DOWN || direction == Direction.UP)
+			return boxOffset[Y] + boxWidth[Y] * DIRECTION_VERTEX_MAP.get(direction)[vertexIndex][Y];
+		else
+		{
+			// this could probably be cleaned up more,
+			// but it still works
+			if (1 - DIRECTION_VERTEX_MAP.get(direction)[vertexIndex][Y] == ADJACENT_HEIGHT_INDEX)
+				return adjHeight.get(direction)[adjIndex];
+			else
+				return adjDepth.get(direction)[adjIndex];
+		}
+	}
+	
+	/**
+	 * @param direction direction of the face we want to render
+	 * @param vertexIndex index of the vertex of the face (0-1-2-3)
+	 * @return position z of the relative vertex
+	 */
+	public int getZ(Direction direction, int vertexIndex)
+	{
+		return boxOffset[Z] + boxWidth[Z] * DIRECTION_VERTEX_MAP.get(direction)[vertexIndex][Z];
+	}
+	
+	public int getMinX()
+	{
+		return boxOffset[X];
+	}
+	
+	public int getMaxX()
+	{
+		return boxOffset[X] + boxWidth[X];
+	}
+	
+	public int getMinY()
+	{
+		return boxOffset[Y];
+	}
+	
+	public int getMaxY()
+	{
+		return boxOffset[Y] + boxWidth[Y];
+	}
+	
+	public int getMinZ()
+	{
+		return boxOffset[Z];
+	}
+	
+	public int getMaxZ()
+	{
+		return boxOffset[Z] + boxWidth[Z];
+	}
+	
+}
@@ -0,0 +1,143 @@
+/*
+ *    This file is part of the Distant Horizon mod (formerly the LOD Mod),
+ *    licensed under the GNU GPL v3 License.
+ *
+ *    Copyright (C) 2020  James Seibel
+ *
+ *    This program is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, version 3.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.seibel.lod.builders.bufferBuilding.lodTemplates;
+
+import java.util.Map;
+
+import com.seibel.lod.enums.DebugMode;
+import com.seibel.lod.util.ColorUtil;
+import com.seibel.lod.util.DataPointUtil;
+import com.seibel.lod.util.LodUtil;
+import com.seibel.lod.wrappers.MinecraftWrapper;
+
+import net.minecraft.client.renderer.BufferBuilder;
+import net.minecraft.client.renderer.texture.NativeImage;
+import net.minecraft.util.Direction;
+import net.minecraft.util.math.BlockPos;
+
+/**
+ * Builds LODs as rectangular prisms.
+ * @author James Seibel
+ * @version 10-10-2021
+ */
+public class CubicLodTemplate extends AbstractLodTemplate
+{
+	
+	public CubicLodTemplate()
+	{
+	
+	}
+	
+	@Override
+	public void addLodToBuffer(BufferBuilder buffer, BlockPos bufferCenterBlockPos, long data, Map<Direction, long[]> adjData,
+			byte detailLevel, int posX, int posZ, Box box, DebugMode debugging, NativeImage lightMap, boolean[] adjShadeDisabled)
+	{
+		if (box == null)
+			return;
+		
+		// equivalent to 2^detailLevel
+		int blockWidth = 1 << detailLevel;
+		
+		int color;
+		if (debugging != DebugMode.OFF)
+			color = LodUtil.DEBUG_DETAIL_LEVEL_COLORS[detailLevel].getRGB();
+		else
+			color = DataPointUtil.getColor(data);
+		
+		
+		generateBoundingBox(
+				box,
+				DataPointUtil.getHeight(data),
+				DataPointUtil.getDepth(data),
+				blockWidth,
+				posX * blockWidth, 0, posZ * blockWidth, // x, y, z offset
+				bufferCenterBlockPos,
+				adjData,
+				color,
+				DataPointUtil.getLightSkyAlt(data),
+				DataPointUtil.getLightBlock(data),
+				adjShadeDisabled);
+		
+		addBoundingBoxToBuffer(buffer, box);
+	}
+	
+	private void generateBoundingBox(Box box,
+			int height, int depth, int width,
+			double xOffset, double yOffset, double zOffset,
+			BlockPos bufferCenterBlockPos,
+			Map<Direction, long[]> adjData,
+			int color,
+			int skyLight,
+			int blockLight,
+			boolean[] adjShadeDisabled)
+	{
+		// don't add an LOD if it is empty
+		if (height == -1 && depth == -1)
+			return;
+		
+		if (depth == height)
+			// if the top and bottom points are at the same height
+			// render this LOD as 1 block thick
+			height++;
+		
+		// offset the AABB by its x/z position in the world since
+		// it uses doubles to specify its location, unlike the model view matrix
+		// which only uses floats
+		double x = -bufferCenterBlockPos.getX();
+		double z = -bufferCenterBlockPos.getZ();
+		box.reset();
+		box.setColor(color, adjShadeDisabled);
+		box.setLights(skyLight, blockLight);
+		box.setWidth(width, height - depth, width);
+		box.setOffset((int) (xOffset + x), (int) (depth + yOffset), (int) (zOffset + z));
+		box.setUpCulling(32, bufferCenterBlockPos);
+		box.setAdjData(adjData);
+	}
+	
+	private void addBoundingBoxToBuffer(BufferBuilder buffer, Box box)
+	{
+		int color;
+		int skyLight;
+		int blockLight;
+		for (Direction direction : Box.DIRECTIONS)
+		{
+			if(box.isCulled(direction))
+				continue;
+			int verticalFaceIndex = 0;
+			while (box.shouldRenderFace(direction, verticalFaceIndex))
+			{
+				for (int vertexIndex = 0; vertexIndex < 4; vertexIndex++)
+				{
+					color = box.getColor(direction);
+					skyLight = box.getSkyLight(direction, verticalFaceIndex);
+					blockLight = box.getBlockLight();
+					color = ColorUtil.applyLightValue(color, skyLight, blockLight, MinecraftWrapper.INSTANCE.getCurrentLightMap());
+					addPosAndColor(buffer,
+							box.getX(direction, vertexIndex),
+							box.getY(direction, vertexIndex, verticalFaceIndex),
+							box.getZ(direction, vertexIndex),
+							color);
+				}
+				verticalFaceIndex++;
+			}
+		}
+	}
+	
+}
@@ -0,0 +1,49 @@
+/*
+ *    This file is part of the Distant Horizon mod (formerly the LOD Mod),
+ *    licensed under the GNU GPL v3 License.
+ *
+ *    Copyright (C) 2020  James Seibel
+ *
+ *    This program is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, version 3.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.seibel.lod.builders.bufferBuilding.lodTemplates;
+
+import java.util.Map;
+
+import com.seibel.lod.enums.DebugMode;
+import com.seibel.lod.proxy.ClientProxy;
+
+import net.minecraft.client.renderer.BufferBuilder;
+import net.minecraft.client.renderer.texture.NativeImage;
+import net.minecraft.util.Direction;
+import net.minecraft.util.math.BlockPos;
+
+/**
+ * TODO DynamicLodTemplate
+ * Chunks smoothly transition between
+ * each other, unless a neighboring chunk
+ * is at a significantly different height.
+ * @author James Seibel
+ * @version 06-16-2021
+ */
+public class DynamicLodTemplate extends AbstractLodTemplate
+{
+	@Override
+	public void addLodToBuffer(BufferBuilder buffer, BlockPos bufferCenterBlockPos, long data, Map<Direction, long[]> adjData,
+			byte detailLevel, int posX, int posZ, Box box, DebugMode debugging, NativeImage lightMap, boolean[] adjShadeDisabled)
+	{
+		ClientProxy.LOGGER.error(DynamicLodTemplate.class.getSimpleName() + " is not implemented!");
+	}
+	
+}
@@ -0,0 +1,47 @@
+/*
+ *    This file is part of the Distant Horizon mod (formerly the LOD Mod),
+ *    licensed under the GNU GPL v3 License.
+ *
+ *    Copyright (C) 2020  James Seibel
+ *
+ *    This program is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, version 3.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.seibel.lod.builders.bufferBuilding.lodTemplates;
+
+import java.util.Map;
+
+import com.seibel.lod.enums.DebugMode;
+import com.seibel.lod.proxy.ClientProxy;
+
+import net.minecraft.client.renderer.BufferBuilder;
+import net.minecraft.client.renderer.texture.NativeImage;
+import net.minecraft.util.Direction;
+import net.minecraft.util.math.BlockPos;
+
+/**
+ * TODO #21 TriangularLodTemplate
+ * Builds each LOD chunk as a singular rectangular prism.
+ * @author James Seibel
+ * @version 06-16-2021
+ */
+public class TriangularLodTemplate extends AbstractLodTemplate
+{
+	@Override
+	public void addLodToBuffer(BufferBuilder buffer, BlockPos bufferCenterBlockPos, long data, Map<Direction, long[]> adjData,
+			byte detailLevel, int posX, int posZ, Box box, DebugMode debugging, NativeImage lightMap, boolean[] adjShadeDisabled)
+	{
+		ClientProxy.LOGGER.error(DynamicLodTemplate.class.getSimpleName() + " is not implemented!");
+	}
+	
+}
@@ -0,0 +1,944 @@
+/*
+ *    This file is part of the Distant Horizon mod (formerly the LOD Mod),
+ *    licensed under the GNU GPL v3 License.
+ *
+ *    Copyright (C) 2020  James Seibel
+ *
+ *    This program is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, version 3.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.seibel.lod.builders.lodBuilding;
+
+import java.awt.Color;
+import java.util.List;
+import java.util.Random;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.ConcurrentMap;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+
+import com.seibel.lod.config.LodConfig;
+import com.seibel.lod.enums.DistanceGenerationMode;
+import com.seibel.lod.enums.HorizontalResolution;
+import com.seibel.lod.enums.VerticalQuality;
+import com.seibel.lod.objects.LodDimension;
+import com.seibel.lod.objects.LodRegion;
+import com.seibel.lod.objects.LodWorld;
+import com.seibel.lod.util.ColorUtil;
+import com.seibel.lod.util.DataPointUtil;
+import com.seibel.lod.util.DetailDistanceUtil;
+import com.seibel.lod.util.LevelPosUtil;
+import com.seibel.lod.util.LodThreadFactory;
+import com.seibel.lod.util.LodUtil;
+import com.seibel.lod.util.ThreadMapUtil;
+import com.seibel.lod.wrappers.MinecraftWrapper;
+
+import net.minecraft.block.AbstractPlantBlock;
+import net.minecraft.block.AbstractTopPlantBlock;
+import net.minecraft.block.Block;
+import net.minecraft.block.BlockState;
+import net.minecraft.block.Blocks;
+import net.minecraft.block.BushBlock;
+import net.minecraft.block.FlowerBlock;
+import net.minecraft.block.GrassBlock;
+import net.minecraft.block.IGrowable;
+import net.minecraft.block.ILiquidContainer;
+import net.minecraft.block.IWaterLoggable;
+import net.minecraft.block.LeavesBlock;
+import net.minecraft.block.SixWayBlock;
+import net.minecraft.block.TallGrassBlock;
+import net.minecraft.block.material.MaterialColor;
+import net.minecraft.client.renderer.model.BakedQuad;
+import net.minecraft.client.renderer.texture.TextureAtlasSprite;
+import net.minecraft.client.world.ClientWorld;
+import net.minecraft.state.properties.BlockStateProperties;
+import net.minecraft.util.Direction;
+import net.minecraft.util.math.AxisAlignedBB;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.util.math.ChunkPos;
+import net.minecraft.util.math.shapes.VoxelShape;
+import net.minecraft.world.DimensionType;
+import net.minecraft.world.IWorld;
+import net.minecraft.world.LightType;
+import net.minecraft.world.World;
+import net.minecraft.world.biome.Biome;
+import net.minecraft.world.biome.BiomeColors;
+import net.minecraft.world.chunk.ChunkSection;
+import net.minecraft.world.chunk.IChunk;
+import net.minecraft.world.server.ServerWorld;
+import net.minecraftforge.client.model.data.ModelDataMap;
+
+/**
+ * This object is in charge of creating Lod related objects.
+ * 
+ * @author Cola
+ * @author Leonardo Amato
+ * @author James Seibel
+ * @version 10-22-2021
+ */
+public class LodBuilder
+{
+	private static final MinecraftWrapper mc = MinecraftWrapper.INSTANCE;
+	
+	private final ExecutorService lodGenThreadPool = Executors.newSingleThreadExecutor(new LodThreadFactory(this.getClass().getSimpleName()));
+	
+	public static final Direction[] directions = new Direction[] { Direction.UP, Direction.EAST, Direction.SOUTH, Direction.WEST, Direction.NORTH, Direction.DOWN };
+	public static final int CHUNK_DATA_WIDTH = LodUtil.CHUNK_WIDTH;
+	public static final int CHUNK_SECTION_HEIGHT = CHUNK_DATA_WIDTH;
+	public static final ConcurrentMap<Block, Integer> colorMap = new ConcurrentHashMap<>();
+	public static final ConcurrentMap<Block, Integer> tintColor = new ConcurrentHashMap<>();
+	public static final ConcurrentMap<Block, Boolean> toTint = new ConcurrentHashMap<>();
+	public static final ConcurrentMap<Block, VoxelShape> shapeMap = new ConcurrentHashMap<>();
+	
+	public static final ConcurrentMap<Block, Boolean> notFullBlock = new ConcurrentHashMap<>();
+	public static final ConcurrentMap<Block, Boolean> smallBlock = new ConcurrentHashMap<>();
+	
+	
+	public static final ModelDataMap dataMap = new ModelDataMap.Builder().build();
+	
+	/** If no blocks are found in the area in determineBottomPointForArea return this */
+	public static final short DEFAULT_DEPTH = 0;
+	/** If no blocks are found in the area in determineHeightPointForArea return this */
+	public static final short DEFAULT_HEIGHT = 0;
+	/** Minecraft's max light value */
+	public static final short DEFAULT_MAX_LIGHT = 15;
+	
+	
+	/**
+	 * How wide LodDimensions should be in regions <br>
+	 * Is automatically set before the first frame in ClientProxy.
+	 */
+	public int defaultDimensionWidthInRegions = 0;
+	
+	//public static final boolean useExperimentalLighting = true;
+	
+	
+	
+	
+	public LodBuilder()
+	{
+	
+	}
+	
+	public void generateLodNodeAsync(IChunk chunk, LodWorld lodWorld, IWorld world)
+	{
+		generateLodNodeAsync(chunk, lodWorld, world, DistanceGenerationMode.SERVER);
+	}
+	
+	public void generateLodNodeAsync(IChunk chunk, LodWorld lodWorld, IWorld world, DistanceGenerationMode generationMode)
+	{
+		if (lodWorld == null || lodWorld.getIsWorldNotLoaded())
+			return;
+		
+		// don't try to create an LOD object
+		// if for some reason we aren't
+		// given a valid chunk object
+		if (chunk == null)
+			return;
+		
+		Thread thread = new Thread(() ->
+		{
+			try
+			{
+				// we need a loaded client world in order to
+				// get the textures for blocks
+				if (mc.getClientWorld() == null)
+					return;
+				
+				// don't try to generate LODs if the user isn't in the world anymore
+				// (this happens a lot when the user leaves a world/server)
+				if (mc.getSinglePlayerServer() == null && mc.getCurrentServer() == null)
+					return;
+				
+				DimensionType dim = world.dimensionType();
+				
+				// make sure the dimension exists
+				LodDimension lodDim;
+				if (lodWorld.getLodDimension(dim) == null)
+				{
+					lodDim = new LodDimension(dim, lodWorld, defaultDimensionWidthInRegions);
+					lodWorld.addLodDimension(lodDim);
+				}
+				else
+				{
+					lodDim = lodWorld.getLodDimension(dim);
+				}
+				generateLodNodeFromChunk(lodDim, chunk, new LodBuilderConfig(generationMode));
+			}
+			catch (IllegalArgumentException | NullPointerException e)
+			{
+				e.printStackTrace();
+				// if the world changes while LODs are being generated
+				// they will throw errors as they try to access things that no longer
+				// exist.
+			}
+		});
+		lodGenThreadPool.execute(thread);
+	}
+	
+	/**
+	 * Creates a LodNode for a chunk in the given world.
+	 * @throws IllegalArgumentException thrown if either the chunk or world is null.
+	 */
+	public void generateLodNodeFromChunk(LodDimension lodDim, IChunk chunk) throws IllegalArgumentException
+	{
+		generateLodNodeFromChunk(lodDim, chunk, new LodBuilderConfig());
+	}
+	
+	/**
+	 * Creates a LodNode for a chunk in the given world.
+	 * @throws IllegalArgumentException thrown if either the chunk or world is null.
+	 */
+	public void generateLodNodeFromChunk(LodDimension lodDim, IChunk chunk, LodBuilderConfig config)
+			throws IllegalArgumentException
+	{
+		if (chunk == null)
+			throw new IllegalArgumentException("generateLodFromChunk given a null chunk");
+		
+		int startX;
+		int startZ;
+		int endX;
+		int endZ;
+		
+		
+		LodRegion region = lodDim.getRegion(chunk.getPos().getRegionX(), chunk.getPos().getRegionZ());
+		if (region == null)
+			return;
+		
+		// determine how many LODs to generate horizontally
+		HorizontalResolution detail;
+		byte minDetailLevel = region.getMinDetailLevel();
+		detail = DetailDistanceUtil.getLodGenDetail(minDetailLevel);
+		
+		
+		// determine how many LODs to generate vertically
+		VerticalQuality verticalQuality = LodConfig.CLIENT.graphics.qualityOption.verticalQuality.get();
+		byte detailLevel = detail.detailLevel;
+		
+		
+		// generate the LODs
+		int posX;
+		int posZ;
+		for (int i = 0; i < detail.dataPointLengthCount * detail.dataPointLengthCount; i++)
+		{
+			startX = detail.startX[i];
+			startZ = detail.startZ[i];
+			endX = detail.endX[i];
+			endZ = detail.endZ[i];
+			
+			posX = LevelPosUtil.convert((byte) 0, chunk.getPos().x * 16 + startX, detail.detailLevel);
+			posZ = LevelPosUtil.convert((byte) 0, chunk.getPos().z * 16 + startZ, detail.detailLevel);
+			
+			
+			long[] data;
+			long[] dataToMergeVertical = createVerticalDataToMerge(detail, chunk, config, startX, startZ, endX, endZ);
+			data = DataPointUtil.mergeMultiData(dataToMergeVertical, DataPointUtil.worldHeight, DetailDistanceUtil.getMaxVerticalData(detailLevel));
+			
+			
+			//lodDim.clear(detailLevel, posX, posZ);
+			if (data != null && data.length != 0)
+				lodDim.addVerticalData(detailLevel,	posX, posZ,	data,false);
+		}
+		lodDim.updateData(LodUtil.CHUNK_DETAIL_LEVEL, chunk.getPos().x, chunk.getPos().z);
+	}
+	
+	/** creates a vertical DataPoint */
+	private long[] createVerticalDataToMerge(HorizontalResolution detail, IChunk chunk, LodBuilderConfig config, int startX, int startZ, int endX, int endZ)
+	{
+		// equivalent to 2^detailLevel
+		int size = 1 << detail.detailLevel;
+		
+		long[] dataToMerge = ThreadMapUtil.getBuilderVerticalArray(detail.detailLevel);
+		
+		int verticalData = DataPointUtil.worldHeight;
+		
+		ChunkPos chunkPos = chunk.getPos();
+		int height;
+		int depth;
+		int color;
+		int light;
+		int lightSky;
+		int lightBlock;
+		int generation = config.distanceGenerationMode.complexity;
+		
+		int xRel;
+		int zRel;
+		int xAbs;
+		int yAbs;
+		int zAbs;
+		boolean hasCeiling = mc.getClientWorld().dimensionType().hasCeiling();
+		boolean hasSkyLight = mc.getClientWorld().dimensionType().hasSkyLight();
+		boolean isDefault;
+		BlockPos.Mutable blockPos = new BlockPos.Mutable(0, 0, 0);
+		int index;
+		
+		for (index = 0; index < size * size; index++)
+		{
+			xRel = Math.floorMod(index, size) + startX;
+			zRel = Math.floorDiv(index, size) + startZ;
+			xAbs = chunkPos.getMinBlockX() + xRel;
+			zAbs = chunkPos.getMinBlockZ() + zRel;
+			
+			//Calculate the height of the lod
+			yAbs = DataPointUtil.worldHeight + 2;
+			int count = 0;
+			boolean topBlock = true;
+			while (yAbs > 0)
+			{
+				height = determineHeightPointFrom(chunk, config, xRel, zRel, yAbs, blockPos);
+				
+				// If the lod is at the default height, it must be void data
+				if (height == DEFAULT_HEIGHT)
+				{
+					if (topBlock)
+						dataToMerge[index * verticalData] = DataPointUtil.createVoidDataPoint(generation);
+					break;
+				}
+				
+				yAbs = height - 1;
+				// We search light on above air block
+				depth = determineBottomPointFrom(chunk, config, xRel, zRel, yAbs, blockPos);
+				if (hasCeiling && topBlock)
+				{
+					yAbs = depth;
+					blockPos.set(xAbs, yAbs, zAbs);
+					light = getLightValue(chunk, blockPos, hasCeiling, hasSkyLight, topBlock);
+					color = generateLodColor(chunk, config, xRel, yAbs, zRel, blockPos);
+					blockPos.set(xAbs, yAbs - 1, zAbs);
+				}
+				else
+				{
+					blockPos.set(xAbs, yAbs, zAbs);
+					light = getLightValue(chunk, blockPos, hasCeiling, hasSkyLight, topBlock);
+					color = generateLodColor(chunk, config, xRel, yAbs, zRel, blockPos);
+					blockPos.set(xAbs, yAbs + 1, zAbs);
+				}
+				lightBlock = light & 0b1111;
+				lightSky = (light >> 4) & 0b1111;
+				isDefault = ((light >> 8)) == 1;
+				
+				dataToMerge[index * verticalData + count] = DataPointUtil.createDataPoint(height, depth, color, lightSky, lightBlock, generation, isDefault);
+				topBlock = false;
+				yAbs = depth - 1;
+				count++;
+			}
+		}
+		return dataToMerge;
+	}
+	
+	/**
+	 * Find the lowest valid point from the bottom.
+	 * Used when creating a vertical LOD.
+	 */
+	private short determineBottomPointFrom(IChunk chunk, LodBuilderConfig config, int xRel, int zRel, int yAbs, BlockPos.Mutable blockPos)
+	{
+		short depth = DEFAULT_DEPTH;
+		/*if (config.useHeightmap)
+		{
+			// when using the generated heightmap there is no data about the lowest point
+			depth = 0; //DEFAULT_DEPTH == 0
+		}
+		else
+		{*/
+		boolean voidData = true;
+		ChunkSection[] chunkSections = chunk.getSections();
+		for (int sectionIndex = chunkSections.length - 1; sectionIndex >= 0; sectionIndex--)
+		{
+			for (int yRel = CHUNK_DATA_WIDTH - 1; yRel >= 0; yRel--)
+			{
+				if (sectionIndex * CHUNK_DATA_WIDTH + yRel > yAbs)
+					continue;
+				
+				blockPos.set(chunk.getPos().getMinBlockX() + xRel, sectionIndex * CHUNK_DATA_WIDTH + yRel, chunk.getPos().getMinBlockZ() + zRel);
+				if (!isLayerValidLodPoint(chunk, blockPos))
+				{
+					depth = (short) (sectionIndex * CHUNK_DATA_WIDTH + yRel + 1);
+					voidData = false;
+					break;
+				}
+			}
+			
+			if (!voidData)
+				break;
+		}
+		//}
+		return depth;
+	}
+	
+	/** Find the highest valid point from the Top */
+	private short determineHeightPointFrom(IChunk chunk, LodBuilderConfig config, int xRel, int zRel, int yAbs, BlockPos.Mutable blockPos)
+	{
+		short height = DEFAULT_HEIGHT;
+		if (config.useHeightmap)
+			height = (short) chunk.getOrCreateHeightmapUnprimed(LodUtil.DEFAULT_HEIGHTMAP).getFirstAvailable(xRel, zRel);
+		else
+		{
+			boolean voidData = true;
+			ChunkSection[] chunkSections = chunk.getSections();
+			for (int sectionIndex = chunkSections.length - 1; sectionIndex >= 0; sectionIndex--)
+			{
+				for (int yRel = CHUNK_DATA_WIDTH - 1; yRel >= 0; yRel--)
+				{
+					if (sectionIndex * CHUNK_DATA_WIDTH + yRel > yAbs)
+						continue;
+					blockPos.set(chunk.getPos().getMinBlockX() + xRel, sectionIndex * CHUNK_DATA_WIDTH + yRel, chunk.getPos().getMinBlockZ() + zRel);
+					if (isLayerValidLodPoint(chunk, blockPos))
+					{
+						height = (short) (sectionIndex * CHUNK_DATA_WIDTH + yRel + 1);
+						voidData = false;
+						break;
+					}
+				}
+				if (!voidData)
+					break;
+			}
+		}
+		return height;
+	}
+	
+	
+	
+	// =====================//
+	// constructor helpers //
+	// =====================//
+	
+	/**
+	 * Generate the color for the given chunk using biome water color, foliage
+	 * color, and grass color.
+	 */
+	private int generateLodColor(IChunk chunk, LodBuilderConfig config, int xRel, int yAbs, int zRel, BlockPos.Mutable blockPos)
+	{
+		ChunkSection[] chunkSections = chunk.getSections();
+		int colorInt = 0;
+		if (config.useBiomeColors)
+		{
+			// I have no idea why I need to bit shift to the right, but
+			// if I don't the biomes don't show up correctly.
+			Biome biome = chunk.getBiomes().getNoiseBiome(xRel >> 2, yAbs >> 2, zRel >> 2);
+			colorInt = getColorForBiome(xRel, zRel, biome);
+		}
+		else
+		{
+			int sectionIndex = Math.floorDiv(yAbs, CHUNK_SECTION_HEIGHT);
+			int yRel = Math.floorMod(yAbs, CHUNK_SECTION_HEIGHT);
+			if (chunkSections[sectionIndex] != null)
+			{
+				blockPos.set(chunk.getPos().getMinBlockX() + xRel, sectionIndex * CHUNK_DATA_WIDTH + yRel, chunk.getPos().getMinBlockZ() + zRel);
+				colorInt = getColorForBlock(chunk, blockPos);
+			}
+			
+			// if we are skipping non-full and non-solid blocks that means we ignore
+			// snow, flowers, etc. Get the above block so we can still get the color
+			// of the snow, flower, etc. that may be above this block
+			int aboveColorInt = 0;
+			if (LodConfig.CLIENT.worldGenerator.blockToAvoid.get().nonFull || LodConfig.CLIENT.worldGenerator.blockToAvoid.get().noCollision)
+			{
+				blockPos.set(chunk.getPos().getMinBlockX() + xRel, sectionIndex * CHUNK_DATA_WIDTH + yRel + 1, chunk.getPos().getMinBlockZ() + zRel);
+				aboveColorInt = getColorForBlock(chunk, blockPos);
+			}
+			
+			if (colorInt == 0 && yAbs > 0)
+				// if this block is invisible, check the block below it
+				colorInt = generateLodColor(chunk, config, xRel, yAbs - 1, zRel, blockPos);
+			
+			// override this block's color if there was a block above this
+			// and we were avoiding non-full/non-solid blocks
+			if (aboveColorInt != 0)
+				colorInt = aboveColorInt;
+		}
+		
+		return colorInt;
+	}
+	
+	/** Gets the light value for the given block position */
+	private int getLightValue(IChunk chunk, BlockPos.Mutable blockPos, boolean hasCeiling, boolean hasSkyLight, boolean topBlock)
+	{
+		int skyLight = 0;
+		int blockLight;
+		// 1 means the lighting is a guess
+		int isDefault = 0;
+		
+		
+		ClientWorld clientWorld = mc.getClientWorld();
+		if (clientWorld == null)
+			return 0;
+		ServerWorld serverWorld = LodUtil.getServerWorldFromDimension(clientWorld.dimensionType());
+		
+		
+		int blockBrightness = chunk.getLightEmission(blockPos);
+		// get the air block above or below this block
+		if (hasCeiling && topBlock)
+			blockPos.set(blockPos.getX(), blockPos.getY() - 1, blockPos.getZ());
+		else
+			blockPos.set(blockPos.getX(), blockPos.getY() + 1, blockPos.getZ());
+		
+		
+		
+		if (serverWorld != null)
+		{
+			// server world sky light (always accurate)
+			blockLight = serverWorld.getBrightness(LightType.BLOCK, blockPos);
+			if(topBlock && !hasCeiling && hasSkyLight)
+				skyLight = DEFAULT_MAX_LIGHT;
+			else
+				skyLight = serverWorld.getBrightness(LightType.SKY, blockPos);
+			
+			if (!topBlock && skyLight == 15)
+			{
+				// we are on predicted terrain, and we don't know what the light here is,
+				// lets just take a guess
+				if (blockPos.getY() >= mc.getClientWorld().getSeaLevel() - 5)
+				{
+					skyLight = 12;
+					isDefault = 1;
+				}
+				else
+					skyLight = 0;
+			}
+		}
+		else
+		{
+			// client world sky light (almost never accurate)
+			blockLight = clientWorld.getBrightness(LightType.BLOCK, blockPos);
+			// estimate what the lighting should be
+			if (hasSkyLight || !hasCeiling)
+			{
+				if (topBlock)
+					skyLight = DEFAULT_MAX_LIGHT;
+				else
+				{
+					skyLight = clientWorld.getBrightness(LightType.SKY, blockPos);
+					if (!chunk.isLightCorrect() && (skyLight == 0 || skyLight == 15))
+					{
+						// we don't know what the light here is,
+						// lets just take a guess
+						if (blockPos.getY() >= mc.getClientWorld().getSeaLevel() - 5)
+						{
+							skyLight = 12;
+							isDefault = 1;
+						}
+						else
+							skyLight = 0;
+					}
+				}
+			}
+		}
+		
+		blockLight = LodUtil.clamp(0, Math.max(blockLight, blockBrightness), DEFAULT_MAX_LIGHT);
+		
+		return blockLight + (skyLight << 4) + (isDefault << 8);
+	}
+	
+	
+	/**
+	 * Generate the color of the given block from its texture
+	 * and store it for later use.
+	 */
+	private int getColorTextureForBlock(BlockState blockState, BlockPos blockPos, boolean useTopTexture)
+	{
+		// use the pre-generated color if we can
+		Block block = blockState.getBlock();
+		if (colorMap.containsKey(block) && toTint.containsKey(block))
+			return colorMap.get(block);
+		
+		
+		
+		World world = mc.getClientWorld();
+		TextureAtlasSprite texture;
+		List<BakedQuad> quads = null;
+		int tintIndex = Integer.MIN_VALUE;
+		boolean isTinted = false;
+		int listSize = 0;
+		// get the first quad we can for this block
+		for (Direction direction : directions)
+		{
+			quads = mc.getModelManager().getBlockModelShaper().getBlockModel(blockState).getQuads(blockState, direction, new Random(0), dataMap);
+			listSize = Math.max(listSize, quads.size());
+			for (BakedQuad bakedQuad : quads)
+			{
+				isTinted |= bakedQuad.isTinted();
+				tintIndex = Math.max(tintIndex, bakedQuad.getTintIndex());
+			}
+		}
+		toTint.put(block, isTinted);
+		tintColor.put(block, tintIndex);
+		for (Direction direction : directions)
+		{
+			quads = mc.getModelManager().getBlockModelShaper().getBlockModel(blockState).getQuads(blockState, direction, new Random(0), dataMap);
+			if (!quads.isEmpty())
+				break;
+		}
+		
+		if (useTopTexture && !quads.isEmpty())
+			texture = quads.get(0).getSprite();
+		else
+			texture = mc.getModelManager().getBlockModelShaper().getTexture(blockState, world, blockPos);
+		
+		
+		int count = 0;
+		int alpha = 0;
+		int red = 0;
+		int green = 0;
+		int blue = 0;
+		int numberOfGreyPixel = 0;
+		int color;
+		int colorMultiplier;
+		
+		// generate the block's color
+		for (int frameIndex = 0; frameIndex < texture.getFrameCount(); frameIndex++)
+		{
+			// textures normally use u and v instead of x and y
+			for (int u = 0; u < texture.getHeight(); u++)
+			{
+				for (int v = 0; v < texture.getWidth(); v++)
+				{
+					if (texture.isTransparent(frameIndex, u, v))
+						continue;
+					
+					color = texture.getPixelRGBA(frameIndex, u, v);
+					
+					// determine if this pixel is gray
+					int colorMax = Math.max(Math.max(ColorUtil.getBlue(color), ColorUtil.getGreen(color)), ColorUtil.getRed(color));
+					int colorMin = 4 + Math.min(Math.min(ColorUtil.getBlue(color), ColorUtil.getGreen(color)), ColorUtil.getRed(color));
+					boolean isGray = colorMax < colorMin;
+					if (isGray)
+						numberOfGreyPixel++;
+					
+					
+					// for flowers, weight their non-green color higher
+					if (block instanceof FlowerBlock && (!(ColorUtil.getGreen(color) > (ColorUtil.getBlue(color) + 30)) || !(ColorUtil.getGreen(color) > (ColorUtil.getRed(color) + 30))))
+						colorMultiplier = 5;
+					else
+						colorMultiplier = 1;
+					
+					
+					// add to the running averages
+					count += colorMultiplier;
+					alpha += ColorUtil.getAlpha(color) * colorMultiplier;
+					red += ColorUtil.getBlue(color) * colorMultiplier;
+					green += ColorUtil.getGreen(color) * colorMultiplier;
+					blue += ColorUtil.getRed(color) * colorMultiplier;
+				}
+			}
+		}
+		
+		
+		if (count == 0)
+			// this block is entirely transparent
+			color = 0;
+		else
+		{
+			// determine the average color
+			alpha /= count;
+			red /= count;
+			green /= count;
+			blue /= count;
+			color = ColorUtil.rgbToInt(alpha, red, green, blue);
+		}
+		
+		// determine if this block should use the biome color tint
+		if ((useGrassTint(block) || useLeafTint(block) || useWaterTint(block)) && (float) numberOfGreyPixel / count > 0.75f)
+			toTint.replace(block, true);
+		
+		// add the newly generated block color to the map for later use
+		colorMap.put(block, color);
+		return color;
+	}
+	
+	/** determine if the given block should use the biome's grass color */
+	private boolean useGrassTint(Block block)
+	{
+		return block instanceof GrassBlock
+				|| block instanceof BushBlock
+				|| block instanceof IGrowable
+				|| block instanceof AbstractPlantBlock
+				|| block instanceof AbstractTopPlantBlock
+				|| block instanceof TallGrassBlock;
+	}
+	
+	/** determine if the given block should use the biome's foliage color */
+	private boolean useLeafTint(Block block)
+	{
+		return block instanceof LeavesBlock
+				|| block == Blocks.VINE
+				|| block == Blocks.SUGAR_CANE;
+	}
+	
+	/** determine if the given block should use the biome's water color */
+	private boolean useWaterTint(Block block)
+	{
+		return block == Blocks.WATER;
+	}
+	
+	/** Returns a color int for the given block. */
+	private int getColorForBlock(IChunk chunk, BlockPos blockPos)
+	{
+		
+		
+		int blockColor;
+		int colorInt;
+		
+		int xRel = blockPos.getX() - chunk.getPos().getMinBlockX();
+		int zRel = blockPos.getZ() - chunk.getPos().getMinBlockZ();
+		int x = blockPos.getX();
+		int y = blockPos.getY();
+		int z = blockPos.getZ();
+		
+		//Biome biome = chunk.getBiomes().getNoiseBiome(xRel >> 2, y >> 2, zRel >> 2);
+		BlockState blockState = chunk.getBlockState(blockPos);
+		
+		if(isInWater(blockState))
+			blockState = Blocks.WATER.defaultBlockState();
+		
+		// block special cases
+		// TODO: this needs to be replaced by a config file of some sort
+		if (blockState == Blocks.AIR.defaultBlockState()
+				|| blockState == Blocks.CAVE_AIR.defaultBlockState()
+				|| blockState == Blocks.BARRIER.defaultBlockState())
+		{
+			return 0;
+		}
+		
+		blockColor = getColorTextureForBlock(blockState, blockPos, true);
+		
+		//if the blockColor is 0 we reset it and don't use the faceColor
+		if (blockColor == 0)
+		{
+			tintColor.remove(blockState.getBlock());
+			toTint.remove(blockState.getBlock());
+			colorMap.remove(blockState.getBlock());
+			blockColor = getColorTextureForBlock(blockState, blockPos, false);
+		}
+		
+		//if the blockColor is still 0 we use the default material color
+		if (blockColor == 0)
+		{
+			tintColor.replace(blockState.getBlock(), 0);
+			toTint.replace(blockState.getBlock(), false);
+			colorMap.replace(blockState.getBlock(), blockState.getBlock().defaultMaterialColor().col);
+		}
+		
+		if (toTint.get(blockState.getBlock()))
+		{
+			Biome biome = chunk.getBiomes().getNoiseBiome(xRel >> 2, y >> 2, zRel >> 2);
+			
+			ClientWorld clientWorld = mc.getClientWorld();
+			if (clientWorld == null)
+				return 0;
+			ServerWorld serverWorld = LodUtil.getServerWorldFromDimension(clientWorld.dimensionType());
+			
+			int tintValue;
+			if (useGrassTint(blockState.getBlock()))
+			{
+				// grass and green plants
+				try
+				{
+					tintValue = BiomeColors.getAverageGrassColor(serverWorld, blockPos);
+				}
+				catch(NullPointerException e)
+				{
+					tintValue = biome.getGrassColor(x, z);	
+				}
+			}
+			else if (useWaterTint(blockState.getBlock()))
+			{
+				// water
+				try
+				{
+						tintValue = BiomeColors.getAverageWaterColor(serverWorld, blockPos);
+				}
+				catch(NullPointerException e)
+				{
+					tintValue = biome.getWaterColor();	
+				}
+			}
+			else
+			{
+				// leaves
+				try
+				{
+				tintValue = BiomeColors.getAverageFoliageColor(serverWorld, blockPos);
+				}
+				catch(NullPointerException e)
+				{
+					tintValue = biome.getFoliageColor();	
+				}
+			}
+			colorInt = ColorUtil.multiplyRGBcolors(tintValue | 0xFF000000, blockColor);
+		}
+		else
+			colorInt = blockColor;
+		return colorInt;
+	}
+	
+	/** Returns a color int for the given biome. */
+	private int getColorForBiome(int x, int z, Biome biome)
+	{
+		int colorInt;
+		
+		switch (biome.getBiomeCategory())
+		{
+		
+		case NETHER:
+			colorInt = Blocks.NETHERRACK.defaultBlockState().materialColor.col;
+			break;
+		
+		case THEEND:
+			colorInt = Blocks.END_STONE.defaultBlockState().materialColor.col;
+			break;
+		
+		case BEACH:
+		case DESERT:
+			colorInt = Blocks.SAND.defaultBlockState().materialColor.col;
+			break;
+		
+		case EXTREME_HILLS:
+			colorInt = Blocks.STONE.defaultMaterialColor().col;
+			break;
+		
+		case MUSHROOM:
+			colorInt = MaterialColor.COLOR_LIGHT_GRAY.col;
+			break;
+		
+		case ICY:
+			colorInt = Blocks.SNOW.defaultMaterialColor().col;
+			break;
+		
+		case MESA:
+			colorInt = Blocks.RED_SAND.defaultMaterialColor().col;
+			break;
+		
+		case OCEAN:
+		case RIVER:
+			colorInt = biome.getWaterColor();
+			break;
+		
+		case NONE:
+		case FOREST:
+		case TAIGA:
+		case JUNGLE:
+		case PLAINS:
+		case SAVANNA:
+		case SWAMP:
+		default:
+			Color tmp = LodUtil.intToColor(biome.getGrassColor(x, z));
+			tmp = tmp.darker();
+			colorInt = LodUtil.colorToInt(tmp);
+			break;
+			
+		}
+		
+		return colorInt;
+	}
+	
+	private boolean isInWater(BlockState blockState)
+	{
+		//This type of block is always in water
+		if((blockState.getBlock() instanceof ILiquidContainer) && !(blockState.getBlock() instanceof IWaterLoggable))
+			return true;
+		
+		//This type of block could be in water
+		if(blockState.getOptionalValue(BlockStateProperties.WATERLOGGED).isPresent() && blockState.getOptionalValue(BlockStateProperties.WATERLOGGED).get())
+			return true;
+		
+		return false;
+	}
+	
+	
+	/** Is the block at the given blockPos a valid LOD point? */
+	private boolean isLayerValidLodPoint(IChunk chunk, BlockPos.Mutable blockPos)
+	{
+		
+		BlockState blockState = chunk.getBlockState(blockPos);
+		
+		if (isInWater(blockState))
+			return true;
+			
+		boolean nonFullAvoidance = LodConfig.CLIENT.worldGenerator.blockToAvoid.get().nonFull;
+		boolean	noCollisionAvoidance = LodConfig.CLIENT.worldGenerator.blockToAvoid.get().noCollision;
+		if (blockState != null)
+		{
+			if (nonFullAvoidance)
+			{
+				if(!blockState.getFluidState().isEmpty() || blockState.getBlock() instanceof SixWayBlock)
+				{
+					notFullBlock.put(blockState.getBlock(), false);
+				}
+				if (!notFullBlock.containsKey(blockState.getBlock()) || notFullBlock.get(blockState.getBlock()) == null)
+				{
+					VoxelShape voxelShape = blockState.getBlock().defaultBlockState().getShape(chunk, blockPos);
+					
+					if (!voxelShape.isEmpty())
+					{
+						AxisAlignedBB bbox = voxelShape.bounds();
+						double xWidth = (bbox.maxX - bbox.minX);
+						double yWidth = (bbox.maxY - bbox.minY);
+						double zWidth = (bbox.maxZ - bbox.minZ);
+						if (xWidth < 1 && zWidth < 1 && yWidth < 1)
+							notFullBlock.put(blockState.getBlock(), true);
+						else
+							notFullBlock.put(blockState.getBlock(), false);
+					}
+					else
+					{
+						notFullBlock.put(blockState.getBlock(), false);
+					}
+				}
+				
+				if (notFullBlock.get(blockState.getBlock()))
+				{
+					return false;
+				}
+			}
+			
+			if (noCollisionAvoidance)
+			{
+				if(!blockState.getFluidState().isEmpty() || blockState.getBlock() instanceof SixWayBlock)
+					smallBlock.put(blockState.getBlock(), false);
+				
+				if (!smallBlock.containsKey(blockState.getBlock()) || smallBlock.get(blockState.getBlock()) == null)
+				{
+					VoxelShape voxelShape = blockState.getCollisionShape(chunk, blockPos);
+					if (!blockState.getFluidState().isEmpty())
+					{
+						smallBlock.put(blockState.getBlock(), false);
+					}
+					else
+					{
+						
+						if (voxelShape.isEmpty())
+						{
+							smallBlock.put(blockState.getBlock(), true);
+						}
+						else
+						{
+							smallBlock.put(blockState.getBlock(), false);
+						}
+					}
+				}
+				
+				if (smallBlock.get(blockState.getBlock()))
+				{
+					return false;
+				}
+			}
+			
+			
+			return blockState.getBlock() != Blocks.AIR
+						   && blockState.getBlock() != Blocks.CAVE_AIR
+						   && blockState.getBlock() != Blocks.BARRIER;
+		}
+		
+		return false;
+	}
+}
@@ -0,0 +1,95 @@
+/*
+ *    This file is part of the Distant Horizon mod (formerly the LOD Mod),
+ *    licensed under the GNU GPL v3 License.
+ *
+ *    Copyright (C) 2020  James Seibel
+ *
+ *    This program is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, version 3.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.seibel.lod.builders.lodBuilding;
+
+import com.seibel.lod.enums.DistanceGenerationMode;
+
+/**
+ * This is used to easily configure how LodChunks are generated.
+ * Generally this will only be used if we want to generate a
+ * LodChunk using an incomplete Chunk, otherwise the defaults
+ * work best for a fully generated chunk (IE has correct surface blocks).
+ * @author James Seibel
+ * @version 8-14-2021
+ */
+public class LodBuilderConfig
+{
+	/** default: false */
+	public boolean useHeightmap;
+	/** default: false */
+	public boolean useBiomeColors;
+	/** default: true */
+	public boolean useSolidBlocksInColorGen;
+	/** default: server */
+	public DistanceGenerationMode distanceGenerationMode;
+	
+	/**
+	 * default settings for a normal chunk <br>
+	 * useHeightmap = false <br>
+	 * useBiomeColors = false <br>
+	 * useSolidBlocksInColorGen = true <br>
+	 * generationMode = Server <br>
+	 */
+	public LodBuilderConfig()
+	{
+		useHeightmap = false;
+		useBiomeColors = false;
+		useSolidBlocksInColorGen = true;
+		distanceGenerationMode = DistanceGenerationMode.SERVER;
+	}
+	
+	/**
+	 * @param newUseHeightmap default = false
+	 * @param newUseBiomeColors default = false
+	 * @param newUseSolidBlocksInBiomeColor default = true
+	 * @param newDistanceGenerationMode default = Server
+	 */
+	public LodBuilderConfig(boolean newUseHeightmap, boolean newUseBiomeColors,
+			boolean newUseSolidBlocksInBiomeColor, DistanceGenerationMode newDistanceGenerationMode)
+	{
+		useHeightmap = newUseHeightmap;
+		useBiomeColors = newUseBiomeColors;
+		useSolidBlocksInColorGen = newUseSolidBlocksInBiomeColor;
+		distanceGenerationMode = newDistanceGenerationMode;
+	}
+	
+	/**
+	 * @param newUseHeightmap default = false
+	 * @param newUseBiomeColors default = false
+	 * @param newUseSolidBlocksInBiomeColor default = true
+	 */
+	public LodBuilderConfig(boolean newUseHeightmap, boolean newUseBiomeColors, boolean newUseSolidBlocksInBiomeColor)
+	{
+		this();
+		useHeightmap = newUseHeightmap;
+		useBiomeColors = newUseBiomeColors;
+		useSolidBlocksInColorGen = newUseSolidBlocksInBiomeColor;
+		distanceGenerationMode = newUseHeightmap ? DistanceGenerationMode.BIOME_ONLY_SIMULATE_HEIGHT : DistanceGenerationMode.BIOME_ONLY;
+	}
+	
+	/**
+	 * @param newDistanceGenerationMode default = Server
+	 */
+	public LodBuilderConfig(DistanceGenerationMode newDistanceGenerationMode)
+	{
+		this();
+		distanceGenerationMode = newDistanceGenerationMode;
+	}
+}
@@ -1,42 +0,0 @@
-package com.seibel.lod.builders.lodTemplates;
-
-import java.awt.Color;
-
-import com.seibel.lod.objects.LodChunk;
-import com.seibel.lod.objects.LodDimension;
-
-import net.minecraft.client.renderer.BufferBuilder;
-
-/**
- * This is the abstract class used to create different
- * BufferBuilders.
- * 
- * @author James Seibel
- * @version 05-07-2021
- */
-public abstract class AbstractLodTemplate
-{
-	/** alpha used when drawing chunks in debug mode */
-	protected int debugAlpha = 255; // 0 - 255
-	protected Color debugBlack = new Color(0, 0, 0, debugAlpha);
-	protected Color debugWhite = new Color(255, 255, 255, debugAlpha);
-	
-	
-	public abstract void addLodToBuffer(BufferBuilder buffer, 
-			LodDimension lodDim, LodChunk lod, 
-			double xOffset, double yOffset, double zOffset, 
-			boolean debugging);
-	
-	/** add the given position and color to the buffer */
-	protected void addPosAndColor(BufferBuilder buffer, 
-			double x, double y, double z, 
-			int red, int green, int blue, int alpha)
-	{
-		buffer.pos(x, y, z).color(red, green, blue, alpha).endVertex();
-	}
-	
-	
-	
-	
-	
-}
@@ -1,277 +0,0 @@
-package com.seibel.lod.builders.lodTemplates;
-
-import java.awt.Color;
-import java.util.EnumSet;
-
-import com.seibel.lod.enums.ColorDirection;
-import com.seibel.lod.enums.RelativeChunkPos;
-import com.seibel.lod.objects.LodChunk;
-import com.seibel.lod.objects.LodDimension;
-import com.seibel.lod.util.LodConfig;
-
-import net.minecraft.client.renderer.BufferBuilder;
-import net.minecraft.util.math.AxisAlignedBB;
-
-/**
- * Builds LODs as rectangular prisms.
- * 
- * @author James Seibel
- * @version 05-31-2021
- */
-public class CubicLodTemplate extends AbstractLodTemplate
-{
-	
-	public CubicLodTemplate()
-	{
-		
-	}
-	
-	
-	@Override
-	public void addLodToBuffer(BufferBuilder buffer,
-			LodDimension lodDim, LodChunk centerLod, 
-			double xOffset, double yOffset, double zOffset, 
-			boolean debugging)
-	{
-		AxisAlignedBB bbox;
-		
-		// Add this LOD to the BufferBuilder
-		// using the quality setting set by the config
-		switch(LodConfig.CLIENT.lodDetail.get())
-		{
-		// add a single LOD object for this chunk
-		case SINGLE:
-			
-			// returns null if the lod is empty at the given location
-			bbox = generateBoundingBox(centerLod.getHeight(), centerLod.getDepth(), LodChunk.WIDTH, xOffset, yOffset, zOffset);
-			
-			if (bbox != null)
-			{
-				addBoundingBoxToBuffer(buffer, bbox, generateLodColors(centerLod, false));
-			}
-			
-			break;
-		
-		// add 4 LOD objects for this chunk
-		case DOUBLE:
-			/*
-			 * This method generates LODs using the LodChunks that
-			 * are adjacent to create an average quarter and thus 
-			 * smooth the transition between chunks.
-			 */
-			
-			// get the adjacent LodChunks
-			LodChunk[] lods = new LodChunk[RelativeChunkPos.values().length];
-			for(RelativeChunkPos pos : RelativeChunkPos.values())
-				lods[pos.index] = lodDim.getLodFromCoordinates(centerLod.x + pos.x, centerLod.z + pos.z);
-			
-			
-			int halfWidth = LodChunk.WIDTH / 2;
-			
-			// use the adjacent chunks to generate quarter sections
-			for(EnumSet<RelativeChunkPos> set : RelativeChunkPos.CORNERS)
-			{
-				int x = 0;
-				int z = 0;
-				
-				// Weight the center LodChunk by this amount
-				// when taking the average.
-				// this should be between 3 and 6; 
-				// if set to 1 (no extra weight)
-				// then the chunks don't appear to be averaged.
-				int centerWeight = 3;
-				
-				// how many LodChunks adjacent to the center
-				// are valid?
-				int validPoints = centerWeight;
-				
-				int avgHeight = centerLod.getHeight() * centerWeight;
-				int avgDepth = centerLod.getDepth() * centerWeight;
-				
-				int[][] colorAverages = new int[ColorDirection.values().length][3];
-				Color[] colorToAdd = generateLodColors(centerLod, debugging);
-				for(int i = 0; i < centerWeight; i++)
-					colorAverages = addColorToColorAverages(colorAverages, colorToAdd);
-				
-				for(RelativeChunkPos cornerPos : set)
-				{
-					// set the x and y location based on which
-					// corner we are working on
-					if (RelativeChunkPos.DIAGONAL.contains(cornerPos))
-					{
-						x = Math.min(cornerPos.x, 0) * halfWidth;
-						z = Math.min(cornerPos.z, 0) * halfWidth;
-					}
-					
-					LodChunk cornerLod = lods[cornerPos.index];
-					if (cornerLod != null && !cornerLod.isLodEmpty())
-					{
-						validPoints++;
-						
-						avgHeight += cornerLod.getHeight();
-						avgDepth += cornerLod.getDepth();
-						
-						// only generate average colors if we aren't debugging
-						// (this is to prevent everything from becoming grey)
-						if (!debugging)
-							colorToAdd = generateLodColors(cornerLod, debugging);
-						else
-							colorToAdd = generateLodColors(centerLod, debugging);
-						// add to the running color average
-						colorAverages = addColorToColorAverages(colorAverages, colorToAdd);
-					}
-				}
-				
-				
-				// convert the heights into actual averages
-				avgHeight /= validPoints;
-				avgDepth /= validPoints;
-				// calculate the average colors
-				Color[] colors = new Color[ColorDirection.values().length];
-				for(ColorDirection dir : ColorDirection.values())
-				{
-					for(int rgbIndex = 0; rgbIndex < 3; rgbIndex++)
-						colorAverages[dir.value][rgbIndex] /= validPoints;
-					colors[dir.value] = new Color(colorAverages[dir.value][0], colorAverages[dir.value][1], colorAverages[dir.value][2]);
-				}
-				
-				
-				// returns null if the lod is empty at the given location
-				bbox = generateBoundingBox(avgHeight, avgDepth, halfWidth, xOffset - (halfWidth / 2) + x + 12, yOffset, zOffset - (halfWidth / 2) + z + 12);
-				
-				if (bbox != null)
-				{
-					addBoundingBoxToBuffer(buffer, bbox, colors);
-				}
-			}
-			break;
-		} // case
-	}
-	
-	
-	private int[][] addColorToColorAverages(int[][] colorAverages, Color[] colorToAdd) 
-	{
-		for(ColorDirection dir : ColorDirection.values())
-		{
-			// convert the colorToAdd to an int array
-			float[] colorCompoments = new float[4];
-			colorCompoments = colorToAdd[dir.value].getColorComponents(colorCompoments);
-			
-			// add each color component to the array
-			for(int rgbIndex = 0; rgbIndex < 3; rgbIndex++)
-			{
-				// * 255 + 0.5 taken from the Color java class
-				colorAverages[dir.value][rgbIndex] += (int) (colorCompoments[rgbIndex] * 255 + 0.5);
-			}
-		}
-		
-		return colorAverages;
-	}
-	
-	
-	
-	
-	private AxisAlignedBB generateBoundingBox(int height, int depth, int width, double xOffset, double yOffset, double zOffset)
-	{
-		// don't add an LOD if it is empty
-		if (height == -1 && depth == -1)
-			return null;
-		
-		if (depth == height)
-		{
-			// if the top and bottom points are at the same height
-			// render this LOD as 1 block thick
-			height++;
-		}
-		
-		return new AxisAlignedBB(0, depth, 0, width, height, width).offset(xOffset, yOffset, zOffset);
-	}
-	
-	
-	
-	private void addBoundingBoxToBuffer(BufferBuilder buffer, AxisAlignedBB bb, Color[] c)
-	{
-		// top (facing up)
-		addPosAndColor(buffer, bb.minX, bb.maxY, bb.minZ, c[ColorDirection.TOP.value].getRed(), c[ColorDirection.TOP.value].getGreen(), c[ColorDirection.TOP.value].getBlue(), c[ColorDirection.TOP.value].getAlpha());
-		addPosAndColor(buffer, bb.minX, bb.maxY, bb.maxZ, c[ColorDirection.TOP.value].getRed(), c[ColorDirection.TOP.value].getGreen(), c[ColorDirection.TOP.value].getBlue(), c[ColorDirection.TOP.value].getAlpha());
-		addPosAndColor(buffer, bb.maxX, bb.maxY, bb.maxZ, c[ColorDirection.TOP.value].getRed(), c[ColorDirection.TOP.value].getGreen(), c[ColorDirection.TOP.value].getBlue(), c[ColorDirection.TOP.value].getAlpha());
-		addPosAndColor(buffer, bb.maxX, bb.maxY, bb.minZ, c[ColorDirection.TOP.value].getRed(), c[ColorDirection.TOP.value].getGreen(), c[ColorDirection.TOP.value].getBlue(), c[ColorDirection.TOP.value].getAlpha());
-		// bottom (facing down)
-		addPosAndColor(buffer, bb.maxX, bb.minY, bb.minZ, c[ColorDirection.BOTTOM.value].getRed(), c[ColorDirection.BOTTOM.value].getGreen(), c[ColorDirection.BOTTOM.value].getBlue(), c[ColorDirection.BOTTOM.value].getAlpha());
-		addPosAndColor(buffer, bb.maxX, bb.minY, bb.maxZ, c[ColorDirection.BOTTOM.value].getRed(), c[ColorDirection.BOTTOM.value].getGreen(), c[ColorDirection.BOTTOM.value].getBlue(), c[ColorDirection.BOTTOM.value].getAlpha());
-		addPosAndColor(buffer, bb.minX, bb.minY, bb.maxZ, c[ColorDirection.BOTTOM.value].getRed(), c[ColorDirection.BOTTOM.value].getGreen(), c[ColorDirection.BOTTOM.value].getBlue(), c[ColorDirection.BOTTOM.value].getAlpha());
-		addPosAndColor(buffer, bb.minX, bb.minY, bb.minZ, c[ColorDirection.BOTTOM.value].getRed(), c[ColorDirection.BOTTOM.value].getGreen(), c[ColorDirection.BOTTOM.value].getBlue(), c[ColorDirection.BOTTOM.value].getAlpha());
-
-		// south (facing -Z) 
-		addPosAndColor(buffer, bb.maxX, bb.minY, bb.maxZ, c[ColorDirection.SOUTH.value].getRed(), c[ColorDirection.SOUTH.value].getGreen(), c[ColorDirection.SOUTH.value].getBlue(), c[ColorDirection.SOUTH.value].getAlpha());
-		addPosAndColor(buffer, bb.maxX, bb.maxY, bb.maxZ, c[ColorDirection.SOUTH.value].getRed(), c[ColorDirection.SOUTH.value].getGreen(), c[ColorDirection.SOUTH.value].getBlue(), c[ColorDirection.SOUTH.value].getAlpha());
-		addPosAndColor(buffer, bb.minX, bb.maxY, bb.maxZ, c[ColorDirection.SOUTH.value].getRed(), c[ColorDirection.SOUTH.value].getGreen(), c[ColorDirection.SOUTH.value].getBlue(), c[ColorDirection.SOUTH.value].getAlpha());
-		addPosAndColor(buffer, bb.minX, bb.minY, bb.maxZ, c[ColorDirection.SOUTH.value].getRed(), c[ColorDirection.SOUTH.value].getGreen(), c[ColorDirection.SOUTH.value].getBlue(), c[ColorDirection.SOUTH.value].getAlpha());
-		// north (facing +Z)
-		addPosAndColor(buffer, bb.minX, bb.minY, bb.minZ, c[ColorDirection.NORTH.value].getRed(), c[ColorDirection.NORTH.value].getGreen(), c[ColorDirection.NORTH.value].getBlue(), c[ColorDirection.NORTH.value].getAlpha());
-		addPosAndColor(buffer, bb.minX, bb.maxY, bb.minZ, c[ColorDirection.NORTH.value].getRed(), c[ColorDirection.NORTH.value].getGreen(), c[ColorDirection.NORTH.value].getBlue(), c[ColorDirection.NORTH.value].getAlpha());
-		addPosAndColor(buffer, bb.maxX, bb.maxY, bb.minZ, c[ColorDirection.NORTH.value].getRed(), c[ColorDirection.NORTH.value].getGreen(), c[ColorDirection.NORTH.value].getBlue(), c[ColorDirection.NORTH.value].getAlpha());
-		addPosAndColor(buffer, bb.maxX, bb.minY, bb.minZ, c[ColorDirection.NORTH.value].getRed(), c[ColorDirection.NORTH.value].getGreen(), c[ColorDirection.NORTH.value].getBlue(), c[ColorDirection.NORTH.value].getAlpha());
-
-		// west (facing -X)
-		addPosAndColor(buffer, bb.minX, bb.minY, bb.minZ, c[ColorDirection.WEST.value].getRed(), c[ColorDirection.WEST.value].getGreen(), c[ColorDirection.WEST.value].getBlue(), c[ColorDirection.WEST.value].getAlpha());
-		addPosAndColor(buffer, bb.minX, bb.minY, bb.maxZ, c[ColorDirection.WEST.value].getRed(), c[ColorDirection.WEST.value].getGreen(), c[ColorDirection.WEST.value].getBlue(), c[ColorDirection.WEST.value].getAlpha());
-		addPosAndColor(buffer, bb.minX, bb.maxY, bb.maxZ, c[ColorDirection.WEST.value].getRed(), c[ColorDirection.WEST.value].getGreen(), c[ColorDirection.WEST.value].getBlue(), c[ColorDirection.WEST.value].getAlpha());
-		addPosAndColor(buffer, bb.minX, bb.maxY, bb.minZ, c[ColorDirection.WEST.value].getRed(), c[ColorDirection.WEST.value].getGreen(), c[ColorDirection.WEST.value].getBlue(), c[ColorDirection.WEST.value].getAlpha());
-		// east (facing +X)
-		addPosAndColor(buffer, bb.maxX, bb.maxY, bb.minZ, c[ColorDirection.EAST.value].getRed(), c[ColorDirection.EAST.value].getGreen(), c[ColorDirection.EAST.value].getBlue(), c[ColorDirection.EAST.value].getAlpha());
-		addPosAndColor(buffer, bb.maxX, bb.maxY, bb.maxZ, c[ColorDirection.EAST.value].getRed(), c[ColorDirection.EAST.value].getGreen(), c[ColorDirection.EAST.value].getBlue(), c[ColorDirection.EAST.value].getAlpha());
-		addPosAndColor(buffer, bb.maxX, bb.minY, bb.maxZ, c[ColorDirection.EAST.value].getRed(), c[ColorDirection.EAST.value].getGreen(), c[ColorDirection.EAST.value].getBlue(), c[ColorDirection.EAST.value].getAlpha());
-		addPosAndColor(buffer, bb.maxX, bb.minY, bb.minZ, c[ColorDirection.EAST.value].getRed(), c[ColorDirection.EAST.value].getGreen(), c[ColorDirection.EAST.value].getBlue(), c[ColorDirection.EAST.value].getAlpha());
-	}
-	
-	
-	
-	
-	
-	
-	/**
-	 * Determine the color for each side of this LOD.
-	 */
-	private Color[] generateLodColors(LodChunk lod, boolean debugging)
-	{
-		Color[] colors = new Color[ColorDirection.values().length];
-		
-		if (!debugging)
-		{
-			// if NOT debugging, look to the config to determine
-			// how this LOD should be colored
-			switch (LodConfig.CLIENT.lodColorStyle.get())
-			{
-			case TOP:
-				// only add the top's color to the array
-				for(ColorDirection dir : ColorDirection.values())
-					colors[dir.value] = lod.getColor(ColorDirection.TOP);
-				break;
-				
-			case INDIVIDUAL_SIDES:
-				// add each direction's color to the array
-				for(ColorDirection dir : ColorDirection.values())
-					colors[dir.value] = lod.getColor(dir);
-				break;
-			}
-		}
-		else
-		{
-			// if debugging draw the squares as a black and white checker board
-			if ((lod.x + lod.z) % 2 == 0)
-				for(ColorDirection dir : ColorDirection.values())
-					// have each direction be the same
-					// color if debugging
-					colors[dir.value] = debugWhite;
-			else
-				for(ColorDirection dir : ColorDirection.values())
-					colors[dir.value] = debugBlack;
-		}
-		
-		return colors;
-	}
-	
-	
-
-}
@@ -1,27 +0,0 @@
-package com.seibel.lod.builders.lodTemplates;
-
-import com.seibel.lod.objects.LodChunk;
-import com.seibel.lod.objects.LodDimension;
-
-import net.minecraft.client.renderer.BufferBuilder;
-
-/**
- * TODO DynamicLodTemplate
- * Chunks smoothly transition between
- * each other, unless a neighboring chunk
- * is at a significantly different height.
- * 
- * @author James Seibel
- * @version 05-07-2021
- */
-public class DynamicLodTemplate extends AbstractLodTemplate
-{
-	@Override
-	public void addLodToBuffer(BufferBuilder buffer,
-			LodDimension lodDim, LodChunk lod, 
-			double xOffset, double yOffset, double zOffset, 
-			boolean debugging)
-	{
-		System.err.println("DynamicLodTemplate not implemented!");
-	}
-}
@@ -1,25 +0,0 @@
-package com.seibel.lod.builders.lodTemplates;
-
-import com.seibel.lod.objects.LodChunk;
-import com.seibel.lod.objects.LodDimension;
-
-import net.minecraft.client.renderer.BufferBuilder;
-
-/**
- * TODO TriangularLodTemplate
- * Builds each LOD chunk as a singular rectangular prism.
- * 
- * @author James Seibel
- * @version 05-07-2021
- */
-public class TriangularLodTemplate extends AbstractLodTemplate
-{
-	@Override
-	public void addLodToBuffer(BufferBuilder buffer,
-			LodDimension lodDim, LodChunk lod, 
-			double xOffset, double yOffset, double zOffset, 
-			boolean debugging)
-	{
-		System.err.println("DynamicLodTemplate not implemented!");
-	}
-}
@@ -0,0 +1,713 @@
+/*
+ *    This file is part of the Distant Horizon mod (formerly the LOD Mod),
+ *    licensed under the GNU GPL v3 License.
+ *
+ *    Copyright (C) 2020  James Seibel
+ *
+ *    This program is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, version 3.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.seibel.lod.builders.worldGeneration;
+
+import java.util.ConcurrentModificationException;
+import java.util.HashSet;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+import java.util.function.Supplier;
+
+import com.google.common.util.concurrent.ThreadFactoryBuilder;
+import com.seibel.lod.builders.lodBuilding.LodBuilder;
+import com.seibel.lod.builders.lodBuilding.LodBuilderConfig;
+import com.seibel.lod.config.LodConfig;
+import com.seibel.lod.enums.DistanceGenerationMode;
+import com.seibel.lod.objects.LodDimension;
+import com.seibel.lod.proxy.ClientProxy;
+import com.seibel.lod.util.LodUtil;
+
+import net.minecraft.block.Block;
+import net.minecraft.block.BlockState;
+import net.minecraft.util.math.ChunkPos;
+import net.minecraft.util.palette.UpgradeData;
+import net.minecraft.util.registry.Registry;
+import net.minecraft.world.biome.Biome;
+import net.minecraft.world.chunk.ChunkPrimer;
+import net.minecraft.world.chunk.ChunkStatus;
+import net.minecraft.world.chunk.IChunk;
+import net.minecraft.world.gen.ChunkGenerator;
+import net.minecraft.world.gen.Heightmap;
+import net.minecraft.world.gen.blockstateprovider.WeightedBlockStateProvider;
+import net.minecraft.world.gen.feature.BlockClusterFeatureConfig;
+import net.minecraft.world.gen.feature.ConfiguredFeature;
+import net.minecraft.world.gen.feature.DecoratedFeatureConfig;
+import net.minecraft.world.gen.feature.FeatureSpread;
+import net.minecraft.world.gen.feature.FeatureSpreadConfig;
+import net.minecraft.world.gen.feature.IceAndSnowFeature;
+import net.minecraft.world.gen.feature.NoFeatureConfig;
+import net.minecraft.world.gen.feature.template.TemplateManager;
+import net.minecraft.world.gen.placement.ConfiguredPlacement;
+import net.minecraft.world.gen.placement.DecoratedPlacementConfig;
+import net.minecraft.world.gen.placement.IPlacementConfig;
+import net.minecraft.world.gen.placement.NoiseDependant;
+import net.minecraft.world.server.ServerChunkProvider;
+import net.minecraft.world.server.ServerWorld;
+import net.minecraft.world.server.ServerWorldLightManager;
+import net.minecraftforge.common.WorldWorkerManager.IWorker;
+
+/**
+ * This is used to generate a LodChunk at a given ChunkPos.
+ * 
+ * @author James Seibel
+ * @version 10-22-2021
+ */
+public class LodGenWorker implements IWorker
+{
+	public static ExecutorService genThreads = Executors.newFixedThreadPool(LodConfig.CLIENT.advancedModOptions.threading.numberOfWorldGenerationThreads.get(), new ThreadFactoryBuilder().setNameFormat("Gen-Worker-Thread-%d").build());
+	
+	private boolean threadStarted = false;
+	private final LodChunkGenThread thread;
+	
+	
+	/**
+	 * If a configured feature fails for whatever reason,
+	 * add it to this list, this is to hopefully remove any
+	 * features that could cause issues down the line.
+	 */
+	private static final ConcurrentHashMap<Integer, ConfiguredFeature<?, ?>> configuredFeaturesToAvoid = new ConcurrentHashMap<>();
+	
+	
+	
+	public LodGenWorker(ChunkPos newPos, DistanceGenerationMode newGenerationMode,
+			LodBuilder newLodBuilder,
+			LodDimension newLodDimension, ServerWorld newServerWorld)
+	{
+		// just a few sanity checks
+		if (newPos == null)
+			throw new IllegalArgumentException("LodChunkGenWorker must have a non-null ChunkPos");
+		
+		if (newLodBuilder == null)
+			throw new IllegalArgumentException("LodChunkGenThread requires a non-null LodChunkBuilder");
+		
+		if (newLodDimension == null)
+			throw new IllegalArgumentException("LodChunkGenThread requires a non-null LodDimension");
+		
+		if (newServerWorld == null)
+			throw new IllegalArgumentException("LodChunkGenThread requires a non-null ServerWorld");
+		
+		
+		
+		thread = new LodChunkGenThread(newPos, newGenerationMode,
+				newLodBuilder,
+				newLodDimension, newServerWorld);
+	}
+	
+	@Override
+	public boolean doWork()
+	{
+		if (!threadStarted)
+		{
+			if (LodConfig.CLIENT.worldGenerator.distanceGenerationMode.get() == DistanceGenerationMode.SERVER)
+			{
+				// if we are using SERVER generation that has to be done
+				// synchronously to prevent crashing and harmful
+				// interactions with the normal world generator
+				thread.run();
+			}
+			else
+			{
+				// Every other method can
+				// be done asynchronously
+				Thread newThread = new Thread(thread);
+				newThread.setPriority(5);
+				genThreads.execute(newThread);
+			}
+			
+			threadStarted = true;
+			
+			// useful for debugging
+//        	ClientProxy.LOGGER.info(thread.lodDim.getNumberOfLods());
+//        	ClientProxy.LOGGER.info(genThreads.toString());
+		}
+		
+		return false;
+	}
+	
+	@Override
+	public boolean hasWork()
+	{
+		return !threadStarted;
+	}
+	
+	
+	
+	
+	private static class LodChunkGenThread implements Runnable
+	{
+		public final ServerWorld serverWorld;
+		public final LodDimension lodDim;
+		public final DistanceGenerationMode generationMode;
+		public final LodBuilder lodBuilder;
+		
+		private final ChunkPos pos;
+		
+		public LodChunkGenThread(ChunkPos newPos, DistanceGenerationMode newGenerationMode,
+				LodBuilder newLodBuilder,
+				LodDimension newLodDimension, ServerWorld newServerWorld)
+		{
+			pos = newPos;
+			generationMode = newGenerationMode;
+			lodBuilder = newLodBuilder;
+			lodDim = newLodDimension;
+			serverWorld = newServerWorld;
+		}
+		
+		@Override
+		public void run()
+		{
+			try
+			{
+				// only generate LodChunks if they can
+				// be added to the current LodDimension
+				
+				/* TODO I must disable this 'if', if I will find a way to replace it */
+				if (lodDim.regionIsInRange(pos.x / LodUtil.REGION_WIDTH_IN_CHUNKS, pos.z / LodUtil.REGION_WIDTH_IN_CHUNKS))
+				{
+					//
+					//{
+					//	lodBuilder.generateLodNodeFromChunk(lodDim, loadedChunk, new LodBuilderConfig(DistanceGenerationMode.SERVER));
+					//}
+					//else
+					//{
+					/*
+					IChunk loadedChunk = null;
+					if (lodDim.isChunkPreGenerated(pos.x, pos.z) && LodConfig.CLIENT.worldGenerator.useExperimentalPreGenLoading.get())
+					{
+						// generate a Lod like normal
+						loadedChunk = ChunkLoader.getChunkFromFile(pos);
+						if(loadedChunk != null)
+							lodBuilder.generateLodNodeFromChunk(lodDim, loadedChunk, new LodBuilderConfig(DistanceGenerationMode.SERVER));
+						else
+						{
+							switch (generationMode)
+							{
+							case NONE:
+								// don't generate
+								break;
+							case BIOME_ONLY:
+							case BIOME_ONLY_SIMULATE_HEIGHT:
+								// fastest
+								generateUsingBiomesOnly();
+								break;
+							case SURFACE:
+								// faster
+								generateUsingSurface();
+								break;
+							case FEATURES:
+								// fast
+								generateUsingFeatures();
+								break;
+							case SERVER:
+								// very slow
+								lodBuilder.generateLodNodeFromChunk(lodDim, serverWorld.getChunk(pos.x, pos.z, ChunkStatus.FEATURES), new LodBuilderConfig(DistanceGenerationMode.SERVER));
+								//generateWithServer();
+								break;
+							}
+						}
+					}
+					else
+					{*/
+						switch (generationMode)
+						{
+						case NONE:
+							// don't generate
+							break;
+						case BIOME_ONLY:
+						case BIOME_ONLY_SIMULATE_HEIGHT:
+							// fastest
+							generateUsingBiomesOnly();
+							break;
+						case SURFACE:
+							// faster
+							generateUsingSurface();
+							break;
+						case FEATURES:
+							// fast
+							generateUsingFeatures();
+							break;
+						case SERVER:
+							// very slow
+							generateWithServer();
+							break;
+						}
+					//}
+					
+					//lodRenderer.regenerateLODsNextFrame();
+					
+/*
+					boolean dataExistence = lodDim.doesDataExist(new LevelPos((byte) 3, pos.x, pos.z));
+					if (dataExistence)
+						ClientProxy.LOGGER.info(pos.x + " " + pos.z + " Success!");
+					else
+						ClientProxy.LOGGER.info(pos.x + " " + pos.z);
+ */
+					// shows the pool size, active threads, queued tasks and completed tasks
+//					ClientProxy.LOGGER.info(genThreads.toString());
+
+//					long endTime = System.currentTimeMillis();
+//					System.out.println(endTime - startTime);
+					
+				}// if in range
+			}
+			catch (Exception e)
+			{
+				ClientProxy.LOGGER.error(LodChunkGenThread.class.getSimpleName() + ": ran into an error: " + e.getMessage());
+				e.printStackTrace();
+			}
+			finally
+			{
+				// decrement how many threads are running
+				LodWorldGenerator.INSTANCE.numberOfChunksWaitingToGenerate.addAndGet(-1);
+				
+				// this position is no longer being generated
+				LodWorldGenerator.INSTANCE.positionsWaitingToBeGenerated.remove(pos);
+			}
+			
+		}// run
+		
+		
+		
+		/**
+		 * takes about 2-5 ms
+		 */
+		private void generateUsingBiomesOnly()
+		{
+			List<IChunk> chunkList = new LinkedList<>();
+			ChunkPrimer chunk = new ChunkPrimer(pos, UpgradeData.EMPTY);
+			chunkList.add(chunk);
+			
+			ServerChunkProvider chunkSource = serverWorld.getChunkSource();
+			ChunkGenerator chunkGen = chunkSource.generator;
+			
+			// generate the terrain (this is thread safe)
+			ChunkStatus.EMPTY.generate(serverWorld, chunkGen, serverWorld.getStructureManager(), (ServerWorldLightManager) serverWorld.getLightEngine(), null, chunkList);
+			// override the chunk status, so we can run the next generator stage
+			chunk.setStatus(ChunkStatus.STRUCTURE_REFERENCES);
+			chunkGen.createBiomes(serverWorld.registryAccess().registryOrThrow(Registry.BIOME_REGISTRY), chunk);
+			chunk.setStatus(ChunkStatus.STRUCTURE_REFERENCES);
+			
+			
+			
+			
+			// generate fake height data for this LOD
+			int seaLevel = serverWorld.getSeaLevel();
+			
+			boolean simulateHeight = generationMode == DistanceGenerationMode.BIOME_ONLY_SIMULATE_HEIGHT;
+			boolean inTheEnd = false;
+			
+			// add fake heightmap data so our LODs aren't at height 0
+			Heightmap heightmap = new Heightmap(chunk, LodUtil.DEFAULT_HEIGHTMAP);
+			for (int x = 0; x < LodUtil.CHUNK_WIDTH && !inTheEnd; x++)
+			{
+				for (int z = 0; z < LodUtil.CHUNK_WIDTH && !inTheEnd; z++)
+				{
+					if (simulateHeight)
+					{
+						// these heights are of course aren't super accurate,
+						// they are just to simulate height data where there isn't any
+						switch (chunk.getBiomes().getNoiseBiome(x >> 2, seaLevel >> 2, z >> 2).getBiomeCategory())
+						{
+						case NETHER:
+							heightmap.setHeight(x, z, serverWorld.getHeight() / 2);
+							break;
+						
+						case EXTREME_HILLS:
+							heightmap.setHeight(x, z, seaLevel + 30);
+							break;
+						case MESA:
+							heightmap.setHeight(x, z, seaLevel + 20);
+							break;
+						case JUNGLE:
+							heightmap.setHeight(x, z, seaLevel + 20);
+							break;
+						case BEACH:
+							heightmap.setHeight(x, z, seaLevel + 5);
+							break;
+						case NONE:
+							heightmap.setHeight(x, z, 0);
+							break;
+						
+						case OCEAN:
+						case RIVER:
+							heightmap.setHeight(x, z, seaLevel);
+							break;
+						
+						case THEEND:
+							inTheEnd = true;
+							break;
+						
+						// DESERT
+						// FOREST
+						// ICY
+						// MUSHROOM
+						// SAVANNA
+						// SWAMP
+						// TAIGA
+						// PLAINS
+						default:
+							heightmap.setHeight(x, z, seaLevel + 10);
+							break;
+						}// heightmap switch
+					}
+					else
+					{
+						// we aren't simulating height
+						// always use sea level
+						heightmap.setHeight(x, z, seaLevel);
+					}
+				}// z
+			}// x
+			
+			chunk.setHeightmap(LodUtil.DEFAULT_HEIGHTMAP, heightmap.getRawData());
+			
+			
+			if (!inTheEnd)
+			{
+				lodBuilder.generateLodNodeFromChunk(lodDim, chunk, new LodBuilderConfig(true, true, false));
+			}
+			else
+			{
+				// if we are in the end, don't generate any chunks.
+				// Since we don't know where the islands are, everything
+				// generates the same, and it looks awful.
+				//TODO it appears that 'if' can be collapsed, but comment says that it should not be a case
+				lodBuilder.generateLodNodeFromChunk(lodDim, chunk, new LodBuilderConfig(true, true, false));
+			}
+
+
+//			long startTime = System.currentTimeMillis();
+//			long endTime = System.currentTimeMillis();
+//			System.out.println(endTime - startTime);
+		}
+		
+		
+		/**
+		 * takes about 10 - 20 ms
+		 */
+		private void generateUsingSurface()
+		{
+			List<IChunk> chunkList = new LinkedList<>();
+			ChunkPrimer chunk = new ChunkPrimer(pos, UpgradeData.EMPTY);
+			chunkList.add(chunk);
+			LodServerWorld lodServerWorld = new LodServerWorld(serverWorld, chunk);
+			
+			ServerChunkProvider chunkSource = serverWorld.getChunkSource();
+			ServerWorldLightManager lightEngine = (ServerWorldLightManager) serverWorld.getLightEngine();
+			TemplateManager templateManager = serverWorld.getStructureManager();
+			ChunkGenerator chunkGen = chunkSource.generator;
+			
+			
+			// generate the terrain (this is thread safe)
+			ChunkStatus.EMPTY.generate(serverWorld, chunkGen, templateManager, lightEngine, null, chunkList);
+			// override the chunk status, so we can run the next generator stage
+			chunk.setStatus(ChunkStatus.STRUCTURE_REFERENCES);
+			chunkGen.createBiomes(serverWorld.registryAccess().registryOrThrow(Registry.BIOME_REGISTRY), chunk);
+			ChunkStatus.NOISE.generate(serverWorld, chunkGen, templateManager, lightEngine, null, chunkList);
+			ChunkStatus.SURFACE.generate(serverWorld, chunkGen, templateManager, lightEngine, null, chunkList);
+			
+			// this feature has been proven to be thread safe,
+			// so we will add it
+			IceAndSnowFeature snowFeature = new IceAndSnowFeature(NoFeatureConfig.CODEC);
+			snowFeature.place(lodServerWorld, chunkGen, serverWorld.random, chunk.getPos().getWorldPosition(), null);
+			
+			
+			lodBuilder.generateLodNodeFromChunk(lodDim, chunk, new LodBuilderConfig(DistanceGenerationMode.SURFACE));
+			
+			/*TODO if we want to use Biome utils and terrain utils for overworld
+			 * lodBuilder.generateLodNodeFromChunk(lodDim, pos ,detailLevel, serverWorld.getSeed());*/
+		}
+		
+		
+		/**
+		 * takes about 15 - 20 ms
+		 * <p>
+		 * Causes concurrentModification Exceptions,
+		 * which could cause instability or world generation bugs
+		 */
+		private void generateUsingFeatures()
+		{
+			List<IChunk> chunkList = new LinkedList<>();
+			ChunkPrimer chunk = new ChunkPrimer(pos, UpgradeData.EMPTY);
+			chunkList.add(chunk);
+			LodServerWorld lodServerWorld = new LodServerWorld(serverWorld, chunk);
+			
+			ServerChunkProvider chunkSource = serverWorld.getChunkSource();
+			ServerWorldLightManager lightEngine = (ServerWorldLightManager) serverWorld.getLightEngine();
+			TemplateManager templateManager = serverWorld.getStructureManager();
+			ChunkGenerator chunkGen = chunkSource.generator;
+			
+			
+			// generate the terrain (this is thread safe)
+			ChunkStatus.EMPTY.generate(serverWorld, chunkGen, templateManager, lightEngine, null, chunkList);
+			// override the chunk status, so we can run the next generator stage
+			chunk.setStatus(ChunkStatus.STRUCTURE_REFERENCES);
+			chunkGen.createBiomes(serverWorld.registryAccess().registryOrThrow(Registry.BIOME_REGISTRY), chunk);
+			ChunkStatus.NOISE.generate(serverWorld, chunkGen, templateManager, lightEngine, null, chunkList);
+			ChunkStatus.SURFACE.generate(serverWorld, chunkGen, templateManager, lightEngine, null, chunkList);
+			
+			
+			// get all the biomes in the chunk
+			HashSet<Biome> biomes = new HashSet<>();
+			for (int x = 0; x < LodUtil.CHUNK_WIDTH; x++)
+			{
+				for (int z = 0; z < LodUtil.CHUNK_WIDTH; z++)
+				{
+					Biome biome = chunk.getBiomes().getNoiseBiome(x >> 2, serverWorld.getSeaLevel() >> 2, z >> 2);
+					
+					// Issue #35
+					// For some reason Jungle biomes cause incredible lag
+					// the features here must be interacting with each other
+					// in unpredictable ways (specifically tree feature generation).
+					// When generating Features my CPU usage generally hovers around 30 - 40%
+					// when generating Jungles it spikes to 100%.
+					if (biome.getBiomeCategory() != Biome.Category.JUNGLE)
+					{
+						// should probably use the heightmap here instead of seaLevel,
+						// but this seems to get the job done well enough
+						biomes.add(biome);
+					}
+				}
+			}
+			
+			boolean allowUnstableFeatures = LodConfig.CLIENT.worldGenerator.allowUnstableFeatureGeneration.get();
+			
+			// generate all the features related to this chunk.
+			// this may or may not be thread safe
+			for (Biome biome : biomes)
+			{
+				List<List<Supplier<ConfiguredFeature<?, ?>>>> featuresForState = biome.generationSettings.features();
+				
+				for (List<Supplier<ConfiguredFeature<?, ?>>> suppliers : featuresForState)
+				{
+					for (Supplier<ConfiguredFeature<?, ?>> featureSupplier : suppliers)
+					{
+						ConfiguredFeature<?, ?> configuredFeature = featureSupplier.get();
+						
+						if (!allowUnstableFeatures &&
+									configuredFeaturesToAvoid.containsKey(configuredFeature.hashCode()))
+							continue;
+						
+						
+						try
+						{
+							configuredFeature.place(lodServerWorld, chunkGen, serverWorld.random, chunk.getPos().getWorldPosition());
+						}
+						catch (ConcurrentModificationException e)
+						{
+							// This will happen. I'm not sure what to do about it
+							// except pray that it doesn't affect the normal world generation
+							// in any harmful way.
+							// Update: this can cause crashes and high CPU usage.
+							
+							// Issue #35
+							// I tried cloning the config for each feature, but that
+							// path was blocked since I can't clone lambda methods.
+							// I tried using a deep cloning library and discovered
+							// the problem there.
+							// ( https://github.com/kostaskougios/cloning
+							//   and
+							//   https://github.com/EsotericSoftware/kryo )
+							
+							if (!allowUnstableFeatures)
+								configuredFeaturesToAvoid.put(configuredFeature.hashCode(), configuredFeature);
+//							ClientProxy.LOGGER.info(configuredFeaturesToAvoid.mappingCount());
+						}
+						catch (UnsupportedOperationException e)
+						{
+							// This will happen when the LodServerWorld
+							// isn't able to return something that a feature
+							// generator needs
+							
+							if (!allowUnstableFeatures)
+								configuredFeaturesToAvoid.put(configuredFeature.hashCode(), configuredFeature);
+//							ClientProxy.LOGGER.info(configuredFeaturesToAvoid.mappingCount());
+						}
+						catch (Exception e)
+						{
+							// I'm not sure what happened, print to the log
+							
+							e.printStackTrace();
+							
+							if (!allowUnstableFeatures)
+								configuredFeaturesToAvoid.put(configuredFeature.hashCode(), configuredFeature);
+//							ClientProxy.LOGGER.info(configuredFeaturesToAvoid.mappingCount());
+						}
+					}
+				}
+			}
+			
+			// generate a Lod like normal
+			lodBuilder.generateLodNodeFromChunk(lodDim, chunk, new LodBuilderConfig(DistanceGenerationMode.FEATURES));
+		}
+		
+		
+		/**
+		 * on pre generated chunks 0 - 1 ms
+		 * on un generated chunks 0 - 50 ms
+		 * with the median seeming to hover around 15 - 30 ms
+		 * and outliers in the 100 - 200 ms range
+		 * <p>
+		 * Note this should not be multithreaded and does cause server/simulation lag
+		 * (Higher lag for generating than loading)
+		 */
+		private void generateWithServer()
+		{
+			lodBuilder.generateLodNodeFromChunk(lodDim, serverWorld.getChunk(pos.x, pos.z, ChunkStatus.FEATURES), new LodBuilderConfig(DistanceGenerationMode.SERVER));
+		}
+		
+		
+		
+		
+		
+		
+		//================//
+		// Unused methods //
+		//================//
+		
+		// Sadly I wasn't able to get these to work,
+		// they are here for documentation purposes
+		
+		@SuppressWarnings({ "rawtypes", "unchecked", "unused" })
+		private DecoratedFeatureConfig cloneDecoratedFeatureConfig(DecoratedFeatureConfig config)
+		{
+			IPlacementConfig placementConfig;
+			
+			Class oldConfigClass = config.decorator.config().getClass();
+			
+			if (oldConfigClass == FeatureSpreadConfig.class)
+			{
+				FeatureSpreadConfig oldPlacementConfig = (FeatureSpreadConfig) config.decorator.config();
+				FeatureSpread oldSpread = oldPlacementConfig.count();
+				
+				placementConfig = new FeatureSpreadConfig(oldSpread);
+			}
+			else if (oldConfigClass == DecoratedPlacementConfig.class)
+			{
+				DecoratedPlacementConfig oldPlacementConfig = (DecoratedPlacementConfig) config.decorator.config();
+				placementConfig = new DecoratedPlacementConfig(oldPlacementConfig.inner(), oldPlacementConfig.outer());
+			}
+			else if (oldConfigClass == NoiseDependant.class)
+			{
+				NoiseDependant oldPlacementConfig = (NoiseDependant) config.decorator.config();
+				placementConfig = new NoiseDependant(oldPlacementConfig.noiseLevel, oldPlacementConfig.belowNoise, oldPlacementConfig.aboveNoise);
+			}
+			else
+			{
+//				ClientProxy.LOGGER.debug("unknown decorated placement config: \"" + config.decorator.config().getClass() + "\"");
+				return config;
+			}
+			
+			
+			ConfiguredPlacement<?> newPlacement = new ConfiguredPlacement(config.decorator.decorator, placementConfig);
+			return new DecoratedFeatureConfig(config.feature, newPlacement);
+		}
+		
+		
+		@SuppressWarnings("unused")
+		private BlockClusterFeatureConfig cloneBlockClusterFeatureConfig(BlockClusterFeatureConfig config)
+		{
+			WeightedBlockStateProvider provider = new WeightedBlockStateProvider();
+			provider.weightedList.entries.addAll(((WeightedBlockStateProvider) config.stateProvider).weightedList.entries);
+			
+			HashSet<Block> whitelist = new HashSet<>(config.whitelist);
+			
+			HashSet<BlockState> blacklist = new HashSet<>(config.blacklist);
+			
+			
+			BlockClusterFeatureConfig.Builder builder = new BlockClusterFeatureConfig.Builder(provider, config.blockPlacer);
+			builder.whitelist(whitelist);
+			builder.blacklist(blacklist);
+			builder.xspread(config.xspread);
+			builder.yspread(config.yspread);
+			builder.zspread(config.zspread);
+			if (config.canReplace)
+			{
+				builder.canReplace();
+			}
+			if (config.needWater)
+			{
+				builder.needWater();
+			}
+			if (config.project)
+			{
+				builder.noProjection();
+			}
+			builder.tries(config.tries);
+			
+			
+			return builder.build();
+		}
+		
+	}
+	
+	
+	/**
+	 * Stops the current genThreads if they are running
+	 * and then recreates the Executor service. <br><br>
+	 * <p>
+	 * This is done to clear any outstanding tasks
+	 * that may exist after the player leaves their current world.
+	 * If this isn't done unfinished tasks may be left in the queue
+	 * preventing new LodChunks form being generated.
+	 */
+	public static void restartExecutorService()
+	{
+		if (genThreads != null && !genThreads.isShutdown())
+		{
+			genThreads.shutdownNow();
+		}
+		genThreads = Executors.newFixedThreadPool(LodConfig.CLIENT.advancedModOptions.threading.numberOfWorldGenerationThreads.get(), new ThreadFactoryBuilder().setNameFormat("Gen-Worker-Thread-%d").build());
+	}
+	
+	
+	
+	
+	
+	/*
+	 * performance/generation tests related to
+	 * serverWorld.getChunk(x, z, ChunkStatus. *** )
+
+     true/false is whether they generated blocks or not
+     the time is how long it took to generate
+
+     ChunkStatus.EMPTY					0  - 1  ms	false	(empty, what did you expect? :P)
+     ChunkStatus.STRUCTURE_REFERENCES	1  - 2  ms  false	(no height, only generates some chunks)
+     ChunkStatus.BIOMES 				1  - 10 ms	false	(no height)
+     ChunkStatus.NOISE					4  - 15 ms	true	(all blocks are stone)
+     ChunkStatus.LIQUID_CARVERS			6  - 12 ms	true	(no snow/trees, just grass)
+     ChunkStatus.SURFACE				5  - 15 ms	true	(no snow/trees, just grass)
+     ChunkStatus.CARVERS				5  - 30 ms	true	(no snow/trees, just grass)
+     ChunkStatus.FEATURES				7  - 25 ms	true
+     ChunkStatus.HEIGHTMAPS 			20 - 40 ms	true
+     ChunkStatus.LIGHT					20 - 40 ms	true
+     ChunkStatus.FULL 					30 - 50 ms	true
+     ChunkStatus.SPAWN			   		50 - 80 ms	true
+
+
+     At this point I would suggest using FEATURES, as it generates snow and trees
+     (and any other object that is needed to make biomes distinct)
+
+     Otherwise, if snow/trees aren't necessary SURFACE is the next fastest (although not by much)
+	 */
+}
@@ -0,0 +1,331 @@
+/*
+ *    This file is part of the Distant Horizon mod (formerly the LOD Mod),
+ *    licensed under the GNU GPL v3 License.
+ *
+ *    Copyright (C) 2020  James Seibel
+ *
+ *    This program is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, version 3.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.seibel.lod.builders.worldGeneration;
+
+import java.util.HashMap;
+import java.util.List;
+import java.util.Random;
+import java.util.function.Predicate;
+import java.util.stream.Stream;
+
+import com.seibel.lod.util.LodUtil;
+
+import net.minecraft.block.Block;
+import net.minecraft.block.BlockState;
+import net.minecraft.entity.Entity;
+import net.minecraft.entity.player.PlayerEntity;
+import net.minecraft.fluid.Fluid;
+import net.minecraft.fluid.FluidState;
+import net.minecraft.particles.IParticleData;
+import net.minecraft.tileentity.TileEntity;
+import net.minecraft.util.Direction;
+import net.minecraft.util.SoundCategory;
+import net.minecraft.util.SoundEvent;
+import net.minecraft.util.math.AxisAlignedBB;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.util.math.SectionPos;
+import net.minecraft.util.registry.DynamicRegistries;
+import net.minecraft.world.DifficultyInstance;
+import net.minecraft.world.DimensionType;
+import net.minecraft.world.EmptyTickList;
+import net.minecraft.world.ISeedReader;
+import net.minecraft.world.ITickList;
+import net.minecraft.world.biome.Biome;
+import net.minecraft.world.biome.BiomeManager;
+import net.minecraft.world.border.WorldBorder;
+import net.minecraft.world.chunk.AbstractChunkProvider;
+import net.minecraft.world.chunk.ChunkStatus;
+import net.minecraft.world.chunk.IChunk;
+import net.minecraft.world.gen.Heightmap;
+import net.minecraft.world.gen.Heightmap.Type;
+import net.minecraft.world.gen.feature.structure.Structure;
+import net.minecraft.world.gen.feature.structure.StructureStart;
+import net.minecraft.world.lighting.WorldLightManager;
+import net.minecraft.world.server.ServerWorld;
+import net.minecraft.world.storage.IWorldInfo;
+
+
+/**
+ * This is a fake ServerWorld used when generating features.
+ * This allows us to keep each LodChunk generation independent
+ * of the actual ServerWorld, allowing us
+ * to multithread generation.
+ * @author James Seibel
+ * @version 7-26-2021
+ */
+public class LodServerWorld implements ISeedReader
+{
+	
+	public HashMap<Heightmap.Type, Heightmap> heightmaps = new HashMap<>();
+	
+	public final IChunk chunk;
+	
+	public final ServerWorld serverWorld;
+	
+	public LodServerWorld(ServerWorld newServerWorld, IChunk newChunk)
+	{
+		chunk = newChunk;
+		serverWorld = newServerWorld;
+	}
+	
+	
+	@Override
+	public int getHeight(Type heightmapType, int x, int z)
+	{
+		// make sure the block position is set relative to the chunk
+		x = x % LodUtil.CHUNK_WIDTH;
+		x = (x < 0) ? x + 16 : x;
+		
+		z = z % LodUtil.CHUNK_WIDTH;
+		z = (z < 0) ? z + 16 : z;
+		
+		return chunk.getOrCreateHeightmapUnprimed(LodUtil.DEFAULT_HEIGHTMAP).getFirstAvailable(x, z);
+	}
+	
+	@Override
+	public Biome getBiome(BlockPos pos)
+	{
+		return chunk.getBiomes().getNoiseBiome(pos.getX() >> 2, pos.getY() >> 2, pos.getZ() >> 2);
+	}
+	
+	@Override
+	public boolean setBlock(BlockPos pos, BlockState state, int flags, int recursionLeft)
+	{
+		return chunk.setBlockState(pos, state, false) == state;
+	}
+	
+	@Override
+	public BlockState getBlockState(BlockPos pos)
+	{
+		return chunk.getBlockState(pos);
+	}
+	
+	@Override
+	public FluidState getFluidState(BlockPos pos)
+	{
+		return chunk.getFluidState(pos);
+	}
+	
+	
+	@Override
+	public boolean isStateAtPosition(BlockPos pos, Predicate<BlockState> state)
+	{
+		return state.test(chunk.getBlockState(pos));
+	}
+	
+	@Override
+	public ITickList<Block> getBlockTicks()
+	{
+		return EmptyTickList.empty();
+	}
+	
+	@Override
+	public IChunk getChunk(int x, int z, ChunkStatus requiredStatus, boolean nonnull)
+	{
+		return chunk;
+	}
+	
+	@Override
+	public Stream<? extends StructureStart<?>> startsForFeature(SectionPos p_241827_1_, Structure<?> p_241827_2_)
+	{
+		return serverWorld.startsForFeature(p_241827_1_, p_241827_2_);
+	}
+	
+	@Override
+	public ITickList<Fluid> getLiquidTicks()
+	{
+		return EmptyTickList.empty();
+	}
+	
+	@Override
+	public WorldLightManager getLightEngine()
+	{
+		return new WorldLightManager(null, false, false);
+	}
+	
+	@Override
+	public long getSeed()
+	{
+		return serverWorld.getSeed();
+	}
+	
+	@Override
+	public DynamicRegistries registryAccess()
+	{
+		return serverWorld.registryAccess();
+	}
+	
+	
+	/**
+	 * All methods below shouldn't be needed
+	 * and thus have been left unimplemented.
+	 */
+	
+	
+	@Override
+	public Random getRandom()
+	{
+		throw new UnsupportedOperationException("Not Implemented");
+	}
+	
+	@Override
+	public void playSound(PlayerEntity player, BlockPos pos, SoundEvent soundIn, SoundCategory category, float volume,
+			float pitch)
+	{
+		throw new UnsupportedOperationException("Not Implemented");
+	}
+	
+	@Override
+	public void addParticle(IParticleData particleData, double x, double y, double z, double xSpeed, double ySpeed,
+			double zSpeed)
+	{
+		throw new UnsupportedOperationException("Not Implemented");
+	}
+	
+	@Override
+	public BiomeManager getBiomeManager()
+	{
+		throw new UnsupportedOperationException("Not Implemented");
+	}
+	
+	@Override
+	public int getSeaLevel()
+	{
+		throw new UnsupportedOperationException("Not Implemented");
+	}
+	
+	@Override
+	public float getShade(Direction p_230487_1_, boolean p_230487_2_)
+	{
+		throw new UnsupportedOperationException("Not Implemented");
+	}
+	
+	@Override
+	public WorldBorder getWorldBorder()
+	{
+		throw new UnsupportedOperationException("Not Implemented");
+	}
+	
+	@Override
+	public boolean removeBlock(BlockPos pos, boolean isMoving)
+	{
+		throw new UnsupportedOperationException("Not Implemented");
+	}
+	
+	@Override
+	public boolean destroyBlock(BlockPos pos, boolean dropBlock, Entity entity, int recursionLeft)
+	{
+		throw new UnsupportedOperationException("Not Implemented");
+	}
+	
+	
+	@Override
+	public ServerWorld getLevel()
+	{
+		throw new UnsupportedOperationException("Not Implemented");
+	}
+	
+	
+	@Override
+	public AbstractChunkProvider getChunkSource()
+	{
+		throw new UnsupportedOperationException("Not Implemented");
+	}
+	
+	
+	@Override
+	public DifficultyInstance getCurrentDifficultyAt(BlockPos arg0)
+	{
+		throw new UnsupportedOperationException("Not Implemented");
+	}
+	
+	
+	@Override
+	public IWorldInfo getLevelData()
+	{
+		throw new UnsupportedOperationException("Not Implemented");
+	}
+	
+	
+	@Override
+	public void levelEvent(PlayerEntity arg0, int arg1, BlockPos arg2, int arg3)
+	{
+		throw new UnsupportedOperationException("Not Implemented");
+		
+	}
+	
+	
+	@Override
+	public List<Entity> getEntities(Entity arg0, AxisAlignedBB arg1, Predicate<? super Entity> arg2)
+	{
+		throw new UnsupportedOperationException("Not Implemented");
+	}
+	
+	
+	@Override
+	public <T extends Entity> List<T> getEntitiesOfClass(Class<? extends T> arg0, AxisAlignedBB arg1,
+			Predicate<? super T> arg2)
+	{
+		throw new UnsupportedOperationException("Not Implemented");
+	}
+	
+	
+	@Override
+	public List<? extends PlayerEntity> players()
+	{
+		throw new UnsupportedOperationException("Not Implemented");
+	}
+	
+	
+	@Override
+	public int getSkyDarken()
+	{
+		throw new UnsupportedOperationException("Not Implemented");
+	}
+	
+	
+	@Override
+	public Biome getUncachedNoiseBiome(int p_225604_1_, int p_225604_2_, int p_225604_3_)
+	{
+		throw new UnsupportedOperationException("Not Implemented");
+	}
+	
+	
+	@Override
+	public boolean isClientSide()
+	{
+		throw new UnsupportedOperationException("Not Implemented");
+	}
+	
+	
+	@Override
+	public DimensionType dimensionType()
+	{
+		throw new UnsupportedOperationException("Not Implemented");
+	}
+	
+	
+	@Override
+	public TileEntity getBlockEntity(BlockPos p_175625_1_)
+	{
+		throw new UnsupportedOperationException("Not Implemented");
+	}
+	
+}
@@ -0,0 +1,204 @@
+/*
+ *    This file is part of the Distant Horizon mod (formerly the LOD Mod),
+ *    licensed under the GNU GPL v3 License.
+ *
+ *    Copyright (C) 2020  James Seibel
+ *
+ *    This program is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, version 3.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.seibel.lod.builders.worldGeneration;
+
+import java.util.HashSet;
+import java.util.Set;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+import java.util.concurrent.atomic.AtomicInteger;
+
+import com.seibel.lod.builders.lodBuilding.LodBuilder;
+import com.seibel.lod.config.LodConfig;
+import com.seibel.lod.enums.DistanceGenerationMode;
+import com.seibel.lod.objects.LodDimension;
+import com.seibel.lod.objects.PosToGenerateContainer;
+import com.seibel.lod.render.LodRenderer;
+import com.seibel.lod.util.DetailDistanceUtil;
+import com.seibel.lod.util.LevelPosUtil;
+import com.seibel.lod.util.LodThreadFactory;
+import com.seibel.lod.util.LodUtil;
+import com.seibel.lod.wrappers.MinecraftWrapper;
+
+import net.minecraft.util.math.ChunkPos;
+import net.minecraft.world.server.ServerWorld;
+import net.minecraftforge.common.WorldWorkerManager;
+
+/**
+ * A singleton that handles all long distance LOD world generation.
+ * @author James Seibel
+ * @version 9-25-2021
+ */
+public class LodWorldGenerator
+{
+	public final MinecraftWrapper mc = MinecraftWrapper.INSTANCE;
+	
+	/** This holds the thread used to generate new LODs off the main thread. */
+	private final ExecutorService mainGenThread = Executors.newSingleThreadExecutor(new LodThreadFactory(this.getClass().getSimpleName() + " world generator"));
+	
+	/** we only want to queue up one generator thread at a time */
+	private boolean generatorThreadRunning = false;
+	
+	/**
+	 * How many chunks to generate outside the player's view distance at one
+	 * time. (or more specifically how many requests to make at one time). I
+	 * multiply by 8 to make sure there is always a buffer of chunk requests, to
+	 * make sure the CPU is always busy, and we can generate LODs as quickly as
+	 * possible.
+	 */
+	public int maxChunkGenRequests;
+	
+	/**
+	 * This keeps track of how many chunk generation requests are on going. This is
+	 * to limit how many chunks are queued at once. To prevent chunks from being
+	 * generated for a long time in an area the player is no longer in.
+	 */
+	public final AtomicInteger numberOfChunksWaitingToGenerate = new AtomicInteger(0);
+	
+	public final Set<ChunkPos> positionsWaitingToBeGenerated = new HashSet<>();
+	
+	/**
+	 * Singleton copy of this object
+	 */
+	public static final LodWorldGenerator INSTANCE = new LodWorldGenerator();
+	
+	
+	private LodWorldGenerator()
+	{
+		
+	}
+	
+	/**
+	 * Queues up LodNodeGenWorkers for the given lodDimension.
+	 * @param renderer needed so the LodNodeGenWorkers can flag that the
+	 * buffers need to be rebuilt.
+	 */
+	public void queueGenerationRequests(LodDimension lodDim, LodRenderer renderer, LodBuilder lodBuilder)
+	{
+		if (LodConfig.CLIENT.worldGenerator.distanceGenerationMode.get() != DistanceGenerationMode.NONE
+				&& !generatorThreadRunning
+				&& mc.hasSinglePlayerServer())
+		{
+			// the thread is now running, don't queue up another thread
+			generatorThreadRunning = true;
+			
+			// just in case the config changed
+			maxChunkGenRequests = LodConfig.CLIENT.advancedModOptions.threading.numberOfWorldGenerationThreads.get() * 8;
+			
+			Thread generatorThread = new Thread(() ->
+			{
+				try
+				{
+					// round the player's block position down to the nearest chunk BlockPos
+					int playerPosX = mc.getPlayer().blockPosition().getX();
+					int playerPosZ = mc.getPlayer().blockPosition().getZ();
+					
+					
+					//=======================================//
+					// fill in positionsWaitingToBeGenerated //
+					//=======================================//
+					
+					ServerWorld serverWorld = LodUtil.getServerWorldFromDimension(lodDim.dimension);
+					
+					PosToGenerateContainer posToGenerate = lodDim.getPosToGenerate(
+							maxChunkGenRequests,
+							playerPosX,
+							playerPosZ);
+					
+					
+					byte detailLevel;
+					int posX;
+					int posZ;
+					int nearIndex = 0;
+					int farIndex = 0;
+					
+					for (int i = 0; i < posToGenerate.getNumberOfPos(); i++)
+					{
+						// I wish there was a way to compress this code, but I'm not aware of 
+						// an easy way to do so.
+						
+						// add the near positions
+						if (posToGenerate.getNthDetail(nearIndex, true) != 0 && nearIndex < posToGenerate.getNumberOfNearPos())
+						{
+							detailLevel = (byte) (posToGenerate.getNthDetail(nearIndex, true) - 1);
+							posX = posToGenerate.getNthPosX(nearIndex, true);
+							posZ = posToGenerate.getNthPosZ(nearIndex, true);
+							nearIndex++;
+							
+							ChunkPos chunkPos = new ChunkPos(LevelPosUtil.getChunkPos(detailLevel, posX), LevelPosUtil.getChunkPos(detailLevel, posZ));
+							
+							// prevent generating the same chunk multiple times
+							if (positionsWaitingToBeGenerated.contains(chunkPos))
+								continue;
+							
+							// don't add more to the generation queue then allowed
+							if (numberOfChunksWaitingToGenerate.get() >= maxChunkGenRequests)
+								break;
+							
+							positionsWaitingToBeGenerated.add(chunkPos);
+							numberOfChunksWaitingToGenerate.addAndGet(1);
+							LodGenWorker genWorker = new LodGenWorker(chunkPos, DetailDistanceUtil.getDistanceGenerationMode(detailLevel), lodBuilder, lodDim, serverWorld);
+							WorldWorkerManager.addWorker(genWorker);
+						}
+						
+						
+						// add the far positions
+						if (posToGenerate.getNthDetail(farIndex, false) != 0 && farIndex < posToGenerate.getNumberOfFarPos())
+						{
+							detailLevel = (byte) (posToGenerate.getNthDetail(farIndex, false) - 1);
+							posX = posToGenerate.getNthPosX(farIndex, false);
+							posZ = posToGenerate.getNthPosZ(farIndex, false);
+							farIndex++;
+							
+							ChunkPos chunkPos = new ChunkPos(LevelPosUtil.getChunkPos(detailLevel, posX), LevelPosUtil.getChunkPos(detailLevel, posZ));
+							
+							// don't add more to the generation queue then allowed
+							if (numberOfChunksWaitingToGenerate.get() >= maxChunkGenRequests)
+								continue;
+							//break;
+							
+							// prevent generating the same chunk multiple times
+							if (positionsWaitingToBeGenerated.contains(chunkPos))
+								continue;
+							
+							positionsWaitingToBeGenerated.add(chunkPos);
+							numberOfChunksWaitingToGenerate.addAndGet(1);
+							LodGenWorker genWorker = new LodGenWorker(chunkPos, DetailDistanceUtil.getDistanceGenerationMode(detailLevel), lodBuilder, lodDim, serverWorld);
+							WorldWorkerManager.addWorker(genWorker);
+						}
+					}
+					
+				}
+				catch (Exception e)
+				{
+					// this shouldn't ever happen, but just in case
+					e.printStackTrace();
+				}
+				finally
+				{
+					generatorThreadRunning = false;
+				}
+			});
+			
+			mainGenThread.execute(generatorThread);
+		} // if distanceGenerationMode != DistanceGenerationMode.NONE && !generatorThreadRunning
+	} // queueGenerationRequests
+	
+}
@@ -0,0 +1,552 @@
+/*
+ *    This file is part of the Distant Horizon mod (formerly the LOD Mod),
+ *    licensed under the GNU GPL v3 License.
+ *
+ *    Copyright (C) 2020  James Seibel
+ *
+ *    This program is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, version 3.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.seibel.lod.config;
+
+import java.nio.file.Path;
+import java.nio.file.Paths;
+
+import org.apache.commons.lang3.tuple.Pair;
+import org.apache.logging.log4j.LogManager;
+
+import com.electronwill.nightconfig.core.file.CommentedFileConfig;
+import com.electronwill.nightconfig.core.io.WritingMode;
+import com.seibel.lod.ModInfo;
+import com.seibel.lod.enums.BlockToAvoid;
+import com.seibel.lod.enums.BufferRebuildTimes;
+import com.seibel.lod.enums.DebugMode;
+import com.seibel.lod.enums.DistanceGenerationMode;
+import com.seibel.lod.enums.FogDistance;
+import com.seibel.lod.enums.FogDrawOverride;
+import com.seibel.lod.enums.GenerationPriority;
+import com.seibel.lod.enums.HorizontalQuality;
+import com.seibel.lod.enums.HorizontalResolution;
+import com.seibel.lod.enums.HorizontalScale;
+import com.seibel.lod.enums.LodTemplate;
+import com.seibel.lod.enums.VanillaOverdraw;
+import com.seibel.lod.enums.VerticalQuality;
+import com.seibel.lod.util.LodUtil;
+
+import net.minecraftforge.common.ForgeConfigSpec;
+import net.minecraftforge.eventbus.api.SubscribeEvent;
+import net.minecraftforge.fml.common.Mod;
+import net.minecraftforge.fml.config.ModConfig;
+
+/**
+ * This handles any configuration the user has access to.
+ * @author James Seibel
+ * @version 10-19-2021
+ */
+@Mod.EventBusSubscriber
+public class LodConfig
+{
+	// CONFIG STRUCTURE
+	// 	-> Client
+	//		|
+	//		|-> Graphics
+	//		|		|-> QualityOption
+	//		|		|-> FogQualityOption
+	//		|		|-> AdvancedGraphicsOption
+	//		|
+	//		|-> World Generation
+	//		|
+	//		|-> Advanced Mod Option
+	//				|-> Threads
+	//				|-> Buffers
+	//				|-> Debugging
+	
+	
+	
+	public static class Client
+	{
+		public final Graphics graphics;
+		public final WorldGenerator worldGenerator;
+		public final AdvancedModOptions advancedModOptions;
+		
+		
+		//================//
+		// Client Configs //
+		//================//
+		public Client(ForgeConfigSpec.Builder builder)
+		{
+			builder.push(this.getClass().getSimpleName());
+			{
+				graphics = new Graphics(builder);
+				worldGenerator = new WorldGenerator(builder);
+				advancedModOptions = new AdvancedModOptions(builder);
+			}
+			builder.pop();
+		}
+		
+		
+		//==================//
+		// Graphics Configs //
+		//==================//
+		public static class Graphics
+		{
+			
+			public final QualityOption qualityOption;
+			public final FogQualityOption fogQualityOption;
+			public final AdvancedGraphicsOption advancedGraphicsOption;
+			
+			Graphics(ForgeConfigSpec.Builder builder)
+			{
+				builder.comment("These settings control how the mod will look in game").push("Graphics");
+				{
+					qualityOption = new QualityOption(builder);
+					advancedGraphicsOption = new AdvancedGraphicsOption(builder);
+					fogQualityOption = new FogQualityOption(builder);
+				}
+				builder.pop();
+			}
+			
+			
+			public static class QualityOption
+			{
+				public final ForgeConfigSpec.EnumValue<HorizontalResolution> drawResolution;
+				
+				public final ForgeConfigSpec.IntValue lodChunkRenderDistance;
+				
+				public final ForgeConfigSpec.EnumValue<VerticalQuality> verticalQuality;
+				
+				public final ForgeConfigSpec.EnumValue<HorizontalScale> horizontalScale;
+				
+				public final ForgeConfigSpec.EnumValue<HorizontalQuality> horizontalQuality;
+				
+				
+				QualityOption(ForgeConfigSpec.Builder builder)
+				{
+					builder.comment("These settings control how detailed the fake chunks will be.").push(this.getClass().getSimpleName());
+					
+					verticalQuality = builder
+							.comment("\n\n"
+									+ " This indicates how detailed fake chunks will represent \n"
+									+ " overhangs, caves, floating islands, ect. \n"
+									+ " Higher options will use more memory and increase GPU usage. \n"
+									+ " " + VerticalQuality.LOW + ": uses at max 2 columns per position. \n"
+									+ " " + VerticalQuality.MEDIUM + ": uses at max 4 columns per position. \n"
+									+ " " + VerticalQuality.HIGH + ": uses at max 8 columns per position. \n")
+							.defineEnum("Vertical Quality", VerticalQuality.MEDIUM);
+					
+					horizontalScale = builder
+							.comment("\n\n"
+									+ " This indicates how quickly fake chunks drop off in quality. \n"
+									+ " " + HorizontalScale.LOW + ": quality drops every " + HorizontalScale.LOW.distanceUnit / 16 + " chunks. \n"
+									+ " " + HorizontalScale.MEDIUM + ": quality drops every " + HorizontalScale.MEDIUM.distanceUnit / 16 + " chunks. \n"
+									+ " " + HorizontalScale.HIGH + ": quality drops every " + HorizontalScale.HIGH.distanceUnit / 16 + " chunks. \n")
+							.defineEnum("Horizontal Scale", HorizontalScale.MEDIUM);
+					
+					horizontalQuality = builder
+							.comment("\n\n"
+									+ " This indicates the exponential base of the quadratic drop-off \n"
+									+ " " + HorizontalQuality.LOWEST + ": base " + HorizontalQuality.LOWEST.quadraticBase + ". \n"
+									+ " " + HorizontalQuality.LOW + ": base " + HorizontalQuality.LOW.quadraticBase + ". \n"
+									+ " " + HorizontalQuality.MEDIUM + ": base " + HorizontalQuality.MEDIUM.quadraticBase + ". \n"
+									+ " " + HorizontalQuality.HIGH + ": base " + HorizontalQuality.HIGH.quadraticBase + ". \n")
+							.defineEnum("Horizontal Quality", HorizontalQuality.MEDIUM);
+					
+					drawResolution = builder
+							.comment("\n\n"
+									+ " What is the maximum detail fake chunks should be drawn at? \n"
+									+ " " + HorizontalResolution.CHUNK + ": render 1 LOD for each Chunk. \n"
+									+ " " + HorizontalResolution.HALF_CHUNK + ": render 4 LODs for each Chunk. \n"
+									+ " " + HorizontalResolution.FOUR_BLOCKS + ": render 16 LODs for each Chunk. \n"
+									+ " " + HorizontalResolution.TWO_BLOCKS + ": render 64 LODs for each Chunk. \n"
+									+ " " + HorizontalResolution.BLOCK + ": render 256 LODs for each Chunk. \n")
+							.defineEnum("Block size", HorizontalResolution.BLOCK);
+					
+					lodChunkRenderDistance = builder
+							.comment("\n\n"
+									+ " The mod's render distance, measured in chunks. \n")
+							.defineInRange("Lod Render Distance", 64, 32, 1024);
+					
+					builder.pop();
+				}
+			}
+			
+			
+			public static class FogQualityOption
+			{
+				public final ForgeConfigSpec.EnumValue<FogDistance> fogDistance;
+				
+				public final ForgeConfigSpec.EnumValue<FogDrawOverride> fogDrawOverride;
+				
+				FogQualityOption(ForgeConfigSpec.Builder builder)
+				{
+					
+					builder.comment("These settings control the fog quality.").push(this.getClass().getSimpleName());
+					
+					fogDistance = builder
+							.comment("\n\n"
+									+ " At what distance should Fog be drawn on the fake chunks? \n"
+									+ " If the fog cuts off abruptly or you are using Optifine's \"fast\" fog option \n"
+									+ " set this to " + FogDistance.NEAR + " or " + FogDistance.FAR + ". \n")
+							.defineEnum("Fog Distance", FogDistance.NEAR_AND_FAR);
+					
+					fogDrawOverride = builder
+							.comment("\n\n"
+									+ " When should fog be drawn? \n"
+									+ " " + FogDrawOverride.OPTIFINE_SETTING + ": Use whatever Fog setting Optifine is using. If Optifine isn't installed this defaults to " + FogDrawOverride.FANCY + ". \n"
+									+ " " + FogDrawOverride.NO_FOG + ": Never draw fog on the LODs \n"
+									+ " " + FogDrawOverride.FAST + ": Always draw fast fog on the LODs \n"
+									+ " " + FogDrawOverride.FANCY + ": Always draw fancy fog on the LODs (if your graphics card supports it) \n")
+							.defineEnum("Fog Draw Override", FogDrawOverride.FANCY);
+					builder.pop();
+				}
+			}
+			
+			
+			public static class AdvancedGraphicsOption
+			{
+				public final ForgeConfigSpec.EnumValue<LodTemplate> lodTemplate;
+				
+				public final ForgeConfigSpec.BooleanValue disableDirectionalCulling;
+				
+				public final ForgeConfigSpec.BooleanValue alwaysDrawAtMaxQuality;
+				
+				public final ForgeConfigSpec.EnumValue<VanillaOverdraw> vanillaOverdraw;
+				
+				AdvancedGraphicsOption(ForgeConfigSpec.Builder builder)
+				{
+					
+					builder.comment("Advanced graphics option for the mod").push(this.getClass().getSimpleName());
+					
+					lodTemplate = builder
+							.comment("\n\n"
+									+ " How should the LODs be drawn? \n"
+									+ " NOTE: Currently only " + LodTemplate.CUBIC + " is implemented! \n"
+									+ " \n"
+									+ " " + LodTemplate.CUBIC + ": LOD Chunks are drawn as rectangular prisms (boxes). \n"
+									+ " " + LodTemplate.TRIANGULAR + ": LOD Chunks smoothly transition between other. \n"
+									+ " " + LodTemplate.DYNAMIC + ": LOD Chunks smoothly transition between each other, \n"
+									+ " " + "         unless a neighboring chunk is at a significantly different height. \n")
+							.defineEnum("LOD Template", LodTemplate.CUBIC);
+					
+					disableDirectionalCulling = builder
+							.comment("\n\n"
+									+ " If false fake chunks behind the player's camera \n"
+									+ " aren't drawn, increasing performance. \n\n"
+									+ ""
+									+ " If true all LODs are drawn, even those behind \n"
+									+ " the player's camera, decreasing performance. \n\n"
+									+ ""
+									+ " Disable this if you see LODs disappearing. \n"
+									+ " (Which may happen if you are using a camera mod) \n")
+							.define("Disable Directional Culling", false);
+					
+					alwaysDrawAtMaxQuality = builder
+							.comment("\n\n"
+									+ " Disable quality falloff, \n"
+									+ " all fake chunks will be drawn at the highest \n"
+									+ " available detail level. \n\n"
+									+ " "
+									+ " WARNING: \n"
+									+ " This could cause a Out Of Memory crash on render \n"
+									+ " distances higher than 128 \n")
+							.define("Always Use Max Quality", false);
+					
+					vanillaOverdraw = builder
+							.comment("\n\n"
+									+ " How often should LODs be drawn on top of regular chunks? \n"
+									+ " HALF and ALWAYS will prevent holes in the world, but may look odd for transparent blocks or in caves. \n\n"
+									+ " " + VanillaOverdraw.NEVER + ": LODs won't render on top of vanilla chunks. \n"
+									+ " " + VanillaOverdraw.DYNAMIC + ": LODs will render on top of distant vanilla chunks to hide delayed loading. \n"
+									+ " " + "     More effective on higher render distances. \n"
+									+ " " + "     For vanilla render distances less than or equal to " + LodUtil.MINIMUM_RENDER_DISTANCE_FOR_PARTIAL_OVERDRAW + " \n"
+									+ " " + "     " + VanillaOverdraw.NEVER + " or " + VanillaOverdraw.ALWAYS + " may be used depending on the dimension. \n"
+									+ " " + VanillaOverdraw.ALWAYS + ": LODs will render on all vanilla chunks preventing holes in the world. \n"
+									+ " " + VanillaOverdraw.BORDER + ": LODs will render only on the border of vanilla chunks preventing only some holes in the world. \n")
+							.defineEnum("Vanilla Overdraw", VanillaOverdraw.DYNAMIC);
+					builder.pop();
+				}
+			}
+		}
+		
+		
+		
+		
+		//========================//
+		// WorldGenerator Configs //
+		//========================//
+		public static class WorldGenerator
+		{
+			public final ForgeConfigSpec.EnumValue<GenerationPriority> generationPriority;
+			public final ForgeConfigSpec.EnumValue<DistanceGenerationMode> distanceGenerationMode;
+			public final ForgeConfigSpec.BooleanValue allowUnstableFeatureGeneration;
+			public final ForgeConfigSpec.EnumValue<BlockToAvoid> blockToAvoid;
+			//public final ForgeConfigSpec.BooleanValue useExperimentalPreGenLoading;
+			
+			WorldGenerator(ForgeConfigSpec.Builder builder)
+			{
+				builder.comment("These settings control how fake chunks outside your normal view range are generated.").push("Generation");
+				
+				generationPriority = builder
+						.comment("\n\n"
+								+ " " + GenerationPriority.FAR_FIRST + " \n"
+								+ " LODs are generated from low to high detail \n"
+								+ " with a small priority for far away regions. \n"
+								+ " This fills in the world fastest. \n\n"
+								+ ""
+								+ " " + GenerationPriority.NEAR_FIRST + " \n"
+								+ " LODs are generated around the player \n"
+								+ " in a spiral, similar to vanilla minecraft. \n")
+						.defineEnum("Generation Priority", GenerationPriority.FAR_FIRST);
+				
+				distanceGenerationMode = builder
+						.comment("\n\n"
+								+ " Note: The times listed here are the amount of time it took \n"
+								+ "       one of the developer's PC to generate 1 chunk, \n"
+								+ "       and are included so you can compare the \n"
+								+ "       different generation options. Your mileage may vary. \n"
+								+ "\n"
+								
+								+ " " + DistanceGenerationMode.NONE + " \n"
+								+ " Don't run the distance generator. \n"
+								
+								+ "\n"
+								+ " " + DistanceGenerationMode.BIOME_ONLY + " \n"
+								+ " Only generate the biomes and use the biome's \n"
+								+ " grass color, water color, or snow color. \n"
+								+ " Doesn't generate height, everything is shown at sea level. \n"
+								+ " Multithreaded - Fastest (2-5 ms) \n"
+								
+								+ "\n"
+								+ " " + DistanceGenerationMode.BIOME_ONLY_SIMULATE_HEIGHT + " \n"
+								+ " Same as BIOME_ONLY, except instead \n"
+								+ " of always using sea level as the LOD height \n"
+								+ " different biome types (mountain, ocean, forest, etc.) \n"
+								+ " use predetermined heights to simulate having height data. \n"
+								+ " Multithreaded - Fastest (2-5 ms) \n"
+								
+								+ "\n"
+								+ " " + DistanceGenerationMode.SURFACE + " \n"
+								+ " Generate the world surface, \n"
+								+ " this does NOT include trees, \n"
+								+ " or structures. \n"
+								+ " Multithreaded - Faster (10-20 ms) \n"
+								
+								+ "\n"
+								+ " " + DistanceGenerationMode.FEATURES + " \n"
+								+ " Generate everything except structures. \n"
+								+ " WARNING: This may cause world generation bugs or instability! \n"
+								+ " Multithreaded - Fast (15-20 ms) \n"
+								
+								+ "\n"
+								+ " " + DistanceGenerationMode.SERVER + " \n"
+								+ " Ask the server to generate/load each chunk. \n"
+								+ " This will show player made structures, which can \n"
+								+ " be useful if you are adding the mod to a pre-existing world. \n"
+								+ " This is the most compatible, but causes server/simulation lag. \n"
+								+ " SingleThreaded - Slow (15-50 ms, with spikes up to 200 ms) \n")
+						.defineEnum("Distance Generation Mode", DistanceGenerationMode.SURFACE);
+				
+				allowUnstableFeatureGeneration = builder
+						.comment("\n\n"
+								+ " When using the " + DistanceGenerationMode.FEATURES + " generation mode \n"
+								+ " some features may not be thread safe, which could \n"
+								+ " cause instability and crashes. \n"
+								+ " By default (false) those features are skipped, \n"
+								+ " improving stability, but decreasing how many features are \n"
+								+ " actually generated. \n"
+								+ " (for example: some tree generation is unstable, \n"
+								+ "               so some trees may not be generated.) \n"
+								+ " By setting this to true, all features will be generated, \n"
+								+ " but your game will be more unstable and crashes may occur. \n"
+								+ " \n"
+								+ " I would love to remove this option and always generate everything, \n"
+								+ " but I'm not sure how to do that. \n"
+								+ " If you are a Java wizard, check out the git issue here: \n"
+								+ " https://gitlab.com/jeseibel/minecraft-lod-mod/-/issues/35 \n")
+						.define("Allow Unstable Feature Generation", false);
+				
+				blockToAvoid = builder
+						.comment("\n\n"
+								+ " " + BlockToAvoid.NONE + ": Use all blocks when generating fake chunks \n\n"
+								+ ""
+								+ " " + BlockToAvoid.NON_FULL + ": Only use full blocks when generating fake chunks (ignores slabs, lanterns, torches, grass, etc.) \n\n"
+								+ ""
+								+ " " + BlockToAvoid.NO_COLLISION + ": Only use solid blocks when generating fake chunks (ignores grass, torches, etc.) \n"
+								+ ""
+								+ " " + BlockToAvoid.BOTH + ": Only use full solid blocks when generating fake chunks \n"
+								+ "\n")
+						.defineEnum("Block to avoid", BlockToAvoid.BOTH);
+				
+				/*useExperimentalPreGenLoading = builder
+						 .comment("\n\n"
+								+ " if a chunk has been pre-generated, then the mod would use the real chunk for the \n"
+								+ "fake chunk creation. May require a deletion of the lod file to see the result. \n")
+						 .define("Use pre-generated chunks", false);*/
+				builder.pop();
+			}
+		}
+		
+		
+		
+		
+		//============================//
+		// AdvancedModOptions Configs //
+		//============================//
+		public static class AdvancedModOptions
+		{
+			
+			public final Threading threading;
+			public final Debugging debugging;
+			public final Buffers buffers;
+			
+			public AdvancedModOptions(ForgeConfigSpec.Builder builder)
+			{
+				builder.comment("Advanced mod settings").push(this.getClass().getSimpleName());
+				{
+					threading = new Threading(builder);
+					debugging = new Debugging(builder);
+					buffers = new Buffers(builder);
+				}
+				builder.pop();
+			}
+			
+			public static class Threading
+			{
+				public final ForgeConfigSpec.IntValue numberOfWorldGenerationThreads;
+				public final ForgeConfigSpec.IntValue numberOfBufferBuilderThreads;
+				
+				Threading(ForgeConfigSpec.Builder builder)
+				{
+					builder.comment("These settings control how many CPU threads the mod uses for different tasks.").push(this.getClass().getSimpleName());
+					
+					numberOfWorldGenerationThreads = builder
+							.comment("\n\n"
+									+ " This is how many threads are used when generating LODs outside \n"
+									+ " the normal render distance. \n"
+									+ " If you experience stuttering when generating distant LODs, decrease \n"
+									+ " this number. If you want to increase LOD generation speed, \n"
+									+ " increase this number. \n\n"
+									+ ""
+									+ " The maximum value is the number of logical processors on your CPU. \n"
+									+ " Requires a restart to take effect. \n")
+							.defineInRange("numberOfWorldGenerationThreads", Math.max(1, Runtime.getRuntime().availableProcessors() / 2), 1, Runtime.getRuntime().availableProcessors());
+					
+					numberOfBufferBuilderThreads = builder
+							.comment("\n\n"
+									+ " This is how many threads are used when building vertex buffers \n"
+									+ " (The things sent to your GPU to draw the fake chunks). \n"
+									+ " If you experience high CPU usage when NOT generating distant \n"
+									+ " fake chunks, lower this number. \n"
+									+ " \n"
+									+ " The maximum value is the number of logical processors on your CPU. \n"
+									+ " Requires a restart to take effect. \n")
+							.defineInRange("numberOfBufferBuilderThreads", Math.max(1, Runtime.getRuntime().availableProcessors() / 2), 1, Runtime.getRuntime().availableProcessors());
+					
+					builder.pop();
+				}
+			}
+
+			
+			
+			
+			//===============//
+			// Debug Options //
+			//===============//
+			public static class Debugging
+			{
+				public final ForgeConfigSpec.BooleanValue drawLods;
+				public final ForgeConfigSpec.EnumValue<DebugMode> debugMode;
+				public final ForgeConfigSpec.BooleanValue enableDebugKeybindings;
+				
+				Debugging(ForgeConfigSpec.Builder builder)
+				{
+					builder.comment("These settings can be used to look for bugs, or see how certain aspects of the mod work.").push(this.getClass().getSimpleName());
+					
+					drawLods = builder
+							.comment("\n\n"
+									+ " If true, the mod is enabled and fake chunks will be drawn. \n"
+									+ " If false, the mod will still generate fake chunks, \n"
+									+ " but they won't be rendered. \n")
+							.define("Disable Drawing", true);
+					
+					debugMode = builder
+							.comment("\n\n"
+									+ " " + DebugMode.OFF + ": Fake chunks will be drawn with their normal colors. \n"
+									+ " " + DebugMode.SHOW_DETAIL + ": Fake chunks color will be based on their detail level. \n"
+									+ " " + DebugMode.SHOW_DETAIL_WIREFRAME + ": Fake chunks color will be based on their detail level, drawn as a wireframe. \n")
+							.defineEnum("Debug Mode", DebugMode.OFF);
+					
+					enableDebugKeybindings = builder
+							.comment("\n\n"
+									+ " If true the F4 key can be used to cycle through the different debug modes. \n"
+									+ " and the F6 key can be used to enable and disable LOD rendering.")
+							.define("Enable Debug Keybinding", false);
+					
+					builder.pop();
+				}
+			}
+			
+			
+			public static class Buffers
+			{
+				public final ForgeConfigSpec.EnumValue<BufferRebuildTimes> rebuildTimes;
+				
+				Buffers(ForgeConfigSpec.Builder builder)
+				{
+					builder.comment("These settings affect how often geometry is are built.").push(this.getClass().getSimpleName());
+					
+					rebuildTimes = builder
+							.comment("\n\n"
+									+ " How frequently should geometry be rebuilt and sent to the GPU? \n"
+									+ " Higher settings may cause stuttering, but will prevent holes in the world \n")
+							.defineEnum("rebuildFrequency", BufferRebuildTimes.NORMAL);
+					
+					builder.pop();
+				}
+			}
+		}
+	}
+	
+	
+	/** {@link Path} to the configuration file of this mod */
+	private static final Path CONFIG_PATH = Paths.get("config", ModInfo.MODNAME + ".toml");
+	
+	public static final ForgeConfigSpec CLIENT_SPEC;
+	public static final Client CLIENT;
+	
+	static
+	{
+		final Pair<Client, ForgeConfigSpec> specPair = new ForgeConfigSpec.Builder().configure(Client::new);
+		CLIENT_SPEC = specPair.getRight();
+		CLIENT = specPair.getLeft();
+		CommentedFileConfig clientConfig = CommentedFileConfig.builder(CONFIG_PATH)
+				.writingMode(WritingMode.REPLACE)
+				.build();
+		clientConfig.load();
+		clientConfig.save();
+		CLIENT_SPEC.setConfig(clientConfig);
+	}
+	
+	@SubscribeEvent
+	public static void onLoad(final ModConfig.Loading configEvent)
+	{
+		LogManager.getLogger().debug(ModInfo.MODNAME, "Loaded forge config file {}", configEvent.getConfig().getFileName());
+	}
+	
+	@SubscribeEvent
+	public static void onFileChange(final ModConfig.Reloading configEvent)
+	{
+		LogManager.getLogger().debug(ModInfo.MODNAME, "Forge config just got changed on the file system!");
+	}
+	
+}
@@ -0,0 +1,47 @@
+/*
+ *    This file is part of the Distant Horizon mod (formerly the LOD Mod),
+ *    licensed under the GNU GPL v3 License.
+ *
+ *    Copyright (C) 2020  James Seibel
+ *
+ *    This program is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, version 3.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.seibel.lod.enums;
+
+/**
+ * heightmap <br>
+ * multi_lod <br>
+ * 
+ * @author Leonardo Amato
+ * @version 19-10-2021
+ */
+public enum BlockToAvoid
+{
+	NONE(false, false),
+	
+	NON_FULL(true, false),
+	
+	NO_COLLISION(false, true),
+	
+	BOTH(true, true);
+	
+	public boolean nonFull;
+	public boolean noCollision;
+	
+	BlockToAvoid(boolean nonFull, boolean noCollision)
+	{
+		this.nonFull = nonFull;
+		this.noCollision = noCollision;
+	}
+}
@@ -0,0 +1,49 @@
+/*
+ *    This file is part of the Distant Horizon mod (formerly the LOD Mod),
+ *    licensed under the GNU GPL v3 License.
+ *
+ *    Copyright (C) 2020  James Seibel
+ *
+ *    This program is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, version 3.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.seibel.lod.enums;
+
+/**
+ * Near_First <br>
+ * Far_First <br>
+ * <br>
+ * Determines how fast the buffers need to be regenerated
+ * 
+ * @author Leonardo Amato
+ * @version 9-25-2021
+ */
+public enum BufferRebuildTimes
+{
+	FREQUENT(1000, 500, 2500),
+	
+	NORMAL(2000, 1000, 5000),
+	
+	RARE(5000, 2000, 10000);
+	
+	public final int playerMoveTimeout;
+	public final int renderedChunkTimeout;
+	public final int chunkChangeTimeout;
+	
+	BufferRebuildTimes(int playerMoveTimeout, int renderedChunkTimeout, int chunkChangeTimeout)
+	{
+		this.playerMoveTimeout = playerMoveTimeout;
+		this.renderedChunkTimeout = renderedChunkTimeout;
+		this.chunkChangeTimeout = chunkChangeTimeout;
+	}
+}
@@ -1,34 +0,0 @@
-package com.seibel.lod.enums;
-
-/**
- * TOP, NORTH, SOUTH, EAST, WEST, BOTTOM
- * 
- * @author James Seibel
- * @version 10-17-2020
- */
-public enum ColorDirection
-{
-	// used for colors
-	/** +Y */
-	TOP(0),
-	
-	/** -Z */
-	NORTH(1),
-	/** +Z */
-	SOUTH(2),
-	
-	/** +X */
-	EAST(3),
-	/** -X */
-	WEST(4),
-	
-	/** -Y */
-	BOTTOM(5);
-	
-	public final int value;
-	
-	private ColorDirection(int newValue)
-	{
-		value = newValue;
-	}
-}
@@ -0,0 +1,54 @@
+/*
+ *    This file is part of the Distant Horizon mod (formerly the LOD Mod),
+ *    licensed under the GNU GPL v3 License.
+ *
+ *    Copyright (C) 2020  James Seibel
+ *
+ *    This program is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, version 3.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.seibel.lod.enums;
+
+/**
+ * off, detail, detail wireframe
+ * 
+ * @author James Seibel
+ * @version 8-28-2021
+ */
+public enum DebugMode
+{
+	/** LODs are rendered normally */
+	OFF,
+	
+	/** LOD colors are based on their detail */
+	SHOW_DETAIL,
+	
+	/** LOD colors are based on their detail, and draws in wireframe. */
+	SHOW_DETAIL_WIREFRAME;
+	
+	/** used when cycling through the different modes */
+	private DebugMode next;
+	
+	static
+	{
+		OFF.next = SHOW_DETAIL;
+		SHOW_DETAIL.next = SHOW_DETAIL_WIREFRAME;
+		SHOW_DETAIL_WIREFRAME.next = OFF;
+	}
+	
+	/** returns the next debug mode */
+	public DebugMode getNext()
+	{
+		return this.next;
+	}
+}
@@ -0,0 +1,95 @@
+/*
+ *    This file is part of the Distant Horizon mod (formerly the LOD Mod),
+ *    licensed under the GNU GPL v3 License.
+ *
+ *    Copyright (C) 2020  James Seibel
+ *
+ *    This program is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, version 3.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.seibel.lod.enums;
+
+/**
+ * NONE <br>
+ * BIOME_ONLY <br>
+ * BIOME_ONLY_SIMULATE_HEIGHT <br>
+ * SURFACE <br>
+ * FEATURES <br>
+ * SERVER <br><br>
+ * <p>
+ * In order of fastest to slowest.
+ * 
+ * @author James Seibel
+ * @author Leonardo Amato
+ * @version 8-7-2021
+ */
+public enum DistanceGenerationMode
+{
+	/**
+	 * Don't generate anything
+	 */
+	NONE((byte) 0),
+	
+	/**
+	 * Only generate the biomes and use biome
+	 * grass/foliage color, water color, or ice color
+	 * to generate the color.
+	 * Doesn't generate height, everything is shown at sea level.
+	 * Multithreaded - Fastest (2-5 ms)
+	 */
+	BIOME_ONLY((byte) 1),
+	
+	/**
+	 * Same as BIOME_ONLY, except instead
+	 * of always using sea level as the LOD height
+	 * different biome types (mountain, ocean, forest, etc.)
+	 * use predetermined heights to simulate having height data.
+	 */
+	BIOME_ONLY_SIMULATE_HEIGHT((byte) 2),
+	
+	/**
+	 * Generate the world surface,
+	 * this does NOT include caves, trees,
+	 * or structures.
+	 * Multithreaded - Faster (10-20 ms)
+	 */
+	SURFACE((byte) 3),
+	
+	/**
+	 * Generate everything except structures.
+	 * NOTE: This may cause world generation bugs or instability,
+	 * since some features cause concurrentModification exceptions.
+	 * Multithreaded - Fast (15-20 ms)
+	 */
+	FEATURES((byte) 4),
+	
+	/**
+	 * Ask the server to generate/load each chunk.
+	 * This is the most compatible, but causes server/simulation lag.
+	 * This will also show player made structures if you
+	 * are adding the mod to a pre-existing world.
+	 * Singlethreaded - Slow (15-50 ms, with spikes up to 200 ms)
+	 */
+	SERVER((byte) 5);
+	
+	
+	/**
+	 * The higher the number the more complete the generation is.
+	 */
+	public final byte complexity;
+	
+	DistanceGenerationMode(byte complexity)
+	{
+		this.complexity = complexity;
+	}
+}
@@ -1,7 +1,26 @@
+/*
+ *    This file is part of the Distant Horizon mod (formerly the LOD Mod),
+ *    licensed under the GNU GPL v3 License.
+ *
+ *    Copyright (C) 2020  James Seibel
+ *
+ *    This program is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, version 3.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.seibel.lod.enums;

 /**
- * Near, far, or NEAR_AND_FAR.
+ * NEAR, FAR, or NEAR_AND_FAR.
 * 
 * @author James Seibel
 * @version 02-14-2021
@@ -10,8 +29,10 @@ public enum FogDistance
 {
 	/** good for fast or fancy fog qualities. */
 	NEAR,
+	
 	/** good for fast or fancy fog qualities. */
 	FAR,
+	
 	/** only looks good if the fog quality is set to Fancy. */
-	NEAR_AND_FAR;
+	NEAR_AND_FAR
 }
@@ -0,0 +1,47 @@
+/*
+ *    This file is part of the Distant Horizon mod (formerly the LOD Mod),
+ *    licensed under the GNU GPL v3 License.
+ *
+ *    Copyright (C) 2020  James Seibel
+ *
+ *    This program is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, version 3.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.seibel.lod.enums;
+
+/**
+ * USE_OPTIFINE_FOG_SETTING, <br>
+ * NEVER_DRAW_FOG, <br>
+ * ALWAYS_DRAW_FOG_FAST, <br>
+ * ALWAYS_DRAW_FOG_FANCY <br>
+ * 
+ * @author James Seibel
+ * @version 7-3-2021
+ */
+public enum FogDrawOverride
+{
+	/**
+	 * Use whatever Fog setting optifine is using.
+	 * If optifine isn't installed this defaults to ALWAYS_DRAW_FOG.
+	 */
+	OPTIFINE_SETTING,
+	
+	/** Never draw fog on the LODs */
+	NO_FOG,
+	
+	/** Always draw fast fog on the LODs */
+	FAST,
+	
+	/** Always draw fancy fog on the LODs */
+	FANCY
+}
@@ -1,3 +1,22 @@
+/*
+ *    This file is part of the Distant Horizon mod (formerly the LOD Mod),
+ *    licensed under the GNU GPL v3 License.
+ *
+ *    Copyright (C) 2020  James Seibel
+ *
+ *    This program is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, version 3.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.seibel.lod.enums;

 /**
@@ -10,5 +29,5 @@ public enum FogQuality
 {
 	FAST,
 	FANCY,
-	OFF;
+	OFF
 }
@@ -0,0 +1,37 @@
+/*
+ *    This file is part of the Distant Horizon mod (formerly the LOD Mod),
+ *    licensed under the GNU GPL v3 License.
+ *
+ *    Copyright (C) 2020  James Seibel
+ *
+ *    This program is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, version 3.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.seibel.lod.enums;
+
+/**
+ * Near_First <br>
+ * Far_First <br>
+ * <br>
+ * Determines which LODs should have priority when generating
+ * outside the normal view distance.
+ * 
+ * @author Leonardo Amato
+ * @version 9-25-2021
+ */
+public enum GenerationPriority
+{
+	NEAR_FIRST,
+	
+	FAR_FIRST
+}
@@ -0,0 +1,38 @@
+/*
+ *    This file is part of the Distant Horizon mod (formerly the LOD Mod),
+ *    licensed under the GNU GPL v3 License.
+ *
+ *    Copyright (C) 2020  James Seibel
+ *
+ *    This program is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, version 3.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.seibel.lod.enums;
+
+/**
+ * Minecraft, Lod_Builder, None
+ * 
+ * @author James Seibel
+ * @version 10-1-2021
+ */
+public enum GlProxyContext
+{
+	/** Minecraft's render thread */
+	MINECRAFT,
+	
+	/** The context we send buffers to the GPU on */
+	LOD_BUILDER,
+	
+	/** used to un-bind threads */
+	NONE,
+}
@@ -0,0 +1,53 @@
+/*
+ *    This file is part of the Distant Horizon mod (formerly the LOD Mod),
+ *    licensed under the GNU GPL v3 License.
+ *
+ *    Copyright (C) 2020  James Seibel
+ *
+ *    This program is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, version 3.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.seibel.lod.enums;
+
+/**
+ * Lowest <br>
+ * Low <br>
+ * Medium <br>
+ * High <br>
+ * <br>
+ * this indicates the base of the quadratic function we use for the quality drop off
+ * 
+ * @author Leonardo Amato
+ * @version 9-29-2021
+ */
+public enum HorizontalQuality
+{
+	/** 1.0 AKA Linear */
+	LOWEST(1.0f),
+	
+	/** exponent 1.5 */
+	LOW(1.5f),
+	
+	/** exponent 2.0 */
+	MEDIUM(2.0f),
+	
+	/** exponent 2.2 */
+	HIGH(2.2f);
+	
+	public final double quadraticBase;
+	
+	HorizontalQuality(double distanceUnit)
+	{
+		this.quadraticBase = distanceUnit;
+	}
+}
@@ -0,0 +1,175 @@
+/*
+ *    This file is part of the Distant Horizon mod (formerly the LOD Mod),
+ *    licensed under the GNU GPL v3 License.
+ *
+ *    Copyright (C) 2020  James Seibel
+ *
+ *    This program is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, version 3.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.seibel.lod.enums;
+
+import java.util.ArrayList;
+import java.util.Collections;
+
+import com.seibel.lod.util.LodUtil;
+
+/**
+ * chunk <Br>
+ * half_chunk <Br>
+ * four_blocks <br>
+ * two_blocks <Br>
+ * block <br>
+ * 
+ * @author James Seibel
+ * @author Leonardo Amato
+ * @version 9-25-2021
+ */
+public enum HorizontalResolution
+{
+	/** render 256 LODs for each chunk */
+	BLOCK(16, 0),
+	
+	/** render 64 LODs for each chunk */
+	TWO_BLOCKS(8, 1),
+	
+	/** render 16 LODs for each chunk */
+	FOUR_BLOCKS(4, 2),
+	
+	/** render 4 LODs for each chunk */
+	HALF_CHUNK(2, 3),
+	
+	/** render 1 LOD for each chunk */
+	CHUNK(1, 4);
+	
+	
+	
+	
+	
+	/**
+	 * How many DataPoints should
+	 * be drawn per side, per LodChunk
+	 */
+	public final int dataPointLengthCount;
+	
+	/** How wide each LOD DataPoint is */
+	public final int dataPointWidth;
+	
+	/**
+	 * This is the same as detailLevel in LodQuadTreeNode,
+	 * lowest is 0 highest is 9
+	 */
+	public final byte detailLevel;
+	
+	/* Start/End X/Z give the block positions
+	 * for each individual dataPoint in a LodChunk */
+	public final int[] startX;
+	public final int[] startZ;
+	
+	public final int[] endX;
+	public final int[] endZ;
+	
+	
+	/**
+	 * 1st dimension: LodDetail.detailLevel <br>
+	 * 2nd dimension: An array of all LodDetails that are less than or <br>
+	 * equal to that detailLevel
+	 */
+	private static HorizontalResolution[][] lowerDetailArrays;
+	
+	
+	
+	
+	HorizontalResolution(int newLengthCount, int newDetailLevel)
+	{
+		detailLevel = (byte) newDetailLevel;
+		dataPointLengthCount = newLengthCount;
+		dataPointWidth = 16 / dataPointLengthCount;
+		
+		startX = new int[dataPointLengthCount * dataPointLengthCount];
+		endX = new int[dataPointLengthCount * dataPointLengthCount];
+		
+		startZ = new int[dataPointLengthCount * dataPointLengthCount];
+		endZ = new int[dataPointLengthCount * dataPointLengthCount];
+		
+		
+		int index = 0;
+		for (int x = 0; x < newLengthCount; x++)
+		{
+			for (int z = 0; z < newLengthCount; z++)
+			{
+				startX[index] = x * dataPointWidth;
+				startZ[index] = z * dataPointWidth;
+				
+				endX[index] = (x * dataPointWidth) + dataPointWidth;
+				endZ[index] = (z * dataPointWidth) + dataPointWidth;
+				
+				index++;
+			}
+		}
+		
+	}// constructor
+	
+	
+	
+	
+	
+	
+	/**
+	 * Returns an array of all LodDetails that have a detail level
+	 * that is less than or equal to the given LodDetail
+	 */
+	public static HorizontalResolution[] getSelfAndLowerDetails(HorizontalResolution detail)
+	{
+		if (lowerDetailArrays == null)
+		{
+			// run first time setup
+			lowerDetailArrays = new HorizontalResolution[HorizontalResolution.values().length][];
+			
+			// go through each LodDetail
+			for (HorizontalResolution currentDetail : HorizontalResolution.values())
+			{
+				ArrayList<HorizontalResolution> lowerDetails = new ArrayList<>();
+				
+				// find the details lower than currentDetail
+				for (HorizontalResolution compareDetail : HorizontalResolution.values())
+				{
+					if (currentDetail.detailLevel <= compareDetail.detailLevel)
+					{
+						lowerDetails.add(compareDetail);
+					}
+				}
+				
+				// have the highest detail item first in the list
+				Collections.sort(lowerDetails);
+				Collections.reverse(lowerDetails);
+				
+				lowerDetailArrays[currentDetail.detailLevel] = lowerDetails.toArray(new HorizontalResolution[lowerDetails.size()]);
+			}
+		}
+		
+		return lowerDetailArrays[detail.detailLevel];
+	}
+	
+	/** Returns what detail level should be used at a given distance and maxDistance. */
+	public static HorizontalResolution getDetailForDistance(HorizontalResolution maxDetailLevel, int distance, int maxDistance)
+	{
+		HorizontalResolution[] lowerDetails = getSelfAndLowerDetails(maxDetailLevel);
+		int distanceBetweenDetails = maxDistance / lowerDetails.length;
+		int index = LodUtil.clamp(0, distance / distanceBetweenDetails, lowerDetails.length - 1);
+		
+		return lowerDetails[index];
+		
+	}
+	
+}
@@ -0,0 +1,49 @@
+/*
+ *    This file is part of the Distant Horizon mod (formerly the LOD Mod),
+ *    licensed under the GNU GPL v3 License.
+ *
+ *    Copyright (C) 2020  James Seibel
+ *
+ *    This program is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, version 3.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.seibel.lod.enums;
+
+/**
+ * Low <br>
+ * Medium <br>
+ * High <br>
+ * <br>
+ * this is a quality scale for the detail drop-off
+ * 
+ * @author Leonardo Amato
+ * @version 9-25-2021
+ */
+public enum HorizontalScale
+{
+	/** Lods are 2D with heightMap */
+	LOW(64),
+	
+	/** Lods expand in three dimension */
+	MEDIUM(128),
+	
+	/** Lods expand in three dimension */
+	HIGH(256);
+	
+	public final int distanceUnit;
+	
+	HorizontalScale(int distanceUnit)
+	{
+		this.distanceUnit = distanceUnit;
+	}
+}
@@ -1,18 +0,0 @@
-package com.seibel.lod.enums;
-
-/**
- * top, individual_sides
- * 
- * @author James Seibel
- * @version 05-08-2021
- */
-public enum LodColorStyle
-{
-	/** Use the color from the top of the LOD chunk 
-	 * for all sides */
-	TOP,
-	
-	/** For each side of the LOD use the color corresponding
-	 * to that side */
-	INDIVIDUAL_SIDES;
-}
@@ -1,26 +0,0 @@
-package com.seibel.lod.enums;
-
-/**
- * NE, SE, SW, NW
- * 
- * @author James Seibel
- * @version 1-20-2020
- */
-public enum LodCorner
-{
-	/** -Z, +X */
-	NE(0),
-	/** +Z, +X */
-	SE(1),
-	/** +Z, -X */
-	SW(2),
-	/** -Z, -X */
-	NW(3);
-	
-	public final int value;
-	
-	private LodCorner(int newValue)
-	{
-		value = newValue;
-	}
-}
@@ -1,25 +0,0 @@
-package com.seibel.lod.enums;
-
-/**
- * single, quad
- * 
- * @author James Seibel
- * @version 05-29-2021
- */
-public enum LodDetail
-{
-	/** render 1 LOD for each chunk */
-	SINGLE(1),
-	
-	/** render 4 LODs for each chunk */
-	DOUBLE(2);
-	
-	/** How many data points wide the related
-	 * LodChunk object should contain */
-	public final int value;
-	
-	private LodDetail(int newValue)
-	{
-		value = newValue;
-	}
-}
@@ -1,38 +1,62 @@
+/*
+ *    This file is part of the Distant Horizon mod (formerly the LOD Mod),
+ *    licensed under the GNU GPL v3 License.
+ *
+ *    Copyright (C) 2020  James Seibel
+ *
+ *    This program is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, version 3.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.seibel.lod.enums;

-import com.seibel.lod.builders.lodTemplates.AbstractLodTemplate;
-import com.seibel.lod.builders.lodTemplates.CubicLodTemplate;
-import com.seibel.lod.builders.lodTemplates.DynamicLodTemplate;
-import com.seibel.lod.builders.lodTemplates.TriangularLodTemplate;
+import com.seibel.lod.builders.bufferBuilding.lodTemplates.AbstractLodTemplate;
+import com.seibel.lod.builders.bufferBuilding.lodTemplates.CubicLodTemplate;
+import com.seibel.lod.builders.bufferBuilding.lodTemplates.DynamicLodTemplate;
+import com.seibel.lod.builders.bufferBuilding.lodTemplates.TriangularLodTemplate;

 /**
 * Cubic, Triangular, Dynamic
 * 
 * @author James Seibel
- * @version 05-07-2021
+ * @version 10-10-2021
 */
 public enum LodTemplate
 {
-	// used for position
-
-	/** Chunks are rendered as
-	 * rectangular prisms. */
+	/**
+	 * LODs are rendered as
+	 * rectangular prisms.
+	 */
 	CUBIC(new CubicLodTemplate()),
 	
-	/** Chunks smoothly transition between
-	 * each other. */
+	/**
+	 * LODs smoothly transition between
+	 * each other.
+	 */
 	TRIANGULAR(new TriangularLodTemplate()),
 	
-	/** Chunks smoothly transition between
-	 * each other, unless a neighboring chunk
-	 * is at a significantly different height. */
+	/**
+	 * LODs smoothly transition between
+	 * each other, unless a neighboring LOD
+	 * is at a significantly different height.
+	 */
 	DYNAMIC(new DynamicLodTemplate());
 	
 	
 	public final AbstractLodTemplate template;
 	
-	private LodTemplate(AbstractLodTemplate newTemplate)
+	LodTemplate(AbstractLodTemplate newTemplate)
 	{
 		template = newTemplate;
 	}
+	
 }
@@ -1,69 +0,0 @@
-package com.seibel.lod.enums;
-
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.EnumSet;
-
-/** 
- * NE, SE, SW, NW <br>
- * NORTH, SOUTH, EAST, WEST, <br>
- * CENTER
- * 
- * @author James Seibel
- * @version 05-30-2021
- */
-public enum RelativeChunkPos
-{
-	/** +X, -Z */
-	NE(0, 1,-1),
-	/** +X, +Z */
-	SE(1, 1,1),
-	/** -X, +Z */
-	SW(2, -1,1),
-	/** -X, -Z */
-	NW(3, -1,-1),
-	
-	/** -Z */
-	NORTH(4, 0,-1),
-	/** +Z */
-	SOUTH(5, 0,1),
-	
-	/** +X */
-	EAST(6, 1,0),
-	/** -X */
-	WEST(7, -1,0),
-	
-	CENTER(8, 0,0);
-	
-	/** index used when referencing objects in an array */
-	public final int index;
-	
-	/** position relative to X CENTER */
-	public final int x;
-	/** position relative to Z CENTER */
-	public final int z;
-	
-	/** NORTH, SOUTH, EAST, WEST */
-	public static EnumSet<RelativeChunkPos> ADJACENT = EnumSet.of(NORTH, SOUTH, EAST, WEST);
-	/** NE, NW, SE, SW */
-	public static EnumSet<RelativeChunkPos> DIAGONAL = EnumSet.of(NE, NW, SE, SW);
-	
-	
-	public static EnumSet<RelativeChunkPos> NW_CORNER = EnumSet.of(WEST, NW, NORTH);
-	public static EnumSet<RelativeChunkPos> NE_CORNER = EnumSet.of(EAST, NE, NORTH);
-	public static EnumSet<RelativeChunkPos> SW_CORNER = EnumSet.of(WEST, SW, SOUTH);
-	public static EnumSet<RelativeChunkPos> SE_CORNER = EnumSet.of(EAST, SE, SOUTH);
-	
-	/** NW_CORNER, NE_CORNER, SW_CORNER, SE_CORNER <br>
-	 * Contains the 3 points surrounding a corner. */
-	public static ArrayList<EnumSet<RelativeChunkPos>> CORNERS = new ArrayList<EnumSet<RelativeChunkPos>>( Arrays.asList(NW_CORNER, NE_CORNER, SW_CORNER, SE_CORNER) );
-	
-	private RelativeChunkPos(int newIndex, int newX, int newZ)
-	{
-		index = newIndex;
-		x = newX;
-		z = newZ;
-	}
-}
-
-
@@ -0,0 +1,22 @@
+package com.seibel.lod.enums;
+
+/**
+ * NONE, GAME_SHADING
+ * 
+ * @author James Seibel
+ * @version 7-25-2020
+ */
+public enum ShadingMode
+{
+	/**
+	 * LODs will have darker sides and bottoms to simulate
+	 * Minecraft's fast lighting.
+	 */
+	GAME_SHADING,
+	
+	/**
+	 * LODs will use ambient occlusion to mimic Minecarft's
+	 * Fancy lighting.
+	 */
+	AMBIENT_OCCLUSION
+}
@@ -0,0 +1,45 @@
+/*
+ *    This file is part of the Distant Horizon mod (formerly the LOD Mod),
+ *    licensed under the GNU GPL v3 License.
+ *
+ *    Copyright (C) 2020  James Seibel
+ *
+ *    This program is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, version 3.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.seibel.lod.enums;
+
+/**
+ * None, Dynamic, Always
+ *
+ * <p>
+ * This represents how far the LODs should overlap with
+ * the vanilla Minecraft terrain.
+ * 
+ * @author James Seibel
+ * @version 10-11-2021
+ */
+public enum VanillaOverdraw
+{
+	/** Never draw LODs where a minecraft chunk could be. */
+	NEVER,
+	
+	/** Draw LODs over the farther minecraft chunks. */
+	DYNAMIC,
+	
+	/** Draw LODs over all minecraft chunks. */
+	ALWAYS,
+	
+	/** Draw LODs over border chunks. */
+	BORDER,
+}
@@ -0,0 +1,80 @@
+/*
+ *    This file is part of the Distant Horizon mod (formerly the LOD Mod),
+ *    licensed under the GNU GPL v3 License.
+ *
+ *    Copyright (C) 2020  James Seibel
+ *
+ *    This program is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, version 3.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.seibel.lod.enums;
+
+/**
+ * heightmap <br>
+ * multi_lod <br>
+ * 
+ * @author Leonardo Amato
+ * @version 10-07-2021
+ */
+public enum VerticalQuality
+{
+	LOW(
+			new int[] { 2,
+					2,
+					2,
+					2,
+					1,
+					1,
+					1,
+					1,
+					1,
+					1,
+					1 }
+	),
+	
+	MEDIUM(
+			new int[] { 4,
+					4,
+					2,
+					2,
+					2,
+					1,
+					1,
+					1,
+					1,
+					1,
+					1 }
+	),
+	
+	HIGH(
+			new int[] {
+					8,
+					8,
+					4,
+					4,
+					2,
+					2,
+					2,
+					1,
+					1,
+					1,
+					1 }
+	);
+	
+	public final int[] maxVerticalData;
+	
+	VerticalQuality(int[] maxVerticalData)
+	{
+		this.maxVerticalData = maxVerticalData;
+	}
+}
@@ -0,0 +1,74 @@
+/*
+ *    This file is part of the Distant Horizon mod (formerly the LOD Mod),
+ *    licensed under the GNU GPL v3 License.
+ *
+ *    Copyright (C) 2020  James Seibel
+ *
+ *    This program is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, version 3.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.seibel.lod.handlers;
+
+import java.io.File;
+
+import com.seibel.lod.util.LodUtil;
+import com.seibel.lod.wrappers.MinecraftWrapper;
+
+import net.minecraft.client.world.ClientWorld;
+import net.minecraft.util.math.ChunkPos;
+import net.minecraft.world.chunk.IChunk;
+import net.minecraft.world.chunk.storage.ChunkSerializer;
+import net.minecraft.world.server.ServerWorld;
+
+/**
+ * 
+ * @author ??
+ * @version ??
+ */
+public class ChunkLoader
+{
+	public static IChunk getChunkFromFile(ChunkPos pos){
+		
+		ClientWorld clientWorld = MinecraftWrapper.INSTANCE.getClientWorld();
+		if (clientWorld == null)
+			return null;
+		ServerWorld serverWorld = LodUtil.getServerWorldFromDimension(clientWorld.dimensionType());
+		try
+		{
+			File file = new File(serverWorld.getChunkSource().getDataStorage().dataFolder.getParent() + File.separatorChar + "region", "r." + (pos.x >> 5) + "." + (pos.z >> 5) + ".mca");
+			if(!file.exists())
+				return  null;
+			IChunk loadedChunk = ChunkSerializer.read(
+					serverWorld,
+					serverWorld.getStructureManager(),
+					serverWorld.getPoiManager(),
+					pos,
+					serverWorld.getChunkSource().chunkMap.read(pos)
+			);
+			boolean emptyChunk = true;
+			for(int i = 0; i < 16; i++){
+				for(int j = 0; j < 16; j++){
+					emptyChunk &= loadedChunk.isYSpaceEmpty(i,j);
+				}
+			}
+			if(emptyChunk)
+				return null;
+			else
+				return loadedChunk;
+		}
+		catch (Exception e)
+		{
+			return null;
+		}
+	}
+}
@@ -1,17 +1,46 @@
+/*
+ *    This file is part of the Distant Horizon mod (formerly the LOD Mod),
+ *    licensed under the GNU GPL v3 License.
+ *
+ *    Copyright (C) 2020  James Seibel
+ *
+ *    This program is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, version 3.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.seibel.lod.handlers;

-import java.io.BufferedReader;
 import java.io.File;
-import java.io.FileReader;
-import java.io.FileWriter;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
 import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.StandardCopyOption;
 import java.util.concurrent.ExecutorService;
 import java.util.concurrent.Executors;

-import com.seibel.lod.objects.LodChunk;
+import org.apache.commons.compress.compressors.xz.XZCompressorInputStream;
+import org.apache.commons.compress.compressors.xz.XZCompressorOutputStream;
+
+import com.seibel.lod.enums.DistanceGenerationMode;
+import com.seibel.lod.enums.VerticalQuality;
 import com.seibel.lod.objects.LodDimension;
 import com.seibel.lod.objects.LodRegion;
+import com.seibel.lod.objects.RegionPos;
+import com.seibel.lod.objects.VerticalLevelContainer;
 import com.seibel.lod.proxy.ClientProxy;
+import com.seibel.lod.util.LodThreadFactory;
+import com.seibel.lod.util.LodUtil;
+import com.seibel.lod.util.ThreadMapUtil;

 /**
 * This object handles creating LodRegions
@@ -19,170 +48,190 @@ import com.seibel.lod.proxy.ClientProxy;
 * to file.
 * 
 * @author James Seibel
- * @version 05-31-2021
+ * @author Cola
+ * @version 9-25-2021
 */
 public class LodDimensionFileHandler
 {
-	private LodDimension loadedDimension = null;
-	public long regionLastWriteTime[][];
+	/** This is the dimension that owns this file handler */
+	private LodDimension lodDimension;
 	
-	private File dimensionDataSaveFolder;
+	private final File dimensionDataSaveFolder;
 	
-	private final String FILE_NAME_PREFIX = "lod";
-	private final String FILE_EXTENSION = ".txt";
+	/** lod */
+	private static final String FILE_NAME_PREFIX = "lod";
+	/** .txt */
+	private static final String FILE_EXTENSION = ".xz";
+	/** detail- */
+	private static final String DETAIL_FOLDER_NAME_PREFIX = "detail-";
 	
-	/** This is the file version currently accepted by this
+	/**
+	 * .tmp <br>
+	 * Added to the end of the file path when saving to prevent
+	 * nulling a currently existing file. <br>
+	 * After the file finishes saving it will end with
+	 * FILE_EXTENSION.
+	 */
+	private static final String TMP_FILE_EXTENSION = ".tmp";
+	
+	/**
+	 * This is the file version currently accepted by this
 	 * file handler, older versions (smaller numbers) will be deleted and overwritten,
-	 * newer versions (larger numbers) will be ignored and won't be read. */
-	public static final int LOD_SAVE_FILE_VERSION = 1;
-	/** This is the string written before the file version */
-	private static final String LOD_FILE_VERSION_PREFIX = "lod_save_file_version";
+	 * newer versions (larger numbers) will be ignored and won't be read.
+	 */
+	public static final int LOD_SAVE_FILE_VERSION = 6;
 	
-	/** Allow saving asynchronously, but never try to save multiple regions
-	 * at a time */
-	private ExecutorService fileWritingThreadPool = Executors.newSingleThreadExecutor();
+	/**
+	 * Allow saving asynchronously, but never try to save multiple regions
+	 * at a time
+	 */
+	private final ExecutorService fileWritingThreadPool = Executors.newSingleThreadExecutor(new LodThreadFactory(this.getClass().getSimpleName()));
 	
 	
-	public LodDimensionFileHandler(File newSaveFolder, LodDimension newLoadedDimension)
+	
+	
+	public LodDimensionFileHandler(File newSaveFolder, LodDimension newLodDimension)
 	{
 		if (newSaveFolder == null)
 			throw new IllegalArgumentException("LodDimensionFileHandler requires a valid File location to read and write to.");
 		
 		dimensionDataSaveFolder = newSaveFolder;
-		
-		loadedDimension = newLoadedDimension;
-		// these two variable are used in sync with the LodDimension
-		regionLastWriteTime = new long[loadedDimension.getWidth()][loadedDimension.getWidth()];
-		for(int i = 0; i < loadedDimension.getWidth(); i++)
-			for(int j = 0; j < loadedDimension.getWidth(); j++)
-				regionLastWriteTime[i][j] = -1;
+		lodDimension = newLodDimension;
 	}
 	
 	
 	
-	
-	
 	//================//
 	// read from file //
 	//================//
 	
-	
-	
 	/**
-	 * Return the LodRegion at the given coordinates.
-	 * (null if the file doesn't exist)
+	 * Returns the LodRegion at the given coordinates.
+	 * Returns an empty region if the file doesn't exist.
 	 */
-	public LodRegion loadRegionFromFile(int regionX, int regionZ)
+	public LodRegion loadRegionFromFile(byte detailLevel, RegionPos regionPos, DistanceGenerationMode generationMode, VerticalQuality verticalQuality)
 	{
-		String fileName = getFileNameAndPathForRegion(regionX, regionZ);
+		int regionX = regionPos.x;
+		int regionZ = regionPos.z;
+		LodRegion region = new LodRegion(LodUtil.REGION_DETAIL_LEVEL, regionPos, generationMode, verticalQuality);
 		
-		File f = new File(fileName);
-		
-		if (!f.exists())
+		for (byte tempDetailLevel = LodUtil.REGION_DETAIL_LEVEL; tempDetailLevel >= detailLevel; tempDetailLevel--)
 		{
-			// there wasn't a file, don't
-			// return anything
-			return null;
-		}
-		
-		LodRegion region = new LodRegion(regionX, regionZ);
-		
-		try
-		{
-			BufferedReader br = new BufferedReader(new FileReader(f));
-			String s = br.readLine();
-			int fileVersion = -1;
+			String fileName = getFileNameAndPathForRegion(regionX, regionZ, generationMode, tempDetailLevel, verticalQuality);
+			
+			try
+			{
+				// if the fileName was null that means the folder is inaccessible
+				// for some reason
+				if (fileName == null)
+					throw new IllegalArgumentException("Unable to read region [" + regionX + ", " + regionZ + "] file, no fileName.");
+				
+				File file = new File(fileName);
+				if (!file.exists())
+				{
+					//there is no file for current gen mode
+					//search others above current from the most to the least detailed
+					DistanceGenerationMode tempGenMode = DistanceGenerationMode.SERVER;
+					while (tempGenMode != generationMode)
+					{
+						fileName = getFileNameAndPathForRegion(regionX, regionZ, tempGenMode, tempDetailLevel, verticalQuality);
+						if (fileName != null)
+						{
+							file = new File(fileName);
+							if (file.exists())
+								break;
+						}
+						//decrease gen mode
+						if (tempGenMode == DistanceGenerationMode.SERVER)
+							tempGenMode = DistanceGenerationMode.FEATURES;
+						else if (tempGenMode == DistanceGenerationMode.FEATURES)
+							tempGenMode = DistanceGenerationMode.SURFACE;
+						else if (tempGenMode == DistanceGenerationMode.SURFACE)
+							tempGenMode = DistanceGenerationMode.BIOME_ONLY_SIMULATE_HEIGHT;
+						else if (tempGenMode == DistanceGenerationMode.BIOME_ONLY_SIMULATE_HEIGHT)
+							tempGenMode = DistanceGenerationMode.BIOME_ONLY;
+						else if (tempGenMode == DistanceGenerationMode.BIOME_ONLY)
+							tempGenMode = DistanceGenerationMode.NONE;
+					}
+					if (!file.exists())
+						//there wasn't a file, don't return anything
+						continue;
+				}
+				
+				
+				
+				// don't try parsing empty files
+				long dataSize = file.length();
+				dataSize -= 1;
+				if (dataSize > 0)
+				{
+					try (XZCompressorInputStream inputStream = new XZCompressorInputStream(new FileInputStream(file)))
+					{
+						int fileVersion;
+						fileVersion = inputStream.read();
 						
-			if(s != null && !s.isEmpty())
-			{
-				// try to get the file version
-				try
-				{
-					fileVersion = Integer.parseInt(s.substring(s.indexOf(' ')).trim());
-				}
-				catch(NumberFormatException | StringIndexOutOfBoundsException e)
-				{
-					// this file doesn't have a version
-					// keep the version as -1
-					fileVersion = -1;
-				}
-				
-				// check if this file can be read by this file handler
-				if(fileVersion < LOD_SAVE_FILE_VERSION)
-				{
-					// the file we are reading is an older version,
-					// close the reader and delete the file.
-					br.close();
-					f.delete();
-					ClientProxy.LOGGER.info("Outdated LOD region file for region: (" + regionX + "," + regionZ + ") version: " + fileVersion +
-							", version requested: " + LOD_SAVE_FILE_VERSION +
-							" File was been deleted.");
-					
-					return null;
-				}
-				else if(fileVersion > LOD_SAVE_FILE_VERSION)
-				{
-					// the file we are reading is a newer version,
-					// close the reader and ignore the file, we don't
-					// want to accidently delete anything the user may want.
-					br.close();
-					ClientProxy.LOGGER.info("Newer LOD region file for region: (" + regionX + "," + regionZ + ") version: " + fileVersion + 
-							", version requested: " + LOD_SAVE_FILE_VERSION +
-							" this region will not be written to in order to protect the newer file.");
-					
-					return null;
+						// check if this file can be read by this file handler
+						if (fileVersion < LOD_SAVE_FILE_VERSION)
+						{
+							// the file we are reading is an older version,
+							// close the reader and delete the file.
+							inputStream.close();
+							file.delete();
+							ClientProxy.LOGGER.info("Outdated LOD region file for region: (" + regionX + "," + regionZ + ")"
+									+ " version found: " + fileVersion
+									+ ", version requested: " + LOD_SAVE_FILE_VERSION
+									+ ". File was been deleted.");
+							
+							break;
+						}
+						else if (fileVersion > LOD_SAVE_FILE_VERSION)
+						{
+							// the file we are reading is a newer version,
+							// close the reader and ignore the file, we don't
+							// want to accidentally delete anything the user may want.
+							inputStream.close();
+							ClientProxy.LOGGER.info("Newer LOD region file for region: (" + regionX + "," + regionZ + ")"
+									+ " version found: " + fileVersion
+									+ ", version requested: " + LOD_SAVE_FILE_VERSION
+									+ " this region will not be written to in order to protect the newer file.");
+							
+							break;
+						}
+						
+						
+						// this file is a readable version, 
+						// read the file
+						byte[] data = ThreadMapUtil.getSaveContainer(tempDetailLevel);
+						inputStream.read(data);
+						inputStream.close();
+						
+						
+						// add the data to our region
+						region.addLevelContainer(new VerticalLevelContainer(data));
+					}
+					catch (IOException ioEx)
+					{
+						ClientProxy.LOGGER.error("LOD file read error. Unable to read to [" + fileName + "] error [" + ioEx.getMessage() + "]: ");
+						ioEx.printStackTrace();
+					}
 				}
 			}
-			else
+			catch (Exception e)
 			{
-				// there is no data in this file
-				br.close();
-				return null;
+				// the buffered reader encountered a
+				// problem reading the file
+				ClientProxy.LOGGER.error("LOD file read error. Unable to read to [" + fileName + "] error [" + e.getMessage() + "]: ");
+				e.printStackTrace();
 			}
-			
-			
-			// this file is a readable version, begin reading the file
-			s = br.readLine();
-			
-			while(s != null && !s.isEmpty())
-			{
-				try
-				{
-					// convert each line into an LOD object and add it to the region
-					LodChunk lod = new LodChunk(s);
-					
-					region.addLod(lod);
-				}
-				catch(IllegalArgumentException e)
-				{
-					// we were unable to create this chunk
-					// for whatever reason.
-					// skip to the next chunk
-					ClientProxy.LOGGER.warn(e.getMessage());
-				}
-				
-				s = br.readLine();
-			}
-			
-			br.close();
-		}
-		catch (IOException e)
-		{
-			// the buffered reader encountered a 
-			// problem reading the file
-			return null;
-		}
+		}// for each detail level
+		
+		if (region.getMinDetailLevel() >= detailLevel)
+			region.growTree(detailLevel);
 		
 		return region;
 	}
 	
 	
-	
-	
-	
-	
-	
-	
 	//==============//
 	// Save to File //
 	//==============//
@@ -195,21 +244,28 @@ public class LodDimensionFileHandler
 		fileWritingThreadPool.execute(saveDirtyRegionsThread);
 	}
 	
-	private Thread saveDirtyRegionsThread = new Thread(() -> 
+	private final Thread saveDirtyRegionsThread = new Thread(() ->
 	{
-		for(int i = 0; i < loadedDimension.getWidth(); i++)
+		try
 		{
-			for(int j = 0; j < loadedDimension.getWidth(); j++)
+			for (int i = 0; i < lodDimension.getWidth(); i++)
 			{
-				if(loadedDimension.isRegionDirty[i][j] && loadedDimension.regions[i][j] != null)
+				for (int j = 0; j < lodDimension.getWidth(); j++)
 				{
-					saveRegionToDisk(loadedDimension.regions[i][j]);
-					loadedDimension.isRegionDirty[i][j] = false;
+					if (lodDimension.GetIsRegionDirty(i, j) && lodDimension.getRegionByArrayIndex(i, j) != null)
+					{
+						saveRegionToFile(lodDimension.getRegionByArrayIndex(i, j));
+						lodDimension.SetIsRegionDirty(i, j, false);
+					}
 				}
 			}
 		}
+		catch (Exception e)
+		{
+			e.printStackTrace();
+		}
 	});
- 	
+	
 	/**
 	 * Save a specific region to disk.<br>
 	 * Note: <br>
@@ -218,88 +274,91 @@ public class LodDimensionFileHandler
 	 * 2. This will save to the LodDimension that this
 	 * handler is associated with.
 	 */
-	private void saveRegionToDisk(LodRegion region)
+	private void saveRegionToFile(LodRegion region)
 	{
-		// convert chunk coordinates to region
-		// coordinates
-		int x = region.x;
-		int z = region.z;
-		
-		File f = new File(getFileNameAndPathForRegion(x, z));
-		
-		try
+		for (byte detailLevel = region.getMinDetailLevel(); detailLevel <= LodUtil.REGION_DETAIL_LEVEL; detailLevel++)
 		{
-			// make sure the file and folder exists
-			if (!f.exists())
+			String fileName = getFileNameAndPathForRegion(region.regionPosX, region.regionPosZ, region.getGenerationMode(), detailLevel, region.getVerticalQuality());
+			
+			// if the fileName was null that means the folder is inaccessible
+			// for some reason
+			if (fileName == null)
 			{
-				// the file doesn't exist,
-				// create it and the folder if need be
-				if(!f.getParentFile().exists())
-					f.getParentFile().mkdirs();
-				f.createNewFile();
+				ClientProxy.LOGGER.warn("Unable to save region [" + region.regionPosX + ", " + region.regionPosZ + "] to file, file is inaccessible.");
+				return;
 			}
-			else
+			File oldFile = new File(fileName);
+			//ClientProxy.LOGGER.info("saving region [" + region.regionPosX + ", " + region.regionPosZ + "] to file.");
+			
+			try
 			{
-				// the file exists, make sure it
-				// is the correct version.
-				// (to make sure we don't overwrite a newer
-				// version file if it exists)
-				
-				BufferedReader br = new BufferedReader(new FileReader(f));
-				String s = br.readLine();
-				int fileVersion = LOD_SAVE_FILE_VERSION;
-							
-				if(s != null && !s.isEmpty())
+				// make sure the file and folder exists
+				if (!oldFile.exists())
 				{
-					// try to get the file version
-					try
-					{
-						fileVersion = Integer.parseInt(s.substring(s.indexOf(' ')).trim());
-					}
-					catch(NumberFormatException | StringIndexOutOfBoundsException e)
-					{
-						// this file doesn't have a correctly formated version
-						// just overwrite the file
-					}
+					// the file doesn't exist,
+					// create it and the folder if need be
+					if (!oldFile.getParentFile().exists())
+						oldFile.getParentFile().mkdirs();
+					oldFile.createNewFile();
 				}
-				br.close();
-				
-				// check if this file can be written to by the file handler
-				if(fileVersion <= LOD_SAVE_FILE_VERSION)
+				else
 				{
-					// we are good to continue and overwrite the old file
+					// the file exists, make sure it
+					// is the correct version.
+					// (to make sure we don't overwrite a newer
+					// version file if it exists)
+					int fileVersion = LOD_SAVE_FILE_VERSION;
+					try (XZCompressorInputStream inputStream = new XZCompressorInputStream(new FileInputStream(oldFile)))
+					{
+						fileVersion = inputStream.read();
+						inputStream.close();
+					}
+					catch (IOException ex)
+					{
+						ex.printStackTrace();
+					}
+					
+					// check if this file can be written to by the file handler
+					if (fileVersion > LOD_SAVE_FILE_VERSION)
+					{
+						// the file we are reading is a newer version,
+						// don't write anything, we don't want to accidentally
+						// delete anything the user may want.
+						return;
+					}
+					
+					// if we got this far then we are good
+					// to overwrite the old file
 				}
-				else //if(fileVersion > LOD_SAVE_FILE_VERSION)
+				
+				// the old file is good, now create a new temporary save file
+				File newFile = new File(fileName + TMP_FILE_EXTENSION);
+				try (XZCompressorOutputStream outputStream = new XZCompressorOutputStream(new FileOutputStream(newFile), 3))
 				{
-					// the file we are reading is a newer version,
-					// don't write anything, we don't want to accidently 
-					// delete anything the user may want.
-					return;
+					// add the version of this file
+					outputStream.write(LOD_SAVE_FILE_VERSION);
+					
+					// add each LodChunk to the file
+					outputStream.write(region.getLevel(detailLevel).toDataString());
+					outputStream.close();
+					
+					// overwrite the old file with the new one
+					Files.move(newFile.toPath(), oldFile.toPath(), StandardCopyOption.ATOMIC_MOVE, StandardCopyOption.REPLACE_EXISTING);
+				}
+				catch (IOException ex)
+				{
+					ex.printStackTrace();
 				}
 			}
-			
-			FileWriter fw = new FileWriter(f);
-			
-			// add the version of this file
-			fw.write(LOD_FILE_VERSION_PREFIX + " " + LOD_SAVE_FILE_VERSION + "\n");
-			
-			// add each LodChunk to the file
-			for(LodChunk[] chunkArray : region.getAllLods())
-				for(LodChunk chunk : chunkArray)
-					if(chunk != null && !chunk.isPlaceholder())
-						fw.write(chunk.toData() + "\n");
-			
-			fw.close();
-		}
-		catch(Exception e)
-		{
-			ClientProxy.LOGGER.error("LOD file write error: " + e.getMessage());
+			catch (Exception e)
+			{
+				ClientProxy.LOGGER.error("LOD file write error. Unable to write to [" + fileName + "] error [" + e.getMessage() + "]: ");
+				e.printStackTrace();
+			}
 		}
 	}
 	
 	
- 	
-	
 	
 	
 	
@@ -309,23 +368,32 @@ public class LodDimensionFileHandler
 	
 	
 	/**
-	 * Return the name of the file that should contain the 
+	 * Return the name of the file that should contain the
 	 * region at the given x and z. <br>
-	 * Returns null if this object isn't ready to read and write.
+	 * Returns null if this object isn't available to read and write. <br><br>
+	 * <p>
+	 * example: "lod.0.0.txt" <br>
+	 * <p>
+	 * Returns null if there is an IO or security Exception.
 	 */
-	private String getFileNameAndPathForRegion(int regionX, int regionZ)
+	private String getFileNameAndPathForRegion(int regionX, int regionZ, DistanceGenerationMode generationMode, byte detailLevel, VerticalQuality verticalQuality)
 	{
 		try
 		{
 			// saveFolder is something like
-			// ".\Super Flat\DIM-1\data"
+			// ".\Super Flat\DIM-1\data\"
 			// or
-			// ".\Super Flat\data"
-			return dimensionDataSaveFolder.getCanonicalPath() + "\\" +
+			// ".\Super Flat\data\"
+			return dimensionDataSaveFolder.getCanonicalPath() + File.separatorChar +
+					verticalQuality + File.separatorChar +
+					generationMode.toString() + File.separatorChar +
+					DETAIL_FOLDER_NAME_PREFIX + detailLevel + File.separatorChar +
 					FILE_NAME_PREFIX + "." + regionX + "." + regionZ + FILE_EXTENSION;
 		}
-		catch(IOException e)
+		catch (IOException | SecurityException e)
 		{
+			ClientProxy.LOGGER.warn("Unable to get the filename for the region [" + regionX + ", " + regionZ + "], error: [" + e.getMessage() + "], stacktrace: ");
+			e.printStackTrace();
 			return null;
 		}
 	}
@@ -1,10 +1,30 @@
+/*
+ *    This file is part of the Distant Horizon mod (formerly the LOD Mod),
+ *    licensed under the GNU GPL v3 License.
+ *
+ *    Copyright (C) 2020  James Seibel
+ *
+ *    This program is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, version 3.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.seibel.lod.handlers;

 import java.lang.reflect.Field;
+import java.lang.reflect.Method;

 import com.seibel.lod.enums.FogQuality;
-
-import net.minecraft.client.Minecraft;
+import com.seibel.lod.proxy.ClientProxy;
+import com.seibel.lod.wrappers.MinecraftWrapper;

 /**
 * This object is used to get variables from methods
@@ -12,36 +32,38 @@ import net.minecraft.client.Minecraft;
 * in Optifine.
 * 
 * @author James Seibel
- * @version 09-21-2020
+ * @version 9-25-2021
 */
 public class ReflectionHandler
 {
-	private Minecraft mc = Minecraft.getInstance();
+	public static final ReflectionHandler INSTANCE = new ReflectionHandler();
+	private final MinecraftWrapper mc = MinecraftWrapper.INSTANCE;
+	
 	public Field ofFogField = null;
+	public Method vertexBufferUploadMethod = null;
 	
 	
-	public ReflectionHandler()
+	
+	private ReflectionHandler()
 	{
 		setupFogField();
 	}
 	
 	
-	
-	
 	/**
-	 * Similar to setupFovMethod.
+	 * finds the Optifine fog type field
 	 */
 	private void setupFogField()
 	{
 		// get every variable from the entity renderer
-		Field[] vars = mc.gameSettings.getClass().getDeclaredFields();
-				
+		Field[] optionFields = mc.getOptions().getClass().getDeclaredFields();
+		
 		// try and find the ofFogType variable in gameSettings
-		for(Field f : vars)
+		for (Field field : optionFields)
 		{
-			if(f.getName().equals("ofFogType"))
+			if (field.getName().equals("ofFogType"))
 			{
-				ofFogField = f;
+				ofFogField = field;
 				return;
 			}
 		}
@@ -49,13 +71,12 @@ public class ReflectionHandler
 		// we didn't find the field,
 		// either optifine isn't installed, or
 		// optifine changed the name of the variable
-		ofFogField = null;
+		ClientProxy.LOGGER.info(ReflectionHandler.class.getSimpleName() + ": unable to find the Optifine fog field. If Optifine isn't installed this can be ignored.");
 	}
 	
 	
 	
 	
-	
 	/**
 	 * Get what type of fog optifine is currently set to render.
 	 */
@@ -73,7 +94,7 @@ public class ReflectionHandler
 		
 		try
 		{
-			returnNum = (int)ofFogField.get(mc.gameSettings);
+			returnNum = (int) ofFogField.get(mc.getOptions());
 		}
 		catch (IllegalArgumentException | IllegalAccessException e)
 		{
@@ -82,18 +103,18 @@ public class ReflectionHandler
 		
 		switch (returnNum)
 		{
-			case 0:
-				return FogQuality.FAST;
-			case 1:
-				return FogQuality.FAST;
-			case 2:
-				return FogQuality.FANCY;
-			case 3:
-				return FogQuality.OFF;
-				
-			default:
-				return FogQuality.FAST;
+		default:
+		case 0:
+			// optifine's "default" option,
+			// it should never be called in this case
+			
+			// normal options
+		case 1:
+			return FogQuality.FAST;
+		case 2:
+			return FogQuality.FANCY;
+		case 3:
+			return FogQuality.OFF;
 		}
 	}
-	
 }
@@ -1,3 +1,22 @@
+/*
+ *    This file is part of the Distant Horizon mod (formerly the LOD Mod),
+ *    licensed under the GNU GPL v3 License.
+ *
+ *    Copyright (C) 2020  James Seibel
+ *
+ *    This program is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, version 3.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.seibel.lod.mixin;

 import org.spongepowered.asm.mixin.Mixin;
@@ -7,7 +26,7 @@ import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;

 import com.mojang.blaze3d.matrix.MatrixStack;
 import com.seibel.lod.LodMain;
-import com.seibel.lod.util.LodConfig;
+import com.seibel.lod.config.LodConfig;

 import net.minecraft.client.renderer.RenderType;
 import net.minecraft.client.renderer.WorldRenderer;
@@ -15,18 +34,19 @@ import net.minecraft.client.renderer.WorldRenderer;
 /**
 * This class is used to mix in my rendering code
 * before Minecraft starts rendering blocks.
- * If this wasn't done the LODs would render on top
+ * If this wasn't done, and we used Forge's
+ * render last event, the LODs would render on top
 * of the normal terrain.
 * 
 * @author James Seibel
- * @version 05-29-2021
+ * @version 9-19-2021
 */
@Mixin(WorldRenderer.class)
 public class MixinWorldRenderer
 {
 	private static float previousPartialTicks = 0;
 	
-	@Inject(at = @At("RETURN"), method = "renderSky(Lcom/mojang/blaze3d/matrix/MatrixStack;F)V", cancellable = false)
+	@Inject(at = @At("RETURN"), method = "renderSky(Lcom/mojang/blaze3d/matrix/MatrixStack;F)V")
 	private void renderSky(MatrixStack matrixStackIn, float partialTicks, CallbackInfo callback)
 	{
 		// get the partial ticks since renderBlockLayer doesn't
@@ -34,12 +54,12 @@ public class MixinWorldRenderer
 		previousPartialTicks = partialTicks;
 	}
 	
-	@Inject(at = @At("HEAD"), method = "renderBlockLayer(Lnet/minecraft/client/renderer/RenderType;Lcom/mojang/blaze3d/matrix/MatrixStack;DDD)V", cancellable = false)
-	private void renderBlockLayer(RenderType renderType, MatrixStack matrixStackIn, double xIn, double yIn, double zIn, CallbackInfo callback)
+	@Inject(at = @At("HEAD"), method = "renderChunkLayer(Lnet/minecraft/client/renderer/RenderType;Lcom/mojang/blaze3d/matrix/MatrixStack;DDD)V")
+	private void renderChunkLayer(RenderType renderType, MatrixStack matrixStackIn, double xIn, double yIn, double zIn, CallbackInfo callback)
 	{
 		// only render if LODs are enabled and
 		// only render before solid blocks
-		if (LodConfig.CLIENT.drawLODs.get() && renderType.equals(RenderType.getSolid()))
-			LodMain.client_proxy.renderLods(previousPartialTicks);
+		if (LodConfig.CLIENT.advancedModOptions.debugging.drawLods.get() && renderType.equals(RenderType.solid()))
+			LodMain.client_proxy.renderLods(matrixStackIn, previousPartialTicks);
 	}
 }
@@ -0,0 +1,115 @@
+/*
+ *    This file is part of the Distant Horizon mod (formerly the LOD Mod),
+ *    licensed under the GNU GPL v3 License.
+ *
+ *    Copyright (C) 2020  James Seibel
+ *
+ *    This program is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, version 3.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.seibel.lod.objects;
+
+/**
+ * A level container is a quad tree level
+ */
+public interface LevelContainer
+{
+	/**
+	 * With this you can add data to the level container
+	 * @param data actual data to add in an array of long format.
+	 * @param posX x position in the detail level
+	 * @param posZ z position in the detail level
+	 * @param index z position in the detail level
+	 * @return true if correctly added, false otherwise
+	 */
+	boolean addData(long data, int posX, int posZ, int index);
+	
+	/**
+	 * With this you can add data to the level container
+	 * @param data actual data to add in an array of long[] format.
+	 * @param posX x position in the detail level
+	 * @param posZ z position in the detail level
+	 * @return true if correctly added, false otherwise
+	 */
+	boolean addVerticalData(long[] data, int posX, int posZ);
+	
+	/**
+	 * With this you can add data to the level container
+	 * @param data actual data to add in an array of long format.
+	 * @param posX x position in the detail level
+	 * @param posZ z position in the detail level
+	 * @return true if correctly added, false otherwise
+	 */
+	boolean addSingleData(long data, int posX, int posZ);
+	
+	/**
+	 * With this you can get data from the level container
+	 * @param posX x position in the detail level
+	 * @param posZ z position in the detail level
+	 * @return the data in long array format
+	 */
+	long getData(int posX, int posZ, int index);
+	
+	/**
+	 * With this you can get data from the level container
+	 * @param posX x position in the detail level
+	 * @param posZ z position in the detail level
+	 * @return the data in long array format
+	 */
+	long getSingleData(int posX, int posZ);
+	
+	/**
+	 * @param posX x position in the detail level
+	 * @param posZ z position in the detail level
+	 * @return true only if the data exist
+	 */
+	boolean doesItExist(int posX, int posZ);
+	
+	/**
+	 * @return return the detailLevel of this level container
+	 */
+	byte getDetailLevel();
+	
+	
+	int getMaxVerticalData();
+	
+	/** Clears the dataPoint at the given array index */
+	void clear(int posX, int posZ);
+	
+	/**
+	 * This return a level container with detail level lower than the current level.
+	 * The new level container may use information of this level.
+	 * @return the new level container
+	 */
+	LevelContainer expand();
+	
+	/**
+	 * @param lowerLevelContainer lower level where we extract the data
+	 * @param posX x position in the detail level to update
+	 * @param posZ z position in the detail level to update
+	 */
+	void updateData(LevelContainer lowerLevelContainer, int posX, int posZ);
+	
+	/**
+	 * This will give the data to save in the file
+	 * @return data as a String
+	 */
+	byte[] toDataString();
+	
+	
+	/**
+	 * This will give the data to save in the file
+	 * @return data as a String
+	 */
+	int getMaxNumberOfLods();
+}
@@ -1,313 +0,0 @@
-package com.seibel.lod.objects;
-
-import java.awt.Color;
-
-import com.seibel.lod.enums.ColorDirection;
-
-import net.minecraft.util.math.ChunkPos;
-
-/**
- * This object contains position
- * and color data for an LOD object.
- * 
- * @author James Seibel
- * @version 05-29-2021
- */
-public class LodChunk
-{
-	/** how many different pieces of data are in one line */
-	private static final int DATA_DELIMITER_COUNT = 22;
-
-	/** This is what separates each piece of data in the toData method */
-	public static final char DATA_DELIMITER = ',';
-	
-	/** Width of a Minecraft Chunk */
-	public static final int WIDTH = 16;
-	
-	private static final Color INVISIBLE = new Color(0,0,0,0);
-	
-	
-	
-	/** The x coordinate of the chunk. */
-	public int x = 0;
-	/** The z coordinate of the chunk. */
-	public int z = 0;
-	
-	/*
-	 * The reason we are only using 1 height and depth point
-	 * instead of multiple is because:
-	 * 1. more points would drastically increase the amount of
-	 * 		memory and disk space needed
-	 * 2. more height/depth points require more color points,
-	 * 		which can get out of hand quickly
-	 * 3. with the increased disk space reading/writing would
-	 * 		take far too long
-	 * 4. the increased resolution is generally not worth it,
-	 * 		4 LODs per chunk is the limit of diminishing returns.
-	 * 		And some of that could potentially be faked through 
-	 * 		smart LodTemplates
-	 */
-	private short height;
-	private short depth;
-	
-	/** The average color for the 6 cardinal directions */
-	public Color colors[];
-	
-	/** If true then this LodChunk contains no data */
-	private boolean empty = false;
-	
-	
-	/**
-	 * Create an empty invisible LodChunk at (0,0)
-	 */
-	public LodChunk()
-	{
-		empty = true;
-		
-		x = 0;
-		z = 0;
-		
-		height = 0;
-		depth = 0;
-		colors = new Color[ColorDirection.values().length];
-		
-		// by default have the colors invisible
-		for(ColorDirection dir : ColorDirection.values())
-			colors[dir.value] = INVISIBLE;
-	}
-	
-	
-	/**
-	 * Creates an LodChunk from the string
-	 * generated by the toData method.
-	 * 
-	 * @throws IllegalArgumentException if the data isn't valid to create a LodChunk
-	 * @throws NumberFormatException if any piece of data can't be converted at any point
-	 */
-	public LodChunk(String data) throws IllegalArgumentException, NumberFormatException
-	{
-		/*
-		 * data format:
-		 * x, z, height, depth, rgb color data
-		 * 
-		 * example:
-		 * 5,8, 4, 0, 255,255,255, 255,255,255, 255,255,255, 255,255,255, 255,255,255, 255,255,255,
-		 */
-		
-		// make sure there are the correct number of entries
-		// in the data string (28)
-		int count = 0;
-		
-		for(int i = 0; i < data.length(); i++)
-			if(data.charAt(i) == DATA_DELIMITER)
-				count++;
-		
-		if(count != DATA_DELIMITER_COUNT)
-			throw new IllegalArgumentException("LodChunk constructor givin an invalid string. The data given had " + count + " delimiters when it should have had " + DATA_DELIMITER_COUNT + ".");
-		
-		
-		
-		// index we will use when going through the String
-		int index = 0;
-		int lastIndex = 0;
-		
-		
-		
-		// x and z position
-		index = data.indexOf(DATA_DELIMITER, 0);
-		x = Integer.parseInt(data.substring(0,index));
-		
-		lastIndex = index;
-		index = data.indexOf(DATA_DELIMITER, lastIndex+1);
-		z = Integer.parseInt(data.substring(lastIndex+1,index));
-		
-		// height
-		lastIndex = index;
-		index = data.indexOf(DATA_DELIMITER, lastIndex+1);
-		height = Short.parseShort(data.substring(lastIndex+1,index));
-		
-		// depth
-		lastIndex = index;
-		index = data.indexOf(DATA_DELIMITER, lastIndex+1);
-		depth = Short.parseShort(data.substring(lastIndex+1,index));
-		
-		
-		
-		// color
-		colors = new Color[6];
-		for(ColorDirection dir : ColorDirection.values())
-		{
-			int red = 0;
-			int green = 0;
-			int blue = 0;
-			
-			// get r,g,b
-			for(int i = 0; i < 3; i++)
-			{
-				lastIndex = index;
-				index = data.indexOf(DATA_DELIMITER, lastIndex + 1);
-				
-				String raw = "";
-				switch(i)
-				{
-				case 0:
-					raw = data.substring(lastIndex+1,index);
-					red = Short.parseShort(raw);
-					break;
-				case 1:
-					raw = data.substring(lastIndex+1,index);
-					green = Short.parseShort(raw);
-					break;
-				case 2:
-					raw = data.substring(lastIndex+1,index);
-					blue = Short.parseShort(raw);
-					break;
-				}
-			}
-			
-			colors[dir.value] = new Color(red, green, blue);
-		}
-		
-		
-		// after going through all this
-		// is this LOD empty?
-		empty = determineIfEmtpy();
-	}
-	
-	/**
-	 * Create a LodChunk from the given values.
-	 */
-	public LodChunk(ChunkPos pos, short newHeight, short newDepth, Color[] newColors)
-	{
-		x = pos.x;
-		z = pos.z;
-		
-		height = newHeight;
-		depth = newDepth;
-		colors = newColors;
-		
-		empty = determineIfEmtpy();
-	}
-	
-	
-	
-	
-	
-	
-	//================//
-	// misc functions //
-	//================//
-	
-	/**
-	 * Returns true if this LodChunk is an emptyPlaceholder
-	 */
-	public boolean isPlaceholder()
-	{
-		return empty;
-	}
-	
-	public boolean isLodEmpty()
-	{
-		return empty;
-	}
-	
-	/**
-	 * Returns true if this LOD is either invisible
-	 * from every direction or doesn't have a valid height.
-	 */
-	private boolean determineIfEmtpy()
-	{
-		// we don't check the depth since the
-		// height should always be greater than or equal
-		// to the depth
-		if(height >= 0)
-		{
-			// the height is valid,
-			// do we have at least 1 non-invisible color?
-			
-			for(ColorDirection dir : ColorDirection.values())
-				if(!colors[dir.value].equals(INVISIBLE))
-					// at least one direction has a non-invisible color
-					return false;
-			
-			return true;
-		}
-		else
-		{
-			// the height is negative,
-			// this LodChunk is empty
-			return true;
-		}
-	}
-	
-	
-	
-	
-	//========//
-	// output //
-	//========//
-	
-	/** Returns the color for the given direction */
-	public Color getColor(ColorDirection dir)
-	{
-		return colors[dir.value];
-	}
-	
-	public short getHeight()
-	{
-		return height;
-	}
-	
-	public short getDepth()
-	{
-		return depth;
-	}
-	
-	
-	
-	
-	
-	/**
-	 * Outputs all data in csv format
-	 * with the given delimiter.
-	 * <br>
-	 * Exports data in the form:
-	 * <br>
-	 * x, z, height, depth, rgb color data
-	 * 
-	 * <br>
-	 * example output:
-	 * <br>
-	 * 5,8, 4, 0, 255,255,255, 255,255,255, 255,255,255, 255,255,255, 255,255,255, 255,255,255,
-	 */
-	public String toData()
-	{
-		String s = "";
-		
-		s += Integer.toString(x) + DATA_DELIMITER +  Integer.toString(z) + DATA_DELIMITER;
-		
-		s += Short.toString(height) + DATA_DELIMITER;
-		
-		s += Short.toString(depth) + DATA_DELIMITER;
-		
-		for(int i = 0; i < colors.length; i++)
-		{
-			s += Integer.toString(colors[i].getRed()) + DATA_DELIMITER + Integer.toString(colors[i].getGreen()) + DATA_DELIMITER + Integer.toString(colors[i].getBlue()) + DATA_DELIMITER;
-		}
-		
-		return s;
-	}
-	
-	
-	@Override
-	public String toString()
-	{
-		String s = "";
-		
-		s += "x: " + x + " z: " + z + "\t";
-		
-		s += "(" + colors[ColorDirection.TOP.value].getRed() + ", " + colors[ColorDirection.TOP.value].getGreen() + ", " + colors[ColorDirection.TOP.value].getBlue() + ")";
-		
-		return s;
-	}
-}
@@ -1,90 +1,625 @@
+/*
+ *    This file is part of the Distant Horizon mod (formerly the LOD Mod),
+ *    licensed under the GNU GPL v3 License.
+ *
+ *    Copyright (C) 2020  James Seibel
+ *
+ *    This program is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, version 3.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.seibel.lod.objects;

+import com.seibel.lod.enums.DistanceGenerationMode;
+import com.seibel.lod.enums.VerticalQuality;
+import com.seibel.lod.util.DataPointUtil;
+import com.seibel.lod.util.DetailDistanceUtil;
+import com.seibel.lod.util.LevelPosUtil;
+import com.seibel.lod.util.LodUtil;
+
 /**
- * A LodRegion is the a 32x32
- * 2D array of LodChunk objects.
- * Each LodRegion corresponds to
- * one file in the file system.
+ * This object holds all loaded LevelContainers acting as a quad tree
+ * for a given region. <Br><Br>
+ *
+ * <strong>Coordinate Standard: </strong><br>
+ * Coordinate called posX or posZ are relative LevelPos coordinates <br>
+ * unless stated otherwise. <br>
 * 
- * @author James Seibel
- * @version 1-22-2021
+ * @author Leonardo Amato
+ * @version 10-10-2021
 */
 public class LodRegion
 {
-	/** number of chunks wide */
-	public static final int SIZE = 32;
-	
-	/**	X coordinate of this region */
-	public final int x;
-	/** Z coordinate of this region */
-	public final int z;
-	
-	private LodChunk chunks[][];
+	/**
+	 * Number of detail level supported by a region
+	 */
+	private static final byte POSSIBLE_LOD = 10;
 	
 	
-	public LodRegion(int regionX, int regionZ)
+	/**
+	 * Holds the lowest (least detailed) detail level in this region
+	 */
+	private byte minDetailLevel;
+	
+	/**
+	 * This holds all data for this region
+	 */
+	private final LevelContainer[] dataContainer;
+	
+	/**
+	 * This chunk Pos has been generated
+	 */
+	//private final boolean[] preGeneratedChunkPos;
+	
+	/**
+	 * the generation mode for this region
+	 */
+	private DistanceGenerationMode generationMode;
+	/**
+	 * the vertical quality of this region
+	 */
+	private VerticalQuality verticalQuality;
+	
+	/**
+	 * this region's x RegionPos
+	 */
+	public final int regionPosX;
+	/**
+	 * this region's z RegionPos
+	 */
+	public final int regionPosZ;
+	
+	public LodRegion(byte minDetailLevel, RegionPos regionPos, DistanceGenerationMode generationMode, VerticalQuality verticalQuality)
 	{
-		x = regionX;
-		z = regionZ;
+		this.minDetailLevel = minDetailLevel;
+		this.regionPosX = regionPos.x;
+		this.regionPosZ = regionPos.z;
+		this.verticalQuality = verticalQuality;
+		this.generationMode = generationMode;
+		dataContainer = new LevelContainer[POSSIBLE_LOD];
+		
+		
+		// Initialize all the different matrices
+		for (byte lod = minDetailLevel; lod <= LodUtil.REGION_DETAIL_LEVEL; lod++)
+		{
+			dataContainer[lod] = new VerticalLevelContainer(lod);
+		}
+		
+		boolean fileFound = false;
+		
+		/*
+		preGeneratedChunkPos = new boolean[32 * 32];
+		if (MinecraftWrapper.INSTANCE.hasSinglePlayerServer() && LodConfig.CLIENT.worldGenerator.useExperimentalPreGenLoading.get())
+		{
+			File regionFileDirHead;
+			File regionFileDirParent;
+			// local world
+			
+			ServerWorld serverWorld = LodUtil.getServerWorldFromDimension(MinecraftWrapper.INSTANCE.getCurrentDimension());
+			
+			// provider needs a separate variable to prevent
+			// the compiler from complaining
+			StringBuilder string = new StringBuilder();
+			try
+			{
+				ServerChunkProvider provider = serverWorld.getChunkSource();
+				
+				//System.out.println(provider.dataStorage.dataFolder);
+				regionFileDirHead = new File(provider.dataStorage.dataFolder.getCanonicalFile().getParentFile().toPath().toAbsolutePath().toString() + File.separatorChar + "region", "r." + regionPosZ + "." + regionPosX + ".mca");
+				if (regionFileDirHead.exists())
+				{
+					regionFileDirParent = regionFileDirHead.getParentFile();
+					//string.append(regionFileDirParent.toString());
+					string.append(regionFileDirHead);
+					RegionFile regionFile = new RegionFile(regionFileDirHead, regionFileDirParent, true);
+					for (int x = 0; x < 32; x++)
+					{
+						for (int z = 0; z < 32; z++)
+						{
+							preGeneratedChunkPos[x * 32 + z] = regionFile.doesChunkExist(new ChunkPos(regionPosX * 32 + x, regionPosZ * 32 + z));
+						}
+					}
+					
+					string.append("region " + regionPosX + " " + regionPosZ + "\n");
+					for (int x = 0; x < 32; x++)
+					{
+						for (int z = 0; z < 32; z++)
+						{
+							//regionFile.doesChunkExist()
+							string.append(preGeneratedChunkPos[x * 32 + z] + "\t");
+						}
+						string.append("\n");
+					}
+					regionFile.close();
+				}
+			}
+			catch (Exception e)
+			{
+				e.printStackTrace();
+			}
+			System.out.println(string);
+		}*/
 		
-		chunks = new LodChunk[SIZE][SIZE];
 	}
 	
 	
 	/**
-	 * Add the given LOD to this region at the coordinate
-	 * stored in the LOD. If an LOD already exists at the given
-	 * coordinates it will be overwritten.
+	 * Return true if the chunk has been pregenerated in game
 	 */
-	public void addLod(LodChunk lod)
+	//public boolean isChunkPreGenerated(int xChunkPos, int zChunkPos)
+	//{
+	//	xChunkPos = LevelPosUtil.getRegionModule(LodUtil.CHUNK_DETAIL_LEVEL, xChunkPos);
+	//	zChunkPos = LevelPosUtil.getRegionModule(LodUtil.CHUNK_DETAIL_LEVEL, zChunkPos);
+	//	return preGeneratedChunkPos[xChunkPos * 32 + zChunkPos];
+	//}
+	
+	/**
+	 * Inserts the data point into the region.
+	 * <p>
+	 * TODO this will always return true unless it has
+	 * @return true if the data was added successfully
+	 */
+	public boolean addData(byte detailLevel, int posX, int posZ, int verticalIndex, long data)
 	{
-		// we use ABS since LODs can be negative, but if they are
-		// the region will negative first, therefore we don't have to
-		// store the LOD chunks at negative indexes since we search 
-		// LOD the region first
-		int xIndex = Math.abs(lod.x % SIZE);
-		int zIndex = Math.abs(lod.z % SIZE);
+		posX = LevelPosUtil.getRegionModule(detailLevel, posX);
+		posZ = LevelPosUtil.getRegionModule(detailLevel, posZ);
 		
-		chunks[xIndex][zIndex] = lod;
+		// The dataContainer could have null entries if the
+		// detailLevel changes.
+		if (this.dataContainer[detailLevel] == null)
+		{
+			this.dataContainer[detailLevel] = new VerticalLevelContainer(detailLevel);
+		}
+		
+		this.dataContainer[detailLevel].addData(data, posX, posZ, verticalIndex);
+		
+		return true;
 	}
 	
 	/**
-	 * Get the LodChunk at the given X and Z coordinates
-	 * in this region.
-	 * <br>
-	 * Returns null if the LodChunk doesn't exist or 
-	 * is outside the loaded area.
+	 * Inserts the vertical data into the region.
+	 * <p>
+	 * TODO this will always return true unless it has
+	 * @return true if the data was added successfully
 	 */
-	public LodChunk getLod(int chunkX, int chunkZ)
+	public boolean addVerticalData(byte detailLevel, int posX, int posZ, long[] data)
 	{
-		// since we add LOD's with ABS, we get them the same way
-		int arrayX = Math.abs(chunkX % SIZE);
-		int arrayZ = Math.abs(chunkZ % SIZE);
+		//position is already relative
+		//posX = LevelPosUtil.getRegionModule(detailLevel, posX);
+		//posZ = LevelPosUtil.getRegionModule(detailLevel, posZ);
 		
-		if(arrayX >= SIZE || arrayZ >= SIZE)
-			return null;
+		// The dataContainer could have null entries if the
+		// detailLevel changes.
+		if (this.dataContainer[detailLevel] == null)
+			this.dataContainer[detailLevel] = new VerticalLevelContainer(detailLevel);
+		
+		return this.dataContainer[detailLevel].addVerticalData(data, posX, posZ);
+	}
+	
+	/**
+	 * Get the dataPoint at the given relative position.
+	 * @return the data at the relative pos and detail level,
+	 * 0 if the data doesn't exist.
+	 */
+	public long getData(byte detailLevel, int posX, int posZ, int verticalIndex)
+	{
+		return dataContainer[detailLevel].getData(posX, posZ, verticalIndex);
+	}
+	
+	/**
+	 * Get the dataPoint at the given relative position.
+	 * @return the data at the relative pos and detail level,
+	 * 0 if the data doesn't exist.
+	 */
+	public long getSingleData(byte detailLevel, int posX, int posZ)
+	{
+		return dataContainer[detailLevel].getSingleData(posX, posZ);
+	}
+	
+	/**
+	 * Clears the datapoint at the given relative position
+	 */
+	public void clear(byte detailLevel, int posX, int posZ)
+	{
+		dataContainer[detailLevel].clear(posX, posZ);
+	}
+	
+	/**
+	 * This method will fill the posToGenerate array with all levelPos that
+	 * are render-able.
+	 * <p>
+	 * TODO why don't we return the posToGenerate, it would make this easier to understand
+	 */
+	public void getPosToGenerate(PosToGenerateContainer posToGenerate,
+			int playerBlockPosX, int playerBlockPosZ)
+	{
+		getPosToGenerate(posToGenerate, LodUtil.REGION_DETAIL_LEVEL, 0, 0, playerBlockPosX, playerBlockPosZ);
+		
+	}
+	
+	/**
+	 * A recursive method that fills the posToGenerate array with all levelPos that
+	 * need to be generated.
+	 * <p>
+	 * TODO why don't we return the posToGenerate, it would make this easier to understand
+	 */
+	private void getPosToGenerate(PosToGenerateContainer posToGenerate, byte detailLevel,
+			int childOffsetPosX, int childOffsetPosZ, int playerPosX, int playerPosZ)
+	{
+		// equivalent to 2^(...)
+		int size = 1 << (LodUtil.REGION_DETAIL_LEVEL - detailLevel);
+		
+		// calculate what LevelPos are in range to generate
+		int maxDistance = LevelPosUtil.maxDistance(detailLevel, childOffsetPosX, childOffsetPosZ, playerPosX, playerPosZ, regionPosX, regionPosZ);
+		
+		// determine this child's levelPos
+		byte childDetailLevel = (byte) (detailLevel - 1);
+		int childPosX = childOffsetPosX * 2;
+		int childPosZ = childOffsetPosZ * 2;
+		
+		int childSize = 1 << (LodUtil.REGION_DETAIL_LEVEL - childDetailLevel);
+		
+		byte targetDetailLevel = DetailDistanceUtil.getLodGenDetail(DetailDistanceUtil.getGenerationDetailFromDistance(maxDistance)).detailLevel;
+		if (targetDetailLevel <= detailLevel)
+		{
+			if (targetDetailLevel == detailLevel)
+			{
+				if (!doesDataExist(detailLevel, childOffsetPosX, childOffsetPosZ))
+					posToGenerate.addPosToGenerate(detailLevel, childOffsetPosX + regionPosX * size, childOffsetPosZ + regionPosZ * size);
+			}
+			else
+			{
+				// we want at max one request per chunk (since the world generator creates chunks).
+				// So for lod smaller than a chunk, only recurse down
+				// the top right child
+				
+				if (detailLevel > LodUtil.CHUNK_DETAIL_LEVEL)
+				{
+					int ungeneratedChildren = 0;
+					
+					// make sure all children are generated to this detailLevel
+					for (int x = 0; x <= 1; x++)
+					{
+						for (int z = 0; z <= 1; z++)
+						{
+							if (!doesDataExist(childDetailLevel, childPosX + x, childPosZ + z))
+							{
+								ungeneratedChildren++;
+								posToGenerate.addPosToGenerate(childDetailLevel, childPosX + x + regionPosX * childSize, childPosZ + z + regionPosZ * childSize);
+							}
+						}
+					}
+					
+					// only if all the children are correctly generated
+					// should we go deeper
+					if (ungeneratedChildren == 0)
+						for (int x = 0; x <= 1; x++)
+							for (int z = 0; z <= 1; z++)
+								getPosToGenerate(posToGenerate, childDetailLevel, childPosX + x, childPosZ + z, playerPosX, playerPosZ);
+				}
+				else
+				{
+					// The detail Level is smaller than a chunk.
+					// Only recurse down the top right child.
+					
+					if (DetailDistanceUtil.getLodGenDetail(childDetailLevel).detailLevel <= (childDetailLevel))
+					{
+						if (!doesDataExist(childDetailLevel, childPosX, childPosZ))
+							posToGenerate.addPosToGenerate(childDetailLevel, childPosX + regionPosX * childSize, childPosZ + regionPosZ * childSize);
+						else
+							getPosToGenerate(posToGenerate, childDetailLevel, childPosX, childPosZ, playerPosX, playerPosZ);
+					}
+				}
+			}
+		}
+		// we have gone beyond the target Detail level
+		// we can stop generating
 		
-		return chunks[arrayX][arrayZ];
 	}
 	
 	
 	/**
-	 * Returns all LodChunks in this region
+	 * This method will fill the posToRender array with all levelPos that
+	 * are render-able.
+	 * <p>
+	 * TODO why don't we return the posToRender, it would make this easier to understand
 	 */
-	public LodChunk[][] getAllLods()
+	public void getPosToRender(PosToRenderContainer posToRender,
+			int playerPosX, int playerPosZ, boolean requireCorrectDetailLevel)
 	{
-		return chunks;
+		getPosToRender(posToRender, LodUtil.REGION_DETAIL_LEVEL, 0, 0, playerPosX, playerPosZ, requireCorrectDetailLevel);
 	}
 	
+	/**
+	 * This method will fill the posToRender array with all levelPos that
+	 * are render-able.
+	 * <p>
+	 * TODO why don't we return the posToRender, it would make this easier to understand
+	 * TODO this needs some more comments, James was only able to figure out part of it
+	 */
+	private void getPosToRender(PosToRenderContainer posToRender,
+			byte detailLevel, int posX, int posZ,
+			int playerPosX, int playerPosZ, boolean requireCorrectDetailLevel)
+	{
+		// equivalent to 2^(...)
+		int size = 1 << (LodUtil.REGION_DETAIL_LEVEL - detailLevel);
+		
+		byte desiredLevel;
+		int maxDistance;
+		int minDistance;
+		int childLevel;
+		
+		
+		// calculate the LevelPos that are in range
+		maxDistance = LevelPosUtil.maxDistance(detailLevel, posX, posZ, playerPosX, playerPosZ, regionPosX, regionPosZ);
+		desiredLevel = DetailDistanceUtil.getLodDrawDetail(DetailDistanceUtil.getDrawDetailFromDistance(maxDistance));
+		minDistance = LevelPosUtil.minDistance(detailLevel, posX, posZ, playerPosX, playerPosZ, regionPosX, regionPosZ);
+		childLevel = DetailDistanceUtil.getLodDrawDetail(DetailDistanceUtil.getDrawDetailFromDistance(minDistance));
+		
+		if (detailLevel == childLevel - 1)
+		{
+			posToRender.addPosToRender(detailLevel,
+					posX + regionPosX * size,
+					posZ + regionPosZ * size);
+		}
+		else
+			//if (desiredLevel > detailLevel)
+			//{
+			// we have gone beyond the target Detail level
+			// we can stop generating
+			//} else
+			if (desiredLevel == detailLevel)
+			{
+				posToRender.addPosToRender(detailLevel,
+						posX + regionPosX * size,
+						posZ + regionPosZ * size);
+			}
+			else //case where (detailLevel > desiredLevel)
+			{
+				int childPosX = posX * 2;
+				int childPosZ = posZ * 2;
+				byte childDetailLevel = (byte) (detailLevel - 1);
+				int childrenCount = 0;
+				
+				for (int x = 0; x <= 1; x++)
+				{
+					for (int z = 0; z <= 1; z++)
+					{
+						if (doesDataExist(childDetailLevel, childPosX + x, childPosZ + z))
+						{
+							if (!requireCorrectDetailLevel)
+								childrenCount++;
+							else
+								getPosToRender(posToRender, childDetailLevel, childPosX + x, childPosZ + z, playerPosX, playerPosZ, requireCorrectDetailLevel);
+						}
+					}
+				}
+				
+				
+				if (!requireCorrectDetailLevel)
+				{
+					// If all the four children exist go deeper
+					if (childrenCount == 4)
+					{
+						for (int x = 0; x <= 1; x++)
+							for (int z = 0; z <= 1; z++)
+								getPosToRender(posToRender, childDetailLevel, childPosX + x, childPosZ + z, playerPosX, playerPosZ, requireCorrectDetailLevel);
+					}
+					else
+					{
+						posToRender.addPosToRender(detailLevel,
+								posX + regionPosX * size,
+								posZ + regionPosZ * size);
+					}
+				}
+			}
+	}
+	
+	
+	/**
+	 * Updates all children.
+	 * <p>
+	 * TODO could this be renamed mergeArea?
+	 */
+	public void updateArea(byte detailLevel, int posX, int posZ)
+	{
+		int width;
+		int startX;
+		int startZ;
+		
+		// TODO what are each of these loops updating?
+		for (byte down = (byte) (minDetailLevel + 1); down <= detailLevel; down++)
+		{
+			startX = LevelPosUtil.convert(detailLevel, posX, down);
+			startZ = LevelPosUtil.convert(detailLevel, posZ, down);
+			width = 1 << (detailLevel - down);
+			
+			for (int x = 0; x < width; x++)
+				for (int z = 0; z < width; z++)
+					update(down, startX + x, startZ + z);
+		}
+		
+		
+		for (byte up = (byte) (detailLevel + 1); up <= LodUtil.REGION_DETAIL_LEVEL; up++)
+		{
+			update(up,
+					LevelPosUtil.convert(detailLevel, posX, up),
+					LevelPosUtil.convert(detailLevel, posZ, up));
+		}
+	}
+	
+	/**
+	 * Update the child at the given relative Pos
+	 * <p>
+	 * TODO could this be renamed mergeChildData?
+	 */
+	private void update(byte detailLevel, int posX, int posZ)
+	{
+		dataContainer[detailLevel].updateData(dataContainer[detailLevel - 1], posX, posZ);
+	}
+	
+	
+	/**
+	 * Returns if data exists at the given relative Pos.
+	 */
+	public boolean doesDataExist(byte detailLevel, int posX, int posZ)
+	{
+		if (detailLevel < minDetailLevel)
+			return false;
+		
+		posX = LevelPosUtil.getRegionModule(detailLevel, posX);
+		posZ = LevelPosUtil.getRegionModule(detailLevel, posZ);
+		
+		if (dataContainer == null || dataContainer[detailLevel] == null)
+			return false;
+		
+		return dataContainer[detailLevel].doesItExist(posX, posZ);
+	}
+	
+	/**
+	 * Gets the generation mode for the data point at the given relative pos.
+	 */
+	public byte getGenerationMode(byte detailLevel, int posX, int posZ)
+	{
+		if (dataContainer[detailLevel].doesItExist(posX, posZ))
+			// We take the bottom information always
+			// TODO what does that mean? bottom of what?
+			return DataPointUtil.getGenerationMode(dataContainer[detailLevel].getSingleData(posX, posZ));
+		else
+			return DistanceGenerationMode.NONE.complexity;
+	}
+	
+	/**
+	 * Returns the lowest (least detailed) detail level in this region
+	 * TODO is that right?
+	 */
+	public byte getMinDetailLevel()
+	{
+		return minDetailLevel;
+	}
+	
+	/**
+	 * Returns the LevelContainer for the detailLevel
+	 * @throws IllegalArgumentException if the detailLevel is less than minDetailLevel
+	 */
+	public LevelContainer getLevel(byte detailLevel)
+	{
+		if (detailLevel < minDetailLevel)
+			throw new IllegalArgumentException("getLevel asked for a detail level that does not exist: minimum: [" + minDetailLevel + "] level requested: [" + detailLevel + "]");
+		
+		return dataContainer[detailLevel];
+	}
+	
+	/**
+	 * Add the levelContainer to this Region, updating the minDetailLevel
+	 * if necessary.
+	 * @throws IllegalArgumentException if the LevelContainer's detailLevel
+	 * is 2 or more detail levels lower than the
+	 * minDetailLevel of this region.
+	 */
+	public void addLevelContainer(LevelContainer levelContainer)
+	{
+		if (levelContainer.getDetailLevel() < minDetailLevel - 1)
+		{
+			throw new IllegalArgumentException(
+					"the LevelContainer's detailLevel was "
+							+ "[" + levelContainer.getDetailLevel() + "] but this region "
+							+ "only allows adding LevelContainers with a "
+							+ "detail level of [" + (minDetailLevel - 1) + "]");
+		}
+		
+		if (levelContainer.getDetailLevel() == minDetailLevel - 1)
+			minDetailLevel = levelContainer.getDetailLevel();
+		
+		dataContainer[levelContainer.getDetailLevel()] = levelContainer;
+	}
+	
+	// TODO James thinks cutTree and growTree (which he renamed to match cutTree)
+	// should have more descriptive names, to make sure the "Tree" portion isn't
+	// confused with Minecraft trees (the plant).
+	
+	/**
+	 * Removes any dataContainers that are higher than
+	 * the given detailLevel
+	 */
+	public void cutTree(byte detailLevel)
+	{
+		if (detailLevel > minDetailLevel)
+		{
+			for (byte detailLevelIndex = 0; detailLevelIndex < detailLevel; detailLevelIndex++)
+				dataContainer[detailLevelIndex] = null;
+			
+			minDetailLevel = detailLevel;
+		}
+	}
+	
+	/**
+	 * Make this region more detailed to the detailLevel given.
+	 * TODO is that correct?
+	 */
+	public void growTree(byte detailLevel)
+	{
+		if (detailLevel < minDetailLevel)
+		{
+			for (byte detailLevelIndex = (byte) (minDetailLevel - 1); detailLevelIndex >= detailLevel; detailLevelIndex--)
+			{
+				if (dataContainer[detailLevelIndex + 1] == null)
+					dataContainer[detailLevelIndex + 1] = new VerticalLevelContainer((byte) (detailLevelIndex + 1));
+				
+				dataContainer[detailLevelIndex] = dataContainer[detailLevelIndex + 1].expand();
+			}
+			minDetailLevel = detailLevel;
+		}
+	}
+	
+	/**
+	 * return RegionPos of this lod region
+	 */
+	public RegionPos getRegionPos()
+	{
+		return new RegionPos(regionPosX, regionPosZ);
+	}
+	
+	/**
+	 * Returns how many LODs are in this region
+	 */
+	public int getNumberOfLods()
+	{
+		int count = 0;
+		for (LevelContainer container : dataContainer)
+			count += container.getMaxNumberOfLods();
+		
+		return count;
+	}
+	
+	public VerticalQuality getVerticalQuality()
+	{
+		return verticalQuality;
+	}
+	
+	public DistanceGenerationMode getGenerationMode()
+	{
+		return generationMode;
+	}
+	
+	public int getMaxVerticalData(byte detailLevel)
+	{
+		return dataContainer[detailLevel].getMaxVerticalData();
+	}
 	
 	
 	@Override
 	public String toString()
 	{
-		String s = "";
-		
-		s += "x: " + x + " z: " + z + "\t";
-		
-		return s;
+		return getLevel(LodUtil.REGION_DETAIL_LEVEL).toString();
 	}
 }
@@ -1,39 +1,72 @@
+/*
+ *    This file is part of the Distant Horizon mod (formerly the LOD Mod),
+ *    licensed under the GNU GPL v3 License.
+ *
+ *    Copyright (C) 2020  James Seibel
+ *
+ *    This program is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, version 3.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.seibel.lod.objects;

 import java.util.Hashtable;
 import java.util.Map;

+import com.seibel.lod.proxy.ClientProxy;
+
 import net.minecraft.world.DimensionType;

 /**
 * This stores all LODs for a given world.
 * 
 * @author James Seibel
- * @version 04-01-2021
+ * @author Leonardo Amato
+ * @version 9-27-2021
 */
 public class LodWorld
 {
+	/** name of this world */
 	private String worldName;
 	
+	/** dimensions in this world */
 	private Map<DimensionType, LodDimension> lodDimensions;
+	
 	/** If true then the LOD world is setup and ready to use */
 	private boolean isWorldLoaded = false;
 	
+	/** the name given to the world if it isn't loaded */
 	public static final String NO_WORLD_LOADED = "No world loaded";
 	
+	
+	
 	public LodWorld()
 	{
 		worldName = NO_WORLD_LOADED;
 	}
 	
+	
+	
 	/**
 	 * Set up the LodWorld with the given newWorldName. <br>
-	 * This should be done whenever loading a new world.
-	 * @param newWorldName
+	 * This should be done whenever loading a new world. <br><br>
+	 * <p>
+	 * Note a System.gc() call may be in order after calling this <Br>
+	 * since a lot of LOD data is now homeless. <br>
+	 * @param newWorldName name of the world
 	 */
 	public void selectWorld(String newWorldName)
 	{
-		if(newWorldName.isEmpty())
+		if (newWorldName.isEmpty())
 		{
 			deselectWorld();
 			return;
@@ -45,14 +78,17 @@ public class LodWorld
 			return;
 		
 		worldName = newWorldName;
-		lodDimensions = new Hashtable<DimensionType, LodDimension>();
+		lodDimensions = new Hashtable<>();
 		isWorldLoaded = true;
 	}
 	
 	/**
 	 * Set the worldName to "No world loaded"
 	 * and clear the lodDimensions Map. <br>
-	 * This should be done whenever unloaded a world. 
+	 * This should be done whenever unloaded a world. <br><br>
+	 * <p>
+	 * Note a System.gc() call may be in order after calling this <Br>
+	 * since a lot of LOD data is now homeless. <br>
 	 */
 	public void deselectWorld()
 	{
@@ -62,39 +98,64 @@ public class LodWorld
 	}
 	
 	
-	public void addLodDimension(LodDimension newStorage)
+	/**
+	 * Adds newDimension to this world, if a LodDimension
+	 * already exists for the given dimension it is replaced.
+	 */
+	public void addLodDimension(LodDimension newDimension)
 	{
 		if (lodDimensions == null)
-			throw new IllegalStateException("LodWorld hasn't been given a world yet.");
+			return;
 		
-		lodDimensions.put(newStorage.dimension, newStorage);
+		lodDimensions.put(newDimension.dimension, newDimension);
 	}
 	
+	/**
+	 * Returns null if no LodDimension exists for the given dimension
+	 */
 	public LodDimension getLodDimension(DimensionType dimension)
 	{
 		if (lodDimensions == null)
-			throw new IllegalStateException("LodWorld hasn't been given a world yet.");
+			return null;
 		
 		return lodDimensions.get(dimension);
 	}
 	
 	/**
 	 * Resizes the max width in regions that each LodDimension
-	 * should use. 
+	 * should use.
 	 */
-	public void resizeDimensionRegionWidth(int newWidth)
+	public void resizeDimensionRegionWidth(int newRegionWidth)
 	{
 		if (lodDimensions == null)
-			throw new IllegalStateException("LodWorld hasn't been given a world yet.");
+			return;
 		
-		for(DimensionType key : lodDimensions.keySet())
-			lodDimensions.get(key).setRegionWidth(newWidth);
+		saveAllDimensions();
+		
+		for (DimensionType key : lodDimensions.keySet())
+			lodDimensions.get(key).setRegionWidth(newRegionWidth);
+	}
+	
+	/**
+	 * Requests all dimensions save any dirty regions they may have.
+	 */
+	public void saveAllDimensions()
+	{
+		if (lodDimensions == null)
+			return;
+		
+		// TODO we should only print this if lods were actually saved to file
+		// but that requires a LodDimension.hasDirtyRegions() method or something similar
+		ClientProxy.LOGGER.info("Saving LODs");
+		
+		for (DimensionType key : lodDimensions.keySet())
+			lodDimensions.get(key).saveDirtyRegionsToFileAsync();
 	}
 	
 	
-	public boolean getIsWorldLoaded()
+	public boolean getIsWorldNotLoaded()
 	{
-		return isWorldLoaded;
+		return !isWorldLoaded;
 	}
 	
 	public String getWorldName()
@@ -108,3 +169,4 @@ public class LodWorld
 		return "World name: " + worldName;
 	}
 }
+
@@ -1,28 +0,0 @@
-package com.seibel.lod.objects;
-
-import net.minecraft.client.renderer.BufferBuilder;
-
-/**
- * This object is just a replacement for an array
- * to make things easier to understand in the LodRenderer
- * and BuildBufferThread.
- * 
- * @author James Seibel
- * @version 03-25-2021
- */
-public class NearFarBuffer
-{
-	public BufferBuilder nearBuffer;
-	
-	public BufferBuilder farBuffer;
-	
-	/**
-	 * @param newNearBuffer
-	 * @param newFarBuffer
-	 */
-	public NearFarBuffer(BufferBuilder newNearBuffer, BufferBuilder newFarBuffer)
-	{
-		nearBuffer = newNearBuffer;
-		farBuffer = newFarBuffer;
-	}
-}
@@ -1,28 +0,0 @@
-package com.seibel.lod.objects;
-
-import com.seibel.lod.enums.FogDistance;
-
-/**
- * This object is just a replacement for an array
- * to make things easier to understand in the LodRenderer.
- * 
- * @author James Seibel
- * @version 02-27-2021
- */
-public class NearFarFogSetting
-{
-	public FogDistance nearFogSetting = FogDistance.NEAR;
-	public FogDistance farFogSetting = FogDistance.FAR;
-	
-	
-	public NearFarFogSetting()
-	{
-		
-	}
-	
-	public NearFarFogSetting(FogDistance newNearFogSetting, FogDistance newFarFogSetting)
-	{
-		nearFogSetting = newNearFogSetting;
-		farFogSetting = newFarFogSetting;
-	}
-}
@@ -0,0 +1,64 @@
+/*
+ *    This file is part of the Distant Horizon mod (formerly the LOD Mod),
+ *    licensed under the GNU GPL v3 License.
+ *
+ *    Copyright (C) 2020  James Seibel
+ *
+ *    This program is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, version 3.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.seibel.lod.objects;
+
+import com.seibel.lod.enums.FogDistance;
+import com.seibel.lod.enums.FogQuality;
+
+/**
+ * This object is just a replacement for an array
+ * to make things easier to understand in the LodRenderer.
+ * 
+ * @author James Seibel
+ * @version 7-03-2021
+ */
+public class NearFarFogSettings
+{
+	public final NearOrFarSetting near = new NearOrFarSetting(FogDistance.NEAR);
+	public final NearOrFarSetting far = new NearOrFarSetting(FogDistance.FAR);
+	
+	/**
+	 * If true that means Minecraft is
+	 * rendering fog alongside us
+	 */
+	public boolean vanillaIsRenderingFog = true;
+	
+	public NearFarFogSettings()
+	{
+		
+	}
+	
+	
+	
+	/**
+	 * This holds all relevant data to rendering fog at either
+	 * near or far distances.
+	 */
+	public static class NearOrFarSetting
+	{
+		public FogQuality quality = FogQuality.FANCY;
+		public FogDistance distance;
+		
+		public NearOrFarSetting(FogDistance newFogDistance)
+		{
+			distance = newFogDistance;
+		}
+	}
+}
@@ -0,0 +1,210 @@
+/*
+ *    This file is part of the Distant Horizon mod (formerly the LOD Mod),
+ *    licensed under the GNU GPL v3 License.
+ *
+ *    Copyright (C) 2020  James Seibel
+ *
+ *    This program is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, version 3.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.seibel.lod.objects;
+
+import com.seibel.lod.util.LevelPosUtil;
+
+/**
+ * Holds the levelPos that need to be generated.
+ * TODO is that correct?
+ * 
+ * @author Leonardo Amato
+ * @version 9-27-2021
+ */
+public class PosToGenerateContainer
+{
+	private final int playerPosX;
+	private final int playerPosZ;
+	private final byte farMinDetail;
+	private int nearSize;
+	private int farSize;
+	
+	// TODO what is the format of these two arrays? [detailLevel][4-children]?
+	private final int[][] nearPosToGenerate;
+	private final int[][] farPosToGenerate;
+	
+	
+	
+	
+	public PosToGenerateContainer(byte farMinDetail, int maxDataToGenerate, int playerPosX, int playerPosZ)
+	{
+		this.playerPosX = playerPosX;
+		this.playerPosZ = playerPosZ;
+		this.farMinDetail = farMinDetail;
+		nearSize = 0;
+		farSize = 0;
+		nearPosToGenerate = new int[maxDataToGenerate][4];
+		farPosToGenerate = new int[maxDataToGenerate][4];
+	}
+	
+	
+	
+	// TODO what is going on in this method?
+	public void addPosToGenerate(byte detailLevel, int posX, int posZ)
+	{
+		int distance = LevelPosUtil.minDistance(detailLevel, posX, posZ, playerPosX, playerPosZ);
+		int index;
+		
+		if (detailLevel >= farMinDetail)
+		{
+			// We are introducing a position in the far array
+			
+			if (farSize < farPosToGenerate.length)
+				farSize++;
+			
+			index = farSize - 1;
+			while (index > 0 && LevelPosUtil.compareDistance(distance, farPosToGenerate[index - 1][3]) <= 0)
+			{
+				farPosToGenerate[index][0] = farPosToGenerate[index - 1][0];
+				farPosToGenerate[index][1] = farPosToGenerate[index - 1][1];
+				farPosToGenerate[index][2] = farPosToGenerate[index - 1][2];
+				farPosToGenerate[index][3] = farPosToGenerate[index - 1][3];
+				index--;
+			}
+			
+			
+			if (index != farSize - 1 || farSize != farPosToGenerate.length)
+			{
+				farPosToGenerate[index][0] = detailLevel + 1;
+				farPosToGenerate[index][1] = posX;
+				farPosToGenerate[index][2] = posZ;
+				farPosToGenerate[index][3] = distance;
+			}
+		}
+		else
+		{
+			//We are introducing a position in the near array
+			
+			if (nearSize < nearPosToGenerate.length)
+				nearSize++;
+			
+			index = nearSize - 1;
+			while (index > 0 && LevelPosUtil.compareDistance(distance, nearPosToGenerate[index - 1][3]) <= 0)
+			{
+				nearPosToGenerate[index][0] = nearPosToGenerate[index - 1][0];
+				nearPosToGenerate[index][1] = nearPosToGenerate[index - 1][1];
+				nearPosToGenerate[index][2] = nearPosToGenerate[index - 1][2];
+				nearPosToGenerate[index][3] = nearPosToGenerate[index - 1][3];
+				index--;
+			}
+			
+			
+			if (index != nearSize - 1 || nearSize != nearPosToGenerate.length)
+			{
+				nearPosToGenerate[index][0] = detailLevel + 1;
+				nearPosToGenerate[index][1] = posX;
+				nearPosToGenerate[index][2] = posZ;
+				nearPosToGenerate[index][3] = distance;
+			}
+		}
+	}
+	
+	
+	
+	public int getNumberOfPos()
+	{
+		return nearSize + farSize;
+	}
+	
+	public int getNumberOfNearPos()
+	{
+		return nearSize;
+	}
+	
+	public int getNumberOfFarPos()
+	{
+		return farSize;
+	}
+	
+	// TODO what does getNth mean? could the name be more descriptive or is it just a index?
+	public int getNthDetail(int n, boolean near)
+	{
+		if (near)
+			return nearPosToGenerate[n][0];
+		else
+			return farPosToGenerate[n][0];
+	}
+	
+	public int getNthPosX(int n, boolean near)
+	{
+		if (near)
+			return nearPosToGenerate[n][1];
+		else
+			return farPosToGenerate[n][1];
+	}
+	
+	public int getNthPosZ(int n, boolean near)
+	{
+		if (near)
+			return nearPosToGenerate[n][2];
+		else
+			return farPosToGenerate[n][2];
+	}
+	
+	public int getNthGeneration(int n, boolean near)
+	{
+		if (near)
+			return nearPosToGenerate[n][3];
+		else
+			return farPosToGenerate[n][3];
+	}
+	
+	@Override
+	public String toString()
+	{
+		StringBuilder builder = new StringBuilder();
+		builder.append('\n');
+		builder.append('\n');
+		builder.append('\n');
+		builder.append("near pos to generate");
+		builder.append('\n');
+		for (int[] ints : nearPosToGenerate)
+		{
+			if (ints[0] == 0)
+				break;
+			builder.append(ints[0] - 1);
+			builder.append(" ");
+			builder.append(ints[1]);
+			builder.append(" ");
+			builder.append(ints[2]);
+			builder.append(" ");
+			builder.append(ints[3]);
+			builder.append('\n');
+		}
+		builder.append('\n');
+		
+		builder.append("far pos to generate");
+		builder.append('\n');
+		for (int[] ints : farPosToGenerate)
+		{
+			if (ints[0] == 0)
+				break;
+			builder.append(ints[0] - 1);
+			builder.append(" ");
+			builder.append(ints[1]);
+			builder.append(" ");
+			builder.append(ints[2]);
+			builder.append(" ");
+			builder.append(ints[3]);
+			builder.append('\n');
+		}
+		return builder.toString();
+	}
+}
@@ -0,0 +1,148 @@
+/*
+ *    This file is part of the Distant Horizon mod (formerly the LOD Mod),
+ *    licensed under the GNU GPL v3 License.
+ *
+ *    Copyright (C) 2020  James Seibel
+ *
+ *    This program is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, version 3.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.seibel.lod.objects;
+
+import java.util.Arrays;
+
+import com.seibel.lod.proxy.ClientProxy;
+import com.seibel.lod.util.LevelPosUtil;
+import com.seibel.lod.util.LodUtil;
+
+/**
+ * @author Leonardo Amato
+ * @version 9-18-2021
+ */
+public class PosToRenderContainer
+{
+	public byte minDetail;
+	private final int size;
+	private int regionPosX;
+	private int regionPosZ;
+	private int numberOfPosToRender;
+	private int[] posToRender;
+	/*TODO this population matrix could be converted to boolean to improve memory use
+	 *  no since bools are stored as bytes anyway - cola*/
+	private byte[][] population;
+	
+	public PosToRenderContainer(byte minDetail, int regionPosX, int regionPosZ)
+	{
+		this.minDetail = minDetail;
+		this.numberOfPosToRender = 0;
+		this.regionPosX = regionPosX;
+		this.regionPosZ = regionPosZ;
+		this.size = 1 << (LodUtil.REGION_DETAIL_LEVEL - minDetail);
+		posToRender = new int[size * size * 3];
+		population = new byte[size][size];
+	}
+	
+	public void addPosToRender(byte detailLevel, int posX, int posZ)
+	{
+		// When rapidly changing dimensions the bufferBuilder can cause this,
+		// James isn't sure why, but this will prevent an exception at
+		// the very least (while stilling logging the problem). 
+		if (numberOfPosToRender >= posToRender.length)
+		{
+			// This is might be due to dimensions having a different width
+			// when first loading in
+			ClientProxy.LOGGER.error("Unable to addPosToRender. numberOfPosToRender [" + numberOfPosToRender + "] detailLevel [" + detailLevel + "] Pos [" + posX + "," + posZ + "]");
+			numberOfPosToRender++; // incrementing so we can see how many pos over the limit we would go
+			return;
+		}
+		
+		//if(numberOfPosToRender >= posToRender.length)
+		//	posToRender = Arrays.copyOf(posToRender, posToRender.length*2);
+		posToRender[numberOfPosToRender * 3] = detailLevel;
+		posToRender[numberOfPosToRender * 3 + 1] = posX;
+		posToRender[numberOfPosToRender * 3 + 2] = posZ;
+		numberOfPosToRender++;
+		population[LevelPosUtil.getRegionModule(minDetail, LevelPosUtil.convert(detailLevel, posX, minDetail))]
+				[LevelPosUtil.getRegionModule(minDetail, LevelPosUtil.convert(detailLevel, posZ, minDetail))] = (byte) (detailLevel + 1);
+	}
+	
+	public boolean contains(byte detailLevel, int posX, int posZ)
+	{
+		if (LevelPosUtil.getRegion(detailLevel, posX) == regionPosX && LevelPosUtil.getRegion(detailLevel, posZ) == regionPosZ)
+			return (population[LevelPosUtil.getRegionModule(minDetail, LevelPosUtil.convert(detailLevel, posX, minDetail))]
+					[LevelPosUtil.getRegionModule(minDetail, LevelPosUtil.convert(detailLevel, posZ, minDetail))] == (detailLevel + 1));
+		else
+			return false;
+	}
+	
+	public void clear(byte minDetail, int regionPosX, int regionPosZ)
+	{
+		this.numberOfPosToRender = 0;
+		this.regionPosX = regionPosX;
+		this.regionPosZ = regionPosZ;
+		if (this.minDetail == minDetail)
+		{
+			Arrays.fill(posToRender, 0);
+			for (byte[] bytes : population)
+				Arrays.fill(bytes, (byte) 0);
+		}
+		else
+		{
+			this.minDetail = minDetail;
+			int size = 1 << (LodUtil.REGION_DETAIL_LEVEL - minDetail);
+			posToRender = new int[size * size * 3];
+			population = new byte[size][size];
+		}
+	}
+	
+	public int getNumberOfPos()
+	{
+		return numberOfPosToRender;
+	}
+	
+	public byte getNthDetailLevel(int n)
+	{
+		return (byte) posToRender[n * 3];
+	}
+	
+	public int getNthPosX(int n)
+	{
+		return posToRender[n * 3 + 1];
+	}
+	
+	public int getNthPosZ(int n)
+	{
+		return posToRender[n * 3 + 2];
+	}
+	
+	@Override
+	public String toString()
+	{
+		
+		StringBuilder builder = new StringBuilder();
+		builder.append("To render ");
+		builder.append(numberOfPosToRender);
+		builder.append('\n');
+		for (int i = 0; i < numberOfPosToRender; i++)
+		{
+			builder.append(posToRender[i * 3]);
+			builder.append(" ");
+			builder.append(posToRender[i * 3 + 1]);
+			builder.append(" ");
+			builder.append(posToRender[i * 3 + 2]);
+			builder.append('\n');
+		}
+		builder.append('\n');
+		return builder.toString();
+	}
+}
@@ -1,10 +1,34 @@
+/*
+ *    This file is part of the Distant Horizon mod (formerly the LOD Mod),
+ *    licensed under the GNU GPL v3 License.
+ *
+ *    Copyright (C) 2020  James Seibel
+ *
+ *    This program is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, version 3.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.seibel.lod.objects;

+import com.seibel.lod.util.LodUtil;
+
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.util.math.ChunkPos;
+
 /**
 * This object is similar to ChunkPos or BlockPos.
 * 
 * @author James Seibel
- * @version 03-19-2021
+ * @version 8-21-2021
 */
 public class RegionPos
 {
@@ -13,8 +37,8 @@ public class RegionPos
 	
 	
 	/**
-	 * Default Constructor <br>
-	 * 
+	 * Default Constructor <br><br>
+	 * <p>
 	 * Sets x and z to 0
 	 */
 	public RegionPos()
@@ -23,9 +47,45 @@ public class RegionPos
 		z = 0;
 	}
 	
+	/** simple constructor that sets x and z to new x and z. */
 	public RegionPos(int newX, int newZ)
 	{
 		x = newX;
 		z = newZ;
 	}
+	
+	/** Converts from a BlockPos to a RegionPos */
+	public RegionPos(BlockPos pos)
+	{
+		this(new ChunkPos(pos));
+	}
+	
+	/** Converts from a ChunkPos to a RegionPos */
+	public RegionPos(ChunkPos pos)
+	{
+		x = Math.floorDiv(pos.x, LodUtil.REGION_WIDTH_IN_CHUNKS);
+		z = Math.floorDiv(pos.z, LodUtil.REGION_WIDTH_IN_CHUNKS);
+	}
+	
+	/** Returns the ChunkPos at the center of this region */
+	public ChunkPos chunkPos()
+	{
+		return new ChunkPos(
+				(x * LodUtil.REGION_WIDTH_IN_CHUNKS) + LodUtil.REGION_WIDTH_IN_CHUNKS / 2,
+				(z * LodUtil.REGION_WIDTH_IN_CHUNKS) + LodUtil.REGION_WIDTH_IN_CHUNKS / 2);
+	}
+	
+	/** Returns the BlockPos at the center of this region */
+	public BlockPos blockPos()
+	{
+		return chunkPos().getWorldPosition()
+				.offset(LodUtil.CHUNK_WIDTH / 2, 0, LodUtil.CHUNK_WIDTH / 2);
+	}
+	
+	
+	@Override
+	public String toString()
+	{
+		return "(" + x + "," + z + ")";
+	}
 }
@@ -0,0 +1,242 @@
+/*
+ *    This file is part of the Distant Horizon mod (formerly the LOD Mod),
+ *    licensed under the GNU GPL v3 License.
+ *
+ *    Copyright (C) 2020  James Seibel
+ *
+ *    This program is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, version 3.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.seibel.lod.objects;
+
+import com.seibel.lod.util.DataPointUtil;
+import com.seibel.lod.util.DetailDistanceUtil;
+import com.seibel.lod.util.LevelPosUtil;
+import com.seibel.lod.util.LodUtil;
+import com.seibel.lod.util.ThreadMapUtil;
+
+/**
+ * 
+ * @author Leonardo Amato
+ * @version ??
+ */
+public class VerticalLevelContainer implements LevelContainer
+{
+	
+	public final byte detailLevel;
+	public final int size;
+	public final int maxVerticalData;
+	
+	public final long[] dataContainer;
+	
+	public VerticalLevelContainer(byte detailLevel)
+	{
+		this.detailLevel = detailLevel;
+		size = 1 << (LodUtil.REGION_DETAIL_LEVEL - detailLevel);
+		maxVerticalData = DetailDistanceUtil.getMaxVerticalData(detailLevel);
+		dataContainer = new long[size * size * DetailDistanceUtil.getMaxVerticalData(detailLevel)];
+	}
+	
+	@Override
+	public byte getDetailLevel()
+	{
+		return detailLevel;
+	}
+	
+	@Override
+	public void clear(int posX, int posZ)
+	{
+		
+		posX = LevelPosUtil.getRegionModule(detailLevel, posX);
+		posZ = LevelPosUtil.getRegionModule(detailLevel, posZ);
+		for (int verticalIndex = 0; verticalIndex < maxVerticalData; verticalIndex++)
+		{
+			dataContainer[posX * size * maxVerticalData + posZ * maxVerticalData + verticalIndex] = DataPointUtil.EMPTY_DATA;
+		}
+	}
+	
+	@Override
+	public boolean addData(long data, int posX, int posZ, int verticalIndex)
+	{
+		
+		posX = LevelPosUtil.getRegionModule(detailLevel, posX);
+		posZ = LevelPosUtil.getRegionModule(detailLevel, posZ);
+		dataContainer[posX * size * maxVerticalData + posZ * maxVerticalData + verticalIndex] = data;
+		return true;
+	}
+	
+	@Override
+	public boolean addVerticalData(long[] data, int posX, int posZ)
+	{
+		
+		posX = LevelPosUtil.getRegionModule(detailLevel, posX);
+		posZ = LevelPosUtil.getRegionModule(detailLevel, posZ);
+		for (int verticalIndex = 0; verticalIndex < maxVerticalData; verticalIndex++)
+			dataContainer[posX * size * maxVerticalData + posZ * maxVerticalData + verticalIndex] = data[verticalIndex];
+		return true;
+	}
+	
+	@Override
+	public boolean addSingleData(long data, int posX, int posZ)
+	{
+		return addData(data, posX, posZ, 0);
+	}
+	
+	@Override
+	public long getData(int posX, int posZ, int verticalIndex)
+	{
+		posX = LevelPosUtil.getRegionModule(detailLevel, posX);
+		posZ = LevelPosUtil.getRegionModule(detailLevel, posZ);
+		return dataContainer[posX * size * maxVerticalData + posZ * maxVerticalData + verticalIndex];
+	}
+	
+	@Override
+	public long getSingleData(int posX, int posZ)
+	{
+		return getData(posX, posZ, 0);
+	}
+	
+	@Override
+	public int getMaxVerticalData()
+	{
+		return maxVerticalData;
+	}
+	
+	public int getSize()
+	{
+		return size;
+	}
+	
+	@Override
+	public boolean doesItExist(int posX, int posZ)
+	{
+		posX = LevelPosUtil.getRegionModule(detailLevel, posX);
+		posZ = LevelPosUtil.getRegionModule(detailLevel, posZ);
+		return DataPointUtil.doesItExist(getSingleData(posX, posZ));
+	}
+	
+	public VerticalLevelContainer(byte[] inputData)
+	{
+		int tempIndex;
+		int index = 0;
+		long newData;
+		detailLevel = inputData[index];
+		index++;
+		maxVerticalData = inputData[index];
+		index++;
+		size = (int) Math.pow(2, LodUtil.REGION_DETAIL_LEVEL - detailLevel);
+		int x = size * size * maxVerticalData;
+		this.dataContainer = new long[x];
+		for (int i = 0; i < x; i++)
+		{
+			newData = 0;
+			for (tempIndex = 0; tempIndex < 8; tempIndex++)
+				newData += (((long) inputData[index + tempIndex]) & 0xff) << (8 * tempIndex);
+			index += 8;
+			dataContainer[i] = newData;
+		}
+	}
+	
+	@Override
+	public LevelContainer expand()
+	{
+		return new VerticalLevelContainer((byte) (getDetailLevel() - 1));
+	}
+	
+	@Override
+	public void updateData(LevelContainer lowerLevelContainer, int posX, int posZ)
+	{
+		//We reset the array
+		long[] dataToMerge = ThreadMapUtil.getVerticalUpdateArray(detailLevel);
+		
+		int lowerMaxVertical = dataToMerge.length / 4;
+		int childPosX;
+		int childPosZ;
+		long[] data;
+		posX = LevelPosUtil.getRegionModule(detailLevel, posX);
+		posZ = LevelPosUtil.getRegionModule(detailLevel, posZ);
+		for (int x = 0; x <= 1; x++)
+		{
+			for (int z = 0; z <= 1; z++)
+			{
+				childPosX = 2 * posX + x;
+				childPosZ = 2 * posZ + z;
+				for (int verticalIndex = 0; verticalIndex < lowerMaxVertical; verticalIndex++)
+					dataToMerge[(z * 2 + x) * lowerMaxVertical + verticalIndex] = lowerLevelContainer.getData(childPosX, childPosZ, verticalIndex);
+			}
+		}
+		data = DataPointUtil.mergeMultiData(dataToMerge, lowerMaxVertical, getMaxVerticalData());
+		
+		for (int verticalIndex = 0; (verticalIndex < data.length) && (verticalIndex < maxVerticalData); verticalIndex++)
+		{
+			addData(data[verticalIndex],
+					posX,
+					posZ,
+					verticalIndex);
+		}
+	}
+	
+	@Override
+	public byte[] toDataString()
+	{
+		int index = 0;
+		int x = size * size * maxVerticalData;
+		int tempIndex;
+		long current;
+		
+		byte[] tempData = ThreadMapUtil.getSaveContainer(detailLevel);
+		
+		tempData[index] = detailLevel;
+		index++;
+		tempData[index] = (byte) maxVerticalData;
+		index++;
+		
+		for (int i = 0; i < x; i++)
+		{
+			current = dataContainer[i];
+			for (tempIndex = 0; tempIndex < 8; tempIndex++)
+				tempData[index + tempIndex] = (byte) (current >>> (8 * tempIndex));
+			index += 8;
+		}
+		return tempData;
+	}
+	
+	@Override
+	@SuppressWarnings("unused")
+	public String toString()
+	{
+		/*
+		StringBuilder stringBuilder = new StringBuilder();
+		int size = (int) Math.pow(2, LodUtil.REGION_DETAIL_LEVEL - detailLevel);
+		stringBuilder.append(detailLevel);
+		stringBuilder.append(DATA_DELIMITER);
+		for (int x = 0; x < size; x++)
+		{
+			for (int z = 0; z < size; z++)
+			{
+				//Converting the dataToHex
+				stringBuilder.append(Long.toHexString(dataContainer[x][z][0]));
+				stringBuilder.append(DATA_DELIMITER);
+			}
+		}
+		return stringBuilder.toString();
+		 */
+		return " ";
+	}
+	
+	@Override
+	public int getMaxNumberOfLods()
+	{
+		return size * size * getMaxVerticalData();
+	}
+}
@@ -1,20 +1,49 @@
+/*
+ *    This file is part of the Distant Horizon mod (formerly the LOD Mod),
+ *    licensed under the GNU GPL v3 License.
+ *
+ *    Copyright (C) 2020  James Seibel
+ *
+ *    This program is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, version 3.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.seibel.lod.proxy;

 import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.Logger;
+import org.lwjgl.glfw.GLFW;

-import com.seibel.lod.builders.LodBufferBuilder;
-import com.seibel.lod.builders.LodBuilder;
-import com.seibel.lod.objects.LodChunk;
+import com.mojang.blaze3d.matrix.MatrixStack;
+import com.seibel.lod.builders.bufferBuilding.LodBufferBuilder;
+import com.seibel.lod.builders.lodBuilding.LodBuilder;
+import com.seibel.lod.builders.worldGeneration.LodGenWorker;
+import com.seibel.lod.builders.worldGeneration.LodWorldGenerator;
+import com.seibel.lod.config.LodConfig;
+import com.seibel.lod.enums.DistanceGenerationMode;
 import com.seibel.lod.objects.LodDimension;
-import com.seibel.lod.objects.LodRegion;
 import com.seibel.lod.objects.LodWorld;
-import com.seibel.lod.render.LodRender;
-import com.seibel.lod.util.LodConfig;
-import com.seibel.lod.util.LodUtils;
+import com.seibel.lod.objects.RegionPos;
+import com.seibel.lod.render.LodRenderer;
+import com.seibel.lod.util.DataPointUtil;
+import com.seibel.lod.util.DetailDistanceUtil;
+import com.seibel.lod.util.LodUtil;
+import com.seibel.lod.util.ThreadMapUtil;
+import com.seibel.lod.wrappers.MinecraftWrapper;

-import net.minecraft.client.Minecraft;
 import net.minecraft.profiler.IProfiler;
+import net.minecraft.util.text.StringTextComponent;
+import net.minecraftforge.client.event.InputEvent;
+import net.minecraftforge.event.TickEvent;
 import net.minecraftforge.event.world.BlockEvent;
 import net.minecraftforge.event.world.ChunkEvent;
 import net.minecraftforge.event.world.WorldEvent;
@@ -22,22 +51,41 @@ import net.minecraftforge.eventbus.api.SubscribeEvent;

 /**
 * This handles all events sent to the client,
- * and is the starting point for most of this program.
- * 
+ * and is the starting point for most of the mod.
 * @author James_Seibel
- * @version 05-31-2021
+ * @version 10-15-2021
 */
 public class ClientProxy
 {
 	public static final Logger LOGGER = LogManager.getLogger("LOD");
 	
-	private static LodWorld lodWorld = new LodWorld();
-	private static LodBuilder lodBuilder = new LodBuilder();
-	private static LodBufferBuilder lodBufferBuilder = new LodBufferBuilder(lodBuilder);
-	private static LodRender renderer = new LodRender(lodBufferBuilder);
+	/**
+	 * there is some setup that should only happen once,
+	 * once this is true that setup has completed
+	 */
+	private boolean firstTimeSetupComplete = false;
 	
-	Minecraft mc = Minecraft.getInstance();
+	private static final LodWorld lodWorld = new LodWorld();
+	private static final LodBuilder lodBuilder = new LodBuilder();
+	private static final LodBufferBuilder lodBufferBuilder = new LodBufferBuilder();
+	private static LodRenderer renderer = new LodRenderer(lodBufferBuilder);
+	private static final LodWorldGenerator lodWorldGenerator = LodWorldGenerator.INSTANCE;
 	
+	private boolean configOverrideReminderPrinted = false;
+	
+	private final MinecraftWrapper mc = MinecraftWrapper.INSTANCE;
+	
+	
+	/** This is used to determine if the LODs should be regenerated */
+	public static int previousChunkRenderDistance = 0;
+	/** This is used to determine if the LODs should be regenerated */
+	public static int previousLodRenderDistance = 0;
+	
+	/**
+	 * can be set if we want to recalculate variables related
+	 * to the LOD view distance
+	 */
+	private boolean recalculateWidths = false;
 	
 	public ClientProxy()
 	{
@@ -45,75 +93,100 @@ public class ClientProxy
 	}
 	
 	
-	
-	
 	//==============//
 	// render event //
 	//==============//
 	
-	/**
-	 * Do any setup that is required to draw LODs
-	 * and then tell the LodRenderer to draw.
-	 */
-	public void renderLods(float partialTicks)
+	/** Do any setup that is required to draw LODs and then tell the LodRenderer to draw. */
+	public void renderLods(MatrixStack mcMatrixStack, float partialTicks)
 	{
-		if (mc == null || mc.player == null || !lodWorld.getIsWorldLoaded())
-			return;
+		// comment out when creating a release
+		// applyConfigOverrides();
 		
-		// update each regions' width to match the new render distance
-		int newWidth = Math.max(4, 
-				// TODO is this logic good?
-				(mc.gameSettings.renderDistanceChunks * LodChunk.WIDTH * 2 * LodConfig.CLIENT.lodChunkRadiusMultiplier.get()) / LodRegion.SIZE
-				);
-		if (lodBuilder.regionWidth != newWidth)
+		// clear any out of date objects
+		mc.clearFrameObjectCache();
+		
+		try
 		{
-			lodWorld.resizeDimensionRegionWidth(newWidth);
-			lodBuilder.regionWidth = newWidth;
+			// only run the first time setup once
+			if (!firstTimeSetupComplete)
+				firstFrameSetup();
 			
-			// skip this frame, hopefully the lodWorld
-			// should have everything set up by then
-			return;
+			
+			if (mc == null || mc.getPlayer() == null || lodWorld.getIsWorldNotLoaded())
+				return;
+			
+			LodDimension lodDim = lodWorld.getLodDimension(mc.getCurrentDimension());
+			if (lodDim == null)
+				return;
+			
+			DetailDistanceUtil.updateSettings();
+			viewDistanceChangedEvent();
+			playerMoveEvent(lodDim);
+			
+			lodDim.cutRegionNodesAsync((int) mc.getPlayer().getX(), (int) mc.getPlayer().getZ());
+			lodDim.expandOrLoadRegionsAsync((int) mc.getPlayer().getX(), (int) mc.getPlayer().getZ());
+			
+			
+			// Note to self:
+			// if "unspecified" shows up in the pie chart, it is
+			// possibly because the amount of time between sections
+			// is too small for the profiler to measure
+			IProfiler profiler = mc.getProfiler();
+			profiler.pop(); // get out of "terrain"
+			profiler.push("LOD");
+			
+			renderer.drawLODs(lodDim, mcMatrixStack, partialTicks, mc.getProfiler());
+			
+			profiler.pop(); // end LOD
+			profiler.push("terrain"); // go back into "terrain"
+			
+			
+			// these can't be set until after the buffers are built (in renderer.drawLODs)
+			// otherwise the buffers may be set to the wrong size, or not changed at all
+			previousChunkRenderDistance = mc.getRenderDistance();
+			previousLodRenderDistance = LodConfig.CLIENT.graphics.qualityOption.lodChunkRenderDistance.get();
 		}
-		
-		LodDimension lodDim = lodWorld.getLodDimension(mc.player.world.getDimensionType());
-		if (lodDim == null)
-			return;
-		
-		
-		// offset the regions
-		double playerX = mc.player.getPosX();
-		double playerZ = mc.player.getPosZ();
-		
-		int xOffset = ((int)playerX / (LodChunk.WIDTH * LodRegion.SIZE)) - lodDim.getCenterX();
-		int zOffset = ((int)playerZ / (LodChunk.WIDTH * LodRegion.SIZE)) - lodDim.getCenterZ();
-		
-		if (xOffset != 0 || zOffset != 0)
+		catch (Exception e)
 		{
-			lodDim.move(xOffset, zOffset);
+			LOGGER.error("client proxy: " + e.getMessage());
+			e.printStackTrace();
 		}
-		
-		
-		// TODO for testing
-//		LodConfig.CLIENT.debugMode.set(false);
-//		LodConfig.CLIENT.lodDetail.set(LodDetail.DOUBLE);
-//		LodConfig.CLIENT.lodColorStyle.set(LodColorStyle.INDIVIDUAL_SIDES);
-//		LodConfig.CLIENT.lodChunkRadiusMultiplier.set(12);
-		
-		// Note to self:
-		// if "unspecified" shows up in the pie chart, it is
-		// possibly because the amount of time between sections
-		// is too small for the profile to measure
-		IProfiler profiler = mc.getProfiler();
-		profiler.endSection(); // get out of "terrain"
-		profiler.startSection("LOD");
-		
-		renderer.drawLODs(lodDim, partialTicks, mc.getProfiler());
-		
-		profiler.endSection(); // end LOD
-		profiler.startSection("terrain"); // restart terrain
-	}	
-	
+	}
 	
+	/** used in a development environment to change settings on the fly */
+	private void applyConfigOverrides()
+	{
+		// remind the developer(s) that the config override is active
+		if (!configOverrideReminderPrinted)
+		{
+//			mc.getPlayer().sendMessage(new StringTextComponent("LOD experimental build 1.5.1"), mc.getPlayer().getUUID());
+//			mc.getPlayer().sendMessage(new StringTextComponent("Here be dragons!"), mc.getPlayer().getUUID());
+			
+			mc.getPlayer().sendMessage(new StringTextComponent("Debug settings enabled!"), mc.getPlayer().getUUID());
+			configOverrideReminderPrinted = true;
+		}
+
+//		LodConfig.CLIENT.graphics.drawResolution.set(HorizontalResolution.BLOCK);
+//		LodConfig.CLIENT.worldGenerator.generationResolution.set(HorizontalResolution.BLOCK);
+		// requires a world restart?
+//		LodConfig.CLIENT.worldGenerator.lodQualityMode.set(VerticalQuality.VOXEL);
+
+//		LodConfig.CLIENT.graphics.fogQualityOption.fogDistance.set(FogDistance.FAR);
+//		LodConfig.CLIENT.graphics.fogDrawOverride.set(FogDrawOverride.ALWAYS_DRAW_FOG_FANCY);
+//		LodConfig.CLIENT.graphics.shadingMode.set(ShadingMode.DARKEN_SIDES);
+//		LodConfig.CLIENT.graphics.vanillaOverdraw.set(VanillaOverdraw.HALF);
+
+//		LodConfig.CLIENT.worldGenerator.distanceGenerationMode.set(DistanceGenerationMode.SURFACE);
+//		LodConfig.CLIENT.graphics.qualityOption.lodChunkRenderDistance.set(128);
+//		LodConfig.CLIENT.worldGenerator.lodDistanceCalculatorType.set(DistanceCalculatorType.LINEAR);
+//		LodConfig.CLIENT.worldGenerator.allowUnstableFeatureGeneration.set(false);
+		
+//		LodConfig.CLIENT.buffers.rebuildTimes.set(BufferRebuildTimes.FREQUENT);
+		
+		LodConfig.CLIENT.advancedModOptions.debugging.enableDebugKeybindings.set(true);
+//		LodConfig.CLIENT.debugging.debugMode.set(DebugMode.SHOW_DETAIL);
+	}
 	
 	
 	//==============//
@@ -121,17 +194,42 @@ public class ClientProxy
 	//==============//
 	
 	@SubscribeEvent
-	public void chunkLoadEvent(ChunkEvent.Load event)
+	public void serverTickEvent(TickEvent.ServerTickEvent event)
 	{
-		lodBuilder.generateLodChunkAsync(event.getChunk(), lodWorld, event.getWorld());
+		if (mc == null || mc.getPlayer() == null || lodWorld.getIsWorldNotLoaded())
+			return;
+		
+		LodDimension lodDim = lodWorld.getLodDimension(mc.getPlayer().level.dimensionType());
+		if (lodDim == null)
+			return;
+		
+		lodWorldGenerator.queueGenerationRequests(lodDim, renderer, lodBuilder);
 	}
 	
+	@SubscribeEvent
+	public void chunkLoadEvent(ChunkEvent.Load event)
+	{
+		lodBuilder.generateLodNodeAsync(event.getChunk(), lodWorld, event.getWorld(), DistanceGenerationMode.SERVER);
+	}
 	
+	@SubscribeEvent
+	public void worldSaveEvent(WorldEvent.Save event)
+	{
+		if (lodWorld != null)
+			lodWorld.saveAllDimensions();
+	}
+	
+	/** This is also called when a new dimension loads */
 	@SubscribeEvent
 	public void worldLoadEvent(WorldEvent.Load event)
 	{
+		DataPointUtil.worldHeight = event.getWorld().getHeight();
+		//LodNodeGenWorker.restartExecutorService();
+		//ThreadMapUtil.clearMaps();
+		
 		// the player just loaded a new world/dimension
-		lodWorld.selectWorld(LodUtils.getWorldID(event.getWorld()));
+		lodWorld.selectWorld(LodUtil.getWorldID(event.getWorld()));
+		
 		// make sure the correct LODs are being rendered
 		// (if this isn't done the previous world's LODs may be drawn)
 		renderer.regenerateLODsNextFrame();
@@ -141,30 +239,136 @@ public class ClientProxy
 	public void worldUnloadEvent(WorldEvent.Unload event)
 	{
 		// the player just unloaded a world/dimension
+		ThreadMapUtil.clearMaps();
 		
-		if(mc.getConnection().getWorld() == null)
+		
+		if (mc.getConnection().getLevel() == null)
 		{
-			lodBufferBuilder.numberOfChunksWaitingToGenerate = 0;
-			// the player has disconnected from a server
+			// the player just left the server
+			
+			// if this isn't done unfinished tasks may be left in the queue
+			// preventing new LodChunks form being generated
+			//LodNodeGenWorker.restartExecutorService();
+			//ThreadMapUtil.clearMaps();
+			
+			LodWorldGenerator.INSTANCE.numberOfChunksWaitingToGenerate.set(0);
 			lodWorld.deselectWorld();
+			
+			
+			// hopefully this should reduce issues related to the buffer builder
+			// breaking when changing worlds.
+			renderer.destroyBuffers();
+			recalculateWidths = true;
+			renderer = new LodRenderer(lodBufferBuilder);
+			
+			
+			// make sure the nilled objects are freed.
+			// (this prevents an out of memory error when
+			// changing worlds)
+			System.gc();
 		}
 	}
 	
-	
 	@SubscribeEvent
 	public void blockChangeEvent(BlockEvent event)
 	{
 		if (event.getClass() == BlockEvent.BreakEvent.class ||
-			event.getClass() == BlockEvent.EntityPlaceEvent.class ||
-			event.getClass() == BlockEvent.EntityMultiPlaceEvent.class ||
-			event.getClass() == BlockEvent.FluidPlaceBlockEvent.class ||
-			event.getClass() == BlockEvent.PortalSpawnEvent.class)
+				event.getClass() == BlockEvent.EntityPlaceEvent.class ||
+				event.getClass() == BlockEvent.EntityMultiPlaceEvent.class ||
+				event.getClass() == BlockEvent.FluidPlaceBlockEvent.class ||
+				event.getClass() == BlockEvent.PortalSpawnEvent.class)
 		{
 			// recreate the LOD where the blocks were changed
-			lodBuilder.generateLodChunkAsync(event.getWorld().getChunk(event.getPos()), lodWorld, event.getWorld());
+			lodBuilder.generateLodNodeAsync(event.getWorld().getChunk(event.getPos()), lodWorld, event.getWorld());
 		}
 	}
 	
+	@SubscribeEvent
+	public void onKeyInput(InputEvent.KeyInputEvent event)
+	{
+		if (LodConfig.CLIENT.advancedModOptions.debugging.enableDebugKeybindings.get()
+				&& event.getKey() == GLFW.GLFW_KEY_F4 && event.getAction() == GLFW.GLFW_PRESS)
+		{
+			LodConfig.CLIENT.advancedModOptions.debugging.debugMode.set(LodConfig.CLIENT.advancedModOptions.debugging.debugMode.get().getNext());
+		}
+		
+		if (LodConfig.CLIENT.advancedModOptions.debugging.enableDebugKeybindings.get()
+				&& event.getKey() == GLFW.GLFW_KEY_F6 && event.getAction() == GLFW.GLFW_PRESS)
+		{
+			LodConfig.CLIENT.advancedModOptions.debugging.drawLods.set(!LodConfig.CLIENT.advancedModOptions.debugging.drawLods.get());
+		}
+	}
+	
+	
+	
+	
+	//============//
+	// LOD events //
+	//============//
+	
+	/** Re-centers the given LodDimension if it needs to be. */
+	private void playerMoveEvent(LodDimension lodDim)
+	{
+		// make sure the dimension is centered
+		RegionPos playerRegionPos = new RegionPos(mc.getPlayer().blockPosition());
+		RegionPos worldRegionOffset = new RegionPos(playerRegionPos.x - lodDim.getCenterRegionPosX(), playerRegionPos.z - lodDim.getCenterRegionPosZ());
+		if (worldRegionOffset.x != 0 || worldRegionOffset.z != 0)
+		{
+			lodWorld.saveAllDimensions();
+			lodDim.move(worldRegionOffset);
+			//LOGGER.info("offset: " + worldRegionOffset.x + "," + worldRegionOffset.z + "\t center: " + lodDim.getCenterX() + "," + lodDim.getCenterZ());
+		}
+	}
+	
+	
+	/** Re-sizes all LodDimensions if they need to be. */
+	private void viewDistanceChangedEvent()
+	{
+		// calculate how wide the dimension(s) should be in regions
+		int chunksWide;
+		if (mc.getClientWorld().dimensionType().hasCeiling())
+			chunksWide = Math.min(LodConfig.CLIENT.graphics.qualityOption.lodChunkRenderDistance.get(), LodUtil.CEILED_DIMENSION_MAX_RENDER_DISTANCE) * 2 + 1;
+		else
+			chunksWide = LodConfig.CLIENT.graphics.qualityOption.lodChunkRenderDistance.get() * 2 + 1;
+		
+		int newWidth = (int) Math.ceil(chunksWide / (float) LodUtil.REGION_WIDTH_IN_CHUNKS);
+		// make sure we have an odd number of regions
+		newWidth += (newWidth & 1) == 0 ? 1 : 2;
+		
+		// do the dimensions need to change in size?
+		if (lodBuilder.defaultDimensionWidthInRegions != newWidth || recalculateWidths)
+		{
+			lodWorld.saveAllDimensions();
+			
+			// update the dimensions to fit the new width
+			lodWorld.resizeDimensionRegionWidth(newWidth);
+			lodBuilder.defaultDimensionWidthInRegions = newWidth;
+			renderer.setupBuffers(lodWorld.getLodDimension(mc.getClientWorld().dimensionType()));
+			
+			recalculateWidths = false;
+			//LOGGER.info("new dimension width in regions: " + newWidth + "\t potential: " + newWidth );
+		}
+		DetailDistanceUtil.updateSettings();
+	}
+	
+	
+	/** This event is called once during the first frame Minecraft renders in the world. */
+	public void firstFrameSetup()
+	{
+		// make sure the GlProxy is created before the LodBufferBuilder needs it
+		GlProxy.getInstance();
+		
+		firstTimeSetupComplete = true;
+	}
+	
+	/** this method reset some static data every time we change world */
+	private void resetMod()
+	{
+		ThreadMapUtil.clearMaps();
+		LodGenWorker.restartExecutorService();
+		
+	}
+	
 	
 	
 	
@@ -182,7 +386,7 @@ public class ClientProxy
 		return lodBuilder;
 	}
 	
-	public static LodRender getRenderer()
+	public static LodRenderer getRenderer()
 	{
 		return renderer;
 	}
@@ -0,0 +1,211 @@
+/*
+ *    This file is part of the Distant Horizon mod (formerly the LOD Mod),
+ *    licensed under the GNU GPL v3 License.
+ *
+ *    Copyright (C) 2020  James Seibel
+ *
+ *    This program is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, version 3.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.seibel.lod.proxy;
+
+import org.lwjgl.glfw.GLFW;
+import org.lwjgl.opengl.GL;
+import org.lwjgl.opengl.GLCapabilities;
+
+import com.mojang.blaze3d.systems.RenderSystem;
+import com.seibel.lod.enums.GlProxyContext;
+
+/**
+ * A singleton that holds references to different openGL contexts
+ * and GPU capabilities.
+ *
+ * <p>
+ * Helpful OpenGL resources: <br><br>
+ * <p>
+ * https://www.seas.upenn.edu/~pcozzi/OpenGLInsights/OpenGLInsights-AsynchronousBufferTransfers.pdf <br>
+ * https://learnopengl.com/Advanced-OpenGL/Advanced-Data <br>
+ * https://gamedev.stackexchange.com/questions/91995/edit-vbo-data-or-create-a-new-one <br><br>
+ * 
+ * @author James Seibel
+ * @version 10-2-2021
+ */
+public class GlProxy
+{
+	private static GlProxy instance = null;
+	
+	/** Minecraft's GLFW window */
+	public final long minecraftGlContext;
+	/** Minecraft's GL context */
+	public final GLCapabilities minecraftGlCapabilities;
+	
+	/** the LodBuilder's GLFW window */
+	public final long lodBuilderGlContext;
+	/** the LodBuilder's GL context */
+	public final GLCapabilities lodBuilderGlCapabilities;
+	
+	/**
+	 * This is just used for debugging, hopefully it can be removed once
+	 * the context switching is more stable.
+	 */
+	public Thread lodBuilderOwnerThread = null;
+	
+	/** Does this computer's GPU support fancy fog? */
+	public final boolean fancyFogAvailable;
+	
+	
+	
+	private GlProxy()
+	{
+		// getting Minecraft's context has to be done on the render thread,
+		// where the GL context is
+		if (!RenderSystem.isOnRenderThread())
+			throw new IllegalStateException(GlProxy.class.getSimpleName() + " was created outside the render thread!");
+		
+		
+		
+		
+		//============================//
+		// create the builder context //
+		//============================//
+		
+		// get Minecraft's context
+		minecraftGlContext = GLFW.glfwGetCurrentContext();
+		minecraftGlCapabilities = GL.getCapabilities();
+		
+		// create the LodBuilder's context
+		
+		// Hopefully this shouldn't cause any issues with other mods that need custom contexts
+		// (although the number that do should be relatively few)
+		GLFW.glfwWindowHint(GLFW.GLFW_VISIBLE, GLFW.GLFW_FALSE);
+		
+		// create an invisible window to hold the context
+		lodBuilderGlContext = GLFW.glfwCreateWindow(640, 480, "LOD window", 0L, minecraftGlContext);
+		GLFW.glfwMakeContextCurrent(lodBuilderGlContext);
+		lodBuilderGlCapabilities = GL.createCapabilities();
+		
+		// Since this is called on the render thread, make sure the Minecraft context is used in the end
+		GLFW.glfwMakeContextCurrent(minecraftGlContext);
+		GL.setCapabilities(minecraftGlCapabilities);
+		
+		
+		
+		
+		//==================================//
+		// get any GPU related capabilities //
+		//==================================//
+		
+		// see if this GPU can run fancy fog
+		fancyFogAvailable = GL.getCapabilities().GL_NV_fog_distance;
+		
+		if (!fancyFogAvailable)
+			ClientProxy.LOGGER.info("This GPU does not support GL_NV_fog_distance. This means that the fancy fog option will not be available.");
+	}
+	
+	
+	
+	
+	/**
+	 * A wrapper function to make switching contexts easier. <br>
+	 * Does nothing if the calling thread is already using newContext.
+	 */
+	public void setGlContext(GlProxyContext newContext)
+	{
+		GlProxyContext currentContext = getGlContext();
+		
+		// we don't have to change the context, we're already there.
+		if (currentContext == newContext)
+			return;
+		
+		
+		long contextPointer = 0L;
+		GLCapabilities newGlCapabilities = null;
+		
+		// get the pointer(s) for this context
+		switch (newContext)
+		{
+		case LOD_BUILDER:
+			contextPointer = lodBuilderGlContext;
+			newGlCapabilities = lodBuilderGlCapabilities;
+			break;
+		
+		case MINECRAFT:
+			contextPointer = minecraftGlContext;
+			newGlCapabilities = minecraftGlCapabilities;
+			break;
+		
+		default: // default should never happen, it is just here to make the compiler happy
+		case NONE:
+			// 0L is equivalent to null
+			break;
+		}
+		
+		
+		GLFW.glfwMakeContextCurrent(contextPointer);
+		GL.setCapabilities(newGlCapabilities);
+		
+		
+		
+		// used for debugging
+		if (newContext == GlProxyContext.LOD_BUILDER)
+			lodBuilderOwnerThread = Thread.currentThread();
+		else if (newContext == GlProxyContext.NONE && currentContext == GlProxyContext.LOD_BUILDER)
+			lodBuilderOwnerThread = null;
+	}
+	
+	
+	
+	
+	
+	/** Returns this thread's OpenGL context. */
+	public GlProxyContext getGlContext()
+	{
+		long currentContext = GLFW.glfwGetCurrentContext();
+		
+		
+		if (currentContext == lodBuilderGlContext)
+			return GlProxyContext.LOD_BUILDER;
+		else if (currentContext == minecraftGlContext)
+			return GlProxyContext.MINECRAFT;
+		else if (currentContext == 0L)
+			return GlProxyContext.NONE;
+		else
+			// hopefully this shouldn't happen, but
+			// at least now we will be notified if it does happen
+			throw new IllegalStateException(Thread.currentThread().getName() + " has a unknown OpenGl context: [" + currentContext + "]. Minecraft context [" + minecraftGlContext + "], LodBuilder context [" + lodBuilderGlContext + "], no context [0].");
+	}
+	
+	
+	public static GlProxy getInstance()
+	{
+		try
+		{
+			if (instance == null)
+				instance = new GlProxy();
+		}
+		catch (Exception e)
+		{
+			e.printStackTrace();
+		}
+		
+		return instance;
+	}
+	
+	
+	
+	
+	
+	
+	
+	
+}
@@ -1,639 +0,0 @@
-package com.seibel.lod.render;
-
-import java.nio.ByteBuffer;
-import java.nio.ByteOrder;
-import java.nio.FloatBuffer;
-
-import org.lwjgl.opengl.GL11;
-
-import com.mojang.blaze3d.matrix.MatrixStack;
-import com.mojang.blaze3d.platform.GlStateManager;
-import com.mojang.blaze3d.systems.RenderSystem;
-import com.seibel.lod.builders.LodBufferBuilder;
-import com.seibel.lod.enums.FogDistance;
-import com.seibel.lod.enums.FogQuality;
-import com.seibel.lod.handlers.ReflectionHandler;
-import com.seibel.lod.objects.LodChunk;
-import com.seibel.lod.objects.LodDimension;
-import com.seibel.lod.objects.NearFarBuffer;
-import com.seibel.lod.objects.NearFarFogSetting;
-import com.seibel.lod.util.LodConfig;
-
-import net.minecraft.client.Minecraft;
-import net.minecraft.client.entity.player.ClientPlayerEntity;
-import net.minecraft.client.renderer.ActiveRenderInfo;
-import net.minecraft.client.renderer.BufferBuilder;
-import net.minecraft.client.renderer.FogRenderer;
-import net.minecraft.client.renderer.GameRenderer;
-import net.minecraft.client.renderer.vertex.DefaultVertexFormats;
-import net.minecraft.client.renderer.vertex.VertexBuffer;
-import net.minecraft.client.renderer.vertex.VertexFormat;
-import net.minecraft.potion.Effects;
-import net.minecraft.profiler.IProfiler;
-import net.minecraft.util.math.MathHelper;
-import net.minecraft.util.math.vector.Matrix4f;
-import net.minecraft.util.math.vector.Vector3d;
-import net.minecraft.util.math.vector.Vector3f;
-
-
-/**
- * This is where all the magic happens. <br>
- * This is where LODs are draw to the world. 
- * 
- * @author James Seibel
- * @version 05-08-2021
- */
-public class LodRender
-{
-	/** this is the light used when rendering the LODs,
-	 * it should be something different than what is used by Minecraft */
-	private static final int LOD_GL_LIGHT_NUMBER = GL11.GL_LIGHT2;
-
-	/** If true the LODs colors will be replaced with
-	 * a checkerboard, this can be used for debugging. */
-	public boolean debugging = false;
-	
-	private Minecraft mc;
-	private GameRenderer gameRender;
-	private IProfiler profiler;
-	private float farPlaneDistance;
-	private ReflectionHandler reflectionHandler;
-	
-	
-	/** This is used to generate the buildable buffers */
-	private LodBufferBuilder lodBufferBuilder;
-	
-	/** The buffers that are used to draw LODs using near fog */
-	private volatile BufferBuilder drawableNearBuffer;
-	/** The buffers that are used to draw LODs using far fog */
-	private volatile BufferBuilder drawableFarBuffer;
-	
-	/** This is the VertexBuffer used to draw any LODs that use near fog */
-	private volatile VertexBuffer nearVbo;
-	/** This is the VertexBuffer used to draw any LODs that use far fog */
-	private volatile VertexBuffer farVbo;
-	public static final VertexFormat LOD_VERTEX_FORMAT = DefaultVertexFormats.POSITION_COLOR;
-	
-	/** This is used to determine if the LODs should be regenerated */
-	private int previousChunkRenderDistance = 0;
-	/** This is used to determine if the LODs should be regenerated */
-	private int prevChunkX = 0;
-	/** This is used to determine if the LODs should be regenerated */
-	private int prevChunkZ = 0;
-	/** This is used to determine if the LODs should be regenerated */
-	private FogDistance prevFogDistance = FogDistance.NEAR_AND_FAR;
-	
-	/** if this is true the LOD buffers should be regenerated,
-	 * provided they aren't already being regenerated. */
-	private boolean regen = false;
-	
-	
-	
-	
-	
-	public LodRender(LodBufferBuilder newLodBufferBuilder)
-	{
-		mc = Minecraft.getInstance();
-		gameRender = mc.gameRenderer;
-		
-		reflectionHandler = new ReflectionHandler();
-		lodBufferBuilder = newLodBufferBuilder;
-	}
-	
-	
-	/**
-	 * Besides drawing the LODs this method also starts
-	 * the async process of generating the Buffers that hold those LODs.
-	 * 
-	 * @param newDimension The dimension to draw, if null doesn't replace the current dimension.
-	 * @param partialTicks how far into the current tick this method was called.
-	 */
-	@SuppressWarnings("deprecation")
-	public void drawLODs(LodDimension lodDim, float partialTicks, IProfiler newProfiler)
-	{		
-		if (lodDim == null)
-		{
-			// if there aren't any loaded LodChunks
-			// don't try drawing anything
-			return;
-		}
-		
-		
-		
-		
-		
-		
-		//===============//
-		// initial setup //
-		//===============//
-		
-		profiler = newProfiler;
-		profiler.startSection("LOD setup");
-		
-		ClientPlayerEntity player = mc.player;
-		
-		// should LODs be regenerated?
-		if ((int)player.getPosX() / LodChunk.WIDTH != prevChunkX ||
-			(int)player.getPosZ() / LodChunk.WIDTH != prevChunkZ ||
-			previousChunkRenderDistance != mc.gameSettings.renderDistanceChunks ||
-			prevFogDistance != LodConfig.CLIENT.fogDistance.get())
-		{
-			// yes
-			regen = true;
-			
-			prevChunkX = (int)player.getPosX() / LodChunk.WIDTH;
-			prevChunkZ = (int)player.getPosZ() / LodChunk.WIDTH;
-			prevFogDistance = LodConfig.CLIENT.fogDistance.get();
-		}
-		else
-		{
-			// nope, the player hasn't moved, the
-			// render distance hasn't changed, and
-			// the dimension is the same
-		}
-		
-		// did the user change the debug setting?
-		if (LodConfig.CLIENT.debugMode.get() != debugging)
-		{
-			debugging = LodConfig.CLIENT.debugMode.get();
-			regen = true;
-		}
-		
-		
-		// determine how far the game's render distance is currently set
-		int renderDistWidth = mc.gameSettings.renderDistanceChunks;
-		farPlaneDistance = renderDistWidth * LodChunk.WIDTH;
-		
-		// set how big the LODs will be and how far they will go
-		int totalLength = (int) farPlaneDistance * LodConfig.CLIENT.lodChunkRadiusMultiplier.get() * 2;
-		int numbChunksWide = (totalLength / LodChunk.WIDTH);
-		
-		
-		
-		
-		//=================//
-		// create the LODs //
-		//=================//
-		
-		// only regenerate the LODs if:
-		// 1. we want to regenerate LODs
-		// 2. we aren't already regenerating the LODs
-		// 3. we aren't waiting for the build and draw buffers to swap
-		//		(this is to prevent thread conflicts)
-		if (regen && !lodBufferBuilder.generatingBuffers && !lodBufferBuilder.newBuffersAvaliable())
-		{
-			// this will mainly happen when the view distance is changed
-			if (drawableNearBuffer == null || drawableFarBuffer == null || 
-				previousChunkRenderDistance != mc.gameSettings.renderDistanceChunks)
-				setupBuffers(numbChunksWide);
-			
-			// generate the LODs on a separate thread to prevent stuttering or freezing
-			lodBufferBuilder.generateLodBuffersAsync(this, lodDim, player.getPosX(), player.getPosZ(), numbChunksWide);
-			
-			// the regen process has been started,
-			// it will be done when lodBufferBuilder.newBuffersAvaliable
-			// is true
-			regen = false;
-		}
-		
-		// replace the buffers used to draw and build,
-		// this is only done when the createLodBufferGenerationThread
-		// has finished executing on a parallel thread.
-		if (lodBufferBuilder.newBuffersAvaliable())
-		{
-			swapBuffers();
-		}
-		
-		
-		
-		
-		
-		//===========================//
-		// GL settings for rendering //
-		//===========================//
-		
-		// set the required open GL settings
-		GL11.glPolygonMode(GL11.GL_FRONT_AND_BACK, GL11.GL_FILL);
-		GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);
-		GL11.glDisable(GL11.GL_TEXTURE_2D);
-		GL11.glEnable(GL11.GL_CULL_FACE);
-		GL11.glEnable(GL11.GL_COLOR_MATERIAL);
-		GL11.glEnable(GL11.GL_DEPTH_TEST);
-		
-		// disable the lights Minecraft uses
-		GL11.glDisable(GL11.GL_LIGHT0);
-		GL11.glDisable(GL11.GL_LIGHT1);
-		
-		// get the default projection matrix so we can
-		// reset it after drawing the LODs
-		float[] defaultProjMatrix = new float[16];
-        GL11.glGetFloatv(GL11.GL_PROJECTION_MATRIX, defaultProjMatrix);
-		
-		Matrix4f modelViewMatrix = generateModelViewMatrix(partialTicks);
-		
-		setupProjectionMatrix(partialTicks);
-		setupLighting(lodDim, partialTicks);
-		
-		NearFarFogSetting fogSetting = determineFogSettings();
-		
-		// determine the current fog settings so they can be
-		// reset after drawing the LODs
-		float defaultFogStartDist = GL11.glGetFloat(GL11.GL_FOG_START);
-		float defaultFogEndDist = GL11.glGetFloat(GL11.GL_FOG_END);
-		int defaultFogMode = GL11.glGetInteger(GL11.GL_FOG_MODE);
-
-		
-		
-		
-		
-		
-		
-		//===========//
-		// rendering //
-		//===========//
-		profiler.endStartSection("LOD draw");
-		
-		setupFog(fogSetting.nearFogSetting, reflectionHandler.getFogQuality());
-		sendLodsToGpuAndDraw(nearVbo, modelViewMatrix);
-		
-		setupFog(fogSetting.farFogSetting, reflectionHandler.getFogQuality());
-		sendLodsToGpuAndDraw(farVbo, modelViewMatrix);
-		
-		
-		
-		
-		
-		//=========//
-		// cleanup //
-		//=========//
-		
-		profiler.endStartSection("LOD cleanup");
-		
-		GL11.glPolygonMode(GL11.GL_FRONT_AND_BACK, GL11.GL_FILL);
-		GL11.glEnable(GL11.GL_TEXTURE_2D);
-		GL11.glDisable(LOD_GL_LIGHT_NUMBER);
-		// re-enable the lights Minecraft uses
-		GL11.glEnable(GL11.GL_LIGHT0);
-		GL11.glEnable(GL11.GL_LIGHT1);
-		RenderSystem.disableLighting();
-		
-		// this can't be called until after the buffers are built
-		// because otherwise the buffers may be set to the wrong size
-		previousChunkRenderDistance = mc.gameSettings.renderDistanceChunks;
-		
-		// reset the fog settings so the normal chunks
-		// will be drawn correctly
-		RenderSystem.fogStart(defaultFogStartDist);
-		RenderSystem.fogEnd(defaultFogEndDist);
-		RenderSystem.fogMode(defaultFogMode);
-		
-		// reset the projection matrix so anything drawn after
-		// the LODs will use the correct projection matrix
-		Matrix4f mvm = new Matrix4f(defaultProjMatrix);
-		mvm.transpose();
-		gameRender.resetProjectionMatrix(mvm);
-		
-		// clear the depth buffer so anything drawn is drawn
-		// over the LODs
-		GL11.glClear(GL11.GL_DEPTH_BUFFER_BIT);
-		
-		
-		// end of internal LOD profiling
-		profiler.endSection();
-	}
-	
-	
-
-	/**
-	 * This is where the actual drawing happens.
-	 * 
-	 * @param buffers the buffers sent to the GPU to draw
-	 */
-	private void sendLodsToGpuAndDraw(VertexBuffer vbo, Matrix4f modelViewMatrix)
-	{
-		if (vbo == null)
-			return;
-		
-        vbo.bindBuffer();
-        // 0L is the starting pointer
-        LOD_VERTEX_FORMAT.setupBufferState(0L);
-        
-        vbo.draw(modelViewMatrix, GL11.GL_QUADS);
-        
-        VertexBuffer.unbindBuffer();
-        LOD_VERTEX_FORMAT.clearBufferState();
-	}
-	
-	
-	
-	
-	
-	
-	
-	//=================//
-	// Setup Functions //
-	//=================//
-	
-	@SuppressWarnings("deprecation")
-	private void setupFog(FogDistance fogDistance, FogQuality fogQuality)
-	{
-		if(fogQuality == FogQuality.OFF)
-		{
-			FogRenderer.resetFog();
-			RenderSystem.disableFog();
-			return;
-		}
-		
-		if(fogDistance == FogDistance.NEAR_AND_FAR)
-		{
-			throw new IllegalArgumentException("setupFog doesn't accept the NEAR_AND_FAR fog distance.");
-		}
-
-		// the multipliers are percentages
-		// of the regular view distance.
-		
-		if(fogDistance == FogDistance.NEAR)
-		{
-			// the reason that I wrote fogEnd then fogStart backwards
-			// is because we are using fog backwards to how
-			// it is normally used, with it hiding near objects
-			// instead of far objects.
-			
-			if (fogQuality == FogQuality.FANCY)
-			{
-				RenderSystem.fogEnd(farPlaneDistance * 1.75f);
-				RenderSystem.fogStart(farPlaneDistance * 1.95f);
-			}
-			else if(fogQuality == FogQuality.FAST)
-			{
-				// for the far fog of the normal chunks
-				// to start right where the LODs' end use:
-				// end = 0.8f, start = 1.5f
-				
-				RenderSystem.fogEnd(farPlaneDistance * 1.5f);
-				RenderSystem.fogStart(farPlaneDistance * 2.0f);
-			}
-		}
-		else if(fogDistance == FogDistance.FAR)
-		{
-			if (fogQuality == FogQuality.FANCY)
-			{
-				RenderSystem.fogStart(farPlaneDistance * 0.85f * LodConfig.CLIENT.lodChunkRadiusMultiplier.get());
-				RenderSystem.fogEnd(farPlaneDistance * 1.0f * LodConfig.CLIENT.lodChunkRadiusMultiplier.get());
-			}
-			else if(fogQuality == FogQuality.FAST)
-			{
-				RenderSystem.fogStart(farPlaneDistance * 0.5f * LodConfig.CLIENT.lodChunkRadiusMultiplier.get());
-				RenderSystem.fogEnd(farPlaneDistance * 0.75f * LodConfig.CLIENT.lodChunkRadiusMultiplier.get());
-			}
-		}
-		
-		RenderSystem.fogMode(GlStateManager.FogMode.LINEAR);
-		RenderSystem.enableFog();
-	}
-	
-
-	/**
-	 * Create the model view matrix to move the LODs
-	 * from object space into world space.
-	 */
-	private Matrix4f generateModelViewMatrix(float partialTicks)
-	{
-		// get all relevant camera info
-		ActiveRenderInfo renderInfo = mc.gameRenderer.getActiveRenderInfo();
-        Vector3d projectedView = renderInfo.getProjectedView();
-		
-		
-		// generate the model view matrix
-		MatrixStack matrixStack = new MatrixStack();
-        matrixStack.push();
-        // translate and rotate to the current camera location
-        matrixStack.rotate(Vector3f.XP.rotationDegrees(renderInfo.getPitch()));
-        matrixStack.rotate(Vector3f.YP.rotationDegrees(renderInfo.getYaw() + 180));
-        matrixStack.translate(-projectedView.x, -projectedView.y, -projectedView.z);
-        
-        return matrixStack.getLast().getMatrix();
-	}
-	
-	
-	/**
-	 * create a new projection matrix and send it over to the GPU
-	 * <br><br>
-	 * A lot of this code is copied from renderWorld (line 578)
-	 * in the GameRender class. The code copied is anything with
-	 * a matrixStack and is responsible for making sure the LOD
-	 * objects distort correctly relative to the rest of the world.
-	 * Distortions are caused by: standing in a nether portal,
-	 * nausea potion effect, walking bobbing.
-	 * 
-	 * @param partialTicks how many ticks into the frame we are
-	 */
-	private void setupProjectionMatrix(float partialTicks)
-	{
-		// Note: if the LOD objects don't distort correctly
-		// compared to regular minecraft terrain, make sure
-		// all the transformations in renderWorld are here too
-		
-		MatrixStack matrixStack = new MatrixStack();
-        matrixStack.push();
-		
-		gameRender.hurtCameraEffect(matrixStack, partialTicks);
-		if (this.mc.gameSettings.viewBobbing) {
-			gameRender.applyBobbing(matrixStack, partialTicks);
-		}
-		
-		// potion and nausea effects
-		float f = MathHelper.lerp(partialTicks, mc.player.prevTimeInPortal, mc.player.timeInPortal) * mc.gameSettings.screenEffectScale * mc.gameSettings.screenEffectScale;
-		if (f > 0.0F) {
-			int i = this.mc.player.isPotionActive(Effects.NAUSEA) ? 7 : 20;
-			float f1 = 5.0F / (f * f + 5.0F) - f * 0.04F;
-			f1 = f1 * f1;
-			Vector3f vector3f = new Vector3f(0.0F, MathHelper.SQRT_2 / 2.0F, MathHelper.SQRT_2 / 2.0F);
-			matrixStack.rotate(vector3f.rotationDegrees((gameRender.rendererUpdateCount + partialTicks) * i));
-			matrixStack.scale(1.0F / f1, 1.0F, 1.0F);
-			float f2 = -(gameRender.rendererUpdateCount + partialTicks) * i;
-			matrixStack.rotate(vector3f.rotationDegrees(f2));
-		}
-		
-		
-		
-		// this projection matrix allows us to see past the normal 
-		// world render distance
-		Matrix4f projectionMatrix = 
-				Matrix4f.perspective(
-				getFov(partialTicks, true), 
-				(float)this.mc.getMainWindow().getFramebufferWidth() / (float)this.mc.getMainWindow().getFramebufferHeight(), 
-				0.5F, 
-				this.farPlaneDistance * LodConfig.CLIENT.lodChunkRadiusMultiplier.get() * 2);
-		
-		// add the screen space distortions
-		projectionMatrix.mul(matrixStack.getLast().getMatrix());
-		gameRender.resetProjectionMatrix(projectionMatrix);
-		return;
-	}
-	
-	
-	/**
-	 * setup the lighting to be used for the LODs
-	 */
-	@SuppressWarnings("deprecation")
-	private void setupLighting(LodDimension lodDimension, float partialTicks)
-	{
-		float sunBrightness = lodDimension.dimension.hasSkyLight() ? mc.world.getSunBrightness(partialTicks) : 0.2f;
-		float gammaMultiplyer = (float)mc.gameSettings.gamma - 0.5f;
-		float lightStrength = sunBrightness - 0.4f + (gammaMultiplyer * 0.2f);
-		
-		float lightAmbient[] = {lightStrength, lightStrength, lightStrength, 1.0f};
-		
-		ByteBuffer temp = ByteBuffer.allocateDirect(16);
-		temp.order(ByteOrder.nativeOrder());
-		GL11.glLightfv(LOD_GL_LIGHT_NUMBER, GL11.GL_AMBIENT, (FloatBuffer) temp.asFloatBuffer().put(lightAmbient).flip());
-		GL11.glEnable(LOD_GL_LIGHT_NUMBER); // Enable the above lighting
-		
-		RenderSystem.enableLighting();
-	}
-	
-	
-	/**
-	 * Create all buffers that will be used.
-	 */
-	private void setupBuffers(int numbChunksWide)
-	{
-		// calculate the max amount of storage needed (in bytes)
-		int bufferMaxCapacity = (numbChunksWide * numbChunksWide * (6 * 4 * (3 + 4)));
-		// (numbChunksWide * numbChunksWide * 
-		// (sidesOnACube * pointsInASquare * (positionPoints + colorPoints)))
-		
-		// TODO complain or do something when memory is too low
-		// currently the VM will just crash and complain there is no more memory
-		// issue #4
-		drawableNearBuffer = new BufferBuilder(bufferMaxCapacity);
-		drawableFarBuffer = new BufferBuilder(bufferMaxCapacity);
-		
-		lodBufferBuilder.setupBuffers(bufferMaxCapacity);
-	}
-	
-	
-
-	
-	
-	
-	
-	
-	//======================//
-	// Other Misc Functions // 
-	//======================//
-	
-	/**
-	 * If this is called then the next time "drawLODs" is called
-	 * the LODs will be regenerated; the same as if the player moved.
-	 */
-	public void regenerateLODsNextFrame()
-	{
-		regen = true;
-	}
-	
-	
-	/**
-	 * Replace the current drawable buffers with the newly
-	 * created buffers from the lodBufferBuilder.
-	 */
-	private void swapBuffers()
-	{
-		// replace the drawable buffers with
-		// the newly created buffers from the lodBufferBuilder
-		NearFarBuffer newBuffers = lodBufferBuilder.swapBuffers(drawableNearBuffer, drawableFarBuffer);
-		drawableNearBuffer = newBuffers.nearBuffer;
-		drawableFarBuffer = newBuffers.farBuffer;
-		
-		
-		// bind the buffers with their respective VBOs
-		if (nearVbo != null)
-			nearVbo.close();
-		
-		nearVbo = new VertexBuffer(LOD_VERTEX_FORMAT);
-		nearVbo.upload(drawableNearBuffer);
-		
-		
-		if (farVbo != null)
-			farVbo.close();
-		
-		farVbo = new VertexBuffer(LOD_VERTEX_FORMAT);
-		farVbo.upload(drawableFarBuffer);
-	}
-	
-	
-	private double getFov(float partialTicks, boolean useFovSetting)
-	{
-		return mc.gameRenderer.getFOVModifier(mc.gameRenderer.getActiveRenderInfo(), partialTicks, useFovSetting);
-	}
-	
-	
-	/**
-	 * Based on the fogDistance setting and
-	 * optifine's fogQuality setting return what fog
-	 * settings should be used when rendering.
-	 */
-	private NearFarFogSetting determineFogSettings()
-	{
-		NearFarFogSetting fogSetting = new NearFarFogSetting();
-		
-		switch(reflectionHandler.getFogQuality())
-		{
-		case FANCY:
-			
-			switch(LodConfig.CLIENT.fogDistance.get())
-			{
-			case NEAR_AND_FAR:
-				fogSetting.nearFogSetting = FogDistance.NEAR;
-				fogSetting.farFogSetting = FogDistance.FAR;
-				break;
-				
-			case NEAR:
-				fogSetting.nearFogSetting = FogDistance.NEAR;
-				fogSetting.farFogSetting = FogDistance.NEAR;
-				break;
-				
-			case FAR:
-				fogSetting.nearFogSetting = FogDistance.FAR;
-				fogSetting.farFogSetting = FogDistance.FAR;
-				break;
-			}
-			
-			break;
-		case FAST:
-			// fast fog setting should only have one type of
-			// fog, since the LODs are separated into a near
-			// and far portion; and fast fog is rendered from the
-			// frustrum's perspective instead of the camera
-			
-			switch(LodConfig.CLIENT.fogDistance.get())
-			{
-			case NEAR_AND_FAR:
-				fogSetting.nearFogSetting = FogDistance.NEAR;
-				fogSetting.farFogSetting = FogDistance.NEAR;
-				break;
-				
-			case NEAR:
-				fogSetting.nearFogSetting = FogDistance.NEAR;
-				fogSetting.farFogSetting = FogDistance.NEAR;
-				break;
-				
-			case FAR:
-				fogSetting.nearFogSetting = FogDistance.FAR;
-				fogSetting.farFogSetting = FogDistance.FAR;
-				break;
-			}
-			
-			break;
-		case OFF:
-			break;
-		
-		}
-		
-		return fogSetting;
-	}
-	
-	
-	
-}
@@ -0,0 +1,919 @@
+/*
+ *    This file is part of the Distant Horizon mod (formerly the LOD Mod),
+ *    licensed under the GNU GPL v3 License.
+ *
+ *    Copyright (C) 2020  James Seibel
+ *
+ *    This program is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, version 3.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.seibel.lod.render;
+
+import java.util.HashSet;
+
+import org.lwjgl.opengl.GL11;
+import org.lwjgl.opengl.GL15;
+import org.lwjgl.opengl.GL15C;
+import org.lwjgl.opengl.NVFogDistance;
+
+import com.mojang.blaze3d.matrix.MatrixStack;
+import com.mojang.blaze3d.platform.GlStateManager;
+import com.mojang.blaze3d.systems.RenderSystem;
+import com.seibel.lod.builders.bufferBuilding.LodBufferBuilder;
+import com.seibel.lod.builders.bufferBuilding.LodBufferBuilder.VertexBuffersAndOffset;
+import com.seibel.lod.config.LodConfig;
+import com.seibel.lod.enums.DebugMode;
+import com.seibel.lod.enums.FogDistance;
+import com.seibel.lod.enums.FogDrawOverride;
+import com.seibel.lod.enums.FogQuality;
+import com.seibel.lod.handlers.ReflectionHandler;
+import com.seibel.lod.objects.LodDimension;
+import com.seibel.lod.objects.NearFarFogSettings;
+import com.seibel.lod.objects.RegionPos;
+import com.seibel.lod.proxy.ClientProxy;
+import com.seibel.lod.proxy.GlProxy;
+import com.seibel.lod.util.DetailDistanceUtil;
+import com.seibel.lod.util.LevelPosUtil;
+import com.seibel.lod.util.LodUtil;
+import com.seibel.lod.wrappers.MinecraftWrapper;
+
+import net.minecraft.client.renderer.ActiveRenderInfo;
+import net.minecraft.client.renderer.FogRenderer;
+import net.minecraft.client.renderer.GameRenderer;
+import net.minecraft.client.renderer.texture.NativeImage;
+import net.minecraft.client.renderer.vertex.VertexBuffer;
+import net.minecraft.profiler.IProfiler;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.util.math.ChunkPos;
+import net.minecraft.util.math.vector.Matrix4f;
+import net.minecraft.util.math.vector.Vector3d;
+
+
+/**
+ * This is where all the magic happens. <br>
+ * This is where LODs are draw to the world.
+ * 
+ * @author James Seibel
+ * @version 10-19-2021
+ */
+public class LodRenderer
+{
+	/**
+	 * this is the light used when rendering the LODs,
+	 * it should be something different from what is used by Minecraft
+	 */
+	private static final int LOD_GL_LIGHT_NUMBER = GL11.GL_LIGHT2;
+	
+	/**
+	 * If true the LODs colors will be replaced with
+	 * a checkerboard, this can be used for debugging.
+	 */
+	public DebugMode previousDebugMode = DebugMode.OFF;
+	
+	private final MinecraftWrapper mc;
+	private final GameRenderer gameRender;
+	private IProfiler profiler;
+	private int farPlaneBlockDistance;
+	
+	
+	/** This is used to generate the buildable buffers */
+	private final LodBufferBuilder lodBufferBuilder;
+	
+	/** Each VertexBuffer represents 1 region */
+	private VertexBuffer[][][] vbos;
+	/**
+	 * the OpenGL IDs for the vbos of the same indices.
+	 * These have to be separate because we can't override the
+	 * buffers in the VBOs (and we don't want to)
+	 */
+	private int[][][] storageBufferIds;
+	
+	private ChunkPos vbosCenter = new ChunkPos(0, 0);
+	
+	
+	/** This is used to determine if the LODs should be regenerated */
+	private int[] previousPos = new int[] { 0, 0, 0 };
+	
+	public NativeImage lightMap = null;
+	
+	// these variables are used to determine if the buffers should be rebuilt
+	private float prevSkyBrightness = 0;
+	private double prevBrightness = 0;
+	private int prevRenderDistance = 0;
+	private long prevPlayerPosTime = 0;
+	private long prevVanillaChunkTime = 0;
+	private long prevChunkTime = 0;
+	
+	
+	/** This is used to determine if the LODs should be regenerated */
+	private FogDistance prevFogDistance = FogDistance.NEAR_AND_FAR;
+	
+	/**
+	 * if this is true the LOD buffers should be regenerated,
+	 * provided they aren't already being regenerated.
+	 */
+	private volatile boolean partialRegen = false;
+	private volatile boolean fullRegen = true;
+	
+	/**
+	 * This HashSet contains every chunk that Vanilla Minecraft
+	 * is going to render
+	 */
+	public boolean[][] vanillaRenderedChunks;
+	public boolean vanillaRenderedChunksChanged;
+	public int vanillaBlockRenderedDistance;
+	
+	
+	
+	
+	public LodRenderer(LodBufferBuilder newLodNodeBufferBuilder)
+	{
+		mc = MinecraftWrapper.INSTANCE;
+		gameRender = mc.getGameRenderer();
+		
+		lodBufferBuilder = newLodNodeBufferBuilder;
+	}
+	
+	
+	
+	
+	
+	
+	
+	/**
+	 * Besides drawing the LODs this method also starts
+	 * the async process of generating the Buffers that hold those LODs.
+	 * @param lodDim The dimension to draw, if null doesn't replace the current dimension.
+	 * @param mcMatrixStack This matrix stack should come straight from MC's renderChunkLayer (or future equivalent) method
+	 * @param partialTicks how far into the current tick this method was called.
+	 */
+	public void drawLODs(LodDimension lodDim, MatrixStack mcMatrixStack, float partialTicks, IProfiler newProfiler)
+	{
+		if (lodDim == null)
+		{
+			// if there aren't any loaded LodChunks
+			// don't try drawing anything
+			return;
+		}
+		
+		
+		//===============//
+		// initial setup //
+		//===============//
+		
+		profiler = newProfiler;
+		profiler.push("LOD setup");
+		
+		
+		// TODO move the buffer regeneration logic into its own class (probably called in the client proxy instead)
+		// starting here...
+		determineIfLodsShouldRegenerate(lodDim, partialTicks);
+		
+		//=================//
+		// create the LODs //
+		//=================//
+		
+		// only regenerate the LODs if:
+		// 1. we want to regenerate LODs
+		// 2. we aren't already regenerating the LODs
+		// 3. we aren't waiting for the build and draw buffers to swap
+		//		(this is to prevent thread conflicts)
+		if ((partialRegen || fullRegen) && !lodBufferBuilder.generatingBuffers && !lodBufferBuilder.newBuffersAvailable())
+		{
+			// generate the LODs on a separate thread to prevent stuttering or freezing
+			lodBufferBuilder.generateLodBuffersAsync(this, lodDim, mc.getPlayer().blockPosition(), true);
+			
+			// the regen process has been started,
+			// it will be done when lodBufferBuilder.newBuffersAvailable()
+			// is true
+			fullRegen = false;
+			partialRegen = false;
+		}
+		
+		// TODO move the buffer regeneration logic into its own class (probably called in the client proxy instead)
+		// ...ending here
+		
+		if (lodBufferBuilder.newBuffersAvailable())
+		{
+			swapBuffers();
+		}
+		
+		
+		//===========================//
+		// GL settings for rendering //
+		//===========================//
+		
+		// set the required open GL settings
+		
+		if (LodConfig.CLIENT.advancedModOptions.debugging.debugMode.get() == DebugMode.SHOW_DETAIL_WIREFRAME)
+			GL11.glPolygonMode(GL11.GL_FRONT_AND_BACK, GL11.GL_LINE);
+		else
+			GL11.glPolygonMode(GL11.GL_FRONT_AND_BACK, GL11.GL_FILL);
+		
+		GL11.glDisable(GL11.GL_TEXTURE_2D);
+		GL11.glEnable(GL11.GL_CULL_FACE);
+		GL11.glEnable(GL11.GL_COLOR_MATERIAL);
+		GL11.glEnable(GL11.GL_DEPTH_TEST);
+		
+		// enable transparent rendering
+		GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);
+		GL11.glEnable(GL11.GL_BLEND);
+		
+		// disable the lights Minecraft uses
+		GL11.glDisable(GL11.GL_LIGHT0);
+		GL11.glDisable(GL11.GL_LIGHT1);
+		
+		// get the default projection matrix, so we can
+		// reset it after drawing the LODs
+		float[] mcProjMatrixRaw = new float[16];
+		GL11.glGetFloatv(GL11.GL_PROJECTION_MATRIX, mcProjMatrixRaw);
+		Matrix4f mcProjectionMatrix = new Matrix4f(mcProjMatrixRaw);
+		// OpenGl outputs their matrices in col,row form instead of row,col
+		// (or maybe vice versa I have no idea :P)
+		mcProjectionMatrix.transpose();
+		
+		Matrix4f modelViewMatrix = offsetTheModelViewMatrix(mcMatrixStack, partialTicks);
+		vanillaBlockRenderedDistance = mc.getRenderDistance() * LodUtil.CHUNK_WIDTH;
+		// required for setupFog and setupProjectionMatrix
+		if (mc.getClientWorld().dimensionType().hasCeiling())
+			farPlaneBlockDistance = Math.min(LodConfig.CLIENT.graphics.qualityOption.lodChunkRenderDistance.get(), LodUtil.CEILED_DIMENSION_MAX_RENDER_DISTANCE) * LodUtil.CHUNK_WIDTH;
+		else
+			farPlaneBlockDistance = LodConfig.CLIENT.graphics.qualityOption.lodChunkRenderDistance.get() * LodUtil.CHUNK_WIDTH;
+		
+		setupProjectionMatrix(mcProjectionMatrix, partialTicks);
+		// commented out until we can add shaders to handle lighting
+		//setupLighting(lodDim, partialTicks);
+		
+		NearFarFogSettings fogSettings = determineFogSettings();
+		
+		// determine the current fog settings, so they can be
+		// reset after drawing the LODs
+		float defaultFogStartDist = GL11.glGetFloat(GL11.GL_FOG_START);
+		float defaultFogEndDist = GL11.glGetFloat(GL11.GL_FOG_END);
+		int defaultFogMode = GL11.glGetInteger(GL11.GL_FOG_MODE);
+		int defaultFogDistance = GL11.glGetInteger(NVFogDistance.GL_FOG_DISTANCE_MODE_NV);
+		
+		
+		//===========//
+		// rendering //
+		//===========//
+		
+		profiler.popPush("LOD draw");
+		
+		if (vbos != null)
+		{
+			ActiveRenderInfo renderInfo = mc.getGameRenderer().getMainCamera();
+			Vector3d cameraDir = new Vector3d(renderInfo.getLookVector());
+			
+			boolean cullingDisabled = LodConfig.CLIENT.graphics.advancedGraphicsOption.disableDirectionalCulling.get();
+			
+			// used to determine what type of fog to render
+			int halfWidth = vbos.length / 2;
+			int quarterWidth = vbos.length / 4;
+			
+			// where the center of the built buffers is (needed when culling regions)
+			RegionPos vboCenterRegionPos = new RegionPos(vbosCenter);
+			
+			
+			for (int x = 0; x < vbos.length; x++)
+			{
+				for (int z = 0; z < vbos.length; z++)
+				{
+					RegionPos vboPos = new RegionPos(
+							x + vboCenterRegionPos.x - (lodDim.getWidth() / 2),
+							z + vboCenterRegionPos.z - (lodDim.getWidth() / 2));
+					if (cullingDisabled || RenderUtil.isRegionInViewFrustum(renderInfo.getBlockPosition(), cameraDir, vboPos.blockPos()))
+					{
+						if ((x > halfWidth - quarterWidth && x < halfWidth + quarterWidth) 
+							&& (z > halfWidth - quarterWidth && z < halfWidth + quarterWidth))
+							setupFog(fogSettings.near.distance, fogSettings.near.quality);
+						else
+							setupFog(fogSettings.far.distance, fogSettings.far.quality);
+						
+						
+						for (int i = 0; i < storageBufferIds[x][z].length; i++)
+						{
+							drawBuffer(vbos[x][z][i], storageBufferIds[x][z][i], modelViewMatrix);
+						}
+					}
+				}
+			}
+		}
+		
+		
+		//=========//
+		// cleanup //
+		//=========//
+		
+		profiler.popPush("LOD cleanup");
+		
+		GL11.glPolygonMode(GL11.GL_FRONT_AND_BACK, GL11.GL_FILL);
+		GL11.glEnable(GL11.GL_TEXTURE_2D);
+		GL11.glDisable(LOD_GL_LIGHT_NUMBER);
+		GL11.glDisable(GL11.GL_BLEND);
+		// re-enable the lights Minecraft uses
+		GL11.glEnable(GL11.GL_LIGHT0);
+		GL11.glEnable(GL11.GL_LIGHT1);
+		RenderSystem.disableLighting();
+		
+		// reset the fog settings so the normal chunks
+		// will be drawn correctly
+		cleanupFog(fogSettings, defaultFogStartDist, defaultFogEndDist, defaultFogMode, defaultFogDistance);
+		
+		// reset the projection matrix so anything drawn after
+		// the LODs will use the correct projection matrix
+		gameRender.resetProjectionMatrix(mcProjectionMatrix);
+		
+		// clear the depth buffer so anything drawn is drawn
+		// over the LODs
+		GL11.glClear(GL11.GL_DEPTH_BUFFER_BIT);
+		
+		
+		// end of internal LOD profiling
+		profiler.pop();
+	}
+	
+	
+	/** This is where the actual drawing happens. */
+	private void drawBuffer(VertexBuffer vbo, int bufferStorageId, Matrix4f modelViewMatrix)
+	{
+		if (vbo == null)
+			return;
+		
+		GL15C.glBindBuffer(GL15.GL_ARRAY_BUFFER, bufferStorageId);
+		// 0L is the starting pointer
+		LodUtil.LOD_VERTEX_FORMAT.setupBufferState(0L);
+		
+		vbo.draw(modelViewMatrix, GL11.GL_QUADS);
+		
+		GL15C.glBindBuffer(GL15.GL_ARRAY_BUFFER, 0);
+		LodUtil.LOD_VERTEX_FORMAT.clearBufferState();
+	}
+	
+	
+	
+	
+	//=================//
+	// Setup Functions //
+	//=================//
+	
+	@SuppressWarnings("deprecation")
+	private void setupFog(FogDistance fogDistance, FogQuality fogQuality)
+	{
+		if (fogQuality == FogQuality.OFF)
+		{
+			FogRenderer.setupNoFog();
+			RenderSystem.disableFog();
+			return;
+		}
+		
+		if (fogDistance == FogDistance.NEAR_AND_FAR)
+		{
+			throw new IllegalArgumentException("setupFog doesn't accept the NEAR_AND_FAR fog distance.");
+		}
+		
+		// determine the fog distance mode to use
+		int glFogDistanceMode;
+		if (fogQuality == FogQuality.FANCY)
+		{
+			// fancy fog (fragment distance based fog)
+			glFogDistanceMode = NVFogDistance.GL_EYE_RADIAL_NV;
+		}
+		else
+		{
+			// fast fog (frustum distance based fog)
+			glFogDistanceMode = NVFogDistance.GL_EYE_PLANE_ABSOLUTE_NV;
+		}
+		
+		// the multipliers are percentages
+		// of the regular view distance.
+		if (fogDistance == FogDistance.FAR)
+		{
+			// the reason that I wrote fogEnd then fogStart backwards
+			// is because we are using fog backwards to how
+			// it is normally used, with it hiding near objects
+			// instead of far objects.
+			
+			if (fogQuality == FogQuality.FANCY)
+			{
+				// for more realistic fog when using FAR
+				if (LodConfig.CLIENT.graphics.fogQualityOption.fogDistance.get() == FogDistance.NEAR_AND_FAR)
+					RenderSystem.fogStart(farPlaneBlockDistance * 1.6f * 0.9f);
+				else
+					RenderSystem.fogStart(Math.min(vanillaBlockRenderedDistance * 1.5f, farPlaneBlockDistance * 0.9f * 1.6f));
+				RenderSystem.fogEnd(farPlaneBlockDistance * 1.6f);
+			}
+			else if (fogQuality == FogQuality.FAST)
+			{
+				// for the far fog of the normal chunks
+				// to start right where the LODs' end use:
+				// end = 0.8f, start = 1.5f
+				RenderSystem.fogStart(farPlaneBlockDistance * 0.75f);
+				RenderSystem.fogEnd(farPlaneBlockDistance * 1.0f);
+			}
+		}
+		else if (fogDistance == FogDistance.NEAR)
+		{
+			if (fogQuality == FogQuality.FANCY)
+			{
+				RenderSystem.fogEnd(vanillaBlockRenderedDistance * 1.41f);
+				RenderSystem.fogStart(vanillaBlockRenderedDistance * 1.6f);
+			}
+			else if (fogQuality == FogQuality.FAST)
+			{
+				RenderSystem.fogEnd(vanillaBlockRenderedDistance * 1.0f);
+				RenderSystem.fogStart(vanillaBlockRenderedDistance * 1.5f);
+			}
+		}
+		
+		GL11.glEnable(GL11.GL_FOG);
+		RenderSystem.enableFog();
+		RenderSystem.setupNvFogDistance();
+		RenderSystem.fogMode(GlStateManager.FogMode.LINEAR);
+		GL11.glFogi(NVFogDistance.GL_FOG_DISTANCE_MODE_NV, glFogDistanceMode);
+	}
+	
+	/**
+	 * Revert any changes that were made to the fog.
+	 */
+	private void cleanupFog(NearFarFogSettings fogSettings,
+			float defaultFogStartDist, float defaultFogEndDist,
+			int defaultFogMode, int defaultFogDistance)
+	{
+		RenderSystem.fogStart(defaultFogStartDist);
+		RenderSystem.fogEnd(defaultFogEndDist);
+		RenderSystem.fogMode(defaultFogMode);
+		GL11.glFogi(NVFogDistance.GL_FOG_DISTANCE_MODE_NV, defaultFogDistance);
+		
+		// disable fog if Minecraft wasn't rendering fog,
+		// but we were
+		if (!fogSettings.vanillaIsRenderingFog &&
+					(fogSettings.near.quality != FogQuality.OFF ||
+							 fogSettings.far.quality != FogQuality.OFF))
+		{
+			GL11.glDisable(GL11.GL_FOG);
+		}
+	}
+	
+	
+	/**
+	 * Translate the camera relative to the LodDimension's center,
+	 * this is done since all LOD buffers are created in world space
+	 * instead of object space.
+	 * (since AxisAlignedBoundingBoxes (LODs) use doubles and thus have a higher
+	 * accuracy vs the model view matrix, which only uses floats)
+	 */
+	private Matrix4f offsetTheModelViewMatrix(MatrixStack mcMatrixStack, float partialTicks)
+	{
+		// duplicate the last matrix
+		mcMatrixStack.pushPose();
+		
+		
+		// get all relevant camera info
+		ActiveRenderInfo renderInfo = mc.getGameRenderer().getMainCamera();
+		Vector3d projectedView = renderInfo.getPosition();
+		
+		// translate the camera relative to the regions' center
+		// (AxisAlignedBoundingBoxes (LODs) use doubles and thus have a higher
+		// accuracy vs the model view matrix, which only uses floats)
+		BlockPos bufferPos = vbosCenter.getWorldPosition();
+		Vector3d eyePos = mc.getPlayer().getEyePosition(partialTicks);
+		double xDiff = eyePos.x - bufferPos.getX();
+		double zDiff = eyePos.z - bufferPos.getZ();
+		mcMatrixStack.translate(-xDiff, -projectedView.y, -zDiff);
+		
+		
+		// get the modified model view matrix
+		Matrix4f lodModelViewMatrix = mcMatrixStack.last().pose();
+		// remove the lod ModelViewMatrix
+		mcMatrixStack.popPose();
+		
+		return lodModelViewMatrix;
+	}
+	
+	
+	/**
+	 * James added this to test if Vivecraft is not using
+	 * the MC FOV setting or if the problem is deeper
+	 */
+	public enum FovTest
+	{
+		LOD_USE_FOV(true, false),
+		MC_USE_FOV(false, true),
+		NEITHER(false, false),
+		BOTH(true, true);
+		
+		final boolean lodProjUseFov;
+		final boolean defaultMcProjUseFov;
+		
+		FovTest(boolean newLodProjUseFov, boolean newDefaultMcProjUseFov)
+		{
+			lodProjUseFov = newLodProjUseFov;
+			defaultMcProjUseFov = newDefaultMcProjUseFov;
+		}
+	}
+	
+	/**
+	 * create a new projection matrix and send it over to the GPU
+	 * @param currentProjectionMatrix this is Minecraft's current projection matrix
+	 * @param partialTicks how many ticks into the frame we are
+	 */
+	private void setupProjectionMatrix(Matrix4f currentProjectionMatrix, float partialTicks)
+	{
+		//Minimum radious of view in 2 render distance
+		int minDistance = 1;
+		// create the new projection matrix
+		Matrix4f lodPoj =
+				Matrix4f.perspective(
+						getFov(partialTicks, true),
+						(float) this.mc.getWindow().getScreenWidth() / (float) this.mc.getWindow().getScreenHeight(),
+						minDistance,
+						farPlaneBlockDistance * LodUtil.CHUNK_WIDTH / 2);
+		
+		// get Minecraft's un-edited projection matrix
+		// (this is before it is zoomed, distorted, etc.)
+		Matrix4f defaultMcProj = mc.getGameRenderer().getProjectionMatrix(mc.getGameRenderer().getMainCamera(), partialTicks, true);
+		// true here means use "use fov setting" (probably)
+		
+		
+		// this logic strips away the defaultMcProj matrix, so we
+		// can get the distortionMatrix, which represents all
+		// transformations, zooming, distortions, etc. done
+		// to Minecraft's Projection matrix
+		Matrix4f defaultMcProjInv = defaultMcProj.copy();
+		defaultMcProjInv.invert();
+		
+		Matrix4f distortionMatrix = defaultMcProjInv.copy();
+		distortionMatrix.multiply(currentProjectionMatrix);
+		
+		
+		// edit the lod projection to match Minecraft's
+		// (so the LODs line up with the real world)
+		lodPoj.multiply(distortionMatrix);
+		
+		// send the projection over to the GPU
+		gameRender.resetProjectionMatrix(lodPoj);
+	}
+	
+	
+	///** setup the lighting to be used for the LODs */
+	/*private void setupLighting(LodDimension lodDimension, float partialTicks)
+	{
+		// Determine if the player has night vision
+		boolean playerHasNightVision = false;
+		if (this.mc.getPlayer() != null)
+		{
+			Iterator<EffectInstance> iterator = this.mc.getPlayer().getActiveEffects().iterator();
+			while (iterator.hasNext())
+			{
+				EffectInstance instance = iterator.next();
+				if (instance.getEffect() == Effects.NIGHT_VISION)
+				{
+					playerHasNightVision = true;
+					break;
+				}
+			}
+		}
+
+		float sunBrightness = lodDimension.dimension.hasSkyLight() ? mc.getSkyDarken(partialTicks) : 0.2f;
+		sunBrightness = playerHasNightVision ? 1.0f : sunBrightness;
+		float gamma = (float) mc.getOptions().gamma - 0.0f;
+		float dayEffect = (sunBrightness - 0.2f) * 1.25f;
+		float lightStrength = (gamma * 0.34f - 0.01f) * (1.0f - dayEffect) + dayEffect - 0.20f; //gamma * 0.2980392157f + 0.1647058824f
+		float blueLightStrength = (gamma * 0.44f + 0.12f) * (1.0f - dayEffect) + dayEffect - 0.20f; //gamma * 0.4235294118f + 0.2784313725f
+
+		float[] lightAmbient = {lightStrength, lightStrength, blueLightStrength, 1.0f};
+
+
+		// can be used for debugging
+		//		if (partialTicks < 0.005)
+		//			ClientProxy.LOGGER.debug(lightStrength);
+
+		ByteBuffer temp = ByteBuffer.allocateDirect(16);
+		temp.order(ByteOrder.nativeOrder());
+		GL11.glLightfv(LOD_GL_LIGHT_NUMBER, GL11.GL_AMBIENT, (FloatBuffer) temp.asFloatBuffer().put(lightAmbient).flip());
+		GL11.glEnable(LOD_GL_LIGHT_NUMBER); // Enable the above lighting
+
+		RenderSystem.enableLighting();
+	}*/
+	
+	/** Create all buffers that will be used. */
+	public void setupBuffers(LodDimension lodDim)
+	{
+		lodBufferBuilder.setupBuffers(lodDim);
+	}
+	
+	
+	//======================//
+	// Other Misc Functions //
+	//======================//
+	
+	/**
+	 * If this is called then the next time "drawLODs" is called
+	 * the LODs will be regenerated; the same as if the player moved.
+	 */
+	public void regenerateLODsNextFrame()
+	{
+		fullRegen = true;
+	}
+	
+	
+	/**
+	 * Replace the current Vertex Buffers with the newly
+	 * created buffers from the lodBufferBuilder. <br><br>
+	 * <p>
+	 * For some reason this has to be called after the frame has been rendered,
+	 * otherwise visual stuttering/rubber banding may happen. I'm not sure why...
+	 */
+	private void swapBuffers()
+	{
+		// replace the drawable buffers with
+		// the newly created buffers from the lodBufferBuilder
+		VertexBuffersAndOffset result = lodBufferBuilder.getVertexBuffers();
+		vbos = result.vbos;
+		storageBufferIds = result.storageBufferIds;
+		vbosCenter = result.drawableCenterChunkPos;
+	}
+	
+	/**
+	 * Calls the BufferBuilder's destroyBuffers method.
+	 */
+	public void destroyBuffers()
+	{
+		lodBufferBuilder.destroyBuffers();
+	}
+	
+	
+	private double getFov(float partialTicks, boolean useFovSetting)
+	{
+		return mc.getGameRenderer().getFov(mc.getGameRenderer().getMainCamera(), partialTicks, useFovSetting);
+	}
+	
+	
+	/**
+	 * Return what fog settings should be used when rendering.
+	 */
+	private NearFarFogSettings determineFogSettings()
+	{
+		NearFarFogSettings fogSettings = new NearFarFogSettings();
+		
+		
+		FogQuality quality = ReflectionHandler.INSTANCE.getFogQuality();
+		FogDrawOverride override = LodConfig.CLIENT.graphics.fogQualityOption.fogDrawOverride.get();
+		
+		
+		fogSettings.vanillaIsRenderingFog = quality != FogQuality.OFF;
+		
+		
+		// use any fog overrides the user may have set
+		switch (override)
+		{
+		case FANCY:
+			quality = FogQuality.FANCY;
+			break;
+		
+		case NO_FOG:
+			quality = FogQuality.OFF;
+			break;
+		
+		case FAST:
+			quality = FogQuality.FAST;
+			break;
+		
+		case OPTIFINE_SETTING:
+			// don't override anything
+			break;
+		}
+		
+		
+		// only use fancy fog if the user's GPU can deliver
+		if (!GlProxy.getInstance().fancyFogAvailable && quality == FogQuality.FANCY)
+		{
+			quality = FogQuality.FAST;
+		}
+		
+		
+		// how different distances are drawn depends on the quality set
+		switch (quality)
+		{
+		case FANCY:
+			fogSettings.near.quality = FogQuality.FANCY;
+			fogSettings.far.quality = FogQuality.FANCY;
+			
+			switch (LodConfig.CLIENT.graphics.fogQualityOption.fogDistance.get())
+			{
+			case NEAR_AND_FAR:
+				fogSettings.near.distance = FogDistance.NEAR;
+				fogSettings.far.distance = FogDistance.FAR;
+				break;
+			
+			case NEAR:
+				fogSettings.near.distance = FogDistance.NEAR;
+				fogSettings.far.distance = FogDistance.NEAR;
+				break;
+			
+			case FAR:
+				fogSettings.near.distance = FogDistance.FAR;
+				fogSettings.far.distance = FogDistance.FAR;
+				break;
+			}
+			break;
+		
+		case FAST:
+			fogSettings.near.quality = FogQuality.FAST;
+			fogSettings.far.quality = FogQuality.FAST;
+			
+			// fast fog setting should only have one type of
+			// fog, since the LODs are separated into a near
+			// and far portion; and fast fog is rendered from the
+			// frustrum's perspective instead of the camera
+			switch (LodConfig.CLIENT.graphics.fogQualityOption.fogDistance.get())
+			{
+			case NEAR_AND_FAR:
+			case NEAR:
+				fogSettings.near.distance = FogDistance.NEAR;
+				fogSettings.far.distance = FogDistance.NEAR;
+				break;
+			
+			case FAR:
+				fogSettings.near.distance = FogDistance.FAR;
+				fogSettings.far.distance = FogDistance.FAR;
+				break;
+			}
+			break;
+		
+		case OFF:
+			fogSettings.near.quality = FogQuality.OFF;
+			fogSettings.far.quality = FogQuality.OFF;
+			break;
+		}
+		return fogSettings;
+	}
+	
+	
+	/** Determines if the LODs should have a fullRegen or partialRegen */
+	private void determineIfLodsShouldRegenerate(LodDimension lodDim, float partialTicks)
+	{
+		
+		
+		short chunkRenderDistance = (short) mc.getRenderDistance();
+		int vanillaRenderedChunksWidth = chunkRenderDistance * 2 + 2;
+		
+		//=============//
+		// full regens //
+		//=============//
+		
+		// check if the view distance changed
+		if (ClientProxy.previousLodRenderDistance != LodConfig.CLIENT.graphics.qualityOption.lodChunkRenderDistance.get()
+					|| chunkRenderDistance != prevRenderDistance
+					|| prevFogDistance != LodConfig.CLIENT.graphics.fogQualityOption.fogDistance.get())
+		{
+			
+			vanillaRenderedChunks = new boolean[vanillaRenderedChunksWidth][vanillaRenderedChunksWidth];
+			DetailDistanceUtil.updateSettings();
+			fullRegen = true;
+			previousPos = LevelPosUtil.createLevelPos((byte) 4, mc.getPlayer().xChunk, mc.getPlayer().zChunk);
+			prevFogDistance = LodConfig.CLIENT.graphics.fogQualityOption.fogDistance.get();
+			prevRenderDistance = chunkRenderDistance;
+		}
+		
+		// did the user change the debug setting?
+		if (LodConfig.CLIENT.advancedModOptions.debugging.debugMode.get() != previousDebugMode)
+		{
+			previousDebugMode = LodConfig.CLIENT.advancedModOptions.debugging.debugMode.get();
+			fullRegen = true;
+		}
+		
+		
+		long newTime = System.currentTimeMillis();
+		
+		// check if the player has moved
+		if (newTime - prevPlayerPosTime > LodConfig.CLIENT.advancedModOptions.buffers.rebuildTimes.get().playerMoveTimeout)
+		{
+			if (LevelPosUtil.getDetailLevel(previousPos) == 0
+						|| mc.getPlayer().xChunk != LevelPosUtil.getPosX(previousPos)
+						|| mc.getPlayer().zChunk != LevelPosUtil.getPosZ(previousPos))
+			{
+				vanillaRenderedChunks = new boolean[vanillaRenderedChunksWidth][vanillaRenderedChunksWidth];
+				fullRegen = true;
+				previousPos = LevelPosUtil.createLevelPos((byte) 4, mc.getPlayer().xChunk, mc.getPlayer().zChunk);
+			}
+			prevPlayerPosTime = newTime;
+		}
+		
+		
+		
+		// determine how far the lighting has to 
+		// change in order to rebuild the buffers
+		
+		// the max brightness is 1 and the minimum is 0.2
+		float skyBrightness = lodDim.dimension.hasSkyLight() ? mc.getSkyDarken(partialTicks) : 0.2f;
+		float minLightingDifference;
+		switch (LodConfig.CLIENT.advancedModOptions.buffers.rebuildTimes.get())
+		{
+		case FREQUENT:
+			minLightingDifference = 0.025f;
+			break;
+		case NORMAL:
+			minLightingDifference = 0.05f;
+			break;
+		default:
+		case RARE:
+			minLightingDifference = 0.1f;
+			break;
+		}
+		
+		// check if the lighting changed
+		if (Math.abs(skyBrightness - prevSkyBrightness) > minLightingDifference
+					// make sure the lighting gets to the max/minimum value
+					// (just in case the minLightingDifference is too large to notice the change)
+					|| (skyBrightness == 1.0f && prevSkyBrightness != 1.0f) // noon
+					|| (skyBrightness == 0.2f && prevSkyBrightness != 0.2f) // midnight
+					|| mc.getOptions().gamma != prevBrightness || lightMap == null)
+		{
+			fullRegen = true;
+			lightMap = mc.getCurrentLightMap();
+			prevBrightness = mc.getOptions().gamma;
+			prevSkyBrightness = skyBrightness;
+		}
+		
+		
+		//================//
+		// partial regens //
+		//================//
+		
+		
+		// check if the vanilla rendered chunks changed
+		if (newTime - prevVanillaChunkTime > LodConfig.CLIENT.advancedModOptions.buffers.rebuildTimes.get().renderedChunkTimeout)
+		{
+			if (vanillaRenderedChunksChanged)
+			{
+				partialRegen = true;
+				vanillaRenderedChunksChanged = false;
+				
+			}
+			prevVanillaChunkTime = newTime;
+		}
+		
+		
+		// check if there is any newly generated terrain to show
+		if (newTime - prevChunkTime > LodConfig.CLIENT.advancedModOptions.buffers.rebuildTimes.get().chunkChangeTimeout)
+		{
+			if (lodDim.regenDimensionBuffers)
+			{
+				partialRegen = true;
+				lodDim.regenDimensionBuffers = false;
+			}
+			prevChunkTime = newTime;
+		}
+		
+		
+		
+		//==============//
+		// LOD skipping //
+		//==============//
+		
+		// determine which LODs should not be rendered close to the player
+		HashSet<ChunkPos> chunkPosToSkip = LodUtil.getNearbyLodChunkPosToSkip(lodDim, mc.getPlayer().blockPosition());
+		int xIndex;
+		int zIndex;
+		for (ChunkPos pos : chunkPosToSkip)
+		{
+			xIndex = (pos.x - mc.getPlayer().xChunk) + (chunkRenderDistance + 1);
+			zIndex = (pos.z - mc.getPlayer().zChunk) + (chunkRenderDistance + 1);
+			
+			// sometimes we are given chunks that are outside the render distance,
+			// This prevents index out of bounds exceptions
+			if (xIndex >= 0 && zIndex >= 0
+						&& xIndex < vanillaRenderedChunks.length
+						&& zIndex < vanillaRenderedChunks.length)
+			{
+				if (!vanillaRenderedChunks[xIndex][zIndex])
+				{
+					vanillaRenderedChunks[xIndex][zIndex] = true;
+					vanillaRenderedChunksChanged = true;
+					lodDim.markRegionBufferToRegen(pos.getRegionX(), pos.getRegionZ());
+				}
+			}
+		}
+		
+		
+		// if the player is high enough, draw all LODs
+		if (chunkPosToSkip.isEmpty() && mc.getPlayer().position().y > 256)
+		{
+			vanillaRenderedChunks = new boolean[vanillaRenderedChunksWidth][vanillaRenderedChunksWidth];
+			vanillaRenderedChunksChanged = true;
+		}
+	}
+	
+}
@@ -1,29 +1,67 @@
+/*
+ *    This file is part of the Distant Horizon mod (formerly the LOD Mod),
+ *    licensed under the GNU GPL v3 License.
+ *
+ *    Copyright (C) 2020  James Seibel
+ *
+ *    This program is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, version 3.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.seibel.lod.render;

-import net.minecraft.client.Minecraft;
+import com.seibel.lod.util.LodUtil;
+import com.seibel.lod.wrappers.MinecraftWrapper;
+
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.util.math.ChunkPos;
+import net.minecraft.util.math.vector.Vector3d;

 /**
 * This holds miscellaneous helper code
 * to be used in the rendering process.
 * 
 * @author James Seibel
- * @version 2-13-2021
+ * @version 10-19-2021
 */
 public class RenderUtil
 {
+	private static final MinecraftWrapper mc = MinecraftWrapper.INSTANCE;
+	
+	
+	/**
+	 * Returns if the given ChunkPos is in the loaded area of the world.
+	 * @param center the center of the loaded world (probably the player's ChunkPos)
+	 */
+	public static boolean isChunkPosInLoadedArea(ChunkPos pos, ChunkPos center)
+	{
+		return (pos.x >= center.x - mc.getRenderDistance()
+				&& pos.x <= center.x + mc.getRenderDistance())
+				&&
+				(pos.z >= center.z - mc.getRenderDistance()
+						&& pos.z <= center.z + mc.getRenderDistance());
+	}
+	
 	/**
 	 * Returns if the given coordinate is in the loaded area of the world.
 	 * @param centerCoordinate the center of the loaded world
 	 */
-	public static boolean isCoordinateInLoadedArea(int i, int j, int centerCoordinate)
+	public static boolean isCoordinateInLoadedArea(int x, int z, int centerCoordinate)
 	{
-		Minecraft mc = Minecraft.getInstance();
-		
-		return (i >= centerCoordinate - mc.gameSettings.renderDistanceChunks 
-				&& i <= centerCoordinate + mc.gameSettings.renderDistanceChunks) 
-				&& 
-				(j >= centerCoordinate - mc.gameSettings.renderDistanceChunks 
-				&& j <= centerCoordinate + mc.gameSettings.renderDistanceChunks);
+		return (x >= centerCoordinate - mc.getRenderDistance()
+				&& x <= centerCoordinate + mc.getRenderDistance())
+				&&
+				(z >= centerCoordinate - mc.getRenderDistance()
+						&& z <= centerCoordinate + mc.getRenderDistance());
 	}
 	
 	
@@ -35,11 +73,51 @@ public class RenderUtil
 	{
 		int halfRadius = lodRadius / 2;
 		
-		return (i >= lodRadius - halfRadius 
-				&& i <= lodRadius + halfRadius) 
-				&& 
+		return (i >= lodRadius - halfRadius
+				&& i <= lodRadius + halfRadius)
+				&&
 				(j >= lodRadius - halfRadius
-				&& j <= lodRadius + halfRadius);
+						&& j <= lodRadius + halfRadius);
 	}
 	
+	
+	/**
+	 * Returns true if one of the region's 4 corners is in front
+	 * of the camera.
+	 */
+	public static boolean isRegionInViewFrustum(BlockPos playerBlockPos, Vector3d cameraDir, BlockPos vboCenterPos)
+	{
+		// convert the vbo position into a direction vector
+		// starting from the player's position
+		Vector3d vboVec = new Vector3d(vboCenterPos.getX(), 0, vboCenterPos.getZ());
+		Vector3d playerVec = new Vector3d(playerBlockPos.getX(), playerBlockPos.getY(), playerBlockPos.getZ());
+		Vector3d vboCenterVec = vboVec.subtract(playerVec);
+		
+		
+		int halfRegionWidth = LodUtil.REGION_WIDTH / 2;
+		
+		// calculate the 4 corners
+		Vector3d vboSeVec = new Vector3d(vboCenterVec.x + halfRegionWidth, vboCenterVec.y, vboCenterVec.z + halfRegionWidth);
+		Vector3d vboSwVec = new Vector3d(vboCenterVec.x - halfRegionWidth, vboCenterVec.y, vboCenterVec.z + halfRegionWidth);
+		Vector3d vboNwVec = new Vector3d(vboCenterVec.x - halfRegionWidth, vboCenterVec.y, vboCenterVec.z - halfRegionWidth);
+		Vector3d vboNeVec = new Vector3d(vboCenterVec.x + halfRegionWidth, vboCenterVec.y, vboCenterVec.z - halfRegionWidth);
+		
+		// if any corner is visible, this region should be rendered
+		return isNormalizedVectorInViewFrustum(vboSeVec, cameraDir) ||
+				isNormalizedVectorInViewFrustum(vboSwVec, cameraDir) ||
+				isNormalizedVectorInViewFrustum(vboNwVec, cameraDir) ||
+				isNormalizedVectorInViewFrustum(vboNeVec, cameraDir);
+	}
+	
+	/**
+	 * Currently takes the dot product of the two vectors,
+	 * but in the future could do more complicated frustum culling tests.
+	 */
+	private static boolean isNormalizedVectorInViewFrustum(Vector3d objectVector, Vector3d cameraDir)
+	{
+		// the -0.1 is to offer a slight buffer, so we are
+		// more likely to render LODs and thus, hopefully prevent
+		// flickering or odd disappearances
+		return objectVector.dot(cameraDir) > -0.1;
+	}
 }
@@ -0,0 +1,115 @@
+/*
+ *    This file is part of the Distant Horizon mod (formerly the LOD Mod),
+ *    licensed under the GNU GPL v3 License.
+ *
+ *    Copyright (C) 2020  James Seibel
+ *
+ *    This program is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, version 3.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.seibel.lod.util;
+
+import java.awt.Color;
+
+import net.minecraft.client.renderer.texture.NativeImage;
+
+/**
+ * 
+ * @author Cola
+ * @author Leonardo Amato
+ * @version ??
+ */
+public class ColorUtil
+{
+	public static int rgbToInt(int red, int green, int blue)
+	{
+		return (0xFF << 24) | (red << 16) | (green << 8) | blue;
+	}
+	
+	public static int rgbToInt(int alpha, int red, int green, int blue)
+	{
+		return (alpha << 24) | (red << 16) | (green << 8) | blue;
+	}
+	
+	public static int getAlpha(int color)
+	{
+		return (color >> 24) & 0xFF;
+	}
+	
+	public static int getRed(int color)
+	{
+		return (color >> 16) & 0xFF;
+	}
+	
+	public static int getGreen(int color)
+	{
+		return (color >> 8) & 0xFF;
+	}
+	
+	public static int getBlue(int color)
+	{
+		return color & 0xFF;
+	}
+	
+	public static int applyShade(int color, int shade)
+	{
+		if (shade < 0)
+			return (getAlpha(color) << 24) | (Math.max(getRed(color) + shade, 0) << 16) | (Math.max(getGreen(color) + shade, 0) << 8) | Math.max(getBlue(color) + shade, 0);
+		else
+			return (getAlpha(color) << 24) | (Math.min(getRed(color) + shade, 255) << 16) | (Math.min(getGreen(color) + shade, 255) << 8) | Math.min(getBlue(color) + shade, 255);
+	}
+	
+	public static int applyShade(int color, float shade)
+	{
+		if (shade < 1)
+			return (getAlpha(color) << 24) | ((int) Math.max(getRed(color) * shade, 0) << 16) | ((int) Math.max(getGreen(color) * shade, 0) << 8) | (int) Math.max(getBlue(color) * shade, 0);
+		else
+			return (getAlpha(color) << 24) | ((int) Math.min(getRed(color) * shade, 255) << 16) | ((int) Math.min(getGreen(color) * shade, 255) << 8) | (int) Math.min(getBlue(color) * shade, 255);
+	}
+	
+	/** This method apply the lightmap to the color to use */
+	public static int applyLightValue(int color, int skyLight, int blockLight, NativeImage lightMap)
+	{
+		int lightColor = lightMap.getPixelRGBA(blockLight, skyLight);
+		int red = ColorUtil.getBlue(lightColor);
+		int green = ColorUtil.getGreen(lightColor);
+		int blue = ColorUtil.getRed(lightColor);
+		
+		return ColorUtil.multiplyRGBcolors(color, ColorUtil.rgbToInt(red, green, blue));
+	}
+	
+	/** Edit the given color as an HSV (Hue Saturation Value) color */
+	public static int applySaturationAndBrightnessMultipliers(int color, float saturationMultiplier, float brightnessMultiplier)
+	{
+		float[] hsv = Color.RGBtoHSB(getRed(color), getGreen(color), getBlue(color), null);
+		return Color.getHSBColor(
+				hsv[0], // hue
+				LodUtil.clamp(0.0f, hsv[1] * saturationMultiplier, 1.0f),
+				LodUtil.clamp(0.0f, hsv[2] * brightnessMultiplier, 1.0f)).getRGB();
+	}
+	
+	/** Multiply 2 RGB colors */
+	public static int multiplyRGBcolors(int color1, int color2)
+	{
+		return ((getAlpha(color1) * getAlpha(color2) / 255) << 24) | ((getRed(color1) * getRed(color2) / 255) << 16) | ((getGreen(color1) * getGreen(color2) / 255) << 8) | (getBlue(color1) * getBlue(color2) / 255);
+	}
+	
+	@SuppressWarnings("unused")
+	public static String toString(int color)
+	{
+		return Integer.toHexString(getAlpha(color)) + " " +
+				Integer.toHexString(getRed(color)) + " " +
+				Integer.toHexString(getGreen(color)) + " " +
+				Integer.toHexString(getBlue(color));
+	}
+}
@@ -0,0 +1,554 @@
+/*
+ *    This file is part of the Distant Horizon mod (formerly the LOD Mod),
+ *    licensed under the GNU GPL v3 License.
+ *
+ *    Copyright (C) 2020  James Seibel
+ *
+ *    This program is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, version 3.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.seibel.lod.util;
+
+import static com.seibel.lod.builders.bufferBuilding.LodBufferBuilder.skyLightPlayer;
+
+import com.seibel.lod.enums.DistanceGenerationMode;
+
+import net.minecraft.client.renderer.texture.NativeImage;
+
+/**
+ * 
+ * @author Leonardo Amato
+ * @version ??
+ */
+public class DataPointUtil
+{
+	/*
+	|a  |a  |a  |a  |r  |r  |r  |r   |
+
+	|r  |r  |r  |r  |g  |g  |g  |g  |
+
+	|g  |g  |g  |g  |b  |b  |b  |b  |
+
+	|b  |b  |b  |b  |h  |h  |h  |h  |
+
+	|h  |h  |h  |h  |h  |h  |d  |d  |
+
+	|d  |d  |d  |d  |d  |d  |d  |d  |
+
+	|bl |bl |bl |bl |sl |sl |sl |sl |
+
+	|l  |l  |f  |g  |g  |g  |v  |e  |
+	
+	
+	 */
+	
+	// Reminder: bytes have range of [-128, 127].
+	// When converting to or from an int a 128 should be added or removed.
+	// If there is a bug with color then it's probably caused by this.
+	
+	//To be used in the future for negative value
+	//public final static int MIN_DEPTH = -64;
+	//public final static int MIN_HEIGHT = -64;
+	public final static int EMPTY_DATA = 0;
+	public static int worldHeight = 256;
+	
+	public final static int ALPHA_DOWNSIZE_SHIFT = 4;
+	
+	//public final static int BLUE_COLOR_SHIFT = 0;
+	//public final static int GREEN_COLOR_SHIFT = 8;
+	//public final static int RED_COLOR_SHIFT = 16;
+	//public final static int ALPHA_COLOR_SHIFT = 24;
+	
+	public final static int BLUE_SHIFT = 36;
+	public final static int GREEN_SHIFT = BLUE_SHIFT + 8;
+	public final static int RED_SHIFT = BLUE_SHIFT + 16;
+	public final static int ALPHA_SHIFT = BLUE_SHIFT + 24;
+	
+	public final static int COLOR_SHIFT = 36;
+	
+	public final static int HEIGHT_SHIFT = 26;
+	public final static int DEPTH_SHIFT = 16;
+	public final static int BLOCK_LIGHT_SHIFT = 12;
+	public final static int SKY_LIGHT_SHIFT = 8;
+	//public final static int LIGHTS_SHIFT = SKY_LIGHT_SHIFT;
+	//public final static int VERTICAL_INDEX_SHIFT = 6;
+	public final static int FLAG_SHIFT = 5;
+	public final static int GEN_TYPE_SHIFT = 2;
+	public final static int VOID_SHIFT = 1;
+	public final static int EXISTENCE_SHIFT = 0;
+	
+	public final static long ALPHA_MASK = 0b1111;
+	public final static long RED_MASK = 0b1111_1111;
+	public final static long GREEN_MASK = 0b1111_1111;
+	public final static long BLUE_MASK = 0b1111_1111;
+	public final static long COLOR_MASK = 0b11111111_11111111_11111111;
+	public final static long HEIGHT_MASK = 0b11_1111_1111;
+	public final static long DEPTH_MASK = 0b11_1111_1111;
+	//public final static long LIGHTS_MASK = 0b1111_1111;
+	public final static long BLOCK_LIGHT_MASK = 0b1111;
+	public final static long SKY_LIGHT_MASK = 0b1111;
+	//public final static long VERTICAL_INDEX_MASK = 0b11;
+	public final static long FLAG_MASK = 0b1;
+	public final static long GEN_TYPE_MASK = 0b111;
+	public final static long VOID_MASK = 1;
+	public final static long EXISTENCE_MASK = 1;
+	
+	
+	public static long createVoidDataPoint(int generationMode)
+	{
+		long dataPoint = 0;
+		dataPoint += (generationMode & GEN_TYPE_MASK) << GEN_TYPE_SHIFT;
+		dataPoint += VOID_MASK << VOID_SHIFT;
+		dataPoint += EXISTENCE_MASK << EXISTENCE_SHIFT;
+		return dataPoint;
+	}
+	
+	public static long createDataPoint(int height, int depth, int color, int lightSky, int lightBlock, int generationMode, boolean flag)
+	{
+		return createDataPoint(
+				ColorUtil.getAlpha(color),
+				ColorUtil.getRed(color),
+				ColorUtil.getGreen(color),
+				ColorUtil.getBlue(color),
+				height, depth, lightSky, lightBlock, generationMode, flag);
+	}
+	
+	public static long createDataPoint(int alpha, int red, int green, int blue, int height, int depth, int lightSky, int lightBlock, int generationMode, boolean flag)
+	{
+		long dataPoint = 0;
+		dataPoint += (long) (alpha >>> ALPHA_DOWNSIZE_SHIFT) << ALPHA_SHIFT;
+		dataPoint += (red & RED_MASK) << RED_SHIFT;
+		dataPoint += (green & GREEN_MASK) << GREEN_SHIFT;
+		dataPoint += (blue & BLUE_MASK) << BLUE_SHIFT;
+		dataPoint += (height & HEIGHT_MASK) << HEIGHT_SHIFT;
+		dataPoint += (depth & DEPTH_MASK) << DEPTH_SHIFT;
+		dataPoint += (lightBlock & BLOCK_LIGHT_MASK) << BLOCK_LIGHT_SHIFT;
+		dataPoint += (lightSky & SKY_LIGHT_MASK) << SKY_LIGHT_SHIFT;
+		dataPoint += (generationMode & GEN_TYPE_MASK) << GEN_TYPE_SHIFT;
+		if (flag) dataPoint += FLAG_MASK << FLAG_SHIFT;
+		dataPoint += EXISTENCE_MASK << EXISTENCE_SHIFT;
+		
+		return dataPoint;
+	}
+	
+	public static short getHeight(long dataPoint)
+	{
+		return (short) ((dataPoint >>> HEIGHT_SHIFT) & HEIGHT_MASK);
+	}
+	
+	public static short getDepth(long dataPoint)
+	{
+		return (short) ((dataPoint >>> DEPTH_SHIFT) & DEPTH_MASK);
+	}
+	
+	public static short getAlpha(long dataPoint)
+	{
+		return (short) ((((dataPoint >>> ALPHA_SHIFT) & ALPHA_MASK) << ALPHA_DOWNSIZE_SHIFT) | 0b1111);
+	}
+	
+	public static short getRed(long dataPoint)
+	{
+		return (short) ((dataPoint >>> RED_SHIFT) & RED_MASK);
+	}
+	
+	public static short getGreen(long dataPoint)
+	{
+		return (short) ((dataPoint >>> GREEN_SHIFT) & GREEN_MASK);
+	}
+	
+	public static short getBlue(long dataPoint)
+	{
+		return (short) ((dataPoint >>> BLUE_SHIFT) & BLUE_MASK);
+	}
+	
+	public static int getLightSky(long dataPoint)
+	{
+		return (int) ((dataPoint >>> SKY_LIGHT_SHIFT) & SKY_LIGHT_MASK);
+	}
+	
+	public static int getLightSkyAlt(long dataPoint)
+	{
+		if (skyLightPlayer == 0 && ((dataPoint >>> FLAG_SHIFT) & FLAG_MASK) == 1)
+			return 0;
+		else
+			return (int) ((dataPoint >>> SKY_LIGHT_SHIFT) & SKY_LIGHT_MASK);
+	}
+	
+	public static int getLightBlock(long dataPoint)
+	{
+		return (int) ((dataPoint >>> BLOCK_LIGHT_SHIFT) & BLOCK_LIGHT_MASK);
+	}
+	
+	public static boolean getFlag(long dataPoint)
+	{
+		return ((dataPoint >>> FLAG_SHIFT) & FLAG_MASK) == 1;
+	}
+	
+	public static byte getGenerationMode(long dataPoint)
+	{
+		return (byte) ((dataPoint >>> GEN_TYPE_SHIFT) & GEN_TYPE_MASK);
+	}
+	
+	
+	public static boolean isVoid(long dataPoint)
+	{
+		return (((dataPoint >>> VOID_SHIFT) & VOID_MASK) == 1);
+	}
+	
+	public static boolean doesItExist(long dataPoint)
+	{
+		return (((dataPoint >>> EXISTENCE_SHIFT) & EXISTENCE_MASK) == 1);
+	}
+	
+	public static int getColor(long dataPoint)
+	{
+		return (int) (((dataPoint >>> COLOR_SHIFT) & COLOR_MASK) | (/*((dataPoint >>> (ALPHA_SHIFT - ALPHA_DOWNSIZE_SHIFT)) | 0b1111)*/255 << 24));
+	}
+	
+	/** This method apply the lightmap to the color to use */
+	public static int getLightColor(long dataPoint, NativeImage lightMap)
+	{
+		int lightBlock = getLightBlock(dataPoint);
+		int lightSky = getLightSky(dataPoint);
+		int color = lightMap.getPixelRGBA(lightBlock, lightSky);
+		int red = ColorUtil.getBlue(color);
+		int green = ColorUtil.getGreen(color);
+		int blue = ColorUtil.getRed(color);
+		
+		return ColorUtil.multiplyRGBcolors(getColor(dataPoint), ColorUtil.rgbToInt(red, green, blue));
+	}
+	
+	/** This is used to convert a dataPoint to string (useful for the print function) */
+	@SuppressWarnings("unused")
+	public static String toString(long dataPoint)
+	{
+		return getHeight(dataPoint) + " " +
+				getDepth(dataPoint) + " " +
+				getAlpha(dataPoint) + " " +
+				getRed(dataPoint) + " " +
+				getBlue(dataPoint) + " " +
+				getGreen(dataPoint) + " " +
+				getLightBlock(dataPoint) + " " +
+				getLightSky(dataPoint) + " " +
+				getGenerationMode(dataPoint) + " " +
+				isVoid(dataPoint) + " " +
+				doesItExist(dataPoint) + '\n';
+	}
+	
+	public static void shrinkArray(short[] array, int packetSize, int start, int length, int arraySize)
+	{
+		start *= packetSize;
+		length *= packetSize;
+		arraySize *= packetSize;
+		for (int i = 0; i < arraySize - start; i++)
+		{
+			array[start + i] = array[start + length + i];
+			//remove comment to not leave garbage at the end
+			//array[start + packetSize + i] = 0;
+		}
+	}
+	
+	public static void extendArray(short[] array, int packetSize, int start, int length, int arraySize)
+	{
+		start *= packetSize;
+		length *= packetSize;
+		arraySize *= packetSize;
+		for (int i = arraySize - start - 1; i >= 0; i--)
+		{
+			array[start + length + i] = array[start + i];
+			array[start + i] = 0;
+		}
+	}
+	
+	/**
+	 * This method merge column of multiple data together
+	 * @param dataToMerge one or more columns of data
+	 * @param inputVerticalData vertical size of an input data
+	 * @param maxVerticalData max vertical size of the merged data
+	 * @return one column of correctly parsed data
+	 */
+	public static long[] mergeMultiData(long[] dataToMerge, int inputVerticalData, int maxVerticalData)
+	{
+		int size = dataToMerge.length / inputVerticalData;
+		
+		// We initialize the arrays that are going to be used
+		short[] heightAndDepth = ThreadMapUtil.getHeightAndDepth((worldHeight + 1) * 2);
+		long[] dataPoint = ThreadMapUtil.getVerticalDataArray(DetailDistanceUtil.getMaxVerticalData(0));
+		
+		
+		int genMode = DistanceGenerationMode.SERVER.complexity;
+		boolean allEmpty = true;
+		boolean allVoid = true;
+		boolean allDefault;
+		long singleData;
+		
+		
+		short depth;
+		short height;
+		int count = 0;
+		int i;
+		int ii;
+		int dataIndex;
+		//We collect the indexes of the data, ordered by the depth
+		for (int index = 0; index < size; index++)
+		{
+			for (dataIndex = 0; dataIndex < inputVerticalData; dataIndex++)
+			{
+				singleData = dataToMerge[index * inputVerticalData + dataIndex];
+				if (doesItExist(singleData))
+				{
+					genMode = Math.min(genMode, getGenerationMode(singleData));
+					allEmpty = false;
+					if (!isVoid(singleData))
+					{
+						allVoid = false;
+						depth = getDepth(singleData);
+						height = getHeight(singleData);
+						
+						int botPos = -1;
+						int topPos = -1;
+						//values fall in between and possibly require extension of array
+						boolean botExtend = false;
+						boolean topExtend = false;
+						for (i = 0; i < count; i++)
+						{
+							if (depth <= heightAndDepth[i * 2] && depth >= heightAndDepth[i * 2 + 1])
+							{
+								botPos = i;
+								break;
+							}
+							else if (depth < heightAndDepth[i * 2 + 1] && ((i + 1 < count && depth > heightAndDepth[(i + 1) * 2]) || i + 1 == count))
+							{
+								botPos = i;
+								botExtend = true;
+								break;
+							}
+						}
+						for (i = 0; i < count; i++)
+						{
+							if (height <= heightAndDepth[i * 2] && height >= heightAndDepth[i * 2 + 1])
+							{
+								topPos = i;
+								break;
+							}
+							else if (height < heightAndDepth[i * 2 + 1] && ((i + 1 < count && height > heightAndDepth[(i + 1) * 2]) || i + 1 == count))
+							{
+								topPos = i;
+								topExtend = true;
+								break;
+							}
+						}
+						if (topPos == -1)
+						{
+							if (botPos == -1)
+							{
+								//whole block falls above
+								extendArray(heightAndDepth, 2, 0, 1, count);
+								heightAndDepth[0] = height;
+								heightAndDepth[1] = depth;
+								count++;
+							}
+							else if (!botExtend)
+							{
+								//only top falls above extending it there, while bottom is inside existing
+								shrinkArray(heightAndDepth, 2, 0, botPos, count);
+								heightAndDepth[0] = height;
+								count -= botPos;
+							}
+							else
+							{
+								//top falls between some blocks, extending those as well
+								shrinkArray(heightAndDepth, 2, 0, botPos, count);
+								heightAndDepth[0] = height;
+								heightAndDepth[1] = depth;
+								count -= botPos;
+							}
+						}
+						else if (!topExtend)
+						{
+							if (!botExtend)
+								//both top and bottom are within some exiting blocks, possibly merging them
+								heightAndDepth[topPos * 2 + 1] = heightAndDepth[botPos * 2 + 1];
+							else
+								//top falls between some blocks, extending it there
+								heightAndDepth[topPos * 2 + 1] = depth;
+							shrinkArray(heightAndDepth, 2, topPos + 1, botPos - topPos, count);
+							count -= botPos - topPos;
+						}
+						else
+						{
+							if (!botExtend)
+							{
+								//only top is within some exiting block, extending it
+								topPos++; //to make it easier
+								heightAndDepth[topPos * 2] = height;
+								heightAndDepth[topPos * 2 + 1] = heightAndDepth[botPos * 2 + 1];
+								shrinkArray(heightAndDepth, 2, topPos + 1, botPos - topPos, count);
+								count -= botPos - topPos;
+							}
+							else
+							{
+								//both top and bottom are outside existing blocks
+								shrinkArray(heightAndDepth, 2, topPos + 1, botPos - topPos, count);
+								count -= botPos - topPos;
+								extendArray(heightAndDepth, 2, topPos + 1, 1, count);
+								count++;
+								heightAndDepth[topPos * 2 + 2] = height;
+								heightAndDepth[topPos * 2 + 3] = depth;
+							}
+						}
+					}
+				}
+				else
+					break;
+			}
+		}
+		
+		//We check if there is any data that's not empty or void
+		if (allEmpty)
+			return dataPoint;
+		if (allVoid)
+		{
+			dataPoint[0] = createVoidDataPoint(genMode);
+			return dataPoint;
+		}
+		
+		
+		
+		//we cut the 1 block gaps
+		/*int j;
+		for (i = 0; i < count - 1; i++)
+		{
+			if (heightAndDepth[i * 2 + 1] - heightAndDepth[(i + 1) * 2] == 1)
+			{
+				heightAndDepth[i * 2 + 1] = heightAndDepth[(i + 1) * 2 + 1];
+				for (j = i + 1; j < count - 1; j++)
+				{
+					heightAndDepth[j * 2] = heightAndDepth[(j + 1) * 2];
+					heightAndDepth[j * 2 + 1] = heightAndDepth[(j + 1) * 2 + 1];
+				}
+				count--;
+				i--;
+			}
+		}*/
+		
+		//we limit the vertical portion to maxVerticalData
+		int j = 0;
+		while (count > maxVerticalData)
+		{
+			ii = worldHeight;
+			for (i = 0; i < count - 1; i++)
+			{
+				if (heightAndDepth[i * 2 + 1] - heightAndDepth[(i + 1) * 2] < ii)
+				{
+					ii = heightAndDepth[i * 2 + 1] - heightAndDepth[(i + 1) * 2];
+					j = i;
+				}
+			}
+			heightAndDepth[j * 2 + 1] = heightAndDepth[(j + 1) * 2 + 1];
+			for (i = j + 1; i < count - 1; i++)
+			{
+				heightAndDepth[i * 2] = heightAndDepth[(i + 1) * 2];
+				heightAndDepth[i * 2 + 1] = heightAndDepth[(i + 1) * 2 + 1];
+			}
+			//System.arraycopy(heightAndDepth, j + 1, heightAndDepth, j, count - j - 1);
+			count--;
+		}
+		//As standard the vertical lods are ordered from top to bottom
+		for (j = count - 1; j >= 0; j--)
+		{
+			height = heightAndDepth[j * 2];
+			depth = heightAndDepth[j * 2 + 1];
+			
+			if ((depth == 0 && height == 0) || j >= heightAndDepth.length / 2)
+				break;
+			
+			int numberOfChildren = 0;
+			int tempAlpha = 0;
+			int tempRed = 0;
+			int tempGreen = 0;
+			int tempBlue = 0;
+			int tempLightBlock = 0;
+			int tempLightSky = 0;
+			byte tempGenMode = DistanceGenerationMode.SERVER.complexity;
+			allEmpty = true;
+			allVoid = true;
+			allDefault = true;
+			long data = 0;
+			
+			for (int index = 0; index < size; index++)
+			{
+				for (dataIndex = 0; dataIndex < inputVerticalData; dataIndex++)
+				{
+					singleData = dataToMerge[index * inputVerticalData + dataIndex];
+					if (doesItExist(singleData) && !isVoid(singleData))
+					{
+						
+						if ((depth <= getDepth(singleData) && getDepth(singleData) <= height)
+								|| (depth <= getHeight(singleData) && getHeight(singleData) <= height))
+						{
+							if (getHeight(singleData) > getHeight(data))
+								data = singleData;
+						}
+					}
+					else
+						break;
+				}
+				if (!doesItExist(data))
+				{
+					singleData = dataToMerge[index * inputVerticalData];
+					data = createVoidDataPoint(getGenerationMode(singleData));
+				}
+				
+				if (doesItExist(data))
+				{
+					allEmpty = false;
+					if (!isVoid(data))
+					{
+						numberOfChildren++;
+						allVoid = false;
+						tempAlpha += getAlpha(data);
+						tempRed += getRed(data);
+						tempGreen += getGreen(data);
+						tempBlue += getBlue(data);
+						tempLightBlock += getLightBlock(data);
+						tempLightSky += getLightSky(data);
+						if (!getFlag(data)) allDefault = false;
+					}
+					tempGenMode = (byte) Math.min(tempGenMode, getGenerationMode(data));
+				}
+				else
+					tempGenMode = (byte) Math.min(tempGenMode, DistanceGenerationMode.NONE.complexity);
+			}
+			
+			if (allEmpty)
+				//no child has been initialized
+				dataPoint[j] = EMPTY_DATA;
+			else if (allVoid)
+				//all the children are void
+				dataPoint[j] = createVoidDataPoint(tempGenMode);
+			else
+			{
+				//we have at least 1 child
+				tempAlpha = tempAlpha / numberOfChildren;
+				tempRed = tempRed / numberOfChildren;
+				tempGreen = tempGreen / numberOfChildren;
+				tempBlue = tempBlue / numberOfChildren;
+				tempLightBlock = tempLightBlock / numberOfChildren;
+				tempLightSky = tempLightSky / numberOfChildren;
+				dataPoint[j] = createDataPoint(tempAlpha, tempRed, tempGreen, tempBlue, height, depth, tempLightSky, tempLightBlock, tempGenMode, allDefault);
+			}
+		}
+		return dataPoint;
+	}
+}
@@ -0,0 +1,190 @@
+/*
+ *    This file is part of the Distant Horizon mod (formerly the LOD Mod),
+ *    licensed under the GNU GPL v3 License.
+ *
+ *    Copyright (C) 2020  James Seibel
+ *
+ *    This program is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, version 3.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.seibel.lod.util;
+
+import com.seibel.lod.config.LodConfig;
+import com.seibel.lod.enums.DistanceGenerationMode;
+import com.seibel.lod.enums.HorizontalQuality;
+import com.seibel.lod.enums.HorizontalResolution;
+import com.seibel.lod.wrappers.MinecraftWrapper;
+
+/**
+ * 
+ * @author Leonardo Amato
+ * @version ??
+ */
+public class DetailDistanceUtil
+{
+	private static final double genMultiplier = 1.0;
+	private static final double treeGenMultiplier = 1.0;
+	private static final double treeCutMultiplier = 1.0;
+	private static int minGenDetail = LodConfig.CLIENT.graphics.qualityOption.drawResolution.get().detailLevel;
+	private static int minDrawDetail = Math.max(LodConfig.CLIENT.graphics.qualityOption.drawResolution.get().detailLevel, LodConfig.CLIENT.graphics.qualityOption.drawResolution.get().detailLevel);
+	private static final int maxDetail = LodUtil.REGION_DETAIL_LEVEL + 1;
+	private static final int minDistance = 0;
+	private static int minDetailDistance = (int) (MinecraftWrapper.INSTANCE.getRenderDistance()*16 * 1.42f);
+	private static int maxDistance = LodConfig.CLIENT.graphics.qualityOption.lodChunkRenderDistance.get() * 16 * 2;
+	
+	
+	private static final HorizontalResolution[] lodGenDetails = {
+			HorizontalResolution.BLOCK,
+			HorizontalResolution.TWO_BLOCKS,
+			HorizontalResolution.FOUR_BLOCKS,
+			HorizontalResolution.HALF_CHUNK,
+			HorizontalResolution.CHUNK,
+			HorizontalResolution.CHUNK,
+			HorizontalResolution.CHUNK,
+			HorizontalResolution.CHUNK,
+			HorizontalResolution.CHUNK,
+			HorizontalResolution.CHUNK,
+			HorizontalResolution.CHUNK };
+	
+	
+	
+	public static void updateSettings()
+	{
+		minDetailDistance = (int) (MinecraftWrapper.INSTANCE.getRenderDistance()*16 * 1.42f);
+		minGenDetail = LodConfig.CLIENT.graphics.qualityOption.drawResolution.get().detailLevel;
+		minDrawDetail = Math.max(LodConfig.CLIENT.graphics.qualityOption.drawResolution.get().detailLevel, LodConfig.CLIENT.graphics.qualityOption.drawResolution.get().detailLevel);
+		maxDistance = LodConfig.CLIENT.graphics.qualityOption.lodChunkRenderDistance.get() * 16 * 8;
+	}
+	
+	public static int baseDistanceFunction(int detail)
+	{
+		if (detail <= minGenDetail)
+			return minDistance;
+		if (detail >= maxDetail)
+			return maxDistance;
+		
+		int distanceUnit = LodConfig.CLIENT.graphics.qualityOption.horizontalScale.get().distanceUnit;
+		if (LodConfig.CLIENT.graphics.qualityOption.horizontalQuality.get() == HorizontalQuality.LOWEST)
+			return (detail * distanceUnit);
+		else
+		{
+			double base = LodConfig.CLIENT.graphics.qualityOption.horizontalQuality.get().quadraticBase;
+			return (int) (Math.pow(base, detail) * distanceUnit);
+		}
+	}
+	
+	public static int getDrawDistanceFromDetail(int detail)
+	{
+		return baseDistanceFunction(detail);
+	}
+	
+	public static byte baseInverseFunction(int distance, int minDetail, boolean useRenderMinDistance)
+	{
+		int detail;
+		if (distance == 0)
+			return (byte) minDetail;
+		if (distance < minDetailDistance && useRenderMinDistance)
+			return (byte) minDetail;
+		int distanceUnit = LodConfig.CLIENT.graphics.qualityOption.horizontalScale.get().distanceUnit;
+		if (LodConfig.CLIENT.graphics.qualityOption.horizontalQuality.get() == HorizontalQuality.LOWEST)
+			detail = (byte) Math.floorDiv(distance, distanceUnit);
+		else
+		{
+			double base = LodConfig.CLIENT.graphics.qualityOption.horizontalQuality.get().quadraticBase;
+			double logBase = Math.log(base);
+			detail = (byte) (Math.log(Math.floorDiv(distance, distanceUnit)) / logBase);
+		}
+		return (byte) LodUtil.clamp(minDetail, detail, maxDetail - 1);
+	}
+	
+	public static byte getDrawDetailFromDistance(int distance)
+	{
+		return baseInverseFunction(distance, minDrawDetail, false);
+	}
+	
+	public static byte getGenerationDetailFromDistance(int distance)
+	{
+		return baseInverseFunction((int) (distance * genMultiplier), minGenDetail, true);
+	}
+	
+	public static byte getTreeCutDetailFromDistance(int distance)
+	{
+		
+		return baseInverseFunction((int) (distance * treeCutMultiplier), minGenDetail, true);
+	}
+	
+	
+	public static byte getTreeGenDetailFromDistance(int distance)
+	{
+		
+		return baseInverseFunction((int) (distance * treeGenMultiplier), minGenDetail, true);
+	}
+	
+	public static DistanceGenerationMode getDistanceGenerationMode(int detail)
+	{
+		return LodConfig.CLIENT.worldGenerator.distanceGenerationMode.get();
+	}
+	
+	public static byte getLodDrawDetail(int detail)
+	{
+		if (detail < minDrawDetail)
+		{
+			if (LodConfig.CLIENT.graphics.advancedGraphicsOption.alwaysDrawAtMaxQuality.get())
+				return getLodGenDetail(minDrawDetail).detailLevel;
+			else
+				return (byte) minDrawDetail;
+		}
+		else
+		{
+			if (LodConfig.CLIENT.graphics.advancedGraphicsOption.alwaysDrawAtMaxQuality.get())
+				return getLodGenDetail(detail).detailLevel;
+			else
+				return (byte) detail;
+		}
+	}
+	
+	public static HorizontalResolution getLodGenDetail(int detail)
+	{
+		if (detail < minGenDetail)
+		{
+			return lodGenDetails[minGenDetail];
+		}
+		else
+		{
+			return lodGenDetails[detail];
+		}
+	}
+	
+	
+	public static byte getCutLodDetail(int detail)
+	{
+		if (detail < minGenDetail)
+		{
+			return lodGenDetails[minGenDetail].detailLevel;
+		}
+		else if (detail == maxDetail)
+		{
+			return LodUtil.REGION_DETAIL_LEVEL;
+		}
+		else
+		{
+			return lodGenDetails[detail].detailLevel;
+		}
+	}
+	
+	public static int getMaxVerticalData(int detail)
+	{
+		return LodConfig.CLIENT.graphics.qualityOption.verticalQuality.get().maxVerticalData[LodUtil.clamp(minGenDetail, detail, LodUtil.REGION_DETAIL_LEVEL)];
+	}
+	
+}
@@ -0,0 +1,258 @@
+/*
+ *    This file is part of the Distant Horizon mod (formerly the LOD Mod),
+ *    licensed under the GNU GPL v3 License.
+ *
+ *    Copyright (C) 2020  James Seibel
+ *
+ *    This program is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, version 3.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.seibel.lod.util;
+
+/**
+ * 
+ * @author Leonardo Amato
+ * @version ??
+ */
+public class LevelPosUtil
+{
+	public static int[] convert(int[] levelPos, byte newDetailLevel)
+	{
+		return convert(getDetailLevel(levelPos), getPosX(levelPos), getPosZ(levelPos), newDetailLevel);
+	}
+	
+	public static int[] convert(byte detailLevel, int posX, int posZ, byte newDetailLevel)
+	{
+		int width;
+		if (newDetailLevel >= detailLevel)
+		{
+			width = 1 << (newDetailLevel - detailLevel);
+			return createLevelPos(
+					newDetailLevel,
+					Math.floorDiv(posX, width),
+					Math.floorDiv(posZ, width));
+		}
+		else
+		{
+			width = 1 << (detailLevel - newDetailLevel);
+			return createLevelPos(
+					newDetailLevel,
+					posX * width,
+					posZ * width);
+		}
+	}
+	
+	public static int[] createLevelPos(byte detailLevel, int posX, int posZ)
+	{
+		return new int[] { detailLevel, posX, posZ };
+	}
+	
+	public static int convert(byte detailLevel, int pos, byte newDetailLevel)
+	{
+		int width;
+		if (newDetailLevel >= detailLevel)
+		{
+			width = 1 << (newDetailLevel - detailLevel);
+			return Math.floorDiv(pos, width);
+		}
+		else
+		{
+			width = 1 << (detailLevel - newDetailLevel);
+			return pos * width;
+		}
+	}
+	
+	public static int getRegion(byte detailLevel, int pos)
+	{
+		return Math.floorDiv(pos, 1 << (LodUtil.REGION_DETAIL_LEVEL - detailLevel));
+	}
+	
+	public static int getRegionModule(byte detailLevel, int pos)
+	{
+		return Math.floorMod(pos, 1 << (LodUtil.REGION_DETAIL_LEVEL - detailLevel));
+	}
+	
+	public static byte getDetailLevel(int[] levelPos)
+	{
+		return (byte) levelPos[0];
+	}
+	
+	public static int getPosX(int[] levelPos)
+	{
+		return levelPos[1];
+	}
+	
+	public static int getPosZ(int[] levelPos)
+	{
+		return levelPos[2];
+	}
+	
+	public static int getDistance(int[] levelPos)
+	{
+		return levelPos[3];
+	}
+	
+	public static int[] getRegionModule(int[] levelPos)
+	{
+		return getRegionModule(getDetailLevel(levelPos), getPosX(levelPos), getPosZ(levelPos));
+	}
+	
+	public static int[] getRegionModule(byte detailLevel, int posX, int posZ)
+	{
+		int width = 1 << (LodUtil.REGION_DETAIL_LEVEL - detailLevel);
+		return createLevelPos(
+				detailLevel,
+				Math.floorMod(posX, width),
+				Math.floorMod(posZ, width));
+	}
+	
+	public static int[] applyOffset(int[] levelPos, int xOffset, int zOffset)
+	{
+		return createLevelPos(
+				getDetailLevel(levelPos),
+				getPosX(levelPos) + xOffset,
+				getPosZ(levelPos) + zOffset);
+	}
+	
+	public static int[] applyLevelOffset(int[] levelPos, byte detailOffset, int xOffset, int zOffset)
+	{
+		return createLevelPos(
+				getDetailLevel(levelPos),
+				getPosX(levelPos) + xOffset * (1 << detailOffset),
+				getPosZ(levelPos) + zOffset * (1 << detailOffset));
+	}
+	
+	public static int getRegionPosX(int[] levelPos)
+	{
+		int width = 1 << (LodUtil.REGION_DETAIL_LEVEL - getDetailLevel(levelPos));
+		return Math.floorDiv(getPosX(levelPos), width);
+	}
+	
+	public static int getRegionPosZ(int[] levelPos)
+	{
+		int width = 1 << (LodUtil.REGION_DETAIL_LEVEL - getDetailLevel(levelPos));
+		return Math.floorDiv(getPosZ(levelPos), width);
+	}
+	
+	public static int getChunkPos(byte detailLevel, int pos)
+	{
+		return convert(detailLevel, pos, LodUtil.CHUNK_DETAIL_LEVEL);
+	}
+	
+	
+	public static int maxDistance(byte detailLevel, int posX, int posZ, int playerPosX, int playerPosZ)
+	{
+		int width = 1 << detailLevel;
+		
+		int startPosX = posX * width;
+		int startPosZ = posZ * width;
+		int endPosX = startPosX + width;
+		int endPosZ = startPosZ + width;
+		
+		int maxDistance = (int) Math.sqrt(Math.pow(playerPosX - startPosX, 2) + Math.pow(playerPosZ - startPosZ, 2));
+		maxDistance = Math.max(maxDistance, (int) Math.sqrt(Math.pow(playerPosX - startPosX, 2) + Math.pow(playerPosZ - endPosZ, 2)));
+		maxDistance = Math.max(maxDistance, (int) Math.sqrt(Math.pow(playerPosX - endPosX, 2) + Math.pow(playerPosZ - startPosZ, 2)));
+		maxDistance = Math.max(maxDistance, (int) Math.sqrt(Math.pow(playerPosX - endPosX, 2) + Math.pow(playerPosZ - endPosZ, 2)));
+		
+		return maxDistance;
+	}
+	
+	public static int maxDistance(byte detailLevel, int posX, int posZ, int playerPosX, int playerPosZ, int xRegion, int zRegion)
+	{
+		int width = 1 << (LodUtil.REGION_DETAIL_LEVEL - detailLevel);
+		int newPosX = xRegion * width + posX;
+		int newPosZ = zRegion * width + posZ;
+		return maxDistance(detailLevel, newPosX, newPosZ, playerPosX, playerPosZ);
+	}
+	
+	
+	public static int minDistance(byte detailLevel, int posX, int posZ, int playerPosX, int playerPosZ)
+	{
+		int width = 1 << detailLevel;
+		
+		int startPosX = posX * width;
+		int startPosZ = posZ * width;
+		int endPosX = startPosX + width;
+		int endPosZ = startPosZ + width;
+		
+		boolean inXArea = playerPosX >= startPosX && playerPosX <= endPosX;
+		boolean inZArea = playerPosZ >= startPosZ && playerPosZ <= endPosZ;
+		if (inXArea && inZArea)
+			return 0;
+		else if (inXArea)
+		{
+			return Math.min(
+					Math.abs(playerPosZ - startPosZ),
+					Math.abs(playerPosZ - endPosZ)
+			);
+		}
+		else if (inZArea)
+		{
+			return Math.min(
+					Math.abs(playerPosX - startPosX),
+					Math.abs(playerPosX - endPosX)
+			);
+		}
+		else
+		{
+			int minDistance = (int) Math.sqrt(Math.pow(playerPosX - startPosX, 2) + Math.pow(playerPosZ - startPosZ, 2));
+			minDistance = Math.min(minDistance, (int) Math.sqrt(Math.pow(playerPosX - startPosX, 2) + Math.pow(playerPosZ - endPosZ, 2)));
+			minDistance = Math.min(minDistance, (int) Math.sqrt(Math.pow(playerPosX - endPosX, 2) + Math.pow(playerPosZ - startPosZ, 2)));
+			minDistance = Math.min(minDistance, (int) Math.sqrt(Math.pow(playerPosX - endPosX, 2) + Math.pow(playerPosZ - endPosZ, 2)));
+			return minDistance;
+		}
+	}
+	
+	public static int minDistance(byte detailLevel, int posX, int posZ, int playerPosX, int playerPosZ, int xRegion, int zRegion)
+	{
+		int width = 1 << (LodUtil.REGION_DETAIL_LEVEL - detailLevel);
+		int newPosX = xRegion * width + posX;
+		int newPosZ = zRegion * width + posZ;
+		return minDistance(detailLevel, newPosX, newPosZ, playerPosX, playerPosZ);
+	}
+	
+	public static int compareDistance(int firstDistance, int secondDistance)
+	{
+		return Integer.compare(
+				firstDistance,
+				secondDistance);
+	}
+	
+	
+	public static int compareLevelAndDistance(byte firstDetail, int firstDistance, byte secondDetail, int secondDistance)
+	{
+		int compareResult = Integer.compare(
+				secondDetail,
+				firstDetail);
+		if (compareResult == 0)
+		{
+			compareResult = Integer.compare(
+					firstDistance,
+					secondDistance);
+		}
+		return compareResult;
+	}
+	
+	@SuppressWarnings("unused")
+	public static String toString(int[] levelPos)
+	{
+		return (getDetailLevel(levelPos) + " "
+				+ getPosX(levelPos) + " "
+				+ getPosZ(levelPos));
+	}
+	
+	public static String toString(byte detailLevel, int posX, int posZ)
+	{
+		return (detailLevel + " " + posX + " " + posZ);
+	}
+}
@@ -1,149 +0,0 @@
-package com.seibel.lod.util;
-
-import java.nio.file.Path;
-import java.nio.file.Paths;
-
-import org.apache.commons.lang3.tuple.Pair;
-import org.apache.logging.log4j.LogManager;
-
-import com.electronwill.nightconfig.core.file.CommentedFileConfig;
-import com.electronwill.nightconfig.core.io.WritingMode;
-import com.seibel.lod.ModInfo;
-import com.seibel.lod.enums.FogDistance;
-import com.seibel.lod.enums.LodColorStyle;
-import com.seibel.lod.enums.LodDetail;
-import com.seibel.lod.enums.LodTemplate;
-
-import net.minecraftforge.common.ForgeConfigSpec;
-import net.minecraftforge.eventbus.api.SubscribeEvent;
-import net.minecraftforge.fml.common.Mod;
-import net.minecraftforge.fml.config.ModConfig;
-
-/**
- * 
- * @author James Seibel
- * @version 05-31-2021
- */
-@Mod.EventBusSubscriber
-public class LodConfig
-{
-	public static class Client
-	{
-		public ForgeConfigSpec.BooleanValue drawLODs;
-		
-		public ForgeConfigSpec.EnumValue<FogDistance> fogDistance;
-		
-		public ForgeConfigSpec.BooleanValue debugMode;
-		
-		public ForgeConfigSpec.EnumValue<LodTemplate> lodTemplate;
-		
-		public ForgeConfigSpec.EnumValue<LodDetail> lodDetail;
-		
-		public ForgeConfigSpec.EnumValue<LodColorStyle> lodColorStyle;
-		
-		/** this is multiplied by the default view distance
-		 * to determine how far out to generate/render LODs */
-		public ForgeConfigSpec.IntValue lodChunkRadiusMultiplier;
-		
-		Client(ForgeConfigSpec.Builder builder)
-		{
-	        builder.comment(ModInfo.MODNAME + " configuration settings").push("client");
-	        
-	        drawLODs = builder
-	        		.comment("\n"
-	        				+ " If false LODs will not be drawn, \n"
-	        				+ " however they will still be generated \n"
-	        				+ " and saved to file for later use.")
-	        		.define("drawLODs", true);
-	        
-	        fogDistance = builder
-	                .comment("\n"
-	                		+ " At what distance should Fog be drawn on the LODs? \n"
-	                		+ " If the fog cuts off ubruptly or you are using Optifine's \"fast\" \n"
-	                		+ " fog option set this to " + FogDistance.NEAR.toString() + " or " + FogDistance.FAR.toString() + ".")
-	                .defineEnum("fogDistance", FogDistance.NEAR_AND_FAR);
-	        
-	        debugMode = builder
-	                .comment("\n"
-	                		+ " If false the LODs will draw with their normal world colors. \n"
-	                		+ " If true they will draw as a black and white checkerboard. \n"
-	                		+ " This can be used for debugging or imagining you are playing a \n"
-	                		+ " giant game of chess ;)")
-	                .define("drawCheckerBoard", false);
-	        
-	        lodTemplate = builder
-	                .comment("\n"
-	                		+ " How should the LODs be drawn? \n"
-	                		+ " " + LodTemplate.CUBIC.toString() + ": LOD Chunks are drawn as rectangular prisms (boxes). \n"
-	                		+ " " + LodTemplate.TRIANGULAR.toString() + ": LOD Chunks smoothly transition between other. \n"
-	                		+ " " + LodTemplate.DYNAMIC.toString() + ": LOD Chunks smoothly transition between other, "
-	                		+ " " + "         unless a neighboring chunk is at a significantly different height. ")
-	                .defineEnum("lodTemplate", LodTemplate.CUBIC);
-	        
-	        lodDetail = builder
-	                .comment("\n"
-	                		+ " How detailed should the LODs be? \n"
-	                		+ " " + LodDetail.SINGLE.toString() + ": render 1 LOD for each Chunk. \n"
-            				+ " " + LodDetail.DOUBLE.toString() + ": render 4 LODs for each Chunk.")
-	                .defineEnum("lodGeometryQuality", LodDetail.SINGLE);
-	        
-	        lodColorStyle = builder
-	                .comment("\n"
-	                		+ " How should the LODs be colored? \n"
-	                		+ " " + LodColorStyle.TOP.toString() + ": Use the color from the top of the LOD chunk for all sides. \n"
-	                		+ " " + LodColorStyle.INDIVIDUAL_SIDES.toString() + ": For each side of the LOD use the color corresponding to that side. ")
-	                .defineEnum("lodColorStyle", LodColorStyle.TOP);
-	        
-	        lodChunkRadiusMultiplier = builder
-	                .comment("\n"
-	                		+ " This is multiplied by the default view distance \n"
-	                		+ " to determine how far out to generate/render LODs. \n"
-	                		+ " A value of 2 means that there is 1 render distance worth \n"
-	                		+ " of LODs in each cardinal direction.")
-	                .defineInRange("lodChunkRadiusMultiplier", 6, 2, 1023);
-	        
-	        builder.pop();
-	    }
-	}
-	
-	
-
-    /**
-     * {@link Path} to the configuration file of this mod
-     */
-    private static final Path CONFIG_PATH =
-            Paths.get("config", ModInfo.MODID + ".toml");
-
-    public static final ForgeConfigSpec clientSpec;
-    public static final Client CLIENT;
-    static {
-        final Pair<Client, ForgeConfigSpec> specPair = new ForgeConfigSpec.Builder().configure(Client::new);
-        clientSpec = specPair.getRight();
-        CLIENT = specPair.getLeft();
-        
-        // setup the config file
-        CommentedFileConfig config = CommentedFileConfig.builder(CONFIG_PATH)
-                .writingMode(WritingMode.REPLACE)
-                .build();
-        config.load();
-        config.save();
-        clientSpec.setConfig(config);
-    }
-    
-    
-    @SubscribeEvent
-    public static void onLoad(final ModConfig.Loading configEvent)
-    {
-        LogManager.getLogger().debug(ModInfo.MODNAME, "Loaded forge config file {}", configEvent.getConfig().getFileName());
-    }
-    
-    @SubscribeEvent
-    public static void onFileChange(final ModConfig.Reloading configEvent)
-    {
-        LogManager.getLogger().debug(ModInfo.MODNAME, "Forge config just got changed on the file system!");
-    }
-    
-    
-    
-    
-}
@@ -0,0 +1,46 @@
+/*
+ *    This file is part of the Distant Horizon mod (formerly the LOD Mod),
+ *    licensed under the GNU GPL v3 License.
+ *
+ *    Copyright (C) 2020  James Seibel
+ *
+ *    This program is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, version 3.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.seibel.lod.util;
+
+import java.util.concurrent.ThreadFactory;
+
+/**
+ * Just a simple ThreadFactory to name ExecutorService
+ * threads, which can be helpful when debugging.
+ * @author James Seibel
+ * @version 8-15-2021
+ */
+public class LodThreadFactory implements ThreadFactory
+{
+	public final String threadName;
+	
+	
+	public LodThreadFactory(String newThreadName)
+	{
+		threadName = newThreadName + " Thread";
+	}
+	
+	@Override
+	public Thread newThread(Runnable r)
+	{
+		return new Thread(r, threadName);
+	}
+	
+}
@@ -0,0 +1,512 @@
+/*
+ *    This file is part of the Distant Horizon mod (formerly the LOD Mod),
+ *    licensed under the GNU GPL v3 License.
+ *
+ *    Copyright (C) 2020  James Seibel
+ *
+ *    This program is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, version 3.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.seibel.lod.util;
+
+import java.awt.Color;
+import java.io.File;
+import java.util.HashSet;
+
+import com.seibel.lod.builders.bufferBuilding.lodTemplates.Box;
+import com.seibel.lod.config.LodConfig;
+import com.seibel.lod.enums.HorizontalResolution;
+import com.seibel.lod.enums.VanillaOverdraw;
+import com.seibel.lod.objects.LodDimension;
+import com.seibel.lod.objects.RegionPos;
+import com.seibel.lod.wrappers.MinecraftWrapper;
+
+import net.minecraft.client.multiplayer.ServerData;
+import net.minecraft.client.renderer.WorldRenderer;
+import net.minecraft.client.renderer.chunk.ChunkRenderDispatcher.CompiledChunk;
+import net.minecraft.client.renderer.vertex.DefaultVertexFormats;
+import net.minecraft.client.renderer.vertex.VertexFormat;
+import net.minecraft.server.integrated.IntegratedServer;
+import net.minecraft.util.Direction;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.util.math.ChunkPos;
+import net.minecraft.world.DimensionType;
+import net.minecraft.world.IWorld;
+import net.minecraft.world.chunk.ChunkSection;
+import net.minecraft.world.chunk.IChunk;
+import net.minecraft.world.gen.Heightmap;
+import net.minecraft.world.server.ServerChunkProvider;
+import net.minecraft.world.server.ServerWorld;
+
+/**
+ * This class holds methods and constants that may be used in multiple places.
+ * 
+ * @author James Seibel
+ * @version 10-20-2021
+ */
+public class LodUtil
+{
+	private static final MinecraftWrapper mc = MinecraftWrapper.INSTANCE;
+	
+	/**
+	 * Vanilla render distances less than or equal to this will not allow partial
+	 * overdraw. The VanillaOverdraw will either be ALWAYS or NEVER.
+	 */
+	public static final int MINIMUM_RENDER_DISTANCE_FOR_PARTIAL_OVERDRAW = 4;
+	
+	/**
+	 * Vanilla render distances less than or equal to this will cause the overdraw to
+	 * run at a smaller fraction of the vanilla render distance.
+	 */
+	public static final int MINIMUM_RENDER_DISTANCE_FOR_FAR_OVERDRAW = 11;
+	
+	
+	
+	
+	/** The maximum number of LODs that can be rendered vertically */
+	public static final int MAX_NUMBER_OF_VERTICAL_LODS = 32;
+	
+	/**
+	 * alpha used when drawing chunks in debug mode
+	 */
+	public static final int DEBUG_ALPHA = 255; // 0 - 255
+	public static final Color COLOR_DEBUG_BLACK = new Color(0, 0, 0, DEBUG_ALPHA);
+	public static final Color COLOR_DEBUG_WHITE = new Color(255, 255, 255, DEBUG_ALPHA);
+	public static final Color COLOR_INVISIBLE = new Color(0, 0, 0, 0);
+	
+	public static final int CEILED_DIMENSION_MAX_RENDER_DISTANCE = 64; // 0 - 255
+	
+	/**
+	 * In order of nearest to farthest: <br>
+	 * Red, Orange, Yellow, Green, Cyan, Blue, Magenta, white, gray, black
+	 */
+	public static final Color[] DEBUG_DETAIL_LEVEL_COLORS = new Color[] { Color.RED, Color.ORANGE, Color.YELLOW, Color.GREEN, Color.CYAN, Color.BLUE, Color.MAGENTA, Color.WHITE, Color.GRAY, Color.BLACK };
+	
+	
+	public static final byte DETAIL_OPTIONS = 10;
+	
+	/** 512 blocks wide */
+	public static final byte REGION_DETAIL_LEVEL = DETAIL_OPTIONS - 1;
+	/** 16 blocks wide */
+	public static final byte CHUNK_DETAIL_LEVEL = 4;
+	/** 1 block wide */
+	public static final byte BLOCK_DETAIL_LEVEL = 0;
+	
+	public static final short MAX_VERTICAL_DATA = 4;
+	
+	/**
+	 * measured in Blocks <br>
+	 * detail level max - 1
+	 */
+	public static final short REGION_WIDTH = 1 << REGION_DETAIL_LEVEL;
+	/**
+	 * measured in Blocks <br>
+	 * detail level 4
+	 */
+	public static final short CHUNK_WIDTH = 16;
+	/**
+	 * measured in Blocks <br>
+	 * detail level 0
+	 */
+	public static final short BLOCK_WIDTH = 1;
+	
+	
+	/** number of chunks wide */
+	public static final int REGION_WIDTH_IN_CHUNKS = REGION_WIDTH / CHUNK_WIDTH;
+	
+	
+	/**
+	 * If we ever need to use a heightmap for any reason, use this one.
+	 */
+	public static final Heightmap.Type DEFAULT_HEIGHTMAP = Heightmap.Type.WORLD_SURFACE_WG;
+	
+	/**
+	 * This regex finds any characters that are invalid for use in a windows
+	 * (and by extension mac and linux) file path
+	 */
+	public static final String INVALID_FILE_CHARACTERS_REGEX = "[\\\\/:*?\"<>|]";
+	
+	/**
+	 * 64 MB by default is the maximum amount of memory that
+	 * can be directly allocated. <br><br>
+	 * <p>
+	 * I know there are commands to change that amount
+	 * (specifically "-XX:MaxDirectMemorySize"), but
+	 * I have no idea how to access that amount. <br>
+	 * So I guess this will be the hard limit for now. <br><br>
+	 * <p>
+	 * https://stackoverflow.com/questions/50499238/bytebuffer-allocatedirect-and-xmx
+	 */
+	public static final int MAX_ALLOCATABLE_DIRECT_MEMORY = 64 * 1024 * 1024;
+	
+	
+	public static final VertexFormat LOD_VERTEX_FORMAT = DefaultVertexFormats.POSITION_COLOR;
+	
+	
+	
+	
+	
+	/**
+	 * Gets the first valid ServerWorld.
+	 * @return null if there are no ServerWorlds
+	 */
+	public static ServerWorld getFirstValidServerWorld()
+	{
+		if (mc.hasSinglePlayerServer())
+			return null;
+		
+		Iterable<ServerWorld> worlds = mc.getSinglePlayerServer().getAllLevels();
+		
+		for (ServerWorld world : worlds)
+			return world;
+		
+		return null;
+	}
+	
+	/**
+	 * Gets the ServerWorld for the relevant dimension.
+	 * @return null if there is no ServerWorld for the given dimension
+	 */
+	public static ServerWorld getServerWorldFromDimension(DimensionType dimension)
+	{
+		IntegratedServer server = mc.getSinglePlayerServer();
+		if (server == null)
+			return null;
+		
+		Iterable<ServerWorld> worlds = server.getAllLevels();
+		ServerWorld returnWorld = null;
+		
+		for (ServerWorld world : worlds)
+		{
+			if (world.dimensionType() == dimension)
+			{
+				returnWorld = world;
+				break;
+			}
+		}
+		
+		return returnWorld;
+	}
+	
+	/** Convert a 2D absolute position into a quad tree relative position. */
+	public static RegionPos convertGenericPosToRegionPos(int x, int z, int detailLevel)
+	{
+		int relativePosX = Math.floorDiv(x, (int) Math.pow(2, LodUtil.REGION_DETAIL_LEVEL - detailLevel));
+		int relativePosZ = Math.floorDiv(z, (int) Math.pow(2, LodUtil.REGION_DETAIL_LEVEL - detailLevel));
+		
+		return new RegionPos(relativePosX, relativePosZ);
+	}
+	
+	/** Convert a 2D absolute position into a quad tree relative position. */
+	public static int convertLevelPos(int pos, int currentDetailLevel, int targetDetailLevel)
+	{
+		return Math.floorDiv(pos, (int) Math.pow(2, targetDetailLevel - currentDetailLevel));
+	}
+	
+	/**
+	 * Return whether the given chunk
+	 * has any data in it.
+	 */
+	public static boolean chunkHasBlockData(IChunk chunk)
+	{
+		ChunkSection[] blockStorage = chunk.getSections();
+		
+		for (ChunkSection section : blockStorage)
+		{
+			if (section != null && !section.isEmpty())
+			{
+				return true;
+			}
+		}
+		
+		return false;
+	}
+	
+	
+	/**
+	 * If on single player this will return the name of the user's
+	 * world, if in multiplayer it will return the server name, IP,
+	 * and game version.
+	 */
+	public static String getWorldID(IWorld world)
+	{
+		if (mc.hasSinglePlayerServer())
+		{
+			// chop off the dimension ID as it is not needed/wanted
+			String dimId = getDimensionIDFromWorld(world);
+			
+			// get the world name
+			int saveIndex = dimId.indexOf("saves") + 1 + "saves".length();
+			int slashIndex = dimId.indexOf(File.separatorChar, saveIndex);
+			dimId = dimId.substring(saveIndex, slashIndex);
+			return dimId;
+		}
+		else
+		{
+			return getServerId();
+		}
+	}
+	
+	
+	/**
+	 * If on single player this will return the name of the user's
+	 * world and the dimensional save folder, if in multiplayer
+	 * it will return the server name, ip, game version, and dimension.<br>
+	 * <br>
+	 * This can be used to determine where to save files for a given
+	 * dimension.
+	 */
+	public static String getDimensionIDFromWorld(IWorld world)
+	{
+		if (mc.hasSinglePlayerServer())
+		{
+			// this will return the world save location
+			// and the dimension folder
+			
+			ServerWorld serverWorld = LodUtil.getServerWorldFromDimension(world.dimensionType());
+			if (serverWorld == null)
+				throw new NullPointerException("getDimensionIDFromWorld wasn't able to get the ServerWorld for the dimension " + world.dimensionType().effectsLocation().getPath());
+			
+			ServerChunkProvider provider = serverWorld.getChunkSource();
+			if (provider == null)
+				throw new NullPointerException("getDimensionIDFromWorld wasn't able to get the ServerChunkProvider for the dimension " + world.dimensionType().effectsLocation().getPath());
+			
+			return provider.dataStorage.dataFolder.toString();
+		}
+		else
+		{
+			return getServerId() + File.separatorChar + "dim_" + world.dimensionType().effectsLocation().getPath() + File.separatorChar;
+		}
+	}
+	
+	/** returns the server name, IP and game version. */
+	public static String getServerId()
+	{
+		ServerData server = mc.getCurrentServer();
+		String serverName = server.name.replaceAll(INVALID_FILE_CHARACTERS_REGEX, "");
+		String serverIp = server.ip.replaceAll(INVALID_FILE_CHARACTERS_REGEX, "");
+		String serverMcVersion = server.version.getString().replaceAll(INVALID_FILE_CHARACTERS_REGEX, "");
+		
+		return serverName + ", IP " + serverIp + ", GameVersion " + serverMcVersion;
+	}
+	
+	
+	/** Convert a BlockColors int into a Color object */
+	public static Color intToColor(int num)
+	{
+		int filter = 0b11111111;
+		
+		int red = (num >> 16) & filter;
+		int green = (num >> 8) & filter;
+		int blue = num & filter;
+		
+		return new Color(red, green, blue);
+	}
+	
+	/** Convert a Color into a BlockColors object. */
+	public static int colorToInt(Color color)
+	{
+		return color.getRGB();
+	}
+	
+	
+	/**
+	 * Clamps the given value between the min and max values.
+	 * May behave strangely if min > max.
+	 */
+	public static int clamp(int min, int value, int max)
+	{
+		return Math.min(max, Math.max(value, min));
+	}
+	
+	/**
+	 * Clamps the given value between the min and max values.
+	 * May behave strangely if min > max.
+	 */
+	public static float clamp(float min, float value, float max)
+	{
+		return Math.min(max, Math.max(value, min));
+	}
+	
+	/**
+	 * Clamps the given value between the min and max values.
+	 * May behave strangely if min > max.
+	 */
+	public static double clamp(double min, double value, double max)
+	{
+		return Math.min(max, Math.max(value, min));
+	}
+	
+	/**
+	 * Get a HashSet of all ChunkPos within the normal render distance
+	 * that should not be rendered.
+	 */
+	public static HashSet<ChunkPos> getNearbyLodChunkPosToSkip(LodDimension lodDim, BlockPos playerPos)
+	{
+		int chunkRenderDist = mc.getRenderDistance();
+		ChunkPos centerChunk = new ChunkPos(playerPos);
+		
+		int skipRadius;
+		VanillaOverdraw overdraw = LodConfig.CLIENT.graphics.advancedGraphicsOption.vanillaOverdraw.get();
+		HorizontalResolution drawRes = LodConfig.CLIENT.graphics.qualityOption.drawResolution.get();
+		
+		// apply distance based rules for dynamic overdraw
+		if (overdraw == VanillaOverdraw.DYNAMIC
+				&& chunkRenderDist <= MINIMUM_RENDER_DISTANCE_FOR_PARTIAL_OVERDRAW)
+		{
+			// The vanilla render distance isn't far enough 
+			// for partial skipping to make sense...
+			if (!lodDim.dimension.hasCeiling() && (drawRes == HorizontalResolution.BLOCK))
+			{
+				// ...and the dimension is open, so we don't have to worry about
+				// LODs rendering on top of the player,
+				// and the user is using a high horizontal resolution,
+				// so the overdraw shouldn't be noticeable
+				overdraw = VanillaOverdraw.ALWAYS;
+			}
+			else
+			{
+				// ...but we are underground, so we don't want
+				// LODs rendering on top of the player,
+				// Or the user is using a LOW horizontal resolution
+				// and overdraw would be very noticeable.
+				overdraw = VanillaOverdraw.NEVER;
+			}
+		}
+		
+		
+		// determine the skipping type based
+		// on the overdraw type
+		switch (overdraw)
+		{
+		case ALWAYS:
+			// don't skip any positions
+			return new HashSet<>();
+		
+		case DYNAMIC:
+			
+			if (chunkRenderDist > MINIMUM_RENDER_DISTANCE_FOR_PARTIAL_OVERDRAW 
+				&& chunkRenderDist <= MINIMUM_RENDER_DISTANCE_FOR_FAR_OVERDRAW)
+			{
+				// This is a small render distance (but greater than the minimum partial
+				// distance), skip positions that are greater than 2/3 the render distance
+				skipRadius = (int) Math.ceil(chunkRenderDist * (2.0/3.0));
+			}
+			else
+			{
+				// This is a large render distance. Skip positions that are greater than
+				// 4/5ths the render distance
+				skipRadius = (int) Math.ceil(chunkRenderDist * (4.0 / 5.0));
+			}
+			break;
+		
+		default:
+		case BORDER:
+		case NEVER:
+			// skip chunks in render distance that are rendered
+			// by vanilla minecraft
+			skipRadius = 0;
+			break;
+		}
+		
+		
+		// get the chunks that are going to be rendered by Minecraft
+		HashSet<ChunkPos> posToSkip = getRenderedChunks();
+		
+		
+		// remove everything outside the skipRadius,
+		// if the skipRadius is being used
+		if (skipRadius != 0)
+		{
+			for (int x = centerChunk.x - chunkRenderDist; x < centerChunk.x + chunkRenderDist; x++)
+			{
+				for (int z = centerChunk.z - chunkRenderDist; z < centerChunk.z + chunkRenderDist; z++)
+				{
+					if (x <= centerChunk.x - skipRadius || x >= centerChunk.x + skipRadius
+							|| z <= centerChunk.z - skipRadius || z >= centerChunk.z + skipRadius)
+						posToSkip.remove(new ChunkPos(x, z));
+					
+				}
+			}
+		}
+		return posToSkip;
+	}
+	
+	
+	/**
+	 * This method returns the ChunkPos of all chunks that Minecraft
+	 * is going to render this frame. <br><br>
+	 * <p>
+	 * Note: This isn't perfect. It will return some chunks that are outside
+	 * the clipping plane. (For example, if you are high above the ground some chunks
+	 * will be incorrectly added, even though they are outside render range).
+	 */
+	public static HashSet<ChunkPos> getRenderedChunks()
+	{
+		HashSet<ChunkPos> loadedPos = new HashSet<>();
+		
+		// Wow, those are some long names!
+		
+		// go through every RenderInfo to get the compiled chunks
+		WorldRenderer renderer = mc.getLevelRenderer();
+		for (WorldRenderer.LocalRenderInformationContainer worldRenderer$LocalRenderInformationContainer : renderer.renderChunks)
+		{
+			CompiledChunk compiledChunk = worldRenderer$LocalRenderInformationContainer.chunk.getCompiledChunk();
+			if (!compiledChunk.hasNoRenderableLayers())
+			{
+				// add the ChunkPos for every rendered chunk
+				BlockPos bpos = worldRenderer$LocalRenderInformationContainer.chunk.getOrigin();
+				
+				loadedPos.add(new ChunkPos(bpos));
+			}
+		}
+		
+		
+		return loadedPos;
+	}
+	
+	/**
+	 * This method find if a given chunk is a border chunk of the renderable ones
+	 * @param vanillaRenderedChunks matrix of the vanilla rendered chunks
+	 * @param x relative (to the matrix) x chunk to check
+	 * @param z relative (to the matrix) z chunk to check
+	 * @return true if and only if the chunk is a border of the renderable chunks
+	 */
+	public static boolean isBorderChunk(boolean[][] vanillaRenderedChunks, int x, int z)
+	{
+		if (x < 0 || z < 0 || x >= vanillaRenderedChunks.length || z >= vanillaRenderedChunks[0].length)
+			return false;
+		int tempX;
+		int tempZ;
+		for (Direction direction : Box.ADJ_DIRECTIONS)
+		{
+			tempX = x + Box.DIRECTION_NORMAL_MAP.get(direction).getX();
+			tempZ = z + Box.DIRECTION_NORMAL_MAP.get(direction).getZ();
+			if (!(tempX < 0 || tempZ < 0 || tempX >= vanillaRenderedChunks.length || tempZ >= vanillaRenderedChunks[0].length))
+			{
+				if (!vanillaRenderedChunks[tempX][tempZ])
+				{
+					return true;
+				}
+			}
+			else
+			{
+				if (vanillaRenderedChunks[x][z])
+				{
+					return true;
+				}
+			}
+		}
+		return false;
+	}
+}
@@ -1,215 +0,0 @@
-package com.seibel.lod.util;
-
-import com.seibel.lod.objects.LodRegion;
-import com.seibel.lod.objects.RegionPos;
-
-import net.minecraft.client.Minecraft;
-import net.minecraft.client.multiplayer.ServerData;
-import net.minecraft.server.integrated.IntegratedServer;
-import net.minecraft.util.math.ChunkPos;
-import net.minecraft.world.DimensionType;
-import net.minecraft.world.IWorld;
-import net.minecraft.world.chunk.ChunkSection;
-import net.minecraft.world.chunk.IChunk;
-import net.minecraft.world.server.ServerChunkProvider;
-import net.minecraft.world.server.ServerWorld;
-
-/**
- * This class holds methods that may be used in multiple places.
- * 
- * @author James Seibel
- * @version 04-01-2021
- */
-public class LodUtils
-{
-	private static Minecraft mc = Minecraft.getInstance();
-	
-	
-	
-	/**
-	 * Gets the first valid ServerWorld.
-	 * 
-	 * @return null if there are no ServerWorlds
-	 */
-	public static ServerWorld getFirstValidServerWorld()
-	{
-		if (mc.getIntegratedServer() == null)
-			return null;
-		
-		Iterable<ServerWorld> worlds = mc.getIntegratedServer().getWorlds();
-		
-		for (ServerWorld world : worlds)
-			return world;
-				
-		return null;
-	}
-	
-	/**
-	 * Gets the ServerWorld for the relevant dimension.
-	 * 
-	 * @return null if there is no ServerWorld for the given dimension
-	 */
-	public static ServerWorld getServerWorldFromDimension(DimensionType dimension)
-	{
-		IntegratedServer server = mc.getIntegratedServer();
-		if (server == null)
-			return null;
-		
-		Iterable<ServerWorld> worlds = server.getWorlds();
-		ServerWorld returnWorld = null;
-		
-		for (ServerWorld world : worlds)
-		{
-			if(world.getDimensionType() == dimension)
-			{
-				returnWorld = world;
-				break;
-			}
-		}
-				
-		return returnWorld;
-	}
-	
-	/**
-	 * Convert the given ChunkPos into a RegionPos.
-	 */
-	public static RegionPos convertChunkPosToRegionPos(ChunkPos pos)
-	{
-		RegionPos rPos = new RegionPos();
-		rPos.x = pos.x / LodRegion.SIZE;
-		rPos.z = pos.z / LodRegion.SIZE;
-		
-		// prevent issues if X/Z is negative and less than 16
-		if (pos.x < 0)
-		{
-			rPos.x = (Math.abs(rPos.x) * -1) - 1; 
-		}
-		if (pos.z < 0)
-		{
-			rPos.z = (Math.abs(rPos.z) * -1) - 1; 
-		}
-		
-		return rPos;
-	}
-	
-	/**
-	 * Return whether the given chunk
-	 * has any data in it.
-	 */
-	public static boolean chunkHasBlockData(IChunk chunk)
-	{
-		ChunkSection[] blockStorage = chunk.getSections();
-		
-		for(ChunkSection section : blockStorage)
-		{
-			if(section != null && !section.isEmpty())
-			{
-				return true;
-			}
-		}
-		
-		return false;
-	}
-	
-	
-	
-	public static String getCurrentDimensionID()
-	{
-
-		Minecraft mc = Minecraft.getInstance();
-		
-		if(mc.isIntegratedServerRunning())
-		{
-			// this will return the world save location
-			// and the dimension folder
-			
-			if(mc.world == null)
-				return "";
-			
-			ServerWorld serverWorld = LodUtils.getServerWorldFromDimension(mc.world.getDimensionType());
-			if(serverWorld == null)
-				return "";
-			
-			ServerChunkProvider provider = serverWorld.getChunkProvider();
-			if(provider == null)
-				return "";
-			
-			return provider.getSavedData().folder.toString();
-		}
-		else
-		{
-			ServerData server = mc.getCurrentServerData();
-			return server.serverName + ", IP " + 
-					server.serverIP + ", GameVersion " + 
-					server.gameVersion.getString() + "\\"
-					+ "dim_" + mc.world.getDimensionType().getEffects().getPath() + "\\";
-		}
-	}
-
-	
-	/**
-	 * If on single player this will return the name of the user's
-	 * world and the dimensional save folder, if in multiplayer 
-	 * it will return the server name, game version, and dimension.<br>
-	 * <br>
-	 * This can be used to determine where to save files for a given
-	 * dimension.
-	 */
-	public static String getDimensionIDFromWorld(IWorld world)
-	{
-		Minecraft mc = Minecraft.getInstance();
-		
-		if(mc.isIntegratedServerRunning())
-		{
-			// this will return the world save location
-			// and the dimension folder
-			
-			ServerWorld serverWorld = LodUtils.getServerWorldFromDimension(world.getDimensionType());
-			if(serverWorld == null)
-				throw new NullPointerException("getDimensionIDFromWorld wasn't able to get the ServerWorld for the dimension " + world.getDimensionType().getEffects().getPath());
-			
-			ServerChunkProvider provider = serverWorld.getChunkProvider();
-			if(provider == null)
-				throw new NullPointerException("getDimensionIDFromWorld wasn't able to get the ServerChunkProvider for the dimension " + world.getDimensionType().getEffects().getPath());
-			
-			return provider.getSavedData().folder.toString();
-		}
-		else
-		{
-			ServerData server = mc.getCurrentServerData();
-			return server.serverName + ", IP " + 
-					server.serverIP + ", GameVersion " + 
-					server.gameVersion.getString() + "\\"
-					+ "dim_" + world.getDimensionType().getEffects().getPath() + "\\";
-		}
-	}
-	
-	/**
-	 * If on single player this will return the name of the user's
-	 * world, if in multiplayer it will return the server name
-	 * and game version.
-	 */
-	public static String getWorldID(IWorld world)
-	{
-		if(mc.isIntegratedServerRunning())
-		{
-			// chop off the dimension ID as it is not needed/wanted
-			String dimId = getDimensionIDFromWorld(world);
-			
-			// get the world name
-			int saveIndex = dimId.indexOf("saves") + 1 + "saves".length();
-			int slashIndex = dimId.indexOf('\\', saveIndex);
-			dimId = dimId.substring(saveIndex, slashIndex);
-			return dimId;
-		}
-		else
-		{
-			ServerData server = mc.getCurrentServerData();
-			return server.serverName + ", IP " + 
-					server.serverIP + ", GameVersion " + 
-					server.gameVersion.getString();
-		}
-	}
-	
-	
-}
@@ -1,26 +0,0 @@
-package com.seibel.lod.util;
-
-/**
- * This holds meta information about the mod.
- * 
- * @author James Seibel
- * @version 04-16-2020
- */
-public class Reference
-{
-	/** the mod's identifier  */
-	public static final String MOD_ID = "lod";
-	/** the mod's name */
-	public static final String NAME = "LOD Mod";
-	/** the mod's version */
-	public static final String VERSION = "1.0";
-	/** the version of minecraft this mod is built for */
-	public static final String ACCEPTED_VERSIONS = "[1.16.4]";
-	
-	/** where the client proxy class is */
-	public static final String CLIENT_PROXY_CLASS = "com.backsun.lod.proxy.ClientProxy";
-	/** where the  common proxy class is*/
-	public static final String COMMON_PROXY_CLASS = "com.backsun.lod.proxy.CommonProxy";
-	
-	
-}
@@ -1,96 +0,0 @@
-package com.seibel.lod.util;
-
-import java.lang.reflect.Field;
-
-import com.seibel.lod.enums.FogQuality;
-
-import net.minecraft.client.Minecraft;
-
-/**
- * This object is used to get variables from methods
- * where they are private.
- * 
- * @author James Seibel
- * @version 02-18-2021
- */
-public class ReflectionHandler
-{
-	private Minecraft mc = Minecraft.getInstance();
-	
-	public Field ofFogField = null;
-	
-	
-	public ReflectionHandler()
-	{
-		setupFogField();
-	}
-	
-	/**
-	 * Similar to setupFovMethod.
-	 */
-	private void setupFogField()
-	{
-		// get every variable from the entity renderer
-		Field[] vars = mc.gameSettings.getClass().getDeclaredFields();
-				
-		// try and find the ofFogType variable in gameSettings
-		for(Field f : vars)
-		{
-			if(f.getName().equals("ofFogType"))
-			{
-				ofFogField = f;
-				return;
-			}
-		}
-		
-		// we didn't find the field,
-		// either optifine isn't installed, or
-		// optifine changed the name of the variable
-		ofFogField = null;
-	}
-	
-	
-	
-	
-	
-	/**
-	 * Get what type of fog optifine is currently set to render.
-	 */
-	public FogQuality getFogQuality()
-	{
-		if (ofFogField == null)
-		{
-			// either optifine isn't installed,
-			// the variable name was changed, or
-			// the setup method wasn't called yet.
-			return FogQuality.OFF;
-		}
-		
-		int returnNum = 0;
-		
-		try
-		{
-			returnNum = (int)ofFogField.get(mc.gameSettings);
-		}
-		catch (IllegalArgumentException | IllegalAccessException e)
-		{
-			e.printStackTrace();
-		}
-		
-		switch (returnNum)
-		{
-			case 0:
-				return FogQuality.FAST;
-			case 1:
-				return FogQuality.FAST;
-			case 2:
-				return FogQuality.FANCY;
-			case 3:
-				return FogQuality.OFF;
-				
-			default:
-				return FogQuality.FAST;
-		}
-	}
-	
-}
@@ -0,0 +1,219 @@
+/*
+ *    This file is part of the Distant Horizon mod (formerly the LOD Mod),
+ *    licensed under the GNU GPL v3 License.
+ *
+ *    Copyright (C) 2020  James Seibel
+ *
+ *    This program is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, version 3.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.seibel.lod.util;
+
+import static com.seibel.lod.util.LodUtil.DETAIL_OPTIONS;
+
+import java.util.Arrays;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.ConcurrentMap;
+
+import com.seibel.lod.builders.bufferBuilding.lodTemplates.Box;
+
+import net.minecraft.util.Direction;
+
+/**
+ * Holds data used by specific threads so
+ * the data doesn't have to be recreated every
+ * time it is needed.
+ * 
+ * @author Leonardo Amato
+ * @version 9-25-2021
+ */
+public class ThreadMapUtil
+{
+	public static final ConcurrentMap<String, long[]> threadSingleUpdateMap = new ConcurrentHashMap<>();
+	public static final ConcurrentMap<String, long[][]> threadBuilderArrayMap = new ConcurrentHashMap<>();
+	public static final ConcurrentMap<String, long[][]> threadBuilderVerticalArrayMap = new ConcurrentHashMap<>();
+	public static final ConcurrentMap<String, long[]> threadVerticalAddDataMap = new ConcurrentHashMap<>();
+	public static final ConcurrentMap<String, byte[][]> saveContainer = new ConcurrentHashMap<>();
+	public static final ConcurrentMap<String, short[]> projectionArrayMap = new ConcurrentHashMap<>();
+	public static final ConcurrentMap<String, short[]> heightAndDepthMap = new ConcurrentHashMap<>();
+	public static final ConcurrentMap<String, long[]> singleDataToMergeMap = new ConcurrentHashMap<>();
+	public static final ConcurrentMap<String, long[][]> verticalUpdate = new ConcurrentHashMap<>();
+	
+	
+	//________________________//
+	// used in BufferBuilder  //
+	//________________________//
+	
+	public static final ConcurrentMap<String, boolean[]> adjShadeDisabled = new ConcurrentHashMap<>();
+	public static final ConcurrentMap<String, Map<Direction, long[]>> adjDataMap = new ConcurrentHashMap<>();
+	public static final ConcurrentMap<String, Box> boxMap = new ConcurrentHashMap<>();
+	
+	/** returns the array NOT cleared every time */
+	public static boolean[] getAdjShadeDisabledArray()
+	{
+		if (!adjShadeDisabled.containsKey(Thread.currentThread().getName())
+				|| (adjShadeDisabled.get(Thread.currentThread().getName()) == null))
+		{
+			adjShadeDisabled.put(Thread.currentThread().getName(), new boolean[Box.DIRECTIONS.length]);
+		}
+		Arrays.fill(adjShadeDisabled.get(Thread.currentThread().getName()), false);
+		return adjShadeDisabled.get(Thread.currentThread().getName());
+	}
+	
+	/** returns the array NOT cleared every time */
+	public static Map<Direction, long[]> getAdjDataArray(int verticalData)
+	{
+		if (!adjDataMap.containsKey(Thread.currentThread().getName())
+				|| (adjDataMap.get(Thread.currentThread().getName()) == null)
+				|| (adjDataMap.get(Thread.currentThread().getName()).get(Direction.NORTH) == null)
+				|| (adjDataMap.get(Thread.currentThread().getName()).get(Direction.NORTH).length != verticalData))
+		{
+			adjDataMap.put(Thread.currentThread().getName(), new HashMap<Direction, long[]>());
+			adjDataMap.get(Thread.currentThread().getName()).put(Direction.UP, new long[1]);
+			adjDataMap.get(Thread.currentThread().getName()).put(Direction.DOWN, new long[1]);
+			for (Direction direction : Box.ADJ_DIRECTIONS)
+				adjDataMap.get(Thread.currentThread().getName()).put(direction, new long[verticalData]);
+		}
+		else
+		{
+			
+			for (Direction direction : Box.ADJ_DIRECTIONS)
+				Arrays.fill(adjDataMap.get(Thread.currentThread().getName()).get(direction), DataPointUtil.EMPTY_DATA);
+		}
+		return adjDataMap.get(Thread.currentThread().getName());
+	}
+	
+	public static Box getBox()
+	{
+		if (!boxMap.containsKey(Thread.currentThread().getName())
+				|| (boxMap.get(Thread.currentThread().getName()) == null))
+		{
+			boxMap.put(Thread.currentThread().getName(), new Box());
+		}
+		boxMap.get(Thread.currentThread().getName()).reset();
+		return boxMap.get(Thread.currentThread().getName());
+	}
+	
+	//________________________//
+	// used in DataPointUtil  //
+	// mergeVerticalData      //
+	//________________________//
+	
+	
+	//________________________//
+	// used in DataPointUtil  //
+	// mergeSingleData        //
+	//________________________//
+	
+	
+	
+	/** returns the array filled with 0's */
+	public static long[] getBuilderVerticalArray(int detailLevel)
+	{
+		if (!threadBuilderVerticalArrayMap.containsKey(Thread.currentThread().getName()) || (threadBuilderVerticalArrayMap.get(Thread.currentThread().getName()) == null))
+		{
+			long[][] array = new long[5][];
+			int size = 1;
+			for (int i = 0; i < 5; i++)
+			{
+				array[i] = new long[size * size * DataPointUtil.worldHeight + 1];
+				size = size << 1;
+			}
+			threadBuilderVerticalArrayMap.put(Thread.currentThread().getName(), array);
+		}
+		Arrays.fill(threadBuilderVerticalArrayMap.get(Thread.currentThread().getName())[detailLevel], 0);
+		return threadBuilderVerticalArrayMap.get(Thread.currentThread().getName())[detailLevel];
+	}
+	
+	/** returns the array NOT cleared every time */
+	public static byte[] getSaveContainer(int detailLevel)
+	{
+		if (!saveContainer.containsKey(Thread.currentThread().getName()) || (saveContainer.get(Thread.currentThread().getName()) == null))
+		{
+			byte[][] array = new byte[DETAIL_OPTIONS][];
+			int size = 1;
+			for (int i = DETAIL_OPTIONS - 1; i >= 0; i--)
+			{
+				array[i] = new byte[2 + 8 * size * size * DetailDistanceUtil.getMaxVerticalData(i)];
+				size = size << 1;
+			}
+			saveContainer.put(Thread.currentThread().getName(), array);
+		}
+		//Arrays.fill(threadBuilderVerticalArrayMap.get(Thread.currentThread().getName())[detailLevel], 0);
+		return saveContainer.get(Thread.currentThread().getName())[detailLevel];
+	}
+	
+	
+	/** returns the array filled with 0's */
+	public static long[] getVerticalDataArray(int arrayLength)
+	{
+		if (!threadVerticalAddDataMap.containsKey(Thread.currentThread().getName()) || (threadVerticalAddDataMap.get(Thread.currentThread().getName()) == null))
+		{
+			threadVerticalAddDataMap.put(Thread.currentThread().getName(), new long[arrayLength]);
+		}
+		else
+		{
+			Arrays.fill(threadVerticalAddDataMap.get(Thread.currentThread().getName()), 0);
+		}
+		return threadVerticalAddDataMap.get(Thread.currentThread().getName());
+	}
+	
+	
+	
+	/** returns the array NOT cleared every time */
+	public static short[] getHeightAndDepth(int arrayLength)
+	{
+		if (!heightAndDepthMap.containsKey(Thread.currentThread().getName()) || (heightAndDepthMap.get(Thread.currentThread().getName()) == null))
+		{
+			heightAndDepthMap.put(Thread.currentThread().getName(), new short[arrayLength]);
+		}
+		return heightAndDepthMap.get(Thread.currentThread().getName());
+	}
+	
+	
+	/** returns the array filled with 0's */
+	public static long[] getVerticalUpdateArray(int detailLevel)
+	{
+		if (!verticalUpdate.containsKey(Thread.currentThread().getName()) || (verticalUpdate.get(Thread.currentThread().getName()) == null))
+		{
+			long[][] array = new long[DETAIL_OPTIONS][];
+			for (int i = 1; i < DETAIL_OPTIONS; i++)
+				array[i] = new long[DetailDistanceUtil.getMaxVerticalData(i - 1) * 4];
+			verticalUpdate.put(Thread.currentThread().getName(), array);
+		}
+		else
+		{
+			Arrays.fill(verticalUpdate.get(Thread.currentThread().getName())[detailLevel], 0);
+		}
+		return verticalUpdate.get(Thread.currentThread().getName())[detailLevel];
+	}
+	
+	/** clears all arrays so they will have to be rebuilt */
+	public static void clearMaps()
+	{
+		adjShadeDisabled.clear();
+		adjDataMap.clear();
+		boxMap.clear();
+		threadSingleUpdateMap.clear();
+		threadBuilderArrayMap.clear();
+		threadBuilderVerticalArrayMap.clear();
+		threadVerticalAddDataMap.clear();
+		saveContainer.clear();
+		projectionArrayMap.clear();
+		heightAndDepthMap.clear();
+		singleDataToMergeMap.clear();
+		verticalUpdate.clear();
+	}
+}
@@ -0,0 +1,238 @@
+/*
+ *    This file is part of the Distant Horizon mod (formerly the LOD Mod),
+ *    licensed under the GNU GPL v3 License.
+ *
+ *    Copyright (C) 2020  James Seibel
+ *
+ *    This program is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, version 3.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.seibel.lod.wrappers;
+
+import java.awt.Color;
+import java.io.File;
+
+import com.seibel.lod.util.LodUtil;
+
+import net.minecraft.client.GameSettings;
+import net.minecraft.client.MainWindow;
+import net.minecraft.client.Minecraft;
+import net.minecraft.client.entity.player.ClientPlayerEntity;
+import net.minecraft.client.multiplayer.ServerData;
+import net.minecraft.client.network.play.ClientPlayNetHandler;
+import net.minecraft.client.renderer.GameRenderer;
+import net.minecraft.client.renderer.LightTexture;
+import net.minecraft.client.renderer.WorldRenderer;
+import net.minecraft.client.renderer.model.ModelManager;
+import net.minecraft.client.renderer.texture.NativeImage;
+import net.minecraft.client.world.ClientWorld;
+import net.minecraft.entity.Entity;
+import net.minecraft.profiler.IProfiler;
+import net.minecraft.server.integrated.IntegratedServer;
+import net.minecraft.util.Direction;
+import net.minecraft.world.DimensionType;
+
+/**
+ * A singleton that wraps the Minecraft class
+ * to allow for easier movement between Minecraft versions.
+ * 
+ * @author James Seibel
+ * @version 9-16-2021
+ */
+public class MinecraftWrapper
+{
+	public static final MinecraftWrapper INSTANCE = new MinecraftWrapper();
+	
+	private final Minecraft mc = Minecraft.getInstance();
+	
+	/**
+	 * The lightmap for the current:
+	 * Time, dimension, brightness setting, etc.
+	 */
+	private NativeImage lightMap = null;
+	
+	private MinecraftWrapper()
+	{
+		
+	}
+	
+	
+	
+	//================//
+	// helper methods //
+	//================//
+	
+	/**
+	 * This should be called at the beginning of every frame to
+	 * clear any Minecraft data that becomes out of date after a frame. <br> <br>
+	 * <p>
+	 * LightMaps and other time sensitive objects fall in this category. <br> <br>
+	 * <p>
+	 * This doesn't affect OpenGL objects in any way.
+	 */
+	public void clearFrameObjectCache()
+	{
+		lightMap = null;
+	}
+	
+	
+	
+	//=================//
+	// method wrappers //
+	//=================//
+	
+	public float getShading(Direction direction)
+	{
+		return mc.level.getShade(Direction.UP, true);
+	}
+	
+	public boolean hasSinglePlayerServer()
+	{
+		return mc.hasSingleplayerServer();
+	}
+	
+	public DimensionType getCurrentDimension()
+	{
+		return mc.player.level.dimensionType();
+	}
+	
+	public String getCurrentDimensionId()
+	{
+		return LodUtil.getDimensionIDFromWorld(mc.level);
+	}
+	
+	/**
+	 * This texture changes every frame
+	 */
+	public NativeImage getCurrentLightMap()
+	{
+		// get the current lightMap if the cache is empty
+		if (lightMap == null)
+		{
+			LightTexture tex = mc.gameRenderer.lightTexture();
+			lightMap = tex.lightPixels;
+		}
+		return lightMap;
+	}
+	
+	/**
+	 * Returns the color int at the given pixel coordinates
+	 * from the current lightmap.
+	 * @param u x location in texture space
+	 * @param v z location in texture space
+	 */
+	public int getColorIntFromLightMap(int u, int v)
+	{
+		if (lightMap == null)
+		{
+			// make sure the lightMap is up-to-date
+			getCurrentLightMap();
+		}
+		
+		return lightMap.getPixelRGBA(u, v);
+	}
+	
+	/**
+	 * Returns the Color at the given pixel coordinates
+	 * from the current lightmap.
+	 * @param u x location in texture space
+	 * @param v z location in texture space
+	 */
+	public Color getColorFromLightMap(int u, int v)
+	{
+		return LodUtil.intToColor(lightMap.getPixelRGBA(u, v));
+	}
+	
+	
+	
+	
+	//=============//
+	// Simple gets //
+	//=============//
+	
+	public ClientPlayerEntity getPlayer()
+	{
+		return mc.player;
+	}
+	
+	public GameSettings getOptions()
+	{
+		return mc.options;
+	}
+	
+	public ModelManager getModelManager()
+	{
+		return mc.getModelManager();
+	}
+	
+	public ClientWorld getClientWorld()
+	{
+		return mc.level;
+	}
+	
+	/** Measured in chunks */
+	public int getRenderDistance()
+	{
+		return mc.options.renderDistance;
+	}
+	
+	public File getGameDirectory()
+	{
+		return mc.gameDirectory;
+	}
+	
+	public IProfiler getProfiler()
+	{
+		return mc.getProfiler();
+	}
+	
+	public ClientPlayNetHandler getConnection()
+	{
+		return mc.getConnection();
+	}
+	
+	public GameRenderer getGameRenderer()
+	{
+		return mc.gameRenderer;
+	}
+	
+	public Entity getCameraEntity()
+	{
+		return mc.cameraEntity;
+	}
+	
+	public MainWindow getWindow()
+	{
+		return mc.getWindow();
+	}
+	
+	public float getSkyDarken(float partialTicks)
+	{
+		return mc.level.getSkyDarken(partialTicks);
+	}
+	
+	public IntegratedServer getSinglePlayerServer()
+	{
+		return mc.getSingleplayerServer();
+	}
+	
+	public ServerData getCurrentServer()
+	{
+		return mc.getCurrentServer();
+	}
+	
+	public WorldRenderer getLevelRenderer()
+	{
+		return mc.levelRenderer;
+	}
+}
@@ -16,6 +16,41 @@ public net.minecraft.world.storage.DimensionSavedDataManager field_215759_d # fo
 # used when generating LodChunks
 public net.minecraft.block.AbstractBlock$AbstractBlockState field_235704_h_ # materialColor

+# used when determining which chunks Vanilla Minecraft is going to render
+public net.minecraft.client.renderer.WorldRenderer$LocalRenderInformationContainer
+public net.minecraft.client.renderer.WorldRenderer field_72755_R # renderInfos
+public net.minecraft.client.renderer.WorldRenderer$LocalRenderInformationContainer field_178036_a # renderChunk
+
+# used in world generation
+public net.minecraft.world.server.ServerWorld field_241106_P_ # structuremanager
+public net.minecraft.world.gen.Heightmap func_202267_b(II)I # getDataArrayIndex
+public net.minecraft.world.gen.Heightmap func_202272_a(III)V # set
+public net.minecraft.world.chunk.Chunk field_76634_f # heightMap
+public net.minecraft.world.chunk.Chunk field_76652_q # sections
+public net.minecraft.world.chunk.ChunkPrimer field_201661_i # sections
+public net.minecraft.world.server.ChunkManager field_219269_w # templateManager
+public net.minecraft.world.server.ChunkManager field_219256_j # lightManager
+public net.minecraft.world.gen.feature.template.TemplateManager field_186240_a # templates
+public net.minecraft.world.biome.Biome field_242424_k # biomeGenerationSettings
+public net.minecraft.world.gen.blockstateprovider.WeightedBlockStateProvider field_227406_b_ # weightedStates
+public net.minecraft.world.gen.placement.ConfiguredPlacement field_215096_a # decorator
+public net.minecraft.world.gen.placement.ConfiguredPlacement field_215097_b # config
+public net.minecraft.util.WeightedList field_220658_a # weightedEntries
+public net.minecraft.world.gen.feature.FeatureSpread field_242250_b # base
+public net.minecraft.world.gen.feature.FeatureSpread field_242251_c # spread
+public net.minecraft.world.gen.feature.ConfiguredFeature func_242765_a(Lnet/minecraft/world/ISeedReader;Lnet/minecraft/world/gen/ChunkGenerator;Ljava/util/Random;Lnet/minecraft/util/math/BlockPos;)Z # place
+public net.minecraft.world.server.ServerChunkProvider field_217244_j # dataStorage
+public net.minecraft.world.lighting.WorldLightManager field_215576_a # blockEngine
+public net.minecraft.world.lighting.WorldLightManager field_215577_b # skyEngine
+public net.minecraft.world.gen.feature.Feature field_236290_a_ # configuredCodec
+
+# used for uploading vertex buffers off the render thread
+public net.minecraft.client.renderer.vertex.VertexBuffer field_177365_a # id
+public net.minecraft.client.renderer.vertex.VertexBuffer field_177363_b # format
+public net.minecraft.client.renderer.vertex.VertexBuffer field_177364_c # vertexCount
+
+# used for accessing the lightmap
+public net.minecraft.client.renderer.LightTexture field_205111_b # lightPixels


 #=====================#
@@ -7,14 +7,14 @@
 modLoader="javafml" #mandatory

 #// A version range to match for said mod loader - for regular FML @Mod it will be the forge version
-loaderVersion="[35,)" #mandatory This is typically bumped every Minecraft version by Forge. See our download page for lists of versions.
+loaderVersion="[36,)" #mandatory This is typically bumped every Minecraft version by Forge. See our download page for lists of versions.

 #// The license for you mod. This is mandatory metadata and allows for easier comprehension of your redistributive properties.
 #// Review your options at https://choosealicense.com/. All rights reserved is the default copyright stance, and is thus the default here.
-license="All rights reserved"
+license="GNU GPLv3"

 #// A URL to refer people to when problems occur with this mod
-#//issueTrackerURL="https://change.me.to.your.issue.tracker.example.invalid/" #optional
+issueTrackerURL="https://gitlab.com/jeseibel/minecraft-lod-mod/-/issues" #optional
 #// A list of mods - how many allowed here is determined by the individual mod loader
 [[mods]] #mandatory

@@ -24,27 +24,25 @@ modId="lod" #mandatory
 #// The version number of the mod - there's a few well known ${} variables useable here or just hardcode it
 #//${file.jarVersion} will substitute the value of the Implementation-Version as read from the mod's JAR file metadata
 #// see the associated build.gradle script for how to populate this completely automatically during a build
-version="a1.2" #mandatory
+version="a1.5.0" #mandatory

 #// A display name for the mod
-displayName="Levels of Detail" #mandatory
+displayName="Distant Horizons" #mandatory

 #// A URL to query for updates for this mod. See the JSON update specification https://mcforge.readthedocs.io/en/latest/gettingstarted/autoupdate/
 #//updateJSONURL="https://change.me.example.invalid/updates.json" #optional

 #// A URL for the "homepage" for this mod, displayed in the mod UI
-#//displayURL="https://change.me.to.your.mods.homepage.example.invalid/" #optional
+displayURL="https://www.curseforge.com/minecraft/mc-mods/lod-level-of-detail" #optional

 #// A file name (in the root of the mod JAR) containing a logo for display
-#//logoFile="examplemod.png" #optional
+logoFile="logo.png" #optional

 #// A text field displayed in the mod UI
 credits="TechnoVision, Vike, and Darkhax for their modding tutorials." #optional

 #// A text field displayed in the mod UI
-authors="James Seibel" #optional
+authors="James Seibel, Leonardo Amato, and Cola" #optional

 #// The description text for the mod (multi line!) (#mandatory)
-description='''
-This mod generates and renders simplified chunks beyond the normal view distance, at a low performance cost.
-'''
+description='''This mod generates and renders simplified terrain beyond the normal view distance, at a low performance cost.'''
@@ -1,16 +0,0 @@
-[
-{
-  "modid": "lod",
-  "name": "Level Of Details",
-  "description": "Generates and renders simplified chunks beyond the normal view distance, at a low performance cost.",
-  "version": "a1.2",
-  "mcversion": "1.16.4",
-  "url": "",
-  "updateUrl": "",
-  "authorList": ["James Seibel"],
-  "credits": "TechnoVision, Vike, and Darkhax for their modding tutorials.",
-  "logoFile": "",
-  "screenshots": [],
-  "dependencies": []
-}
-]
--- a/Show More
+++ b/Show More