fix debug wireframes not rendering

Done to fix underwater/blindness rendering

.gitlab-ci.yml

@@ -3,7 +3,6 @@
 image: eclipse-temurin:21
 
 # all stages need to be defined here
-# TODO: Make stages depend on what is in versionProperties
 stages:
   - build
   - api

build.gradle

@@ -204,15 +204,6 @@ subprojects { p ->
                 developmentForge.extendsFrom coreProjects
             if (findProject(":neoforge"))
                 developmentNeoForge.extendsFrom coreProjects
-
-            // TODO remove unused fabricLike
-            if (findProject(":fabricLike") && p != project(":fabricLike")) {
-                // Shadow fabricLike
-                fabricLike
-                shadowFabricLike
-                compileClasspath.extendsFrom fabricLike
-                runtimeClasspath.extendsFrom fabricLike
-            }
         }
     }
 
@@ -277,11 +268,6 @@ subprojects { p ->
         // Netty
         implementation("io.netty:netty-buffer:${rootProject.netty_version}")
 
-        // Remember, for lwjgl dependencies that arent included in Minecraft, you need to also need to add it to the ShadowJar thing
-        forgeShadowMe("org.lwjgl:lwjgl-jawt:${rootProject.lwjgl_version}") {
-            exclude group: "org.lwjgl", module: "lwjgl" // This module is imported by Minecraft so exclude it
-        }
-        
         
         
         //==========================//
@@ -318,12 +304,6 @@ subprojects { p ->
             // Common
             common(project(":common")) { transitive false }
             shadowCommon(project(":common")) { transitive false }
-
-            // FabricLike
-            if (findProject(":fabricLike") && p != project(":fabricLike")) {
-                fabricLike(project(path: ":fabricLike")) { transitive false }
-                shadowFabricLike(project(path: ":fabricLike")) { transitive false }
-            }
         }
     }
 
@@ -333,18 +313,9 @@ subprojects { p ->
         if (isMinecraftSubProject && p != project(":common")) {
             configurations.push(project.configurations.shadowCommon) // Shadow the common subproject
             relocate "com.seibel.distanthorizons.common", "loaderCommon.${p.name}.com.seibel.distanthorizons.common" // Move the loader files to a different location
-        
-            if (findProject(":fabricLike") && p != project(":fabricLike")) {
-                configurations.push(project.configurations.shadowFabricLike) // Shadow the fabricLike subproject
-                relocate "com.seibel.distanthorizons.fabriclike", "loaderCommon.${p.name}.com.seibel.distanthorizons.fabriclike" // Move the loader files to a different location
-            }
         }
         def librariesLocation = "DistantHorizons.libraries"
         
-        // LWJGL
-        // Only ever shadow the dependencies we use otherwise some stuff would break when running on an external client
-        relocate "org.lwjgl.system.jawt", "${librariesLocation}.lwjgl.system.jawt"
-
         // Compression (LZ4)
         relocate "net.jpountz", "${librariesLocation}.jpountz"
         
@@ -394,9 +365,6 @@ subprojects { p ->
         // NightConfig (includes Toml & Json)
         relocate "com.electronwill.nightconfig", "${librariesLocation}.electronwill.nightconfig"
 
-        // SVG (not needed atm)
-//        relocate "com.kitfox.svg", "${librariesLocation}.kitfox.svg"
-        
         // Netty
         // Don't relocate, it causes problems with using MC's FriendlyByteBufs
 //        relocate "io.netty", "${librariesLocation}.netty"
@@ -408,10 +376,10 @@ subprojects { p ->
 
 
     // Put stuff from gradle.properties into the mod info
+    // Note: these resources are only included in the mod jars, the core and API jars don't include these files
     processResources {
         def resourceTargets = [ // Location of where to inject the properties
                                 // Holds info like git commit
-                                // TODO: For some reason this script doesnt work with the core project
                                 "build_info.json",
 
                                 // Properties for each of the loaders
@@ -421,7 +389,7 @@ subprojects { p ->
                                 "META-INF/neoforge.mods.toml",
 
                                 // The mixins for each of the loaders
-                                "DistantHorizons."+ p.name +".fabricLike.mixins.json"
+                                //"DistantHorizons."+ p.name +".fabricLike.mixins.json"
         ]
         def intoTargets = ["$buildDir/resources/main/"] // Location of the built resources folder
 
@@ -441,9 +409,6 @@ subprojects { p ->
         quilt_contributors.reverse()
         //println quilt_contributors.join(", ")
 
-        // TODO: Find something we can use so we can basically re-map only when the jar is shadowed and relocated
-//        println p.tasks.findByName('shadowJar')
-
         
         // These "hasProperty"'s are so that they can be passed through the cli (ie in the CI)
         try {
@@ -505,13 +470,8 @@ subprojects { p ->
 
 
         // ==================== Delete un-needed files ====================
-        exclude "DistantHorizons.fabricLike.mixins.json" // This isnt required atm, but we will be using it later
-
-//        exclude "*.distanthorizons.accesswidener"
-////        include "${accessWidenerVersion}.distanthorizons.accesswidener"
-
         // Jank solution to remove all unused accesswideners
-        // The line above would work..., except that (neo)forge (well, mainly architectury) requires the original accesswidener file, meaning we require this jank solution to keep it
+        // (neo)forge (well, mainly architectury) requires the original accesswidener file, meaning we require this jank solution to keep it
         exclude { file ->
             if (file.name.contains(".distanthorizons.accesswidener") && file.name != "${accessWidenerVersion}.distanthorizons.accesswidener") {
                 return true
@@ -654,7 +614,6 @@ allprojects { p ->
                 includeGroup "forge-mod"
             }
         }
-        // TODO: If neoforged is ever needed, should we use that, or call it a forge mod?
     }
 
     // Adds some dependencies that are in vanilla but not in core
@@ -664,23 +623,27 @@ allprojects { p ->
          // Set the OS lwjgl is using to the current os
         project.ext.lwjglNatives = "natives-" + os.toFamilyName()
 
-        dependencies { // All of these dependencies are in Vanilla Minecraft, but we need to depend on it as we arent importing Minecraft in the core
+        dependencies { 
-            // Imports most of lwjgl's libraries (well, only the ones that we need)
+            // All of these dependencies are in Vanilla Minecraft, but we need to depend on them as we arent importing Minecraft in the core
-            implementation platform("org.lwjgl:lwjgl-bom:${rootProject.lwjgl_version}") // TODO: Use Minecraft's version for lwjgl_version (which changes in nearly every version) instead of a hard defined version for all versions
             
-            // REMEMBER: Dont shadow stuff here, these are just the libs that are included in Minecraft so that the core can use
+            // Imports most of lwjgl's libraries
+            implementation platform("org.lwjgl:lwjgl-bom:${rootProject.lwjgl_version}")
+
+            // REMEMBER: Don't shadow stuff here, these are just the libs that are included in Minecraft so that the core can use them
             implementation "org.lwjgl:lwjgl"
             implementation "org.lwjgl:lwjgl-assimp"
             implementation "org.lwjgl:lwjgl-glfw"
-            implementation "org.lwjgl:lwjgl-openal"
+            // OpenGL is removed since DH now handles rendering in the "Common" project
-            implementation "org.lwjgl:lwjgl-opengl"
+            // so we can use OpenGL for old MC versions and Blaze3D (IE Vulkan) for newer ones
+//            implementation "org.lwjgl:lwjgl-openal"
+//            implementation "org.lwjgl:lwjgl-opengl"
             implementation "org.lwjgl:lwjgl-stb"
             implementation "org.lwjgl:lwjgl-tinyfd"
             runtimeOnly "org.lwjgl:lwjgl::$lwjglNatives"
             runtimeOnly "org.lwjgl:lwjgl-assimp::$lwjglNatives"
             runtimeOnly "org.lwjgl:lwjgl-glfw::$lwjglNatives"
-            runtimeOnly "org.lwjgl:lwjgl-openal::$lwjglNatives"
+//            runtimeOnly "org.lwjgl:lwjgl-openal::$lwjglNatives"
-            runtimeOnly "org.lwjgl:lwjgl-opengl::$lwjglNatives"
+//            runtimeOnly "org.lwjgl:lwjgl-opengl::$lwjglNatives"
             runtimeOnly "org.lwjgl:lwjgl-stb::$lwjglNatives"
             runtimeOnly "org.lwjgl:lwjgl-tinyfd::$lwjglNatives"
             implementation "org.joml:joml:${rootProject.joml_version}"
@@ -699,14 +662,6 @@ allprojects { p ->
         from project(":common").file("src/main/resources/${accessWidenerVersion}.distanthorizons.accesswidener")
         into(file(p.file("build/resources/main")))
         rename "${accessWidenerVersion}.distanthorizons.accesswidener", "distanthorizons.accesswidener"
-
-
-        // Move the fabricLike mixin to its different places for each subproject
-        if (findProject(":fabricLike")) {
-            from project(":fabricLike").file("src/main/resources/DistantHorizons.fabricLike.mixins.json")
-            into(file(p.file("build/resources/main")))
-            rename "DistantHorizons.fabricLike.mixins.json", "DistantHorizons." + p.name + ".fabricLike.mixins.json"
-        }
     }
 
     task copyCoreResources(type: Copy) {
@@ -719,7 +674,6 @@ allprojects { p ->
             options.release = rootProject.java_version as Integer
         } else {
             options.release = 8; // Core & Api should use Java 8 no matter what
-            //options.release = rootProject.java_version as Integer // But if you want to test some stuff, then this can be enabled
         }
         options.encoding = "UTF-8"
     }

common/src/main/java/com/seibel/distanthorizons/common/AbstractModInitializer.java

@@ -1,6 +1,7 @@
 package com.seibel.distanthorizons.common;
 
 import com.mojang.brigadier.CommandDispatcher;
+import com.seibel.distanthorizons.api.enums.config.EDhApiRenderApi;
 import com.seibel.distanthorizons.api.methods.events.abstractEvents.DhApiAfterDhInitEvent;
 import com.seibel.distanthorizons.api.methods.events.abstractEvents.DhApiBeforeDhInitEvent;
 import com.seibel.distanthorizons.common.commands.CommandInitializer;
@@ -18,6 +19,10 @@ import com.seibel.distanthorizons.core.enums.MinecraftTextFormat;
 import com.seibel.distanthorizons.core.jar.ModJarInfo;
 import com.seibel.distanthorizons.core.jar.updater.SelfUpdater;
 import com.seibel.distanthorizons.core.logging.DhLoggerBuilder;
+import com.seibel.distanthorizons.core.util.NativeDialogUtil;
+import com.seibel.distanthorizons.core.wrapperInterfaces.IVersionConstants;
+import com.seibel.distanthorizons.core.wrapperInterfaces.minecraft.IMinecraftClientWrapper;
+import com.seibel.distanthorizons.core.wrapperInterfaces.modAccessor.IIrisAccessor;
 import com.seibel.distanthorizons.core.wrapperInterfaces.modAccessor.IModAccessor;
 import com.seibel.distanthorizons.core.wrapperInterfaces.modAccessor.IModChecker;
 import com.seibel.distanthorizons.coreapi.DependencyInjection.ApiEventInjector;
@@ -45,6 +50,7 @@ public abstract class AbstractModInitializer
 	//==================//
 	// abstract methods //
 	//==================//
+	//region
 	
 	protected abstract void createInitialSharedBindings();
 	protected abstract void createInitialClientBindings();
@@ -58,11 +64,14 @@ public abstract class AbstractModInitializer
 	protected abstract void subscribeServerStartingEvent(Consumer<MinecraftServer> eventHandler);
 	protected abstract void runDelayedSetup();
 	
+	//endregion
+	
 	
 	
 	//===================//
 	// initialize events //
 	//===================//
+	//region
 	
 	public void onInitializeClient()
 	{
@@ -93,6 +102,7 @@ public abstract class AbstractModInitializer
 		#endif
 		
 		this.subscribeClientStartedEvent(this::postInit);
+		this.subscribeClientStartedEvent(this::postClientInit);
 	}
 	
 	public void onInitializeServer()
@@ -132,11 +142,14 @@ public abstract class AbstractModInitializer
 		});
 	}
 	
+	//endregion
+	
 	
 	
 	//===========================//
 	// inner initializer methods //
 	//===========================//
+	//region
 	
 	private void startup()
 	{
@@ -209,11 +222,16 @@ public abstract class AbstractModInitializer
 		ApiEventInjector.INSTANCE.fireAllEvents(DhApiAfterDhInitEvent.class, null);
 	}
 	
+	private void postClientInit() { DependencySetup.setRenderingApiBindings(); }
+	
+	//endregion
+	
 	
 	
 	//==================================//
 	// mod partial compatibility checks //
 	//==================================//
+	//region
 	
 	/** 
 	 * Some mods will work with a few tweaks
@@ -231,6 +249,7 @@ public abstract class AbstractModInitializer
 		
 		
 		// Alex's caves
+		//region
 		if (modChecker.isModLoaded("alexscaves"))
 		{
 			// There've been a few reports about this mod breaking DH at a few different points in time
@@ -247,8 +266,10 @@ public abstract class AbstractModInitializer
 			
 			LOGGER.warn(startingString + "[Alex's Caves] may require some config changes in order to render Distant Horizons correctly.");
 		}
+		//endregion
 		
 		// William Wythers' Overhauled Overworld (WWOO)
+		//region
 		if (modChecker.isModLoaded("wwoo"))
 		{
 			// WWOO has a bug with it's world gen that can't be fixed by DH or WWOO
@@ -269,8 +290,11 @@ public abstract class AbstractModInitializer
 			
 			LOGGER.warn(startingString + "[WWOO] "+ wwooWarning);
 		}
+		//endregion
+		
+		// Chunky //
+		//region
 		
-		// Chunky
 		boolean chunkyPresent = false;
 		try
 		{
@@ -300,17 +324,56 @@ public abstract class AbstractModInitializer
 			LOGGER.warn(startingString + "[Chunky] "+ chunkyWarning);
 		}
 		
+		//endregion
+		
+		// iris //
+		//region
+		
+		IIrisAccessor iris = ModAccessorInjector.INSTANCE.get(IIrisAccessor.class);
+		if (iris != null)
+		{
+			// get the currently selected rendering API
+			EDhApiRenderApi renderApi = Config.Client.Advanced.Graphics.Experimental.renderingApi.get();
+			if (renderApi == EDhApiRenderApi.AUTO)
+			{
+				IVersionConstants versionConstants = SingletonInjector.INSTANCE.get(IVersionConstants.class);
+				renderApi = versionConstants.getDefaultRenderingApi();
 			}
 			
+			// Iris only supports nataive OpenGL
+			if (renderApi != EDhApiRenderApi.OPEN_GL)
+			{
+				String irisUnsupportedMessage = "Iris doesn't support DH when using the ["+EDhApiRenderApi.BLAZE_3D+"] rendering API, please change it to ["+EDhApiRenderApi.OPEN_GL+"] in DH's config file.";
+				LOGGER.fatal(irisUnsupportedMessage);
+				NativeDialogUtil.showDialog(ModInfo.READABLE_NAME, irisUnsupportedMessage, "ok", "error");
+				
+				IMinecraftClientWrapper mc = SingletonInjector.INSTANCE.get(IMinecraftClientWrapper.class);
+				String errorMessage = "loading Distant Horizons. "+irisUnsupportedMessage;
+				String exceptionError = "Distant Horizons conditional mod config Exception";
+				mc.crashMinecraft(errorMessage, new Exception(exceptionError));
+			}
+		}
+		
+		//endregion
+		
+	}
+	
+	//endregion
+	
 	
 	
 	//================//
 	// helper classes //
 	//================//
+	//region
 	
 	public interface IEventProxy
 	{
 		void registerEvents();
 	}
 	
+	//endregion
+	
+	
+	
 }

common/src/main/java/com/seibel/distanthorizons/common/commonMixins/DhUpdateScreenBase.java

@@ -0,0 +1,88 @@
+package com.seibel.distanthorizons.common.commonMixins;
+
+import com.seibel.distanthorizons.api.enums.config.EDhApiUpdateBranch;
+import com.seibel.distanthorizons.common.wrappers.gui.updater.UpdateModScreen;
+import com.seibel.distanthorizons.core.config.Config;
+import com.seibel.distanthorizons.core.dependencyInjection.SingletonInjector;
+import com.seibel.distanthorizons.core.jar.installer.GitlabGetter;
+import com.seibel.distanthorizons.core.jar.installer.ModrinthGetter;
+import com.seibel.distanthorizons.core.jar.updater.SelfUpdater;
+import com.seibel.distanthorizons.core.logging.DhLogger;
+import com.seibel.distanthorizons.core.logging.DhLoggerBuilder;
+import com.seibel.distanthorizons.core.wrapperInterfaces.IVersionConstants;
+import net.minecraft.client.Minecraft;
+import net.minecraft.client.gui.screens.TitleScreen;
+
+import java.util.ArrayList;
+
+public class DhUpdateScreenBase
+{
+	private static final DhLogger LOGGER = new DhLoggerBuilder().build();
+	
+	private static final Minecraft MC = Minecraft.getInstance();
+	
+	
+	
+	public static void tryShowUpdateScreenAndRunAutoUpdateStartup(Runnable runnable)
+	{
+		// always needs to be called, otherwise auto update setup won't be completed
+		boolean newUpdateAvailable = SelfUpdater.onStart();
+		if (!newUpdateAvailable)
+		{
+			return;
+		}
+
+		if (!Config.Client.Advanced.AutoUpdater.enableAutoUpdater.get())
+		{
+			LOGGER.info("Auto update disabled, ignoring new version...");
+			return;
+		}
+		
+		
+		runnable = () ->
+		{
+			String versionId;
+			EDhApiUpdateBranch updateBranch = EDhApiUpdateBranch.convertAutoToStableOrNightly(Config.Client.Advanced.AutoUpdater.updateBranch.get());
+			if (updateBranch == EDhApiUpdateBranch.STABLE)
+			{
+				versionId = ModrinthGetter.getLatestIDForVersion(SingletonInjector.INSTANCE.get(IVersionConstants.class).getMinecraftVersion());
+			}
+			else
+			{
+				ArrayList<com.electronwill.nightconfig.core.Config> pipelines = GitlabGetter.INSTANCE.projectPipelines;
+				if (pipelines != null
+					&& pipelines.size() > 0)
+				{
+					versionId = pipelines.get(0).get("sha");
+				}
+				else
+				{
+					versionId = null;
+				}
+			}
+			
+			if (versionId == null)
+			{
+				LOGGER.info("Unable to find new DH update for the ["+updateBranch+"] branch. Assuming DH is up to date...");
+				return;
+			}
+			
+			
+			try
+			{
+				MC.setScreen(new UpdateModScreen(
+					new TitleScreen(false),
+					versionId
+				));
+			}
+			catch (Exception e)
+			{
+				// info instead of error since this can be ignored and probably just means
+				// there isn't a new DH version available
+				LOGGER.info("Unable to show DH update screen, reason: ["+e.getMessage()+"].");
+			}
+		};
+		runnable.run();
+	}
+	
+}

common/src/main/java/com/seibel/distanthorizons/common/commonMixins/MixinChunkMapCommon.java

@@ -4,6 +4,7 @@ import com.seibel.distanthorizons.common.wrappers.chunk.ChunkWrapper;
 import com.seibel.distanthorizons.common.wrappers.world.ServerLevelWrapper;
 import com.seibel.distanthorizons.core.api.internal.ServerApi;
 import com.seibel.distanthorizons.core.api.internal.SharedApi;
+import com.seibel.distanthorizons.core.wrapperInterfaces.world.IServerLevelWrapper;
 import net.minecraft.server.level.ServerLevel;
 import net.minecraft.world.level.chunk.ChunkAccess;
 import org.spongepowered.asm.mixin.injection.callback.CallbackInfoReturnable;
@@ -13,8 +14,10 @@ public class MixinChunkMapCommon
 	
 	public static void onChunkSave(ServerLevel level, ChunkAccess chunk, CallbackInfoReturnable<Boolean> ci)
 	{
+		IServerLevelWrapper levelWrapper = ServerLevelWrapper.getWrapper(level);
+		
 		// is this position already being updated?
-		if (SharedApi.isChunkAtChunkPosAlreadyUpdating(chunk.getPos().x, chunk.getPos().z))
+		if (SharedApi.isChunkAtChunkPosAlreadyUpdating(levelWrapper, chunk.getPos().x, chunk.getPos().z))
 		{
 			return;
 		}
@@ -29,10 +32,6 @@ public class MixinChunkMapCommon
 			return;
 		}
 		
-		// TODO are the following validations necessary since we are checking above if 
-		//  the callback return value should state if the chunk was actually saved or not?
-		//  Do we trust it to always be correct?
-		
 		
 		
 		// corrupt/incomplete chunk validation //
@@ -77,8 +76,8 @@ public class MixinChunkMapCommon
 		
 		// submit the update event
 		ServerApi.INSTANCE.serverChunkSaveEvent(
-				new ChunkWrapper(chunk, ServerLevelWrapper.getWrapper(level)),
+			new ChunkWrapper(chunk, levelWrapper),
-				ServerLevelWrapper.getWrapper(level)
+			levelWrapper
 		);
 	}
 	

common/src/main/java/com/seibel/distanthorizons/common/render/blaze/BlazeDebugWireframeRenderer.java

@@ -0,0 +1,330 @@
+/*
+ *    This file is part of the Distant Horizons mod
+ *    licensed under the GNU LGPL 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 Lesser 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 Lesser General Public License for more details.
+ *
+ *    You should have received a copy of the GNU Lesser General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.seibel.distanthorizons.common.render.blaze;
+
+#if MC_VER <= MC_1_21_10
+public class BlazeDebugWireframeRenderer {}
+
+#else
+
+import com.mojang.blaze3d.buffers.GpuBuffer;
+import com.mojang.blaze3d.buffers.GpuBufferSlice;
+import com.mojang.blaze3d.buffers.Std140Builder;
+import com.mojang.blaze3d.buffers.Std140SizeCalculator;
+import com.mojang.blaze3d.pipeline.RenderPipeline;
+import com.mojang.blaze3d.platform.DepthTestFunction;
+import com.mojang.blaze3d.platform.PolygonMode;
+import com.mojang.blaze3d.shaders.UniformType;
+import com.mojang.blaze3d.systems.CommandEncoder;
+import com.mojang.blaze3d.systems.GpuDevice;
+import com.mojang.blaze3d.systems.RenderPass;
+import com.mojang.blaze3d.systems.RenderSystem;
+import com.mojang.blaze3d.vertex.VertexFormat;
+import com.seibel.distanthorizons.common.render.blaze.util.BlazeUniformUtil;
+import com.seibel.distanthorizons.common.render.blaze.util.BlazeDhVertexFormatUtil;
+import com.seibel.distanthorizons.core.dependencyInjection.SingletonInjector;
+import com.seibel.distanthorizons.core.logging.DhLogger;
+import com.seibel.distanthorizons.core.logging.DhLoggerBuilder;
+import com.seibel.distanthorizons.core.render.renderer.AbstractDebugWireframeRenderer;
+import com.seibel.distanthorizons.core.util.math.Mat4f;
+import com.seibel.distanthorizons.core.util.math.Vec3d;
+import com.seibel.distanthorizons.core.util.math.Vec3f;
+import com.seibel.distanthorizons.core.wrapperInterfaces.minecraft.IMinecraftRenderWrapper;
+import net.minecraft.resources.Identifier;
+import org.lwjgl.system.MemoryUtil;
+
+import java.nio.ByteBuffer;
+import java.nio.ByteOrder;
+import java.util.OptionalDouble;
+import java.util.OptionalInt;
+
+/**
+ * Handles rendering the wireframe particles 
+ * that are used for seeing what the system's doing.
+ */
+public class BlazeDebugWireframeRenderer extends AbstractDebugWireframeRenderer
+{
+	private static final DhLogger LOGGER = new DhLoggerBuilder().build();
+	
+	private static final IMinecraftRenderWrapper MC_RENDER = SingletonInjector.INSTANCE.get(IMinecraftRenderWrapper.class);
+	
+	public static BlazeDebugWireframeRenderer INSTANCE = new BlazeDebugWireframeRenderer();
+	
+	
+	
+	/** A box from 0,0,0 to 1,1,1 */
+	private static final float[] BOX_VERTICES = {
+		//region
+		// Pos x y z
+		0, 0, 0,
+		1, 0, 0,
+		1, 1, 0,
+		0, 1, 0,
+		0, 0, 1,
+		1, 0, 1,
+		1, 1, 1,
+		0, 1, 1,
+		//endregion
+	};
+	
+	private static final int[] BOX_OUTLINE_INDICES = {
+		//region
+		0, 1,
+		1, 2,
+		2, 3,
+		3, 0,
+		
+		4, 5,
+		5, 6,
+		6, 7,
+		7, 4,
+		
+		0, 4,
+		1, 5,
+		2, 6,
+		3, 7,
+		//endregion
+	};
+	
+	
+	
+	
+	// rendering setup
+	private boolean init = false;
+	
+	private RenderPipeline pipeline;
+	
+	private GpuBuffer boxVertexBuffer;
+	private GpuBuffer boxIndexBuffer;
+	
+	private GpuBuffer uniformBuffer;
+	
+	
+	
+	//=============//
+	// constructor //
+	//=============//
+	//region
+	
+	public BlazeDebugWireframeRenderer() { }
+	
+	public void init()
+	{
+		if (this.init)
+		{
+			return;
+		}
+		this.init = true;
+		
+		this.createPipelines();
+		this.createBuffers();
+		
+	}
+	private void createPipelines()
+	{
+		VertexFormat vertexFormat = VertexFormat.builder()
+			.add("vPosition", BlazeDhVertexFormatUtil.FLOAT_XYZ_POS)
+			.build();
+		
+		RenderPipeline.Builder pipelineBuilder = RenderPipeline.builder();
+		{
+			pipelineBuilder.withCull(false);
+			pipelineBuilder.withDepthWrite(false);
+			pipelineBuilder.withDepthTestFunction(DepthTestFunction.LESS_DEPTH_TEST);
+			pipelineBuilder.withColorWrite(true);
+			pipelineBuilder.withoutBlend();
+			pipelineBuilder.withPolygonMode(PolygonMode.WIREFRAME);
+			pipelineBuilder.withLocation(Identifier.parse("distanthorizons:debug_wireframe_renderer"));
+			
+			pipelineBuilder.withVertexShader(Identifier.fromNamespaceAndPath("distanthorizons", "debug/blaze/vert"));
+			pipelineBuilder.withFragmentShader(Identifier.fromNamespaceAndPath("distanthorizons", "debug/blaze/frag"));
+			
+			pipelineBuilder.withUniform("uniformBlock", UniformType.UNIFORM_BUFFER);
+			
+			pipelineBuilder.withVertexFormat(vertexFormat, VertexFormat.Mode.DEBUG_LINES);
+		}
+		this.pipeline = pipelineBuilder.build();
+		
+	}
+	private void createBuffers()
+	{
+		GpuDevice GPU_DEVICE = RenderSystem.getDevice();
+		CommandEncoder COMMAND_ENCODER = GPU_DEVICE.createCommandEncoder();
+		
+		
+		// box vertices 
+		ByteBuffer boxVerticesBuffer = MemoryUtil.memAlloc(BOX_VERTICES.length * Float.BYTES);
+		boxVerticesBuffer.asFloatBuffer().put(BOX_VERTICES);
+		boxVerticesBuffer.rewind();
+		MemoryUtil.memFree(boxVerticesBuffer);
+		
+		// upload vertex data
+		{
+			int usage = GpuBuffer.USAGE_COPY_DST 
+				| GpuBuffer.USAGE_VERTEX;
+			int size = BOX_VERTICES.length * Float.BYTES;
+			this.boxVertexBuffer = GPU_DEVICE.createBuffer(() -> "distantHorizons:McDebugWireframeBox", usage, size);
+			
+			{
+				int length = BOX_VERTICES.length * Float.BYTES;
+				GpuBufferSlice bufferSlice = new GpuBufferSlice(this.boxVertexBuffer, /*offset*/ 0, length);
+				
+				ByteBuffer byteBuffer = ByteBuffer.allocateDirect(BOX_VERTICES.length * Float.BYTES);
+				byteBuffer.order(ByteOrder.nativeOrder());
+				byteBuffer.asFloatBuffer().put(BOX_VERTICES);
+				byteBuffer.rewind();
+				
+				COMMAND_ENCODER.writeToBuffer(bufferSlice, byteBuffer);
+			}
+		}
+		
+		// box vertex indexes
+		{
+			ByteBuffer buffer = ByteBuffer.allocateDirect(BOX_OUTLINE_INDICES.length * Integer.BYTES);
+			buffer.order(ByteOrder.nativeOrder());
+			buffer.asIntBuffer().put(BOX_OUTLINE_INDICES);
+			buffer.rewind();
+			
+			
+			int usage = GpuBuffer.USAGE_COPY_DST 
+				| GpuBuffer.USAGE_VERTEX 
+				| GpuBuffer.USAGE_INDEX
+				| GpuBuffer.USAGE_UNIFORM;
+			this.boxIndexBuffer = GPU_DEVICE.createBuffer(() -> "DH Debug Index Buffer", usage, buffer.capacity());
+			
+			int offset = 0;
+			GpuBufferSlice bufferSlice = new GpuBufferSlice(this.boxIndexBuffer, offset, buffer.capacity());
+			COMMAND_ENCODER.writeToBuffer(bufferSlice, buffer);
+		}
+	}
+	
+	//endregion
+	
+	
+	
+	//===========//
+	// rendering //
+	//===========//
+	//region
+	
+	@Override
+	public void render(Box box)
+	{
+		this.init();
+		
+		if (BlazeDhMetaRenderer.INSTANCE.dhColorTextureWrapper.isEmpty()
+			|| BlazeDhMetaRenderer.INSTANCE.dhDepthTextureWrapper.isEmpty())
+		{
+			return;
+		}
+		
+		// shouldn't happen, but just in case
+		if (box == null)
+		{
+			return;
+		}
+		
+		// delayed getters since this class may be initialized before
+		// the GPU device has been set
+		GpuDevice gpuDevice = RenderSystem.getDevice();
+		CommandEncoder commandEncoder = gpuDevice.createCommandEncoder();
+		
+		
+		
+		// uniforms
+		{
+			int uniformBufferSize = new Std140SizeCalculator()
+				.putMat4f() // uTransform
+				.putVec4() // uColor
+				.get();
+			
+			
+			// create data //
+			
+			Vec3d camPos = MC_RENDER.getCameraExactPosition();
+			Vec3f camPosFloatThisFrame = new Vec3f((float) camPos.x, (float) camPos.y, (float) camPos.z);
+			
+			Mat4f boxTransform = Mat4f.createTranslateMatrix(
+				box.minPos.x - camPosFloatThisFrame.x,
+				box.minPos.y - camPosFloatThisFrame.y,
+				box.minPos.z - camPosFloatThisFrame.z);
+			boxTransform.multiply(Mat4f.createScaleMatrix(
+				box.maxPos.x - box.minPos.x,
+				box.maxPos.y - box.minPos.y,
+				box.maxPos.z - box.minPos.z));
+			
+			Mat4f transformMatrix = this.dhMvmProjMatrixThisFrame.copy();
+			transformMatrix.multiply(boxTransform);
+			
+			
+			// upload data //
+			
+			ByteBuffer buffer = ByteBuffer.allocateDirect(uniformBufferSize);
+			buffer.order(ByteOrder.nativeOrder());
+			buffer = Std140Builder.intoBuffer(buffer)
+				.putMat4f(transformMatrix.createJomlMatrix()) // uTransform
+				.putVec4(
+					box.color.getRed() / 255.0f,
+					box.color.getGreen() / 255.0f,
+					box.color.getBlue() / 255.0f,
+					box.color.getAlpha() / 255.0f) // uColor
+				.get()
+			;
+			
+			this.uniformBuffer = BlazeUniformUtil.createBuffer("uniformBlock", uniformBufferSize, this.uniformBuffer);
+			GpuBufferSlice bufferSlice = new GpuBufferSlice(this.uniformBuffer, 0, uniformBufferSize);
+			
+			commandEncoder.writeToBuffer(bufferSlice, buffer);
+		}
+		
+		
+		
+		// render //
+		
+		try (RenderPass renderPass = commandEncoder.createRenderPass(
+			this::getRenderPassName,
+			BlazeDhMetaRenderer.INSTANCE.dhColorTextureWrapper.textureView, 
+			/*optionalClearColorAsInt*/ OptionalInt.empty(),
+			BlazeDhMetaRenderer.INSTANCE.dhDepthTextureWrapper.textureView, 
+			/*optionalDepthValueAsDouble*/ OptionalDouble.empty()))
+		{
+			// Bind instance data //
+			renderPass.setUniform("uniformBlock", this.uniformBuffer);
+			
+			renderPass.setPipeline(this.pipeline);
+			renderPass.setIndexBuffer(this.boxIndexBuffer, VertexFormat.IndexType.INT);
+			
+			renderPass.setVertexBuffer(0, this.boxVertexBuffer);
+			
+			renderPass.drawIndexed(
+				/*indexStart*/ 0,
+				/*firstIndex*/0,
+				/*indexCount*/BOX_OUTLINE_INDICES.length,
+				/*instanceCount*/1);
+		}
+	}
+	private String getRenderPassName() { return "distantHorizons:McDebugRenderer"; }
+	
+	//endregion
+	
+	
+	
+}
+#endif

common/src/main/java/com/seibel/distanthorizons/common/render/blaze/BlazeDhGenericObjectRenderer.java

@@ -0,0 +1,630 @@
+/*
+ *    This file is part of the Distant Horizons mod
+ *    licensed under the GNU LGPL 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 Lesser 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 Lesser General Public License for more details.
+ *
+ *    You should have received a copy of the GNU Lesser General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.seibel.distanthorizons.common.render.blaze;
+
+#if MC_VER <= MC_1_21_10
+public class BlazeDhGenericObjectRenderer {}
+
+#else
+
+import com.mojang.blaze3d.buffers.GpuBuffer;
+import com.mojang.blaze3d.buffers.GpuBufferSlice;
+import com.mojang.blaze3d.buffers.Std140Builder;
+import com.mojang.blaze3d.buffers.Std140SizeCalculator;
+import com.mojang.blaze3d.pipeline.BlendFunction;
+import com.mojang.blaze3d.pipeline.RenderPipeline;
+import com.mojang.blaze3d.platform.DepthTestFunction;
+import com.mojang.blaze3d.platform.PolygonMode;
+import com.mojang.blaze3d.shaders.UniformType;
+import com.mojang.blaze3d.systems.CommandEncoder;
+import com.mojang.blaze3d.systems.GpuDevice;
+import com.mojang.blaze3d.systems.RenderPass;
+import com.mojang.blaze3d.systems.RenderSystem;
+import com.mojang.blaze3d.vertex.VertexFormat;
+import com.seibel.distanthorizons.api.enums.rendering.EDhApiBlockMaterial;
+import com.seibel.distanthorizons.api.interfaces.render.IDhApiCustomRenderRegister;
+import com.seibel.distanthorizons.api.interfaces.render.IDhApiRenderableBoxGroup;
+import com.seibel.distanthorizons.api.methods.events.abstractEvents.DhApiBeforeGenericObjectRenderEvent;
+import com.seibel.distanthorizons.api.methods.events.abstractEvents.DhApiBeforeGenericRenderCleanupEvent;
+import com.seibel.distanthorizons.api.methods.events.abstractEvents.DhApiBeforeGenericRenderSetupEvent;
+import com.seibel.distanthorizons.api.objects.math.DhApiVec3d;
+import com.seibel.distanthorizons.api.objects.render.DhApiRenderableBox;
+import com.seibel.distanthorizons.api.objects.render.DhApiRenderableBoxGroupShading;
+import com.seibel.distanthorizons.common.render.blaze.objects.BlazeGenericObjectVertexContainer;
+import com.seibel.distanthorizons.common.render.blaze.util.BlazeDhVertexFormatUtil;
+import com.seibel.distanthorizons.common.render.blaze.wrappers.texture.BlazeTextureViewWrapper;
+import com.seibel.distanthorizons.common.render.blaze.util.BlazeUniformUtil;
+import com.seibel.distanthorizons.common.wrappers.misc.LightMapWrapper;
+import com.seibel.distanthorizons.core.dependencyInjection.SingletonInjector;
+import com.seibel.distanthorizons.core.logging.DhLogger;
+import com.seibel.distanthorizons.core.logging.DhLoggerBuilder;
+import com.seibel.distanthorizons.core.logging.f3.F3Screen;
+import com.seibel.distanthorizons.core.render.RenderParams;
+import com.seibel.distanthorizons.core.render.renderer.GenericRenderObjectFactory;
+import com.seibel.distanthorizons.core.wrapperInterfaces.render.objects.IDhGenericObjectVertexBufferContainer;
+import com.seibel.distanthorizons.core.render.renderer.RenderableBoxGroup;
+import com.seibel.distanthorizons.core.util.LodUtil;
+import com.seibel.distanthorizons.core.util.math.Mat4f;
+import com.seibel.distanthorizons.core.util.math.Vec3d;
+import com.seibel.distanthorizons.core.wrapperInterfaces.minecraft.IMinecraftRenderWrapper;
+import com.seibel.distanthorizons.core.wrapperInterfaces.minecraft.IProfilerWrapper;
+import com.seibel.distanthorizons.core.wrapperInterfaces.render.renderPass.IDhGenericRenderer;
+import com.seibel.distanthorizons.coreapi.DependencyInjection.ApiEventInjector;
+import com.seibel.distanthorizons.coreapi.ModInfo;
+import net.minecraft.resources.Identifier;
+
+import java.awt.*;
+import java.nio.ByteBuffer;
+import java.nio.ByteOrder;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.OptionalDouble;
+import java.util.OptionalInt;
+import java.util.concurrent.ConcurrentHashMap;
+
+/**
+ * Handles rendering generic groups of {@link DhApiRenderableBox}.
+ * 
+ * @see IDhApiCustomRenderRegister
+ * @see DhApiRenderableBox
+ */
+public class BlazeDhGenericObjectRenderer implements IDhGenericRenderer
+{
+	private static final DhLogger LOGGER = new DhLoggerBuilder().build();
+	
+	private static final IMinecraftRenderWrapper MC_RENDER = SingletonInjector.INSTANCE.get(IMinecraftRenderWrapper.class);
+	
+	private static final GpuDevice GPU_DEVICE = RenderSystem.getDevice();
+	private static final CommandEncoder COMMAND_ENCODER = GPU_DEVICE.createCommandEncoder();
+	
+	private static final DhApiRenderableBoxGroupShading DEFAULT_SHADING = DhApiRenderableBoxGroupShading.getUnshaded();
+	
+	/** 
+	 * Can be used to troubleshoot the renderer. 
+	 * If enabled several debug objects will render around (0,150,0). 
+	 */
+	public static final boolean RENDER_DEBUG_OBJECTS = false;
+	
+	private final ConcurrentHashMap<Long, RenderableBoxGroup> boxGroupById = new ConcurrentHashMap<>();
+	
+	
+	// rendering setup
+	private boolean init = false;
+	
+	private VertexFormat vertexFormat;
+	
+	private RenderPipeline opaquePipeline;
+	private RenderPipeline transparentPipeline;
+	
+	private GpuBuffer vertUniformBuffer;
+	
+	
+	
+	//=============//
+	// constructor //
+	//=============//
+	//region
+	
+	public BlazeDhGenericObjectRenderer() { }
+	
+	public void init()
+	{
+		if (this.init)
+		{
+			return;
+		}
+		this.init = true;
+		
+		this.vertexFormat = VertexFormat.builder()
+			.add("vPosition", BlazeDhVertexFormatUtil.FLOAT_XYZ_POS)
+			.add("aColor", BlazeDhVertexFormatUtil.RGBA_UBYTE_COLOR)
+			.add("aMaterial", BlazeDhVertexFormatUtil.IRIS_MATERIAL)
+			.build();
+		
+		this.createPipelines();
+		
+		if (RENDER_DEBUG_OBJECTS)
+		{
+			this.addGenericDebugObjects();
+		}
+	}
+	private void createPipelines()
+	{
+		RenderPipeline.Builder pipelineBuilder = RenderPipeline.builder();
+		{
+			pipelineBuilder.withCull(true);
+			pipelineBuilder.withDepthWrite(true);
+			pipelineBuilder.withDepthTestFunction(DepthTestFunction.LESS_DEPTH_TEST);
+			pipelineBuilder.withColorWrite(true);
+			pipelineBuilder.withPolygonMode(PolygonMode.FILL);
+			pipelineBuilder.withLocation(Identifier.parse("distanthorizons:generic"));
+			
+			pipelineBuilder.withVertexShader(Identifier.fromNamespaceAndPath("distanthorizons", "generic/blaze/vert"));
+			pipelineBuilder.withFragmentShader(Identifier.fromNamespaceAndPath("distanthorizons", "generic/blaze/frag"));
+			
+			pipelineBuilder.withSampler("uLightMap");
+			
+			pipelineBuilder.withUniform("vertUniformBlock", UniformType.UNIFORM_BUFFER);
+			
+			pipelineBuilder.withVertexFormat(this.vertexFormat, VertexFormat.Mode.TRIANGLES);
+		}
+		
+		// opaque
+		{
+			pipelineBuilder.withoutBlend();
+			this.opaquePipeline = pipelineBuilder.build();
+		}
+		
+		// transparent
+		{
+			pipelineBuilder.withBlend(BlendFunction.TRANSLUCENT);
+			this.transparentPipeline = pipelineBuilder.build();
+		}
+		
+	}
+	private void addGenericDebugObjects()
+	{
+		GenericRenderObjectFactory factory = GenericRenderObjectFactory.INSTANCE;
+		
+		
+		// single giant box
+		IDhApiRenderableBoxGroup singleGiantBoxGroup = factory.createForSingleBox(
+				ModInfo.NAME + ":CyanChunkBox",
+				new DhApiRenderableBox(
+						new DhApiVec3d(0,0,0), new DhApiVec3d(16,190,16),
+						new Color(Color.CYAN.getRed(), Color.CYAN.getGreen(), Color.CYAN.getBlue(), 125),
+						EDhApiBlockMaterial.WATER)
+		);
+		singleGiantBoxGroup.setSkyLight(LodUtil.MAX_MC_LIGHT);
+		singleGiantBoxGroup.setBlockLight(LodUtil.MAX_MC_LIGHT);
+		this.add(singleGiantBoxGroup);
+
+
+		// single slender box
+		IDhApiRenderableBoxGroup singleTallBoxGroup = factory.createForSingleBox(
+				ModInfo.NAME + ":GreenBeacon",
+				new DhApiRenderableBox(
+						new DhApiVec3d(16,0,31), new DhApiVec3d(17,2000,32),
+						new Color(Color.GREEN.getRed(), Color.GREEN.getGreen(), Color.GREEN.getBlue(), 125),
+						EDhApiBlockMaterial.ILLUMINATED)
+		);
+		singleTallBoxGroup.setSkyLight(LodUtil.MAX_MC_LIGHT);
+		singleTallBoxGroup.setBlockLight(LodUtil.MAX_MC_LIGHT);
+		this.add(singleTallBoxGroup);
+
+
+		// absolute box group
+		ArrayList<DhApiRenderableBox> absBoxList = new ArrayList<>();
+		for (int i = 0; i < 18; i++)
+		{
+			absBoxList.add(new DhApiRenderableBox(
+					new DhApiVec3d(i,150+i,24), new DhApiVec3d(1+i,151+i,25),
+					new Color(Color.ORANGE.getRed(), Color.ORANGE.getGreen(), Color.ORANGE.getBlue()),
+					EDhApiBlockMaterial.LAVA
+				)
+			);
+		}
+		IDhApiRenderableBoxGroup absolutePosBoxGroup = factory.createAbsolutePositionedGroup(ModInfo.NAME + ":OrangeStairs", absBoxList);
+		this.add(absolutePosBoxGroup);
+
+
+		// relative box group
+		ArrayList<DhApiRenderableBox> relBoxList = new ArrayList<>();
+		for (int i = 0; i < 8; i+=2)
+		{
+			relBoxList.add(new DhApiRenderableBox(
+					new DhApiVec3d(0,i,0), new DhApiVec3d(1,1+i,1),
+					new Color(Color.MAGENTA.getRed(), Color.MAGENTA.getGreen(), Color.MAGENTA.getBlue()),
+					EDhApiBlockMaterial.METAL
+				)
+			);
+		}
+		IDhApiRenderableBoxGroup relativePosBoxGroup = factory.createRelativePositionedGroup(
+				ModInfo.NAME + ":MovingMagentaGroup",
+				new DhApiVec3d(24, 140, 24),
+				relBoxList);
+		relativePosBoxGroup.setPreRenderFunc((event) ->
+		{
+			DhApiVec3d pos = relativePosBoxGroup.getOriginBlockPos();
+			pos.x += event.partialTicks / 2;
+			pos.x %= 32;
+			relativePosBoxGroup.setOriginBlockPos(pos);
+		});
+		this.add(relativePosBoxGroup);
+
+
+		// massive relative box group
+		ArrayList<DhApiRenderableBox> massRelBoxList = new ArrayList<>();
+		for (int x = 0; x < 50*2; x+=2)
+		{
+			for (int z = 0; z < 50*2; z+=2)
+			{
+				massRelBoxList.add(new DhApiRenderableBox(
+						new DhApiVec3d(-x, 0, -z), new DhApiVec3d(1-x, 1, 1-z),
+						new Color(Color.RED.getRed(), Color.RED.getGreen(), Color.RED.getBlue()),
+						EDhApiBlockMaterial.TERRACOTTA
+					)
+				);
+			}
+		}
+		IDhApiRenderableBoxGroup massRelativePosBoxGroup = factory.createRelativePositionedGroup(
+				ModInfo.NAME + ":MassRedGroup",
+				new DhApiVec3d(-25, 140, 0),
+				massRelBoxList);
+		massRelativePosBoxGroup.setPreRenderFunc((event) ->
+		{
+			DhApiVec3d blockPos = massRelativePosBoxGroup.getOriginBlockPos();
+			blockPos.y += event.partialTicks / 4;
+			if (blockPos.y > 150f)
+			{
+				blockPos.y = 140f;
+
+				Color newColor = (massRelativePosBoxGroup.get(0).color == Color.RED) ? Color.RED.darker() : Color.RED;
+				massRelativePosBoxGroup.forEach((box) -> { box.color = newColor; });
+				massRelativePosBoxGroup.triggerBoxChange();
+			}
+
+			massRelativePosBoxGroup.setOriginBlockPos(blockPos);
+		});
+		this.add(massRelativePosBoxGroup);
+	}
+	
+	//endregion
+	
+	
+	
+	//==============//
+	// registration //
+	//==============//
+	//region
+	
+	@Override
+	public void add(IDhApiRenderableBoxGroup iBoxGroup) throws IllegalArgumentException 
+	{
+		if (!(iBoxGroup instanceof RenderableBoxGroup))
+		{
+			throw new IllegalArgumentException("Box group must be of type ["+ RenderableBoxGroup.class.getSimpleName()+"], type received: ["+(iBoxGroup != null ? iBoxGroup.getClass() : "NULL")+"].");
+		}
+		RenderableBoxGroup boxGroup = (RenderableBoxGroup) iBoxGroup;
+		
+		
+		long id = boxGroup.getId();
+		if (this.boxGroupById.containsKey(id))
+		{
+			throw new IllegalArgumentException("A box group with the ID [" + id + "] is already present.");
+		}
+		
+		this.boxGroupById.put(id, boxGroup);
+	}
+	
+	@Override
+	public IDhApiRenderableBoxGroup remove(long id) { return this.boxGroupById.remove(id); }
+	
+	public void clear() { this.boxGroupById.clear(); }
+	
+	//endregion
+	
+	
+	
+	//===========//
+	// rendering //
+	//===========//
+	//region
+	
+	/**
+	 * @param renderingWithSsao 
+	 *      if true that means this render call is happening before the SSAO pass
+     *      and any objects rendered in this pass will have SSAO applied to them.
+	 */
+	@Override
+	public void render(RenderParams renderEventParam, IProfilerWrapper profiler, boolean renderingWithSsao)
+	{
+		//==============//
+		// render setup //
+		//==============//
+		//#region
+		
+		profiler.push("setup");
+		
+		this.init();
+		
+		ApiEventInjector.INSTANCE.fireAllEvents(DhApiBeforeGenericRenderSetupEvent.class, renderEventParam);
+		
+		Vec3d camPos = MC_RENDER.getCameraExactPosition();
+		
+		//#endregion
+		
+		if (BlazeDhMetaRenderer.INSTANCE.dhColorTextureWrapper.isEmpty()
+			|| BlazeDhMetaRenderer.INSTANCE.dhDepthTextureWrapper.isEmpty())
+		{
+			return;
+		}
+		
+		
+		
+		//===========//
+		// rendering //
+		//===========//
+		//#region
+		
+		Collection<RenderableBoxGroup> boxList = this.boxGroupById.values();
+		for (RenderableBoxGroup boxGroup : boxList)
+		{
+			// validation //
+			
+			// shouldn't happen, but just in case
+			if (boxGroup == null)
+			{
+				continue;
+			}
+			
+			// skip boxes that shouldn't render this pass
+			if (boxGroup.ssaoEnabled != renderingWithSsao)
+			{
+				continue;
+			}
+			
+			profiler.popPush("render prep");
+			boxGroup.preRender(renderEventParam); // called even if the group is inactive, so the group can be activate if desired
+			
+			// ignore inactive groups
+			if (!boxGroup.active)
+			{
+				continue;
+			}
+			
+			// allow API users to cancel this object's rendering
+			boolean cancelRendering = ApiEventInjector.INSTANCE.fireAllEvents(DhApiBeforeGenericObjectRenderEvent.class, new DhApiBeforeGenericObjectRenderEvent.EventParam(renderEventParam, boxGroup));
+			if (cancelRendering)
+			{
+				continue;
+			}
+			
+			// update instanced data if needed
+			{
+				boxGroup.tryUpdateInstancedDataAsync();
+				
+				// skip groups that haven't been uploaded yet
+				if (boxGroup.vertexBufferContainer.getState() != IDhGenericObjectVertexBufferContainer.EState.RENDER)
+				{
+					continue;
+				}
+			}
+			
+			
+			DhApiRenderableBoxGroupShading shading = boxGroup.shading;
+			if (shading == null)
+			{
+				shading = DEFAULT_SHADING;
+			}
+			
+			// uniforms
+			{
+				int uniformBufferSize = new Std140SizeCalculator()
+					.putIVec3() // uOffsetChunk
+					.putVec3() // uOffsetSubChunk
+					.putIVec3() // uCameraPosChunk
+					.putVec3() // uCameraPosSubChunk
+					
+					.putVec3() // aTranslateChunk
+					.putVec3() // aTranslateSubChunk
+					
+					.putMat4f() // uProjectionMvm
+					.putInt() // uSkyLight
+					.putInt() // uBlockLight
+					
+					.putFloat() // uNorthShading
+					.putFloat() // uSouthShading
+					.putFloat() // uEastShading
+					.putFloat() // uWestShading
+					.putFloat() // uTopShading
+					.putFloat() // uBottomShading
+					.get();
+				
+				
+				// create data //
+				
+				Mat4f projectionMvmMatrix = new Mat4f(renderEventParam.dhProjectionMatrix);
+				projectionMvmMatrix.multiply(renderEventParam.dhModelViewMatrix);
+				
+				
+				// upload data //
+				
+				ByteBuffer buffer = ByteBuffer.allocateDirect(uniformBufferSize);
+				buffer.order(ByteOrder.nativeOrder());
+				buffer = Std140Builder.intoBuffer(buffer)
+					.putIVec3(
+						LodUtil.getChunkPosFromDouble(boxGroup.getOriginBlockPos().x),
+						LodUtil.getChunkPosFromDouble(boxGroup.getOriginBlockPos().y),
+						LodUtil.getChunkPosFromDouble(boxGroup.getOriginBlockPos().z)
+					) // uOffsetChunk
+					.putVec3(
+						LodUtil.getSubChunkPosFromDouble(boxGroup.getOriginBlockPos().x),
+						LodUtil.getSubChunkPosFromDouble(boxGroup.getOriginBlockPos().y),
+						LodUtil.getSubChunkPosFromDouble(boxGroup.getOriginBlockPos().z)
+					) // uOffsetSubChunk
+					.putIVec3(
+						LodUtil.getChunkPosFromDouble(camPos.x),
+						LodUtil.getChunkPosFromDouble(camPos.y),
+						LodUtil.getChunkPosFromDouble(camPos.z)
+					) // uCameraPosChunk
+					.putVec3(
+						LodUtil.getSubChunkPosFromDouble(camPos.x),
+						LodUtil.getSubChunkPosFromDouble(camPos.y),
+						LodUtil.getSubChunkPosFromDouble(camPos.z)
+					) // uCameraPosSubChunk
+					
+					.putMat4f(projectionMvmMatrix.createJomlMatrix()) // uProjectionMvm
+					.putInt(boxGroup.getSkyLight()) // uSkyLight
+					.putInt(boxGroup.getBlockLight()) // uBlockLight
+					
+					.putFloat(shading.north)
+					.putFloat(shading.south)
+					.putFloat(shading.east)
+					.putFloat(shading.west)
+					.putFloat(shading.top)
+					.putFloat(shading.bottom)
+					
+					.get()
+				;
+				
+				this.vertUniformBuffer = BlazeUniformUtil.createBuffer("vertUniformBlock", uniformBufferSize, this.vertUniformBuffer);
+				GpuBufferSlice bufferSlice = new GpuBufferSlice(this.vertUniformBuffer, 0, uniformBufferSize);
+				
+				COMMAND_ENCODER.writeToBuffer(bufferSlice, buffer);
+			}
+			
+			
+			
+			
+			// render //
+			
+			profiler.popPush("rendering");
+			profiler.push(boxGroup.getResourceLocationNamespace());
+			profiler.push(boxGroup.getResourceLocationPath());
+			
+			try (RenderPass renderPass = COMMAND_ENCODER.createRenderPass(
+				this::getRenderPassName,
+				BlazeDhMetaRenderer.INSTANCE.dhColorTextureWrapper.textureView, 
+				/*optionalClearColorAsInt*/ OptionalInt.empty(),
+				BlazeDhMetaRenderer.INSTANCE.dhDepthTextureWrapper.textureView, 
+				/*optionalDepthValueAsDouble*/ OptionalDouble.empty()))
+			{
+				this.renderBoxGroupInstanced(renderPass, renderEventParam, boxGroup, camPos, profiler);
+			}
+			
+			profiler.pop(); // resource path
+			profiler.pop(); // resource namespace
+			
+			boxGroup.postRender(renderEventParam);
+		}
+		
+		//#endregion
+		
+		
+		
+		//==========//
+		// clean up //
+		//==========//
+		//region
+		
+		profiler.popPush("cleanup");
+		
+		ApiEventInjector.INSTANCE.fireAllEvents(DhApiBeforeGenericRenderCleanupEvent.class, renderEventParam);
+		
+		profiler.pop();
+		
+		//endregion
+	}
+	private String getRenderPassName() { return "distantHorizons:McGenericObjectRenderer"; }
+	
+	//endregion
+	
+	
+	
+	//=====================//
+	// instanced rendering //
+	//=====================//
+	//region
+	
+	private void renderBoxGroupInstanced(
+		RenderPass renderPass, RenderParams renderEventParam, 
+		RenderableBoxGroup boxGroup, Vec3d camPos,
+		IProfilerWrapper profiler)
+	{
+		// update instance data //
+		
+		profiler.push("vertex setup");
+		
+		BlazeGenericObjectVertexContainer container = (BlazeGenericObjectVertexContainer) boxGroup.vertexBufferContainer;
+		
+		LightMapWrapper lightMapWrapper = (LightMapWrapper) renderEventParam.lightmap;
+		BlazeTextureViewWrapper lightmapTextureViewWrapper = lightMapWrapper.getTextureViewWrapper();
+		renderPass.bindTexture("uLightMap", lightmapTextureViewWrapper.textureView, lightmapTextureViewWrapper.textureSampler);
+		
+		
+		
+		// Bind instance data //
+		profiler.popPush("binding");
+		
+		
+		renderPass.setUniform("vertUniformBlock", this.vertUniformBuffer);
+		
+		// set pipeline
+		renderPass.setPipeline(this.opaquePipeline); // TODO
+		renderPass.setIndexBuffer(container.indexGpuBuffer, VertexFormat.IndexType.INT);
+		
+		renderPass.setVertexBuffer(0, container.vboGpuBuffer);
+		
+		// Draw instanced
+		profiler.popPush("render");
+		if (container.uploadedBoxCount > 0)
+		{
+			renderPass.drawIndexed(
+				/*indexStart*/ 0,
+				/*firstIndex*/0,
+				/*indexCount*/container.uploadedBoxCount * 24, // TODO?
+				/*instanceCount*/1);
+			
+		}
+		
+		profiler.pop();
+	}
+	
+	//endregion
+	
+	
+	
+	//=========//
+	// F3 menu //
+	//=========//
+	//region
+	
+	public String getVboRenderDebugMenuString()
+	{
+		// get counts
+		int totalGroupCount = this.boxGroupById.size();
+		int totalBoxCount = 0;
+		
+		int activeGroupCount = 0;
+		int activeBoxCount = 0;
+		
+		for (long key : this.boxGroupById.keySet())
+		{
+			RenderableBoxGroup renderGroup = this.boxGroupById.get(key);
+			if (renderGroup.active)
+			{
+				activeGroupCount++;
+				activeBoxCount += renderGroup.size();
+			}
+			totalBoxCount += renderGroup.size();
+		}
+		
+		
+		return "Generic Obj #: " + F3Screen.NUMBER_FORMAT.format(activeGroupCount) + "/" + F3Screen.NUMBER_FORMAT.format(totalGroupCount) + ", " +
+				"Cube #: " + F3Screen.NUMBER_FORMAT.format(activeBoxCount) + "/" + F3Screen.NUMBER_FORMAT.format(totalBoxCount);
+	}
+	
+	//endregion
+	
+	
+	
+}
+#endif

common/src/main/java/com/seibel/distanthorizons/common/render/blaze/BlazeDhMetaRenderer.java

@@ -0,0 +1,94 @@
+package com.seibel.distanthorizons.common.render.blaze;
+
+#if MC_VER <= MC_1_21_10
+public class BlazeDhMetaRenderer {}
+
+#else
+
+import com.mojang.blaze3d.textures.GpuTexture;
+import com.seibel.distanthorizons.common.render.blaze.apply.BlazeDhApplyRenderer;
+import com.seibel.distanthorizons.common.render.blaze.wrappers.texture.BlazeTextureWrapper;
+import com.seibel.distanthorizons.core.render.RenderParams;
+import com.seibel.distanthorizons.core.util.ColorUtil;
+import com.seibel.distanthorizons.core.wrapperInterfaces.minecraft.IMinecraftRenderWrapper;
+import com.seibel.distanthorizons.core.wrapperInterfaces.render.renderPass.IDhMetaRenderer;
+import net.minecraft.client.Minecraft;
+
+public class BlazeDhMetaRenderer implements IDhMetaRenderer
+{
+	public static final BlazeDhMetaRenderer INSTANCE = new BlazeDhMetaRenderer();
+	
+	
+	private BlazeDhApplyRenderer applyRenderer;
+	
+	public final BlazeTextureWrapper dhDepthTextureWrapper = BlazeTextureWrapper.createDepth("DhDepthTexture");
+	public final BlazeTextureWrapper dhColorTextureWrapper = BlazeTextureWrapper.createColor("DhColorTexture");
+	
+	
+	
+	//=============//
+	// constructor //
+	//=============//
+	//region
+	
+	private BlazeDhMetaRenderer() 
+	{
+		this.applyRenderer = new BlazeDhApplyRenderer(
+			"dh_apply_to_mc",
+			null,
+			"apply/blaze/vert", "apply/blaze/frag"
+		);
+	}
+	
+	//endregion
+	
+	
+	
+	//=================//
+	// pre/post render //
+	//=================//
+	//region
+	
+	@Override
+	public void runRenderPassSetup(RenderParams renderParams)
+	{
+		// textures
+		this.dhDepthTextureWrapper.tryCreateOrResize();
+		this.dhColorTextureWrapper.tryCreateOrResize();
+	}
+	
+	@Override
+	public void runRenderPassCleanup(RenderParams renderParams) {}
+	
+	@Override
+	public void applyToMcTexture(RenderParams renderParams)
+	{
+		GpuTexture mcColorTexture = Minecraft.getInstance().getMainRenderTarget().getColorTexture();
+		this.applyRenderer.render(this.dhColorTextureWrapper.texture, this.dhDepthTextureWrapper.texture, mcColorTexture);
+	}
+	
+	//endregion
+	
+	
+	
+	//================//
+	// clear textures //
+	//================//
+	//region
+	
+	@Override
+	public void clearDhDepthAndColorTextures(RenderParams renderParams) 
+	{
+		// TODO use for clear color
+		//IMinecraftRenderWrapper r;
+		//r.getSkyColor()
+		
+		this.dhDepthTextureWrapper.clearDepth(1.0f);
+		this.dhColorTextureWrapper.clearColor(ColorUtil.argbToInt(1, 1, 1, 1)); 
+	}
+	
+	//endregion
+	
+	
+}
+#endif

common/src/main/java/com/seibel/distanthorizons/common/render/blaze/BlazeDhRenderApiDefinition.java

@@ -0,0 +1,71 @@
+package com.seibel.distanthorizons.common.render.blaze;
+
+#if MC_VER <= MC_1_21_10
+public class BlazeDhRenderApiDefinition {}
+
+#else
+
+import com.seibel.distanthorizons.common.render.blaze.objects.BlazeGenericObjectVertexContainer;
+import com.seibel.distanthorizons.common.render.blaze.postProcessing.BlazeDhFarFadeRenderer;
+import com.seibel.distanthorizons.common.render.blaze.postProcessing.BlazeDhFogRenderer;
+import com.seibel.distanthorizons.common.render.blaze.postProcessing.BlazeDhSsaoRenderer;
+import com.seibel.distanthorizons.common.render.blaze.postProcessing.BlazeVanillaFadeRenderer;
+import com.seibel.distanthorizons.common.render.blaze.test.BlazeDhTestTriangleRenderer;
+import com.seibel.distanthorizons.common.render.blaze.wrappers.buffer.BlazeVertexBufferWrapper;
+import com.seibel.distanthorizons.common.render.blaze.wrappers.uniform.BlazeLodUniformBufferWrapper;
+import com.seibel.distanthorizons.core.render.renderer.AbstractDebugWireframeRenderer;
+import com.seibel.distanthorizons.core.wrapperInterfaces.render.AbstractDhRenderApiDefinition;
+import com.seibel.distanthorizons.core.wrapperInterfaces.render.objects.IDhGenericObjectVertexBufferContainer;
+import com.seibel.distanthorizons.core.wrapperInterfaces.render.objects.ILodContainerUniformBufferWrapper;
+import com.seibel.distanthorizons.core.wrapperInterfaces.render.objects.IVertexBufferWrapper;
+import com.seibel.distanthorizons.core.wrapperInterfaces.render.renderPass.*;
+
+public class BlazeDhRenderApiDefinition extends AbstractDhRenderApiDefinition
+{
+	//=========//
+	// getters //
+	//=========//
+	//region
+	
+	public String getApiName() { return "Blaze3D"; }
+	
+	//endregion
+	
+	
+	
+	//============//
+	// singletons //
+	//============//
+	//region
+	
+	@Override public IDhMetaRenderer getMetaRenderer() { return BlazeDhMetaRenderer.INSTANCE; }
+	@Override public IDhTerrainRenderer getTerrainRenderer() { return BlazeDhTerrainRenderer.INSTANCE; }
+	@Override public IDhSsaoRenderer getSsaoRenderer() { return BlazeDhSsaoRenderer.INSTANCE; }
+	@Override public IDhFogRenderer getFogRenderer() { return BlazeDhFogRenderer.INSTANCE; }
+	@Override public IDhFarFadeRenderer getFarFadeRenderer() { return BlazeDhFarFadeRenderer.INSTANCE; }
+	@Override public AbstractDebugWireframeRenderer getDebugWireframeRenderer() { return BlazeDebugWireframeRenderer.INSTANCE; }
+	
+	@Override public IDhVanillaFadeRenderer getVanillaFadeRenderer() { return BlazeVanillaFadeRenderer.INSTANCE; }
+	@Override public IDhTestTriangleRenderer getTestTriangleRenderer() { return BlazeDhTestTriangleRenderer.INSTANCE; }
+	
+	//endregion
+	
+	
+	
+	//===========//
+	// factories //
+	//===========//
+	//region
+	
+	@Override public IDhGenericRenderer createGenericRenderer() { return new BlazeDhGenericObjectRenderer(); }
+	
+	@Override public IVertexBufferWrapper createVboWrapper(String name) { return new BlazeVertexBufferWrapper(name); }
+	@Override public ILodContainerUniformBufferWrapper createLodContainerUniformWrapper() { return new BlazeLodUniformBufferWrapper(); }
+	@Override public IDhGenericObjectVertexBufferContainer createGenericVboContainer() { return new BlazeGenericObjectVertexContainer(); }
+	
+	//endregion
+	
+	
+	
+}
+#endif

common/src/main/java/com/seibel/distanthorizons/common/render/blaze/BlazeDhTerrainRenderer.java

@@ -0,0 +1,394 @@
+package com.seibel.distanthorizons.common.render.blaze;
+
+#if MC_VER <= MC_1_21_10
+public class BlazeDhTerrainRenderer {}
+
+#else
+
+import com.mojang.blaze3d.buffers.GpuBuffer;
+import com.mojang.blaze3d.buffers.GpuBufferSlice;
+import com.mojang.blaze3d.buffers.Std140Builder;
+import com.mojang.blaze3d.buffers.Std140SizeCalculator;
+import com.mojang.blaze3d.pipeline.BlendFunction;
+import com.mojang.blaze3d.pipeline.RenderPipeline;
+import com.mojang.blaze3d.platform.DepthTestFunction;
+import com.mojang.blaze3d.platform.PolygonMode;
+import com.mojang.blaze3d.shaders.UniformType;
+import com.mojang.blaze3d.systems.CommandEncoder;
+import com.mojang.blaze3d.systems.GpuDevice;
+import com.mojang.blaze3d.systems.RenderPass;
+import com.mojang.blaze3d.systems.RenderSystem;
+import com.mojang.blaze3d.vertex.VertexFormat;
+import com.seibel.distanthorizons.api.methods.events.abstractEvents.DhApiBeforeBufferRenderEvent;
+import com.seibel.distanthorizons.common.render.blaze.util.BlazeDhVertexFormatUtil;
+import com.seibel.distanthorizons.common.render.blaze.util.BlazeUniformUtil;
+import com.seibel.distanthorizons.common.render.blaze.wrappers.texture.BlazeTextureViewWrapper;
+import com.seibel.distanthorizons.common.render.blaze.wrappers.uniform.BlazeLodUniformBufferWrapper;
+import com.seibel.distanthorizons.common.render.blaze.wrappers.buffer.BlazeVertexBufferWrapper;
+import com.seibel.distanthorizons.common.wrappers.misc.LightMapWrapper;
+import com.seibel.distanthorizons.core.config.Config;
+import com.seibel.distanthorizons.core.dataObjects.render.bufferBuilding.LodBufferContainer;
+import com.seibel.distanthorizons.core.dataObjects.render.bufferBuilding.LodQuadBuilder;
+import com.seibel.distanthorizons.core.logging.DhLogger;
+import com.seibel.distanthorizons.core.logging.DhLoggerBuilder;
+import com.seibel.distanthorizons.core.pos.DhSectionPos;
+import com.seibel.distanthorizons.common.render.openGl.glObject.enums.GLEnums;
+import com.seibel.distanthorizons.common.render.openGl.glObject.buffer.GlQuadElementBuffer;
+import com.seibel.distanthorizons.core.render.RenderParams;
+import com.seibel.distanthorizons.core.util.RenderUtil;
+import com.seibel.distanthorizons.core.util.math.Mat4f;
+import com.seibel.distanthorizons.core.util.math.Vec3d;
+import com.seibel.distanthorizons.core.util.math.Vec3f;
+import com.seibel.distanthorizons.core.util.objects.SortedArraySet;
+import com.seibel.distanthorizons.core.wrapperInterfaces.minecraft.IProfilerWrapper;
+import com.seibel.distanthorizons.core.wrapperInterfaces.render.renderPass.IDhTerrainRenderer;
+import com.seibel.distanthorizons.core.wrapperInterfaces.render.objects.IVertexBufferWrapper;
+import com.seibel.distanthorizons.coreapi.DependencyInjection.ApiEventInjector;
+import net.minecraft.resources.Identifier;
+import org.lwjgl.opengl.GL32;
+import org.lwjgl.system.MemoryUtil;
+
+import java.nio.ByteBuffer;
+import java.nio.ByteOrder;
+import java.util.OptionalDouble;
+import java.util.OptionalInt;
+
+/** Renders rendering DH's LOD terrain. */
+public class BlazeDhTerrainRenderer implements IDhTerrainRenderer
+{
+	public static final DhLogger LOGGER = new DhLoggerBuilder().build();
+	
+	private static final GpuDevice GPU_DEVICE = RenderSystem.getDevice();
+	private static final CommandEncoder COMMAND_ENCODER = GPU_DEVICE.createCommandEncoder();
+	
+	public static final BlazeDhTerrainRenderer INSTANCE = new BlazeDhTerrainRenderer();
+	
+	
+	private RenderPipeline opaquePipeline;
+	private RenderPipeline transparentPipeline;
+	private boolean init = false;
+	
+	private GpuBuffer indexBuffer;
+	
+	private GpuBuffer fragUniformBuffer;
+	private GpuBuffer vertSharedUniformBuffer;
+	
+	
+	
+	//=============//
+	// constructor //
+	//=============//
+	//region
+	
+	private BlazeDhTerrainRenderer() { }
+	
+	private void tryInit()
+	{
+		if (this.init)
+		{
+			return;
+		}
+		this.init = true; // todo only set when succeeded (in case of exception)
+		
+		
+		VertexFormat vertexFormat = VertexFormat.builder()
+			.add("vPosition", BlazeDhVertexFormatUtil.SHORT_XYZ_POS)
+			.add("meta", BlazeDhVertexFormatUtil.META)
+			.add("vColor", BlazeDhVertexFormatUtil.RGBA_UBYTE_COLOR)
+			.add("irisMaterial", BlazeDhVertexFormatUtil.IRIS_MATERIAL)
+			.add("irisNormal", BlazeDhVertexFormatUtil.IRIS_NORMAL)
+			.add("paddingTwo", BlazeDhVertexFormatUtil.BYTE_PAD)
+			.add("paddingThree", BlazeDhVertexFormatUtil.BYTE_PAD) // padding is to make sure the format is a multiple of 4
+			.build();
+		
+		RenderPipeline.Builder pipelineBuilder = RenderPipeline.builder();
+		{
+			pipelineBuilder.withCull(true);
+			pipelineBuilder.withDepthWrite(true);
+			pipelineBuilder.withDepthTestFunction(DepthTestFunction.LESS_DEPTH_TEST);
+			pipelineBuilder.withColorWrite(true);
+			pipelineBuilder.withPolygonMode(PolygonMode.FILL);
+			pipelineBuilder.withLocation(Identifier.parse("distanthorizons:lod_render"));
+			
+			pipelineBuilder.withVertexShader(Identifier.fromNamespaceAndPath("distanthorizons", "lod/blaze/vert"));
+			pipelineBuilder.withFragmentShader(Identifier.fromNamespaceAndPath("distanthorizons", "lod/blaze/frag"));
+			
+			pipelineBuilder.withSampler("uLightMap");
+			
+			pipelineBuilder.withUniform("vertUniqueUniformBlock", UniformType.UNIFORM_BUFFER);
+			pipelineBuilder.withUniform("vertSharedUniformBlock", UniformType.UNIFORM_BUFFER);
+			pipelineBuilder.withUniform("fragUniformBlock", UniformType.UNIFORM_BUFFER);
+			
+			pipelineBuilder.withVertexFormat(vertexFormat, VertexFormat.Mode.TRIANGLES);
+		}
+		
+		// opaque
+		{
+			pipelineBuilder.withoutBlend();
+			this.opaquePipeline = pipelineBuilder.build();
+		}
+		
+		// transparent
+		{
+			pipelineBuilder.withBlend(BlendFunction.TRANSLUCENT);
+			this.transparentPipeline = pipelineBuilder.build();
+		}
+	}
+	
+	//endregion
+	
+	
+	
+	//========//
+	// render //
+	//========//
+	//region
+	
+	@Override
+	public void render(
+		RenderParams renderEventParam, 
+		boolean opaquePass,
+		SortedArraySet<LodBufferContainer> bufferContainers,
+		IProfilerWrapper profiler)
+	{
+		this.tryInit();
+		
+		
+		profiler.push("vert unique uniforms");
+		{
+			// create data //
+			
+			for (int lodIndex = 0; lodIndex < bufferContainers.size(); lodIndex++)
+			{
+				LodBufferContainer bufferContainer = bufferContainers.get(lodIndex);
+				bufferContainer.uniformContainer.tryUpload();
+			}
+		}
+		
+		profiler.popPush("vert share uniforms");
+		{
+			Mat4f combinedMatrix = new Mat4f(renderEventParam.dhProjectionMatrix);
+			combinedMatrix.multiply(renderEventParam.dhModelViewMatrix);
+			
+			float earthCurveRatio = Config.Client.Advanced.Graphics.Experimental.earthCurveRatio.get();
+			if (earthCurveRatio < -1.0f || earthCurveRatio > 1.0f)
+			{
+				earthCurveRatio = /*6371KM*/ 6371000.0f / earthCurveRatio;
+			}
+			else
+			{
+				// disable curvature if the config value is between -1 and 1
+				earthCurveRatio = 0.0f;
+			}
+			
+			
+			// upload data //
+			
+			int uniformBufferSize = new Std140SizeCalculator()
+				.putInt() // uIsWhiteWorld
+				
+				.putFloat() // uWorldYOffset
+				.putFloat() // uMircoOffset
+				.putFloat() // uEarthRadius
+				
+				.putVec3() // uCameraPos
+				.putMat4f() // uCombinedMatrix
+				.get();
+			
+			ByteBuffer buffer = ByteBuffer.allocateDirect(uniformBufferSize);
+			buffer.order(ByteOrder.nativeOrder());
+			Std140Builder.intoBuffer(buffer)
+				.putInt(0) // uIsWhiteWorld
+				
+				.putFloat((float) renderEventParam.worldYOffset) // uWorldYOffset
+				.putFloat(0.01f) // uMircoOffset // 0.01 block offset
+				.putFloat(earthCurveRatio) // uEarthRadius
+				
+				.putVec3(
+					(float)renderEventParam.exactCameraPosition.x,
+					(float)renderEventParam.exactCameraPosition.y,
+					(float)renderEventParam.exactCameraPosition.z) // uCameraPos
+				.putMat4f(combinedMatrix.createJomlMatrix()) // uCombinedMatrix
+				.get();
+			
+			this.vertSharedUniformBuffer = BlazeUniformUtil.createBuffer("vertSharedUniformBlock", uniformBufferSize, this.vertSharedUniformBuffer);
+			GpuBufferSlice bufferSlice = new GpuBufferSlice(this.vertSharedUniformBuffer, 0, uniformBufferSize);
+			
+			COMMAND_ENCODER.writeToBuffer(bufferSlice, buffer);
+		}
+		
+		profiler.popPush("set frag uniforms");
+		{
+			int uniformBufferSize = new Std140SizeCalculator()
+				.putFloat() // uClipDistance
+				.putFloat() // uNoiseIntensity
+				.putInt() // uNoiseSteps
+				.putInt() // uNoiseDropoff
+				.putInt() // uDitherDhRendering
+				.putInt() // uNoiseEnabled
+				.get();
+			
+			
+			// create data //
+			
+			float dhNearClipDistance = RenderUtil.getNearClipPlaneInBlocks();
+			if (!Config.Client.Advanced.Debugging.lodOnlyMode.get())
+			{
+				// this added value prevents the near clip plane and discard circle from touching, which looks bad
+				dhNearClipDistance += 16f;
+			}
+			
+			
+			// upload data //
+			
+			ByteBuffer buffer = ByteBuffer.allocateDirect(uniformBufferSize);
+			buffer.order(ByteOrder.nativeOrder());
+			buffer = Std140Builder.intoBuffer(buffer)
+				.putFloat(dhNearClipDistance) // uClipDistance
+				.putFloat(Config.Client.Advanced.Graphics.NoiseTexture.noiseIntensity.get()) // uNoiseIntensity
+				.putInt(Config.Client.Advanced.Graphics.NoiseTexture.noiseSteps.get()) // uNoiseSteps
+				.putInt(Config.Client.Advanced.Graphics.NoiseTexture.noiseDropoff.get()) // uNoiseDropoff
+				.putInt(Config.Client.Advanced.Graphics.Quality.ditherDhFade.get() ? 1 : 0) // uDitherDhRendering
+				.putInt(Config.Client.Advanced.Graphics.NoiseTexture.enableNoiseTexture.get() ? 1 : 0) // uNoiseEnabled
+				.get()
+			;
+			
+			this.fragUniformBuffer = BlazeUniformUtil.createBuffer("fragUniformBlock", uniformBufferSize, this.fragUniformBuffer);
+			GpuBufferSlice bufferSlice = new GpuBufferSlice(this.fragUniformBuffer, 0, uniformBufferSize);
+			
+			COMMAND_ENCODER.writeToBuffer(bufferSlice, buffer);
+		}
+		
+		// create index buffer
+		{
+			if (this.indexBuffer == null)
+			{
+				ByteBuffer buffer = MemoryUtil.memAlloc(LodQuadBuilder.getMaxBufferByteSize() * GLEnums.getTypeSize(GL32.GL_UNSIGNED_INT) * 6);
+				GlQuadElementBuffer.buildBuffer(LodQuadBuilder.getMaxBufferByteSize(), buffer, GL32.GL_UNSIGNED_INT);
+				
+				
+				// create buffer if needed
+				if (this.indexBuffer == null
+					|| this.indexBuffer.size() < buffer.capacity())
+				{
+					int usage = GpuBuffer.USAGE_COPY_DST 
+						| GpuBuffer.USAGE_VERTEX 
+						| GpuBuffer.USAGE_INDEX 
+						| GpuBuffer.USAGE_UNIFORM;
+					this.indexBuffer = GPU_DEVICE.createBuffer(this::getIndexBufferName, usage, buffer.capacity());
+				}
+				
+				GpuBufferSlice bufferSlice = new GpuBufferSlice(this.indexBuffer, /*offset*/ 0, buffer.capacity());
+				COMMAND_ENCODER.writeToBuffer(bufferSlice, buffer);
+			}
+		}
+		
+		
+		
+		// render pass setup
+		{
+			profiler.popPush("setup");
+			
+			// create a render pass
+			OptionalInt optionalClearColorAsInt = OptionalInt.empty();
+			OptionalDouble optionalDepthValueAsDouble = OptionalDouble.empty();
+			
+			try(RenderPass renderPass = COMMAND_ENCODER.createRenderPass(
+				this::getRenderPassName,
+				BlazeDhMetaRenderer.INSTANCE.dhColorTextureWrapper.textureView,
+				optionalClearColorAsInt,
+				BlazeDhMetaRenderer.INSTANCE.dhDepthTextureWrapper.textureView, optionalDepthValueAsDouble)
+				)
+			{
+				// bind MC Lightmap
+				//renderPass.bindTexture("uLightMap", this.mcLightTextureViewWrapper.textureView, this.mcLightTextureViewWrapper.textureSampler);
+				LightMapWrapper lightMapWrapper = (LightMapWrapper) renderEventParam.lightmap;
+				BlazeTextureViewWrapper lightmapTextureViewWrapper = lightMapWrapper.getTextureViewWrapper();
+				renderPass.bindTexture("uLightMap", lightmapTextureViewWrapper.textureView, lightmapTextureViewWrapper.textureSampler);
+				
+				// set pipeline
+				renderPass.setPipeline(opaquePass ? this.opaquePipeline : this.transparentPipeline);
+				renderPass.setIndexBuffer(this.indexBuffer, VertexFormat.IndexType.INT);
+				
+				// shared uniforms
+				renderPass.setUniform("fragUniformBlock", this.fragUniformBuffer);
+				renderPass.setUniform("vertSharedUniformBlock", this.vertSharedUniformBuffer);
+				
+				
+				
+				for (int lodIndex = 0; lodIndex < bufferContainers.size(); lodIndex++)
+				{
+					profiler.popPush("binding");
+					
+					LodBufferContainer bufferContainer = bufferContainers.get(lodIndex);
+					BlazeLodUniformBufferWrapper uniformWrapper = (BlazeLodUniformBufferWrapper)bufferContainer.uniformContainer;
+					
+					boolean columnBuilderDebugEnabled = Config.Client.Advanced.Debugging.ColumnBuilderDebugging.columnBuilderDebugEnable.get();
+					if (columnBuilderDebugEnabled)
+					{
+						if (DhSectionPos.getDetailLevel(bufferContainer.pos) == Config.Client.Advanced.Debugging.ColumnBuilderDebugging.columnBuilderDebugDetailLevel.get()
+							&& DhSectionPos.getX(bufferContainer.pos) == Config.Client.Advanced.Debugging.ColumnBuilderDebugging.columnBuilderDebugXPos.get()
+							&& DhSectionPos.getZ(bufferContainer.pos) == Config.Client.Advanced.Debugging.ColumnBuilderDebugging.columnBuilderDebugZPos.get())
+						{
+							int breakpoint = 0;
+						}
+						else
+						{
+							continue;
+						}
+					}
+					
+					renderPass.setUniform("vertUniqueUniformBlock", uniformWrapper.gpuBuffer);
+					
+					
+					
+					profiler.popPush("rendering");
+					
+					// render each buffer
+					IVertexBufferWrapper[] bufferWrapperList = opaquePass ? bufferContainer.vbos : bufferContainer.vbosTransparent;
+					for (int i = 0; i < bufferWrapperList.length; i++)
+					{
+						BlazeVertexBufferWrapper bufferWrapper = (BlazeVertexBufferWrapper) bufferWrapperList[i];
+						if (!bufferWrapper.uploaded
+							|| bufferWrapper.vertexCount == 0)
+						{
+							continue;
+						}
+						
+						// fire render event
+						{
+							Vec3d camPos = renderEventParam.exactCameraPosition;
+							Vec3f modelPos = new Vec3f(
+								(float) (bufferContainer.minCornerBlockPos.getX() - camPos.x),
+								(float) (bufferContainer.minCornerBlockPos.getY() - camPos.y),
+								(float) (bufferContainer.minCornerBlockPos.getZ() - camPos.z));
+							ApiEventInjector.INSTANCE.fireAllEvents(DhApiBeforeBufferRenderEvent.class, new DhApiBeforeBufferRenderEvent.EventParam(renderEventParam, modelPos));
+						}
+						
+						renderPass.setVertexBuffer(0, bufferWrapper.vboGpuBuffer); // vertex buffer can only be "0" lol
+						
+						if (!bufferWrapper.vboGpuBuffer.isClosed())
+						{
+							renderPass.drawIndexed(
+								/*indexStart*/ 0,
+								/*firstIndex*/0,
+								/*indexCount*/bufferWrapper.indexCount,
+								/*instanceCount*/1);
+						}
+					}
+				}
+				
+			}
+		}
+		
+		profiler.pop();
+	}
+	private String getIndexBufferName() { return "distantHorizons:LodIndexBuffer"; }
+	private String getRenderPassName() { return "distantHorizons:McLodRenderer"; }
+	
+	//endregion
+	
+	
+	
+}
+#endif

common/src/main/java/com/seibel/distanthorizons/common/render/blaze/apply/BlazeDhApplyRenderer.java

@@ -0,0 +1,268 @@
+/*
+ *    This file is part of the Distant Horizons mod
+ *    licensed under the GNU LGPL 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 Lesser 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 Lesser General Public License for more details.
+ *
+ *    You should have received a copy of the GNU Lesser General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.seibel.distanthorizons.common.render.blaze.apply;
+
+#if MC_VER <= MC_1_21_10
+public class BlazeDhApplyRenderer {}
+
+#else
+
+import com.mojang.blaze3d.buffers.GpuBuffer;
+import com.mojang.blaze3d.pipeline.BlendFunction;
+import com.mojang.blaze3d.pipeline.RenderPipeline;
+import com.mojang.blaze3d.platform.DepthTestFunction;
+import com.mojang.blaze3d.platform.PolygonMode;
+import com.mojang.blaze3d.shaders.UniformType;
+import com.mojang.blaze3d.systems.CommandEncoder;
+import com.mojang.blaze3d.systems.GpuDevice;
+import com.mojang.blaze3d.systems.RenderPass;
+import com.mojang.blaze3d.systems.RenderSystem;
+import com.mojang.blaze3d.textures.*;
+import com.mojang.blaze3d.vertex.VertexFormat;
+import com.seibel.distanthorizons.common.render.blaze.util.BlazeDhVertexFormatUtil;
+import com.seibel.distanthorizons.common.render.blaze.wrappers.texture.BlazeTextureViewWrapper;
+import com.seibel.distanthorizons.common.render.blaze.util.BlazePostProcessUtil;
+import com.seibel.distanthorizons.core.logging.DhLogger;
+import com.seibel.distanthorizons.core.logging.DhLoggerBuilder;
+import com.seibel.distanthorizons.coreapi.ModInfo;
+import net.minecraft.resources.Identifier;
+import org.jetbrains.annotations.Nullable;
+
+import java.util.Arrays;
+import java.util.OptionalDouble;
+import java.util.OptionalInt;
+
+/**
+ * Copies the given color texture
+ * where the depth (or another attribute) is valid.
+ * Often used to apply post processing effects or
+ * the DH texture to MC's color texture. <br><br>
+ * 
+ * @see BlazeDhCopyRenderer
+ */
+public class BlazeDhApplyRenderer
+{
+	public static final DhLogger LOGGER = new DhLoggerBuilder().build(); 
+	
+	private static final GpuDevice GPU_DEVICE = RenderSystem.getDevice();
+	private static final CommandEncoder COMMAND_ENCODER = GPU_DEVICE.createCommandEncoder();
+	
+	private RenderPipeline pipeline;
+	
+	protected GpuBuffer vboGpuBuffer;
+	
+	protected final String name;
+	protected final String identifierName;
+	public String getIdentifierName() { return this.identifierName; }
+	
+	@Nullable
+	private final BlendFunction blendFunction;
+	private final String vertexShaderPath;
+	private final String fragmentShaderPath;
+	
+	private final BlazeTextureViewWrapper sourceColorTextureViewWrapper = new BlazeTextureViewWrapper();
+	private final BlazeTextureViewWrapper sourceDepthTextureViewWrapper = new BlazeTextureViewWrapper();
+	
+	private final BlazeTextureViewWrapper destinationColorTextureViewWrapper = new BlazeTextureViewWrapper();
+	
+	/** 
+	 * Can be set for special application shaders that need 
+	 * extra information. <br><br>
+	 * 
+	 * will be an empty array if unneeded 
+	 */
+	private final String[] uniformNames;
+	/** will be an empty array if unneeded */
+	private final GpuBuffer[] uniformBuffers;
+	
+	
+	
+	//=============//
+	// constructor //
+	//=============//
+	//region
+	public BlazeDhApplyRenderer(
+		String name,
+		@Nullable BlendFunction blendFunction,
+		String vertexShaderPath, String fragmentShaderPath
+		)
+	{
+		this(
+			name,
+			blendFunction,
+			vertexShaderPath, fragmentShaderPath,
+			new String[0] // no extra uniforms
+		);
+	}
+	public BlazeDhApplyRenderer(
+		String name,
+		@Nullable BlendFunction blendFunction,
+		String vertexShaderPath, String fragmentShaderPath,
+		String[] uniformNames
+		)
+	{
+		this.name = name;
+		this.identifierName = "distanthorizons:"+this.name;
+		this.blendFunction = blendFunction;
+		
+		this.vertexShaderPath = vertexShaderPath;
+		this.fragmentShaderPath = fragmentShaderPath;
+		
+		this.uniformNames = uniformNames;
+		this.uniformBuffers = new GpuBuffer[this.uniformNames.length];
+	}
+	
+	private void tryInit(
+		GpuTexture sourceColorTexture,
+		GpuTexture sourceDepthTexture,
+		GpuTexture destinationColorTexture)
+	{
+		this.createPipeline();
+		this.vboGpuBuffer = BlazePostProcessUtil.createAndUploadScreenVertexData(this.name);
+		
+		this.sourceColorTextureViewWrapper.tryWrap(sourceColorTexture);
+		this.sourceDepthTextureViewWrapper.tryWrap(sourceDepthTexture);
+		
+		this.destinationColorTextureViewWrapper.tryWrap(destinationColorTexture);
+		
+	}
+	private void createPipeline()
+	{
+		if (this.pipeline != null)
+		{
+			return;
+		}
+		
+		VertexFormat vertexFormat = VertexFormat.builder()
+			.add("vPosition", BlazeDhVertexFormatUtil.SCREEN_POS)
+			.build();
+		
+		RenderPipeline.Builder pipelineBuilder = RenderPipeline.builder();
+		{
+			pipelineBuilder.withCull(false);
+			pipelineBuilder.withDepthWrite(false);
+			pipelineBuilder.withDepthTestFunction(DepthTestFunction.NO_DEPTH_TEST);
+			pipelineBuilder.withColorWrite(true);
+			
+			if (this.blendFunction != null)
+			{
+				pipelineBuilder.withBlend(this.blendFunction);
+			}
+			else
+			{
+				pipelineBuilder.withoutBlend();
+			}
+			
+			pipelineBuilder.withPolygonMode(PolygonMode.FILL);
+			pipelineBuilder.withLocation(Identifier.parse(this.identifierName)); // TODO will complain if capital letters are included
+			
+			// TODO manually validate paths to confirm they exist and end with ".fsh" or ".vsh", MC silently fails if the files are missing/improperly named
+			pipelineBuilder.withVertexShader(Identifier.fromNamespaceAndPath("distanthorizons", this.vertexShaderPath));
+			pipelineBuilder.withFragmentShader(Identifier.fromNamespaceAndPath("distanthorizons", this.fragmentShaderPath));
+			
+			for (int i = 0; i < this.uniformNames.length; i++)
+			{
+				String uniformName = this.uniformNames[i];
+				pipelineBuilder.withUniform(uniformName, UniformType.UNIFORM_BUFFER);
+			}
+			
+			pipelineBuilder.withSampler("uSourceColorTexture");
+			pipelineBuilder.withSampler("uSourceDepthTexture");
+			
+			pipelineBuilder.withVertexFormat(vertexFormat, VertexFormat.Mode.TRIANGLE_FAN);
+		}
+		this.pipeline = pipelineBuilder.build();
+	}
+	
+	
+	//endregion
+	
+	
+	
+	//========//
+	// render //
+	//========//
+	//region
+	
+	public void setUniform(String uniformName, GpuBuffer uniformBuffer)
+	{
+		// the uniform array should be short enough (less than 10 items)
+		// where a sequential search should be plenty fast
+		for (int i = 0; i < this.uniformNames.length; i++)
+		{
+			String nameAtIndex = this.uniformNames[i];
+			if (nameAtIndex.equals(uniformName))
+			{
+				this.uniformBuffers[i] = uniformBuffer;
+				break;
+			}
+		}
+	}
+	
+	public void render(
+		GpuTexture sourceColorTexture,
+		GpuTexture sourceDepthTexture,
+		GpuTexture destinationColorTexture)
+	{
+		this.tryInit(sourceColorTexture, sourceDepthTexture, destinationColorTexture);
+		
+		try (RenderPass renderPass = COMMAND_ENCODER.createRenderPass(
+			this::getIdentifierName,
+			this.destinationColorTextureViewWrapper.textureView,
+			/*optionalClearColorAsInt*/ OptionalInt.empty(),
+			/*depthTexture*/ null,
+			/*optionalDepthValueAsDouble*/ OptionalDouble.empty()))
+		{
+			renderPass.bindTexture("uSourceColorTexture", this.sourceColorTextureViewWrapper.textureView, this.sourceColorTextureViewWrapper.textureSampler);
+			renderPass.bindTexture("uSourceDepthTexture", this.sourceDepthTextureViewWrapper.textureView, this.sourceDepthTextureViewWrapper.textureSampler);
+			
+			for (int i = 0; i < this.uniformNames.length; i++)
+			{
+				String uniformName = this.uniformNames[i];
+				GpuBuffer uniformBuffer = this.uniformBuffers[i];
+				if (uniformBuffer == null)
+				{
+					throw new IllegalStateException("Missing uniform ["+uniformName+"], please set the uniform before rendering.");	
+				}
+				
+				renderPass.setUniform(uniformName, uniformBuffer);
+			}
+			
+			renderPass.setVertexBuffer(0, this.vboGpuBuffer);
+			renderPass.setPipeline(this.pipeline);
+			
+			renderPass.draw(/*indexStart*/ 0, /*indexCount*/ 4);
+		}
+		
+		
+		// clear the uniforms after rendering
+		// so we can check if they're missing during next frame's rendering
+		if (ModInfo.IS_DEV_BUILD)
+		{
+			Arrays.fill(this.uniformBuffers, null);
+		}
+	}
+	
+	//endregion
+	
+	
+	
+}
+#endif

common/src/main/java/com/seibel/distanthorizons/common/render/blaze/apply/BlazeDhCopyRenderer.java

@@ -0,0 +1,165 @@
+/*
+ *    This file is part of the Distant Horizons mod
+ *    licensed under the GNU LGPL 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 Lesser 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 Lesser General Public License for more details.
+ *
+ *    You should have received a copy of the GNU Lesser General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.seibel.distanthorizons.common.render.blaze.apply;
+
+#if MC_VER <= MC_1_21_10
+public class BlazeDhCopyRenderer {}
+
+#else
+
+import com.mojang.blaze3d.buffers.GpuBuffer;
+import com.mojang.blaze3d.pipeline.RenderPipeline;
+import com.mojang.blaze3d.platform.DepthTestFunction;
+import com.mojang.blaze3d.platform.PolygonMode;
+import com.mojang.blaze3d.systems.CommandEncoder;
+import com.mojang.blaze3d.systems.GpuDevice;
+import com.mojang.blaze3d.systems.RenderPass;
+import com.mojang.blaze3d.systems.RenderSystem;
+import com.mojang.blaze3d.textures.*;
+import com.mojang.blaze3d.vertex.VertexFormat;
+import com.seibel.distanthorizons.common.render.blaze.wrappers.texture.BlazeTextureViewWrapper;
+import com.seibel.distanthorizons.common.render.blaze.wrappers.texture.BlazeTextureWrapper;
+import com.seibel.distanthorizons.common.render.blaze.util.BlazePostProcessUtil;
+import com.seibel.distanthorizons.core.logging.DhLogger;
+import com.seibel.distanthorizons.core.logging.DhLoggerBuilder;
+import net.minecraft.resources.Identifier;
+
+import java.util.OptionalDouble;
+import java.util.OptionalInt;
+
+/**
+ * Blindly copies one texture into another.
+ *
+ * @see BlazeDhApplyRenderer
+ */
+public class BlazeDhCopyRenderer
+{
+	public static final DhLogger LOGGER = new DhLoggerBuilder().build();
+	
+	private static final GpuDevice GPU_DEVICE = RenderSystem.getDevice();
+	private static final CommandEncoder COMMAND_ENCODER = GPU_DEVICE.createCommandEncoder();
+	
+	public static final BlazeDhCopyRenderer INSTANCE = new BlazeDhCopyRenderer();
+	
+	private RenderPipeline pipeline;
+	private boolean init = false;
+	
+	private GpuBuffer vboGpuBuffer;
+	
+	
+	
+	//=============//
+	// constructor //
+	//=============//
+	//region
+	
+	private BlazeDhCopyRenderer() { }
+	
+	private void tryInit()
+	{
+		if (this.init)
+		{
+			return;
+		}
+		this.init = true;
+		
+		
+		
+		RenderPipeline.Builder pipelineBuilder = RenderPipeline.builder();
+		{
+			pipelineBuilder.withCull(false);
+			pipelineBuilder.withDepthWrite(false);
+			pipelineBuilder.withDepthTestFunction(DepthTestFunction.NO_DEPTH_TEST);
+			pipelineBuilder.withColorWrite(true);
+			pipelineBuilder.withoutBlend();
+			pipelineBuilder.withPolygonMode(PolygonMode.FILL);
+			pipelineBuilder.withLocation(Identifier.parse("distanthorizons:copy_render"));
+			
+			pipelineBuilder.withVertexShader(Identifier.fromNamespaceAndPath("distanthorizons", "copy/blaze/vert"));
+			pipelineBuilder.withFragmentShader(Identifier.fromNamespaceAndPath("distanthorizons", "copy/blaze/frag"));
+			
+			pipelineBuilder.withSampler("uCopyTexture");
+			
+			pipelineBuilder.withVertexFormat(BlazePostProcessUtil.createVertexFormat(), VertexFormat.Mode.TRIANGLE_FAN);
+		}
+		this.pipeline = pipelineBuilder.build();
+		
+		
+		this.vboGpuBuffer = BlazePostProcessUtil.createAndUploadScreenVertexData("McCopyRenderer");
+		
+	}
+	
+	//endregion
+	
+	
+	
+	//========//
+	// render //
+	//========//
+	//region
+	
+	public void render(
+		BlazeTextureWrapper sourceColorTextureWrapper,
+		BlazeTextureViewWrapper destinationColorTextureWrapper)
+	{
+		this.render(
+			sourceColorTextureWrapper.textureView, sourceColorTextureWrapper.textureSampler,
+			destinationColorTextureWrapper.textureView);
+	}
+	public void render(
+		BlazeTextureWrapper sourceColorTextureWrapper,
+		BlazeTextureWrapper destinationColorTextureWrapper)
+	{
+		this.render(
+			sourceColorTextureWrapper.textureView, sourceColorTextureWrapper.textureSampler,
+			destinationColorTextureWrapper.textureView);
+	}
+	
+	private void render(
+		GpuTextureView sourceTextureView,
+		GpuSampler sourceTextureSampler,
+		GpuTextureView destinationTextureView)
+	{
+		this.tryInit();
+		
+		try (RenderPass renderPass = COMMAND_ENCODER.createRenderPass(
+			this::getRenderPassName,
+			destinationTextureView,
+			/*optionalClearColorAsInt*/ OptionalInt.empty(),
+			/*depthTexture*/ null,
+			/*optionalDepthValueAsDouble*/ OptionalDouble.empty()))
+		{
+			renderPass.bindTexture("uCopyTexture", sourceTextureView, sourceTextureSampler);
+			
+			renderPass.setVertexBuffer(0, this.vboGpuBuffer); // vertex buffer can only be "0" lol
+			
+			renderPass.setPipeline(this.pipeline);
+			renderPass.draw(/*indexStart*/ 0, /*indexCount*/ 4);
+		}
+	}
+	
+	private String getRenderPassName() { return "distantHorizons:McCopyRenderer"; }
+	
+	//endregion
+	
+	
+	
+}
+#endif

common/src/main/java/com/seibel/distanthorizons/common/render/blaze/objects/BlazeGenericObjectVertexContainer.java

@@ -0,0 +1,285 @@
+package com.seibel.distanthorizons.common.render.blaze.objects;
+
+#if MC_VER <= MC_1_21_10
+public class BlazeGenericObjectVertexContainer {}
+
+#else
+	
+import com.mojang.blaze3d.buffers.GpuBuffer;
+import com.mojang.blaze3d.buffers.GpuBufferSlice;
+import com.mojang.blaze3d.systems.CommandEncoder;
+import com.mojang.blaze3d.systems.GpuDevice;
+import com.mojang.blaze3d.systems.RenderSystem;
+import com.seibel.distanthorizons.api.objects.render.DhApiRenderableBox;
+import com.seibel.distanthorizons.core.logging.DhLogger;
+import com.seibel.distanthorizons.core.logging.DhLoggerBuilder;
+import com.seibel.distanthorizons.common.render.openGl.glObject.enums.GLEnums;
+import com.seibel.distanthorizons.core.render.RenderThreadTaskHandler;
+import com.seibel.distanthorizons.core.wrapperInterfaces.render.objects.IDhGenericObjectVertexBufferContainer;
+import com.seibel.distanthorizons.core.render.renderer.RenderableBoxGroup;
+import com.seibel.distanthorizons.core.util.ColorUtil;
+import org.lwjgl.opengl.GL32;
+
+import java.nio.ByteBuffer;
+import java.nio.ByteOrder;
+import java.util.List;
+
+/**
+ * For use by {@link RenderableBoxGroup} 
+ * 
+ * @see RenderableBoxGroup
+ */
+public class BlazeGenericObjectVertexContainer implements IDhGenericObjectVertexBufferContainer
+{
+	private static final DhLogger LOGGER = new DhLoggerBuilder().build();
+	
+	private static final GpuDevice GPU_DEVICE = RenderSystem.getDevice();
+	private static final CommandEncoder COMMAND_ENCODER = GPU_DEVICE.createCommandEncoder();
+	
+	private static final int[] BOX_INDICES = {
+		//region
+		// min X, vertical face
+		2, 1, 0,
+		0, 3, 2,
+		// max X, vertical face
+		6, 5, 4,
+		4, 7, 6,
+		
+		// min Z, vertical face
+		10, 9, 8,
+		8, 11, 10,
+		// max Z, vertical face
+		14, 13, 12,
+		12, 15, 14,
+		
+		// min Y, horizontal face
+		18, 17, 16,
+		16, 19, 18,
+		// max Y, horizontal face
+		20, 21, 22,
+		22, 23, 20,
+		//endregion
+	};
+	
+	
+	
+	public GpuBuffer vboGpuBuffer;
+	public GpuBuffer indexGpuBuffer;
+	
+	private ByteBuffer vertexBuffer = ByteBuffer.allocateDirect(0);
+	private ByteBuffer indexBuffer = ByteBuffer.allocateDirect(0);
+	
+	public int uploadedBoxCount = 0;
+	
+	private EState state = EState.NEW;
+	@Override
+	public IDhGenericObjectVertexBufferContainer.EState getState() { return this.state; }
+	@Override
+	public void setState(IDhGenericObjectVertexBufferContainer.EState state) { this.state = state; }
+	
+	
+	
+	//===========================//
+	// render building/uploading //
+	//===========================//
+	//region
+	
+	public void updateVertexData(List<DhApiRenderableBox> uploadBoxList)
+	{
+		int boxCount = uploadBoxList.size();
+		if (boxCount == 0)
+		{
+			return; // TODO done just to fix a buffer empty crash
+		}
+		
+		
+		// recreate the data arrays if their size is different
+		if (this.uploadedBoxCount != boxCount)
+		{
+			this.uploadedBoxCount = boxCount;
+			
+			int vertexBufferSize = this.vertexBufferSize();
+			this.vertexBuffer = ByteBuffer.allocateDirect(vertexBufferSize);
+			this.vertexBuffer.order(ByteOrder.nativeOrder());
+			
+			int indexBufferSize = this.indexBufferSize();
+			this.indexBuffer = ByteBuffer.allocateDirect(indexBufferSize);
+			this.indexBuffer.order(ByteOrder.nativeOrder());
+		}
+		this.vertexBuffer.position(0);
+		this.indexBuffer.position(0);
+		
+		
+		
+		for (int boxIndex = 0; boxIndex < boxCount; boxIndex++)
+		{
+			// index
+			int indexOffset = (boxIndex * 24 /*24 is the number of vertices in a box*/);
+			for (int i = 0; i < BOX_INDICES.length; i++)
+			{
+				this.indexBuffer.putInt(BOX_INDICES[i] + indexOffset);
+			}
+			
+			
+			
+			
+			// vertex
+			DhApiRenderableBox box = uploadBoxList.get(boxIndex);
+			
+			final double[] boxVertices = 
+			{
+				//region
+				// Pos x y z
+				
+				// min X, vertical face
+				box.minPos.x, box.minPos.y, box.minPos.z,
+				box.maxPos.x, box.minPos.y, box.minPos.z,
+				box.maxPos.x, box.maxPos.y, box.minPos.z,
+				box.minPos.x, box.maxPos.y, box.minPos.z,
+				// max X, vertical face
+				box.minPos.x, box.maxPos.y, box.maxPos.z,
+				box.maxPos.x, box.maxPos.y, box.maxPos.z,
+				box.maxPos.x, box.minPos.y, box.maxPos.z,
+				box.minPos.x, box.minPos.y, box.maxPos.z,
+				
+				// min Z, vertical face
+				box.minPos.x, box.minPos.y, box.maxPos.z,
+				box.minPos.x, box.minPos.y, box.minPos.z,
+				box.minPos.x, box.maxPos.y, box.minPos.z,
+				box.minPos.x, box.maxPos.y, box.maxPos.z,
+				// max Z, vertical face
+				box.maxPos.x, box.minPos.y, box.maxPos.z,
+				box.maxPos.x, box.maxPos.y, box.maxPos.z,
+				box.maxPos.x, box.maxPos.y, box.minPos.z,
+				box.maxPos.x, box.minPos.y, box.minPos.z,
+				
+				// min Y, horizontal face
+				box.minPos.x, box.minPos.y, box.maxPos.z,
+				box.maxPos.x, box.minPos.y, box.maxPos.z,
+				box.maxPos.x, box.minPos.y, box.minPos.z,
+				box.minPos.x, box.minPos.y, box.minPos.z,
+				// max Y, horizontal face
+				box.minPos.x, box.maxPos.y, box.maxPos.z,
+				box.maxPos.x, box.maxPos.y, box.maxPos.z,
+				box.maxPos.x, box.maxPos.y, box.minPos.z,
+				box.minPos.x, box.maxPos.y, box.minPos.z,
+				//endregion
+			};
+			
+			for (int vertexIndex = 0; vertexIndex < boxVertices.length; vertexIndex+=3)
+			{
+				this.vertexBuffer.putFloat((float)boxVertices[vertexIndex]); // x
+				this.vertexBuffer.putFloat((float)boxVertices[vertexIndex+1]); // y
+				this.vertexBuffer.putFloat((float)boxVertices[vertexIndex+2]); // z
+				
+				int color = ColorUtil.toColorInt(box.color);
+				byte r = (byte) ColorUtil.getRed(color);
+				byte g = (byte) ColorUtil.getGreen(color);
+				byte b = (byte) ColorUtil.getBlue(color);
+				byte a = (byte) ColorUtil.getAlpha(color);
+				this.vertexBuffer.put(r);
+				this.vertexBuffer.put(g);
+				this.vertexBuffer.put(b);
+				this.vertexBuffer.put(a);
+				
+				this.vertexBuffer.put(box.material);
+				// TODO make sure this all is a multiple of 4 like LodQuadBuilder (might cause issues with AMD/Mac otherwise)
+			}
+		}
+		this.vertexBuffer.flip();
+		this.indexBuffer.flip();
+		
+		
+		this.state = BlazeGenericObjectVertexContainer.EState.READY_TO_UPLOAD;
+	}
+	
+	private int vertexBufferSize()
+	{
+		int faceCount = this.uploadedBoxCount * 6;
+		int vertexCount = faceCount * 6;
+		
+		int byteSize = vertexCount * 3 * Float.BYTES; // x,y,z
+		byteSize += vertexCount * 4; // r,g,b,a
+		byteSize += 1; // material
+		return byteSize;
+	}
+	private int indexBufferSize()
+	{
+		int quadCount = this.uploadedBoxCount * 36;
+		int byteSize = quadCount * GLEnums.getTypeSize(GL32.GL_UNSIGNED_INT) * 6;
+		return byteSize;
+	}
+	
+	public void uploadDataToGpu()
+	{
+		// vertex
+		{
+			int totalVertexByteSize = this.vertexBufferSize();
+			if (this.vboGpuBuffer == null
+				|| this.vboGpuBuffer.size() < totalVertexByteSize)
+			{
+				int usage = GpuBuffer.USAGE_COPY_DST 
+					| GpuBuffer.USAGE_VERTEX;
+				this.vboGpuBuffer = GPU_DEVICE.createBuffer(this::getVertexBufferName, usage, totalVertexByteSize);
+			}
+			
+			GpuBufferSlice bufferSlice = new GpuBufferSlice(this.vboGpuBuffer, /*offset*/0, totalVertexByteSize);
+			COMMAND_ENCODER.writeToBuffer(bufferSlice, this.vertexBuffer);
+		}
+		
+		// index
+		{
+			int totalVertexByteSize = this.indexBufferSize();
+			if (this.indexGpuBuffer == null
+				|| this.indexGpuBuffer.size() < totalVertexByteSize)
+			{
+				int usage = GpuBuffer.USAGE_COPY_DST 
+					| GpuBuffer.USAGE_VERTEX 
+					| GpuBuffer.USAGE_INDEX 
+					| GpuBuffer.USAGE_UNIFORM;
+				this.indexGpuBuffer = GPU_DEVICE.createBuffer(this::getIndexBufferName, usage, totalVertexByteSize);
+			}
+			
+			int offset = 0;
+			GpuBufferSlice bufferSlice = new GpuBufferSlice(this.indexGpuBuffer, offset, totalVertexByteSize);
+			
+			COMMAND_ENCODER.writeToBuffer(bufferSlice, this.indexBuffer);
+		}
+		
+		this.state = EState.RENDER;
+	}
+	private String getVertexBufferName() { return "distantHorizons:GenericVertexBuffer"; }
+	private String getIndexBufferName() { return "distantHorizons:GenericIndexBuffer"; }
+	
+	//endregion
+	
+	
+	
+	//================//
+	// base overrides //
+	//================//
+	//region
+	
+	@Override
+	public void close()
+	{
+		RenderThreadTaskHandler.INSTANCE.queueRunningOnRenderThread(() -> 
+		{
+			if (this.vboGpuBuffer != null)
+			{
+				this.vboGpuBuffer.close();
+			}
+			
+			if (this.indexGpuBuffer != null)
+			{
+				this.indexGpuBuffer.close();
+			}
+		});
+	}
+	
+	//endregion
+	
+	
+	
+}
+#endif

common/src/main/java/com/seibel/distanthorizons/common/render/blaze/postProcessing/BlazeDhFarFadeRenderer.java

@@ -0,0 +1,235 @@
+/*
+ *    This file is part of the Distant Horizons mod
+ *    licensed under the GNU LGPL 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 Lesser 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 Lesser General Public License for more details.
+ *
+ *    You should have received a copy of the GNU Lesser General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.seibel.distanthorizons.common.render.blaze.postProcessing;
+
+#if MC_VER <= MC_1_21_10
+public class BlazeDhFarFadeRenderer {}
+
+#else
+	
+import com.mojang.blaze3d.buffers.GpuBuffer;
+import com.mojang.blaze3d.buffers.GpuBufferSlice;
+import com.mojang.blaze3d.buffers.Std140Builder;
+import com.mojang.blaze3d.buffers.Std140SizeCalculator;
+import com.mojang.blaze3d.pipeline.RenderPipeline;
+import com.mojang.blaze3d.platform.DepthTestFunction;
+import com.mojang.blaze3d.platform.PolygonMode;
+import com.mojang.blaze3d.shaders.UniformType;
+import com.mojang.blaze3d.systems.CommandEncoder;
+import com.mojang.blaze3d.systems.GpuDevice;
+import com.mojang.blaze3d.systems.RenderPass;
+import com.mojang.blaze3d.systems.RenderSystem;
+import com.mojang.blaze3d.vertex.VertexFormat;
+import com.seibel.distanthorizons.common.render.blaze.BlazeDhMetaRenderer;
+import com.seibel.distanthorizons.common.render.blaze.apply.BlazeDhCopyRenderer;
+import com.seibel.distanthorizons.common.render.blaze.util.BlazePostProcessUtil;
+import com.seibel.distanthorizons.common.render.blaze.util.BlazeUniformUtil;
+import com.seibel.distanthorizons.common.render.blaze.wrappers.texture.BlazeTextureViewWrapper;
+import com.seibel.distanthorizons.common.render.blaze.wrappers.texture.BlazeTextureWrapper;
+import com.seibel.distanthorizons.core.logging.DhLogger;
+import com.seibel.distanthorizons.core.logging.DhLoggerBuilder;
+import com.seibel.distanthorizons.core.render.RenderParams;
+import com.seibel.distanthorizons.core.util.RenderUtil;
+import com.seibel.distanthorizons.core.util.math.Mat4f;
+import com.seibel.distanthorizons.core.wrapperInterfaces.render.renderPass.IDhFarFadeRenderer;
+import net.minecraft.client.Minecraft;
+import net.minecraft.resources.Identifier;
+
+import java.nio.ByteBuffer;
+import java.nio.ByteOrder;
+import java.util.OptionalDouble;
+import java.util.OptionalInt;
+
+/**
+ * Fades out DH's far clip plane
+ */
+public class BlazeDhFarFadeRenderer implements IDhFarFadeRenderer
+{
+	public static final DhLogger LOGGER = new DhLoggerBuilder().build(); 
+	
+	private static final GpuDevice GPU_DEVICE = RenderSystem.getDevice();
+	private static final CommandEncoder COMMAND_ENCODER = GPU_DEVICE.createCommandEncoder();
+	
+	public static final BlazeDhFarFadeRenderer INSTANCE = new BlazeDhFarFadeRenderer();
+	
+	private RenderPipeline pipeline;
+	private boolean init = false;
+	
+	private GpuBuffer fragUniformBuffer;
+	
+	private GpuBuffer vboGpuBuffer;
+	
+	public final BlazeTextureWrapper dhFadeColorTextureWrapper = BlazeTextureWrapper.createColor("DhFadeColorTexture");
+	public final BlazeTextureViewWrapper mcColorTextureViewWrapper = new BlazeTextureViewWrapper();
+	
+	
+	
+	//=============//
+	// constructor //
+	//=============//
+	//region
+	
+	private BlazeDhFarFadeRenderer() { }
+	
+	private void tryInit()
+	{
+		if (this.init)
+		{
+			return;
+		}
+		this.init = true;
+		
+		
+		
+		RenderPipeline.Builder pipelineBuilder = RenderPipeline.builder();
+		{
+			pipelineBuilder.withCull(false);
+			pipelineBuilder.withDepthWrite(false);
+			pipelineBuilder.withDepthTestFunction(DepthTestFunction.NO_DEPTH_TEST);
+			pipelineBuilder.withColorWrite(true);
+			pipelineBuilder.withoutBlend();
+			pipelineBuilder.withPolygonMode(PolygonMode.FILL);
+			pipelineBuilder.withLocation(Identifier.parse("distanthorizons:far_fade"));
+			
+			pipelineBuilder.withVertexShader(Identifier.fromNamespaceAndPath("distanthorizons", "fade/blaze/vert"));
+			pipelineBuilder.withFragmentShader(Identifier.fromNamespaceAndPath("distanthorizons", "fade/blaze/dh_fade"));
+			
+			pipelineBuilder.withSampler("uMcColorTexture");
+			
+			pipelineBuilder.withSampler("uDhDepthTexture");
+			pipelineBuilder.withSampler("uDhColorTexture");
+			
+			pipelineBuilder.withUniform("fragUniformBlock", UniformType.UNIFORM_BUFFER);
+			
+			pipelineBuilder.withVertexFormat(BlazePostProcessUtil.createVertexFormat(), VertexFormat.Mode.TRIANGLE_FAN);
+		}
+		this.pipeline = pipelineBuilder.build();
+		
+		
+		this.vboGpuBuffer = BlazePostProcessUtil.createAndUploadScreenVertexData("McFadeRenderer");
+	}
+	
+	//endregion
+	
+	
+	
+	//========//
+	// render //
+	//========//
+	//region
+	
+	@Override
+	public void render(RenderParams renderParams)
+	{
+		this.tryInit();
+		
+		
+		if (BlazeDhMetaRenderer.INSTANCE.dhDepthTextureWrapper.isEmpty()
+			|| BlazeDhMetaRenderer.INSTANCE.dhColorTextureWrapper.isEmpty())
+		{
+			return;	
+		}
+		
+		
+		
+		// textures
+		this.dhFadeColorTextureWrapper.tryCreateOrResize();
+		this.mcColorTextureViewWrapper.tryWrap(Minecraft.getInstance().getMainRenderTarget().getColorTexture());
+		
+		{
+			int uniformBufferSize = new Std140SizeCalculator()
+				.putFloat() // uStartFadeBlockDistance
+				.putFloat() // uEndFadeBlockDistance
+				.putMat4f() // uDhInvMvmProj
+				.get();
+			
+			
+			// create data //
+			
+			float dhFarClipDistance = RenderUtil.getFarClipPlaneDistanceInBlocks();
+			float fadeStartDistance = dhFarClipDistance * 0.5f;
+			float fadeEndDistance = dhFarClipDistance * 0.9f;
+			
+			
+			Mat4f dhProjectionMatrix = RenderUtil.createLodProjectionMatrix(renderParams.mcProjectionMatrix);
+			Mat4f dhModelViewMatrix = RenderUtil.createLodModelViewMatrix(renderParams.mcModelViewMatrix);
+			
+			Mat4f inverseDhMvmProjMatrix = new Mat4f(dhProjectionMatrix);
+			inverseDhMvmProjMatrix.multiply(dhModelViewMatrix);
+			inverseDhMvmProjMatrix.invert();
+			
+			
+			
+			// upload data //
+			
+			ByteBuffer buffer = ByteBuffer.allocateDirect(uniformBufferSize);
+			buffer.order(ByteOrder.nativeOrder());
+			buffer = Std140Builder.intoBuffer(buffer)
+				.putFloat(fadeStartDistance) // uStartFadeBlockDistance
+				.putFloat(fadeEndDistance) // uEndFadeBlockDistance
+				.putMat4f(inverseDhMvmProjMatrix.createJomlMatrix()) // uDhInvMvmProj
+				.get()
+			;
+			
+			this.fragUniformBuffer = BlazeUniformUtil.createBuffer("fragUniformBlock", uniformBufferSize, this.fragUniformBuffer);
+			GpuBufferSlice bufferSlice = new GpuBufferSlice(this.fragUniformBuffer, 0, uniformBufferSize);
+			
+			COMMAND_ENCODER.writeToBuffer(bufferSlice, buffer);
+		}
+		
+		
+		this.renderFadeToTexture();
+		BlazeDhCopyRenderer.INSTANCE.render(this.dhFadeColorTextureWrapper, BlazeDhMetaRenderer.INSTANCE.dhColorTextureWrapper);
+		
+	}
+	
+	private void renderFadeToTexture()
+	{
+		try (RenderPass renderPass = COMMAND_ENCODER.createRenderPass(
+			this::getRenderPassName,
+			this.dhFadeColorTextureWrapper.textureView, 
+			/*optionalClearColorAsInt*/ OptionalInt.empty(),
+			/*depthTexture*/ null, 
+			/*optionalDepthValueAsDouble*/ OptionalDouble.empty()))
+		{
+			// MC texture
+			renderPass.bindTexture("uMcColorTexture", this.mcColorTextureViewWrapper.textureView, this.mcColorTextureViewWrapper.textureSampler);
+			
+			// DH textures
+			renderPass.bindTexture("uDhDepthTexture", BlazeDhMetaRenderer.INSTANCE.dhDepthTextureWrapper.textureView, BlazeDhMetaRenderer.INSTANCE.dhDepthTextureWrapper.textureSampler);
+			renderPass.bindTexture("uDhColorTexture", BlazeDhMetaRenderer.INSTANCE.dhColorTextureWrapper.textureView, BlazeDhMetaRenderer.INSTANCE.dhColorTextureWrapper.textureSampler);
+			
+			renderPass.setUniform("fragUniformBlock", this.fragUniformBuffer);
+			
+			renderPass.setVertexBuffer(0, this.vboGpuBuffer); // vertex buffer can only be "0" lol
+			renderPass.setPipeline(this.pipeline);
+			
+			renderPass.draw(/*indexStart*/ 0, /*indexCount*/ 4);
+		}
+	}
+	private String getRenderPassName() { return "distantHorizons:McFadeRenderer"; }
+	
+	
+	//endregion
+	
+	
+	
+}
+#endif

common/src/main/java/com/seibel/distanthorizons/common/render/blaze/postProcessing/BlazeDhFogRenderer.java

@@ -0,0 +1,363 @@
+/*
+ *    This file is part of the Distant Horizons mod
+ *    licensed under the GNU LGPL 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 Lesser 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 Lesser General Public License for more details.
+ *
+ *    You should have received a copy of the GNU Lesser General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.seibel.distanthorizons.common.render.blaze.postProcessing;
+
+#if MC_VER <= MC_1_21_10
+public class BlazeDhFogRenderer {}
+
+#else
+	
+import com.mojang.blaze3d.buffers.GpuBuffer;
+import com.mojang.blaze3d.buffers.GpuBufferSlice;
+import com.mojang.blaze3d.buffers.Std140Builder;
+import com.mojang.blaze3d.buffers.Std140SizeCalculator;
+import com.mojang.blaze3d.pipeline.BlendFunction;
+import com.mojang.blaze3d.pipeline.RenderPipeline;
+import com.mojang.blaze3d.platform.DepthTestFunction;
+import com.mojang.blaze3d.platform.DestFactor;
+import com.mojang.blaze3d.platform.PolygonMode;
+import com.mojang.blaze3d.platform.SourceFactor;
+import com.mojang.blaze3d.shaders.UniformType;
+import com.mojang.blaze3d.systems.CommandEncoder;
+import com.mojang.blaze3d.systems.GpuDevice;
+import com.mojang.blaze3d.systems.RenderPass;
+import com.mojang.blaze3d.systems.RenderSystem;
+import com.mojang.blaze3d.vertex.VertexFormat;
+import com.seibel.distanthorizons.api.enums.rendering.EDhApiFogColorMode;
+import com.seibel.distanthorizons.api.enums.rendering.EDhApiHeightFogDirection;
+import com.seibel.distanthorizons.api.enums.rendering.EDhApiHeightFogMixMode;
+import com.seibel.distanthorizons.common.render.blaze.BlazeDhMetaRenderer;
+import com.seibel.distanthorizons.common.render.blaze.apply.BlazeDhApplyRenderer;
+import com.seibel.distanthorizons.common.render.blaze.wrappers.texture.BlazeTextureWrapper;
+import com.seibel.distanthorizons.common.render.blaze.util.BlazePostProcessUtil;
+import com.seibel.distanthorizons.common.render.blaze.util.BlazeUniformUtil;
+import com.seibel.distanthorizons.core.config.Config;
+import com.seibel.distanthorizons.core.dependencyInjection.SingletonInjector;
+import com.seibel.distanthorizons.core.logging.DhLogger;
+import com.seibel.distanthorizons.core.logging.DhLoggerBuilder;
+import com.seibel.distanthorizons.core.render.RenderParams;
+import com.seibel.distanthorizons.core.util.LodUtil;
+import com.seibel.distanthorizons.core.util.math.Mat4f;
+import com.seibel.distanthorizons.core.wrapperInterfaces.minecraft.IMinecraftClientWrapper;
+import com.seibel.distanthorizons.core.wrapperInterfaces.minecraft.IMinecraftRenderWrapper;
+import com.seibel.distanthorizons.core.wrapperInterfaces.render.renderPass.IDhFogRenderer;
+import net.minecraft.resources.Identifier;
+
+import java.awt.*;
+import java.nio.ByteBuffer;
+import java.nio.ByteOrder;
+import java.util.OptionalDouble;
+import java.util.OptionalInt;
+
+/**
+ * Renders fog onto the LODs.
+ */
+public class BlazeDhFogRenderer implements IDhFogRenderer
+{
+	public static final DhLogger LOGGER = new DhLoggerBuilder().build(); 
+	
+	private static final IMinecraftClientWrapper MC = SingletonInjector.INSTANCE.get(IMinecraftClientWrapper.class);
+	private static final IMinecraftRenderWrapper MC_RENDER = SingletonInjector.INSTANCE.get(IMinecraftRenderWrapper.class);
+	
+	private static final GpuDevice GPU_DEVICE = RenderSystem.getDevice();
+	private static final CommandEncoder COMMAND_ENCODER = GPU_DEVICE.createCommandEncoder();
+	
+	public static final BlazeDhFogRenderer INSTANCE = new BlazeDhFogRenderer();
+	
+	
+	private BlazeDhApplyRenderer applyRenderer;
+	
+	private RenderPipeline pipeline;
+	private boolean init = false;
+	
+	private GpuBuffer fragUniformBuffer;
+	
+	private GpuBuffer vboGpuBuffer;
+	
+	public BlazeTextureWrapper fogColorTextureWrapper = BlazeTextureWrapper.createColor("DhFogColorTexture");
+	
+	
+	
+	//=============//
+	// constructor //
+	//=============//
+	//region
+	
+	private BlazeDhFogRenderer() { }
+	
+	private void tryInit()
+	{
+		if (this.init)
+		{
+			return;
+		}
+		this.init = true;
+		
+		
+		
+		
+		this.applyRenderer = new BlazeDhApplyRenderer(
+			"fog_apply_to_dh",
+			new BlendFunction(SourceFactor.SRC_ALPHA, DestFactor.ONE_MINUS_SRC_ALPHA, SourceFactor.ONE, DestFactor.ONE_MINUS_SRC_ALPHA),
+			"apply/blaze/vert", "apply/blaze/frag"
+		);
+		
+		RenderPipeline.Builder pipelineBuilder = RenderPipeline.builder();
+		{
+			pipelineBuilder.withCull(false);
+			pipelineBuilder.withDepthWrite(false);
+			pipelineBuilder.withDepthTestFunction(DepthTestFunction.NO_DEPTH_TEST);
+			pipelineBuilder.withColorWrite(true);
+			pipelineBuilder.withoutBlend();
+			pipelineBuilder.withPolygonMode(PolygonMode.FILL);
+			pipelineBuilder.withLocation(Identifier.parse("distanthorizons:fog_render"));
+			
+			pipelineBuilder.withVertexShader(Identifier.fromNamespaceAndPath("distanthorizons", "fog/blaze/vert"));
+			pipelineBuilder.withFragmentShader(Identifier.fromNamespaceAndPath("distanthorizons", "fog/blaze/frag"));
+			
+			pipelineBuilder.withSampler("uDhDepthTexture");
+			
+			pipelineBuilder.withUniform("fragUniformBlock", UniformType.UNIFORM_BUFFER);
+			
+			pipelineBuilder.withVertexFormat(BlazePostProcessUtil.createVertexFormat(), VertexFormat.Mode.TRIANGLE_FAN);
+		}
+		this.pipeline = pipelineBuilder.build();
+		
+		
+		this.vboGpuBuffer = BlazePostProcessUtil.createAndUploadScreenVertexData("McFogRenderer");
+	}
+	
+	//endregion
+	
+	
+	
+	//========//
+	// render //
+	//========//
+	//region
+	
+	@Override
+	public void render(RenderParams renderParams)
+	{
+		this.tryInit();
+		
+		
+		if (BlazeDhMetaRenderer.INSTANCE.dhDepthTextureWrapper.isEmpty()
+			|| BlazeDhMetaRenderer.INSTANCE.dhColorTextureWrapper.isEmpty())
+		{
+			return;	
+		}
+		
+		
+		
+		this.fogColorTextureWrapper.tryCreateOrResize();
+		
+		
+		{
+			int uniformBufferSize = new Std140SizeCalculator()
+				
+				// fog uniforms
+				.putVec4() // uFogColor
+				.putFloat() //uFogScale
+				.putFloat() //uFogVerticalScale
+				// only used for debugging
+				.putInt() //uFogDebugMode  // 1 = render everything with fog color // 7 = use debug rendering
+				.putInt() //uFogFalloffType
+				
+				// fog config
+				.putFloat() // uFarFogStart
+				.putFloat() // uFarFogLength
+				.putFloat() // uFarFogMin
+				.putFloat() // uFarFogRange 
+				.putFloat() // uFarFogDensity
+				
+				// height fog config
+				.putFloat() // uHeightFogStart
+				.putFloat() // uHeightFogLength
+				.putFloat() // uHeightFogMin
+				.putFloat() // uHeightFogRange
+				.putFloat() // uHeightFogDensity
+				
+				// ??
+				.putInt() // uHeightFogEnabled
+				.putInt() // uHeightFogFalloffType
+				.putInt() // uHeightBasedOnCamera
+				.putFloat() // uHeightFogBaseHeight
+				.putInt() // uHeightFogAppliesUp
+				.putInt() // uHeightFogAppliesDown
+				.putInt() // uUseSphericalFog
+				.putInt() // uHeightFogMixingMode
+				.putFloat() // uCameraBlockYPos
+				
+				.putMat4f() // uInvMvmProj
+				
+				.get();
+			
+			
+			// create data //
+			
+			
+			int lodDrawDistance = Config.Client.Advanced.Graphics.Quality.lodChunkRenderDistanceRadius.get() * LodUtil.CHUNK_WIDTH;
+			
+			
+			Mat4f inverseMvmProjMatrix = new Mat4f(renderParams.dhMvmProjMatrix);
+			inverseMvmProjMatrix.invert();
+			
+			if (renderParams.dhMvmProjMatrix == null)
+			{
+				return;
+			}
+			
+			
+			Color fogColor = this.getFogColor(renderParams.partialTicks);
+			
+			// fog config
+			float farFogStart = Config.Client.Advanced.Graphics.Fog.farFogStart.get();
+			float farFogEnd = Config.Client.Advanced.Graphics.Fog.farFogEnd.get();
+			float farFogMin = Config.Client.Advanced.Graphics.Fog.farFogMin.get();
+			float farFogMax = Config.Client.Advanced.Graphics.Fog.farFogMax.get();
+			float farFogDensity = Config.Client.Advanced.Graphics.Fog.farFogDensity.get();
+			
+			// override fog if underwater
+			if (MC_RENDER.isFogStateSpecial())
+			{
+				// hide everything behind fog
+				farFogStart = 0.0f;
+				farFogEnd = 0.0f;
+			}
+			
+			
+			// height config
+			EDhApiHeightFogMixMode heightFogMixingMode = Config.Client.Advanced.Graphics.Fog.HeightFog.heightFogMixMode.get();
+			boolean heightFogEnabled = heightFogMixingMode != EDhApiHeightFogMixMode.SPHERICAL && heightFogMixingMode != EDhApiHeightFogMixMode.CYLINDRICAL;
+			boolean useSphericalFog = heightFogMixingMode == EDhApiHeightFogMixMode.SPHERICAL;
+			EDhApiHeightFogDirection heightFogCameraDirection = Config.Client.Advanced.Graphics.Fog.HeightFog.heightFogDirection.get();
+			
+			float heightFogStart = Config.Client.Advanced.Graphics.Fog.HeightFog.heightFogStart.get();
+			float heightFogEnd = Config.Client.Advanced.Graphics.Fog.HeightFog.heightFogEnd.get();
+			float heightFogMin = Config.Client.Advanced.Graphics.Fog.HeightFog.heightFogMin.get();
+			float heightFogMax = Config.Client.Advanced.Graphics.Fog.HeightFog.heightFogMax.get();
+			float heightFogDensity = Config.Client.Advanced.Graphics.Fog.HeightFog.heightFogDensity.get();
+			
+			
+			// upload data //
+			
+			ByteBuffer buffer = ByteBuffer.allocateDirect(uniformBufferSize);
+			buffer.order(ByteOrder.nativeOrder());
+			buffer = Std140Builder.intoBuffer(buffer)
+				
+				// fog uniforms
+				.putVec4(
+					fogColor.getRed() / 255.0f, 
+					fogColor.getGreen() / 255.0f, 
+					fogColor.getBlue() / 255.0f, 
+					fogColor.getAlpha() / 255.0f) // uFogColor
+				.putFloat(1.f / lodDrawDistance) //uFogScale
+				.putFloat(1.f / MC.getWrappedClientLevel().getMaxHeight()) //uFogVerticalScale
+				// only used for debugging
+				.putInt(0) //uFogDebugMode  // 1 = render everything with fog color // 7 = use debug rendering
+				.putInt(Config.Client.Advanced.Graphics.Fog.farFogFalloff.get().value) //uFogFalloffType
+				
+				// fog config
+				.putFloat(farFogStart) // uFarFogStart
+				.putFloat(farFogEnd - farFogStart) // uFarFogLength
+				.putFloat(farFogMin) // uFarFogMin
+				.putFloat(farFogMax - farFogMin) // uFarFogRange 
+				.putFloat(farFogDensity) // uFarFogDensity
+				
+				// height fog config
+				.putFloat(heightFogStart) // uHeightFogStart
+				.putFloat(heightFogEnd - heightFogStart) // uHeightFogLength
+				.putFloat(heightFogMin) // uHeightFogMin
+				.putFloat(heightFogMax - heightFogMin) // uHeightFogRange
+				.putFloat(heightFogDensity) // uHeightFogDensity
+				
+				// ??
+				.putInt(heightFogEnabled ? 1 : 0) // uHeightFogEnabled
+				.putInt(Config.Client.Advanced.Graphics.Fog.HeightFog.heightFogFalloff.get().value) // uHeightFogFalloffType
+				.putInt(heightFogCameraDirection.basedOnCamera ? 1 : 0) // uHeightBasedOnCamera
+				.putFloat(Config.Client.Advanced.Graphics.Fog.HeightFog.heightFogBaseHeight.get()) // uHeightFogBaseHeight
+				.putInt(heightFogCameraDirection.fogAppliesUp ? 1 : 0) // uHeightFogAppliesUp
+				.putInt(heightFogCameraDirection.fogAppliesDown ? 1 : 0) // uHeightFogAppliesDown
+				.putInt(useSphericalFog ? 1 : 0) // uUseSphericalFog
+				.putInt(heightFogMixingMode.value) // uHeightFogMixingMode
+				.putFloat((float)MC_RENDER.getCameraExactPosition().y) // uCameraBlockYPos
+				
+				.putMat4f(inverseMvmProjMatrix.createJomlMatrix()) // uInvMvmProj
+				
+				.get()
+			;
+			
+			this.fragUniformBuffer = BlazeUniformUtil.createBuffer("fragUniformBlock", uniformBufferSize, this.fragUniformBuffer);
+			GpuBufferSlice bufferSlice = new GpuBufferSlice(this.fragUniformBuffer, 0, uniformBufferSize);
+			
+			COMMAND_ENCODER.writeToBuffer(bufferSlice, buffer);
+		}
+		
+		
+		this.renderFogToTexture();
+		this.applyRenderer.render(this.fogColorTextureWrapper.texture, BlazeDhMetaRenderer.INSTANCE.dhDepthTextureWrapper.texture, BlazeDhMetaRenderer.INSTANCE.dhColorTextureWrapper.texture);
+		
+	}
+	
+	private Color getFogColor(float partialTicks)
+	{
+		Color fogColor;
+		
+		if (Config.Client.Advanced.Graphics.Fog.colorMode.get() == EDhApiFogColorMode.USE_SKY_COLOR)
+		{
+			fogColor = MC_RENDER.getSkyColor();
+		}
+		else
+		{
+			fogColor = MC_RENDER.getFogColor(partialTicks);
+		}
+		
+		return fogColor;
+	}
+	
+	private void renderFogToTexture()
+	{
+		try (RenderPass renderPass = COMMAND_ENCODER.createRenderPass(
+			this::getRenderPassName,
+			this.fogColorTextureWrapper.textureView, 
+			/*optionalClearColorAsInt*/ OptionalInt.empty(),
+			/*depthTexture*/ null, 
+			/*optionalDepthValueAsDouble*/ OptionalDouble.empty()))
+		{
+			renderPass.bindTexture("uDhDepthTexture", BlazeDhMetaRenderer.INSTANCE.dhDepthTextureWrapper.textureView, BlazeDhMetaRenderer.INSTANCE.dhDepthTextureWrapper.textureSampler);
+			
+			renderPass.setUniform("fragUniformBlock", this.fragUniformBuffer);
+			
+			renderPass.setVertexBuffer(0, this.vboGpuBuffer); // vertex buffer can only be "0" lol
+			renderPass.setPipeline(this.pipeline);
+			
+			renderPass.draw(/*indexStart*/ 0, /*indexCount*/ 4);
+		}
+	}
+	private String getRenderPassName() { return "distantHorizons:McFogRenderer"; }
+	
+	
+	//endregion
+	
+	
+	
+}
+#endif

common/src/main/java/com/seibel/distanthorizons/common/render/blaze/postProcessing/BlazeDhSsaoRenderer.java

@@ -0,0 +1,283 @@
+/*
+ *    This file is part of the Distant Horizons mod
+ *    licensed under the GNU LGPL 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 Lesser 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 Lesser General Public License for more details.
+ *
+ *    You should have received a copy of the GNU Lesser General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.seibel.distanthorizons.common.render.blaze.postProcessing;
+
+#if MC_VER <= MC_1_21_10
+public class BlazeDhSsaoRenderer {}
+
+#else
+	
+import com.mojang.blaze3d.buffers.GpuBuffer;
+import com.mojang.blaze3d.buffers.GpuBufferSlice;
+import com.mojang.blaze3d.buffers.Std140Builder;
+import com.mojang.blaze3d.buffers.Std140SizeCalculator;
+import com.mojang.blaze3d.pipeline.BlendFunction;
+import com.mojang.blaze3d.pipeline.RenderPipeline;
+import com.mojang.blaze3d.platform.DepthTestFunction;
+import com.mojang.blaze3d.platform.DestFactor;
+import com.mojang.blaze3d.platform.PolygonMode;
+import com.mojang.blaze3d.platform.SourceFactor;
+import com.mojang.blaze3d.shaders.UniformType;
+import com.mojang.blaze3d.systems.CommandEncoder;
+import com.mojang.blaze3d.systems.GpuDevice;
+import com.mojang.blaze3d.systems.RenderPass;
+import com.mojang.blaze3d.systems.RenderSystem;
+import com.mojang.blaze3d.vertex.VertexFormat;
+import com.seibel.distanthorizons.common.render.blaze.BlazeDhMetaRenderer;
+import com.seibel.distanthorizons.common.render.blaze.apply.BlazeDhApplyRenderer;
+import com.seibel.distanthorizons.common.render.blaze.wrappers.texture.BlazeTextureWrapper;
+import com.seibel.distanthorizons.common.render.blaze.util.BlazePostProcessUtil;
+import com.seibel.distanthorizons.common.render.blaze.util.BlazeUniformUtil;
+import com.seibel.distanthorizons.core.dependencyInjection.SingletonInjector;
+import com.seibel.distanthorizons.core.logging.DhLogger;
+import com.seibel.distanthorizons.core.logging.DhLoggerBuilder;
+import com.seibel.distanthorizons.core.render.RenderParams;
+import com.seibel.distanthorizons.core.util.RenderUtil;
+import com.seibel.distanthorizons.core.util.math.Mat4f;
+import com.seibel.distanthorizons.core.wrapperInterfaces.minecraft.IMinecraftRenderWrapper;
+import com.seibel.distanthorizons.core.wrapperInterfaces.render.renderPass.IDhSsaoRenderer;
+import net.minecraft.resources.Identifier;
+
+import java.nio.ByteBuffer;
+import java.nio.ByteOrder;
+import java.util.OptionalDouble;
+import java.util.OptionalInt;
+
+/** Renders SSAO to the DH LODs. */
+public class BlazeDhSsaoRenderer implements IDhSsaoRenderer
+{
+	private static final DhLogger LOGGER = new DhLoggerBuilder().build(); 
+	
+	private static final IMinecraftRenderWrapper MC_RENDER = SingletonInjector.INSTANCE.get(IMinecraftRenderWrapper.class);
+	
+	private static final GpuDevice GPU_DEVICE = RenderSystem.getDevice();
+	private static final CommandEncoder COMMAND_ENCODER = GPU_DEVICE.createCommandEncoder();
+	
+	public static final BlazeDhSsaoRenderer INSTANCE = new BlazeDhSsaoRenderer();
+	
+	
+	private BlazeDhApplyRenderer applyRenderer;
+	
+	private RenderPipeline pipeline;
+	private boolean init = false;
+	
+	private GpuBuffer fragUniformBuffer;
+	private GpuBuffer applyFragUniformBuffer;
+	
+	private GpuBuffer vboGpuBuffer;
+	
+	public BlazeTextureWrapper ssaoColorTextureWrapper = BlazeTextureWrapper.createColor("DhSsaoTexture");
+	
+	
+	
+	//=============//
+	// constructor //
+	//=============//
+	//region
+	
+	private BlazeDhSsaoRenderer() { }
+	
+	private void tryInit()
+	{
+		if (this.init)
+		{
+			return;
+		}
+		this.init = true;
+		
+		
+		this.applyRenderer = new BlazeDhApplyRenderer(
+			"ssao_apply_to_dh",
+			new BlendFunction(SourceFactor.ZERO, DestFactor.SRC_ALPHA, SourceFactor.ZERO, DestFactor.ONE),
+			"apply/blaze/vert", "ssao/blaze/apply",
+			/*uniforms*/ new String[] { "applyFragUniformBlock" }
+		);
+		
+		RenderPipeline.Builder pipelineBuilder = RenderPipeline.builder();
+		{
+			pipelineBuilder.withCull(false);
+			pipelineBuilder.withDepthWrite(false);
+			pipelineBuilder.withDepthTestFunction(DepthTestFunction.NO_DEPTH_TEST);
+			pipelineBuilder.withColorWrite(true);
+			pipelineBuilder.withoutBlend();
+			pipelineBuilder.withPolygonMode(PolygonMode.FILL);
+			pipelineBuilder.withLocation(Identifier.parse("distanthorizons:ssao_render"));
+			
+			pipelineBuilder.withVertexShader(Identifier.fromNamespaceAndPath("distanthorizons", "ssao/blaze/vert"));
+			pipelineBuilder.withFragmentShader(Identifier.fromNamespaceAndPath("distanthorizons", "ssao/blaze/frag"));
+			
+			pipelineBuilder.withSampler("uDhDepthTexture");
+			
+			pipelineBuilder.withUniform("fragUniformBlock", UniformType.UNIFORM_BUFFER);
+			
+			pipelineBuilder.withVertexFormat(BlazePostProcessUtil.createVertexFormat(), VertexFormat.Mode.TRIANGLE_FAN);
+		}
+		this.pipeline = pipelineBuilder.build();
+		
+		
+		this.vboGpuBuffer = BlazePostProcessUtil.createAndUploadScreenVertexData("McSsao");
+	}
+	
+	//endregion
+	
+	
+	
+	//========//
+	// render //
+	//========//
+	//region
+	
+	@Override
+	public void render(RenderParams renderParams)
+	{
+		this.tryInit();
+		
+		
+		if (BlazeDhMetaRenderer.INSTANCE.dhDepthTextureWrapper.isEmpty()
+			|| BlazeDhMetaRenderer.INSTANCE.dhColorTextureWrapper.isEmpty())
+		{
+			return;	
+		}
+		
+		
+		
+		// textures
+		this.ssaoColorTextureWrapper.tryCreateOrResize();
+		
+		// frag uniforms
+		{
+			int uniformBufferSize = new Std140SizeCalculator()
+				.putInt() // uSampleCount\
+				
+				.putFloat() // uRadius
+				.putFloat() // uStrength
+				.putFloat() // uMinLight
+				.putFloat() // uBias
+				.putFloat() // uFadeDistanceInBlocks
+				
+				.putMat4f() // uInvProj
+				.putMat4f() // uProj
+				.get();
+			
+			
+			// create data //
+			
+			Mat4f projMatrix = new Mat4f(renderParams.dhProjectionMatrix);
+			Mat4f invertedProjMatrix = new Mat4f(renderParams.dhProjectionMatrix);
+			invertedProjMatrix.invert();
+			
+			
+			// upload data //
+			
+			ByteBuffer buffer = ByteBuffer.allocateDirect(uniformBufferSize);
+			buffer.order(ByteOrder.nativeOrder());
+			buffer = Std140Builder.intoBuffer(buffer)
+				.putInt(6) // uSampleCount
+				
+				.putFloat(4.0f) // uRadius
+				.putFloat(0.2f) // uStrength
+				.putFloat(0.25f) // uMinLight
+				.putFloat(0.02f) // uBias
+				.putFloat(1_600.0f) // uFadeDistanceInBlocks
+				
+				.putMat4f(invertedProjMatrix.createJomlMatrix())
+				.putMat4f(projMatrix.createJomlMatrix())
+				.get()
+			;
+			
+			this.fragUniformBuffer = BlazeUniformUtil.createBuffer("fragUniformBlock", uniformBufferSize, this.fragUniformBuffer);
+			GpuBufferSlice bufferSlice = new GpuBufferSlice(this.fragUniformBuffer, 0, uniformBufferSize);
+			
+			COMMAND_ENCODER.writeToBuffer(bufferSlice, buffer);
+		}
+		
+		// apply frag uniforms
+		{
+			int uniformBufferSize = new Std140SizeCalculator()
+				.putVec2() // uViewSize
+				.putInt() // uBlurRadius
+				.putFloat() // uNearClipPlane
+				.putFloat() // uFarClipPlane
+				.get();
+			
+			
+			// create data //
+			
+			float viewWidth = (float)MC_RENDER.getTargetFramebufferViewportWidth();
+			float viewHeight = (float)MC_RENDER.getTargetFramebufferViewportHeight();
+			
+			float nearClipPlane = RenderUtil.getNearClipPlaneInBlocks();
+			float farClipPlane = RenderUtil.getFarClipPlaneDistanceInBlocks();
+			
+			
+			// upload data //
+			
+			ByteBuffer buffer = ByteBuffer.allocateDirect(uniformBufferSize);
+			buffer.order(ByteOrder.nativeOrder());
+			buffer = Std140Builder.intoBuffer(buffer)
+				.putVec2(viewWidth, viewHeight) // uViewSize
+				.putInt(2) // uBlurRadius
+				.putFloat(nearClipPlane) // uNearClipPlane
+				.putFloat(farClipPlane) // uFarClipPlane
+				.get()
+			;
+			
+			this.applyFragUniformBuffer = BlazeUniformUtil.createBuffer("applyFragUniformBlock", uniformBufferSize, this.applyFragUniformBuffer);
+			GpuBufferSlice bufferSlice = new GpuBufferSlice(this.applyFragUniformBuffer, 0, uniformBufferSize);
+			
+			COMMAND_ENCODER.writeToBuffer(bufferSlice, buffer);
+		}
+		
+		
+		this.renderSsaoToTexture();
+		
+		this.applyRenderer.setUniform("applyFragUniformBlock", this.applyFragUniformBuffer);
+		this.applyRenderer.render(this.ssaoColorTextureWrapper.texture, BlazeDhMetaRenderer.INSTANCE.dhDepthTextureWrapper.texture, BlazeDhMetaRenderer.INSTANCE.dhColorTextureWrapper.texture);
+		
+	}
+	
+	private void renderSsaoToTexture()
+	{
+		try (RenderPass renderPass = COMMAND_ENCODER.createRenderPass(
+			this::getRenderPassName,
+			this.ssaoColorTextureWrapper.textureView,
+			/*optionalClearColorAsInt*/ OptionalInt.empty(),
+			/*depthTexture*/ null,
+			/*optionalDepthValueAsDouble*/ OptionalDouble.empty()))
+		{
+			renderPass.bindTexture("uDhDepthTexture", BlazeDhMetaRenderer.INSTANCE.dhDepthTextureWrapper.textureView, BlazeDhMetaRenderer.INSTANCE.dhDepthTextureWrapper.textureSampler);
+			
+			renderPass.setUniform("fragUniformBlock", this.fragUniformBuffer);
+			
+			renderPass.setVertexBuffer(0, this.vboGpuBuffer); // vertex buffer can only be "0" lol
+			
+			renderPass.setPipeline(this.pipeline);
+			renderPass.draw(/*indexStart*/ 0, /*indexCount*/ 4);
+		}
+	}
+	private String getRenderPassName() { return "distantHorizons:McSsaoRenderer"; }
+	
+	
+	//endregion
+	
+	
+	
+}
+#endif

common/src/main/java/com/seibel/distanthorizons/common/render/blaze/postProcessing/BlazeVanillaFadeRenderer.java

@@ -0,0 +1,262 @@
+/*
+ *    This file is part of the Distant Horizons mod
+ *    licensed under the GNU LGPL 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 Lesser 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 Lesser General Public License for more details.
+ *
+ *    You should have received a copy of the GNU Lesser General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.seibel.distanthorizons.common.render.blaze.postProcessing;
+
+#if MC_VER <= MC_1_21_10
+public class BlazeVanillaFadeRenderer {}
+
+#else
+	
+import com.mojang.blaze3d.buffers.GpuBuffer;
+import com.mojang.blaze3d.buffers.GpuBufferSlice;
+import com.mojang.blaze3d.buffers.Std140Builder;
+import com.mojang.blaze3d.buffers.Std140SizeCalculator;
+import com.mojang.blaze3d.pipeline.RenderPipeline;
+import com.mojang.blaze3d.platform.DepthTestFunction;
+import com.mojang.blaze3d.platform.PolygonMode;
+import com.mojang.blaze3d.shaders.UniformType;
+import com.mojang.blaze3d.systems.CommandEncoder;
+import com.mojang.blaze3d.systems.GpuDevice;
+import com.mojang.blaze3d.systems.RenderPass;
+import com.mojang.blaze3d.systems.RenderSystem;
+import com.mojang.blaze3d.vertex.VertexFormat;
+import com.seibel.distanthorizons.common.render.blaze.BlazeDhMetaRenderer;
+import com.seibel.distanthorizons.common.render.blaze.apply.BlazeDhCopyRenderer;
+import com.seibel.distanthorizons.common.render.blaze.util.BlazePostProcessUtil;
+import com.seibel.distanthorizons.common.render.blaze.util.BlazeUniformUtil;
+import com.seibel.distanthorizons.common.render.blaze.wrappers.texture.BlazeTextureViewWrapper;
+import com.seibel.distanthorizons.common.render.blaze.wrappers.texture.BlazeTextureWrapper;
+import com.seibel.distanthorizons.core.config.Config;
+import com.seibel.distanthorizons.core.dependencyInjection.SingletonInjector;
+import com.seibel.distanthorizons.core.logging.DhLogger;
+import com.seibel.distanthorizons.core.logging.DhLoggerBuilder;
+import com.seibel.distanthorizons.core.render.RenderParams;
+import com.seibel.distanthorizons.core.util.RenderUtil;
+import com.seibel.distanthorizons.core.util.math.Mat4f;
+import com.seibel.distanthorizons.core.wrapperInterfaces.minecraft.IMinecraftRenderWrapper;
+import com.seibel.distanthorizons.core.wrapperInterfaces.render.renderPass.IDhVanillaFadeRenderer;
+import net.minecraft.client.Minecraft;
+import net.minecraft.resources.Identifier;
+
+import java.nio.ByteBuffer;
+import java.nio.ByteOrder;
+import java.util.OptionalDouble;
+import java.util.OptionalInt;
+
+/**
+ * Fades the vanilla chunks
+ * into DH's LODs.
+ */
+public class BlazeVanillaFadeRenderer implements IDhVanillaFadeRenderer
+{
+	public static final DhLogger LOGGER = new DhLoggerBuilder().build(); 
+	
+	private static final IMinecraftRenderWrapper MC_RENDER = SingletonInjector.INSTANCE.get(IMinecraftRenderWrapper.class);
+	
+	private static final GpuDevice GPU_DEVICE = RenderSystem.getDevice();
+	private static final CommandEncoder COMMAND_ENCODER = GPU_DEVICE.createCommandEncoder();
+	
+	public static final BlazeVanillaFadeRenderer INSTANCE = new BlazeVanillaFadeRenderer();
+	
+	private RenderPipeline pipeline;
+	private boolean init = false;
+	
+	private GpuBuffer fragUniformBuffer;
+	
+	private GpuBuffer vboGpuBuffer;
+	
+	public final BlazeTextureWrapper fadeColorTextureWrapper = BlazeTextureWrapper.createColor("DhVanillaFadeTexture");
+	
+	public final BlazeTextureViewWrapper mcDepthTextureWrapper = new BlazeTextureViewWrapper();
+	public final BlazeTextureViewWrapper mcColorTextureWrapper = new BlazeTextureViewWrapper();
+	
+	
+	
+	//=============//
+	// constructor //
+	//=============//
+	//region
+	
+	private BlazeVanillaFadeRenderer() { }
+	
+	private void tryInit()
+	{
+		if (this.init)
+		{
+			return;
+		}
+		this.init = true;
+		
+		
+		
+		RenderPipeline.Builder pipelineBuilder = RenderPipeline.builder();
+		{
+			pipelineBuilder.withCull(false);
+			pipelineBuilder.withDepthWrite(false);
+			pipelineBuilder.withDepthTestFunction(DepthTestFunction.NO_DEPTH_TEST);
+			pipelineBuilder.withColorWrite(true);
+			pipelineBuilder.withoutBlend();
+			pipelineBuilder.withPolygonMode(PolygonMode.FILL);
+			pipelineBuilder.withLocation(Identifier.parse("distanthorizons:mc_vanilla_fade_render"));
+			
+			pipelineBuilder.withVertexShader(Identifier.fromNamespaceAndPath("distanthorizons", "fade/blaze/vert"));
+			pipelineBuilder.withFragmentShader(Identifier.fromNamespaceAndPath("distanthorizons", "fade/blaze/vanilla_fade"));
+			
+			pipelineBuilder.withSampler("uMcDepthTexture");
+			pipelineBuilder.withSampler("uCombinedMcDhColorTexture");
+			
+			pipelineBuilder.withSampler("uDhDepthTexture");
+			pipelineBuilder.withSampler("uDhColorTexture");
+			
+			pipelineBuilder.withUniform("fragUniformBlock", UniformType.UNIFORM_BUFFER);
+			
+			pipelineBuilder.withVertexFormat(BlazePostProcessUtil.createVertexFormat(), VertexFormat.Mode.TRIANGLE_FAN);
+		}
+		this.pipeline = pipelineBuilder.build();
+		
+		
+		this.vboGpuBuffer = BlazePostProcessUtil.createAndUploadScreenVertexData("McFadeRenderer");
+	}
+	
+	//endregion
+	
+	
+	
+	//========//
+	// render //
+	//========//
+	//region
+	
+	@Override
+	public void render(RenderParams renderParams)
+	{
+		this.tryInit();
+		
+		if (BlazeDhMetaRenderer.INSTANCE.dhDepthTextureWrapper.isEmpty()
+			|| BlazeDhMetaRenderer.INSTANCE.dhColorTextureWrapper.isEmpty())
+		{
+			return;	
+		}
+		
+		
+		// textures
+		this.fadeColorTextureWrapper.tryCreateOrResize();
+		
+		this.mcDepthTextureWrapper.tryWrap(Minecraft.getInstance().getMainRenderTarget().getDepthTexture());
+		this.mcColorTextureWrapper.tryWrap(Minecraft.getInstance().getMainRenderTarget().getColorTexture());
+		
+		
+		{
+			int uniformBufferSize = new Std140SizeCalculator()
+				.putInt() // uOnlyRenderLods
+				.putFloat() // uStartFadeBlockDistance
+				.putFloat() // uEndFadeBlockDistance
+				.putFloat() // uMaxLevelHeight
+				.putMat4f() // uDhInvMvmProj
+				.putMat4f() // uMcInvMvmProj
+				.get();
+			
+			
+			// create data //
+			
+			float dhNearClipDistance = RenderUtil.getNearClipPlaneInBlocks();
+			// this added value prevents the near clip plane and discard circle from touching, which looks bad
+			dhNearClipDistance += 16f;
+			
+			// measured in blocks
+			// these multipliers in James' tests should provide a fairly smooth transition
+			// without having underdraw issues
+			float fadeStartDistance = dhNearClipDistance * 1.5f;
+			float fadeEndDistance = dhNearClipDistance * 1.9f;
+			
+			
+			Mat4f inverseMcModelViewProjectionMatrix = new Mat4f(renderParams.mcProjectionMatrix);
+			inverseMcModelViewProjectionMatrix.multiply(renderParams.mcModelViewMatrix);
+			inverseMcModelViewProjectionMatrix.invert();
+			Mat4f inverseMcMvmProjMatrix = inverseMcModelViewProjectionMatrix;
+			
+			
+			Mat4f dhProjectionMatrix = RenderUtil.createLodProjectionMatrix(renderParams.mcProjectionMatrix);
+			Mat4f dhModelViewMatrix = RenderUtil.createLodModelViewMatrix(renderParams.mcModelViewMatrix);
+			
+			Mat4f inverseDhModelViewProjectionMatrix = new Mat4f(dhProjectionMatrix);
+			inverseDhModelViewProjectionMatrix.multiply(dhModelViewMatrix);
+			inverseDhModelViewProjectionMatrix.invert();
+			Mat4f inverseDhMvmProjMatrix = inverseDhModelViewProjectionMatrix;
+			
+			
+			
+			// upload data //
+			
+			ByteBuffer buffer = ByteBuffer.allocateDirect(uniformBufferSize);
+			buffer.order(ByteOrder.nativeOrder());
+			buffer = Std140Builder.intoBuffer(buffer)
+				.putInt(Config.Client.Advanced.Debugging.lodOnlyMode.get() ? 1 : 0) // uOnlyRenderLods
+				.putFloat(fadeStartDistance) // uStartFadeBlockDistance
+				.putFloat(fadeEndDistance) // uEndFadeBlockDistance
+				.putFloat(renderParams.clientLevelWrapper.getMaxHeight()) // uMaxLevelHeight
+				.putMat4f(inverseDhMvmProjMatrix.createJomlMatrix()) // uDhInvMvmProj
+				.putMat4f(inverseMcMvmProjMatrix.createJomlMatrix()) // uMcInvMvmProj
+				.get()
+			;
+			
+			this.fragUniformBuffer = BlazeUniformUtil.createBuffer("fragUniformBlock", uniformBufferSize, this.fragUniformBuffer);
+			GpuBufferSlice bufferSlice = new GpuBufferSlice(this.fragUniformBuffer, 0, uniformBufferSize);
+			
+			COMMAND_ENCODER.writeToBuffer(bufferSlice, buffer);
+		}
+		
+		
+		this.renderFadeToTexture();
+		BlazeDhCopyRenderer.INSTANCE.render(this.fadeColorTextureWrapper, this.mcColorTextureWrapper);
+		
+	}
+	
+	private void renderFadeToTexture()
+	{
+		try (RenderPass renderPass = COMMAND_ENCODER.createRenderPass(
+			this::getRenderPassName,
+			this.fadeColorTextureWrapper.textureView,
+			/*optionalClearColorAsInt*/ OptionalInt.empty(),
+			/*depthTexture*/ null, 
+			/*optionalDepthValueAsDouble*/ OptionalDouble.empty()))
+		{
+			renderPass.bindTexture("uMcDepthTexture", this.mcDepthTextureWrapper.textureView, this.mcDepthTextureWrapper.textureSampler);
+			renderPass.bindTexture("uCombinedMcDhColorTexture", this.mcColorTextureWrapper.textureView, this.mcColorTextureWrapper.textureSampler);
+			
+			renderPass.bindTexture("uDhDepthTexture", BlazeDhMetaRenderer.INSTANCE.dhDepthTextureWrapper.textureView, BlazeDhMetaRenderer.INSTANCE.dhDepthTextureWrapper.textureSampler);
+			renderPass.bindTexture("uDhColorTexture", BlazeDhMetaRenderer.INSTANCE.dhColorTextureWrapper.textureView, BlazeDhMetaRenderer.INSTANCE.dhColorTextureWrapper.textureSampler);
+			
+			renderPass.setUniform("fragUniformBlock", this.fragUniformBuffer);
+			
+			renderPass.setVertexBuffer(0, this.vboGpuBuffer); // vertex buffer can only be "0" lol
+			
+			renderPass.setPipeline(this.pipeline);
+			renderPass.draw(/*indexStart*/ 0, /*indexCount*/ 4);
+		}
+	}
+	private String getRenderPassName() { return "distantHorizons:McFadeRenderer"; }
+	
+	//endregion
+	
+	
+	
+}
+#endif

common/src/main/java/com/seibel/distanthorizons/common/render/blaze/test/BlazeDhTestTriangleRenderer.java

@@ -0,0 +1,192 @@
+/*
+ *    This file is part of the Distant Horizons mod
+ *    licensed under the GNU LGPL 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 Lesser 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 Lesser General Public License for more details.
+ *
+ *    You should have received a copy of the GNU Lesser General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.seibel.distanthorizons.common.render.blaze.test;
+
+#if MC_VER <= MC_1_21_10
+public class BlazeDhTestTriangleRenderer {}
+
+#else
+	
+import com.mojang.blaze3d.buffers.GpuBuffer;
+import com.mojang.blaze3d.buffers.GpuBufferSlice;
+import com.mojang.blaze3d.pipeline.RenderPipeline;
+import com.mojang.blaze3d.platform.DepthTestFunction;
+import com.mojang.blaze3d.platform.PolygonMode;
+import com.mojang.blaze3d.systems.CommandEncoder;
+import com.mojang.blaze3d.systems.GpuDevice;
+import com.mojang.blaze3d.systems.RenderPass;
+import com.mojang.blaze3d.systems.RenderSystem;
+import com.mojang.blaze3d.textures.*;
+import com.mojang.blaze3d.vertex.VertexFormat;
+import com.seibel.distanthorizons.common.render.blaze.util.BlazeDhVertexFormatUtil;
+import com.seibel.distanthorizons.core.logging.DhLogger;
+import com.seibel.distanthorizons.core.logging.DhLoggerBuilder;
+import com.seibel.distanthorizons.core.render.RenderParams;
+import com.seibel.distanthorizons.core.wrapperInterfaces.render.renderPass.IDhTestTriangleRenderer;
+import net.minecraft.client.Minecraft;
+import net.minecraft.resources.Identifier;
+
+import java.nio.ByteBuffer;
+import java.nio.ByteOrder;
+import java.util.OptionalDouble;
+import java.util.OptionalInt;
+
+/**
+ * Renders the OpenGL/Vulkan triangle
+ * to the center of the screen to confirm DH's
+ * apply shader is running correctly
+ */
+public class BlazeDhTestTriangleRenderer implements IDhTestTriangleRenderer
+{
+	public static final DhLogger LOGGER = new DhLoggerBuilder().build();
+	
+	private static final GpuDevice GPU_DEVICE = RenderSystem.getDevice();
+	private static final CommandEncoder COMMAND_ENCODER = GPU_DEVICE.createCommandEncoder();
+	
+	public static final BlazeDhTestTriangleRenderer INSTANCE = new BlazeDhTestTriangleRenderer();
+	
+	private RenderPipeline pipeline;
+	private boolean init = false;
+	
+	private GpuTextureView mcColorTextureView;
+	
+	private GpuBuffer vboGpuBuffer;
+	
+	
+	
+	//=============//
+	// constructor //
+	//=============//
+	//region
+	
+	private BlazeDhTestTriangleRenderer() { }
+	
+	private void tryInit()
+	{
+		if (this.init)
+		{
+			return;
+		}
+		this.init = true;
+		
+		
+		
+		VertexFormat vertexFormat = VertexFormat.builder()
+			.add("vPosition", BlazeDhVertexFormatUtil.SCREEN_POS)
+			.add("vColor", BlazeDhVertexFormatUtil.RGBA_FLOAT_COLOR)
+			.build();
+		
+		//int breakpointOne = 0;
+		// needs to manually be set if the VertexFormatElement isn't registered
+		//this.vertexFormat.getOffsetsByElement()[this.posForm.id()] = 0;
+		//this.vertexFormat.getOffsetsByElement()[this.colForm.id()] = Float.BYTES * 2;
+		//
+		//int breakpointTwo = 0;
+		
+		
+		RenderPipeline.Builder pipelineBuilder = RenderPipeline.builder();
+		{
+			pipelineBuilder.withCull(false);
+			pipelineBuilder.withDepthWrite(false);
+			pipelineBuilder.withDepthTestFunction(DepthTestFunction.NO_DEPTH_TEST);
+			pipelineBuilder.withColorWrite(true);
+			pipelineBuilder.withoutBlend();
+			pipelineBuilder.withPolygonMode(PolygonMode.FILL);
+			pipelineBuilder.withLocation(Identifier.parse("distanthorizons:test_render"));
+			
+			pipelineBuilder.withVertexShader(Identifier.fromNamespaceAndPath("distanthorizons", "test/blaze/vert"));
+			pipelineBuilder.withFragmentShader(Identifier.fromNamespaceAndPath("distanthorizons", "test/blaze/frag"));
+			
+			pipelineBuilder.withVertexFormat(vertexFormat, VertexFormat.Mode.TRIANGLES);
+		}
+		this.pipeline = pipelineBuilder.build();
+		
+		
+		this.mcColorTextureView = GPU_DEVICE.createTextureView(Minecraft.getInstance().getMainRenderTarget().getColorTexture());
+		
+		
+		this.uploadVertexData();
+	}
+	private void uploadVertexData()
+	{
+		// vertices for the OpenGL/Vulkan Triangle
+		float[] vertices = new float[]
+			{
+				// PosX,Y,    ColorR,G,B,A
+				-0.5f, -0.5f,   1.0f, 0.0f, 0.0f, 1.0f,
+				0.5f, -0.5f,   0.0f, 1.0f, 0.0f, 1.0f,
+				0.0f,  0.5f,   0.0f, 0.0f, 1.0f, 1.0f,
+			};
+		
+		
+		int usage = GpuBuffer.USAGE_COPY_DST
+			| GpuBuffer.USAGE_VERTEX;
+		int size = vertices.length * Float.BYTES;
+		this.vboGpuBuffer = GPU_DEVICE.createBuffer(this::getRenderPassName, usage, size);
+		
+		{
+			int offset = 0;
+			int length = vertices.length * Float.BYTES;
+			GpuBufferSlice bufferSlice = new GpuBufferSlice(this.vboGpuBuffer, offset, length);
+			
+			ByteBuffer byteBuffer = ByteBuffer.allocateDirect(vertices.length * Float.BYTES);
+			// Fill buffer with vertices.
+			byteBuffer.order(ByteOrder.nativeOrder());
+			byteBuffer.asFloatBuffer().put(vertices);
+			byteBuffer.rewind();
+			
+			COMMAND_ENCODER.writeToBuffer(bufferSlice, byteBuffer);
+		}
+	}
+	
+	//endregion
+	
+	
+	
+	//========//
+	// render //
+	//========//
+	//region
+	
+	@Override
+	public void render(RenderParams renderParams)
+	{
+		this.tryInit();
+		
+		try (RenderPass renderPass = COMMAND_ENCODER.createRenderPass(
+			this::getRenderPassName,
+			this.mcColorTextureView,
+			/*optionalClearColorAsInt*/ OptionalInt.empty(),
+			/*mcDepthTextureView*/ null, 
+			/*optionalDepthValueAsDouble*/ OptionalDouble.empty()))
+		{
+			renderPass.setVertexBuffer(0, this.vboGpuBuffer);
+			renderPass.setPipeline(this.pipeline);
+			renderPass.draw(/*indexStart*/ 0, /*indexCount*/ 3);
+		}
+	}
+	private String getRenderPassName() { return "distantHorizons:DhTestRenderer"; }
+	
+	//endregion
+	
+	
+	
+}
+#endif

common/src/main/java/com/seibel/distanthorizons/common/render/blaze/util/BlazeDhVertexFormatUtil.java

@@ -0,0 +1,105 @@
+package com.seibel.distanthorizons.common.render.blaze.util;
+
+#if MC_VER <= MC_1_21_10
+public class BlazeDhVertexFormatUtil {}
+
+#else
+	
+import com.mojang.blaze3d.vertex.VertexFormatElement;
+import com.seibel.distanthorizons.api.enums.config.EDhApiRenderApi;
+import com.seibel.distanthorizons.core.config.Config;
+import com.seibel.distanthorizons.core.dataObjects.render.bufferBuilding.LodQuadBuilder;
+import com.seibel.distanthorizons.core.dependencyInjection.SingletonInjector;
+import com.seibel.distanthorizons.core.logging.DhLogger;
+import com.seibel.distanthorizons.core.logging.DhLoggerBuilder;
+import com.seibel.distanthorizons.core.wrapperInterfaces.IVersionConstants;
+import com.seibel.distanthorizons.core.wrapperInterfaces.minecraft.IMinecraftClientWrapper;
+
+/**
+ * @see LodQuadBuilder
+ */
+public class BlazeDhVertexFormatUtil
+{
+	private static final DhLogger LOGGER = new DhLoggerBuilder().build();
+	
+	
+	
+	public static final VertexFormatElement SCREEN_POS;
+	public static final VertexFormatElement RGBA_FLOAT_COLOR;
+	
+	public static final VertexFormatElement SHORT_XYZ_POS;
+	public static final VertexFormatElement BYTE_PAD;
+	/** contains light and micro-offset */
+	public static final VertexFormatElement META;
+	public static final VertexFormatElement RGBA_UBYTE_COLOR;
+	public static final VertexFormatElement IRIS_MATERIAL;
+	public static final VertexFormatElement IRIS_NORMAL;
+	
+	public static final VertexFormatElement FLOAT_XYZ_POS;
+	
+	
+	
+	
+	static
+	{
+		EDhApiRenderApi renderingApi = Config.Client.Advanced.Graphics.Experimental.renderingApi.get();
+		if (renderingApi == EDhApiRenderApi.AUTO)
+		{
+			IVersionConstants versionConstants = SingletonInjector.INSTANCE.get(IVersionConstants.class);
+			renderingApi = versionConstants.getDefaultRenderingApi();
+		}
+		
+		boolean register = (renderingApi == EDhApiRenderApi.BLAZE_3D);
+		if (register)
+		{
+			LOGGER.debug("Attempting to register ["+VertexFormatElement.class.getSimpleName()+"]...");
+			
+			try
+			{
+				SCREEN_POS = VertexFormatElement.register(/*id*/22, /*index*/0, VertexFormatElement.Type.FLOAT, VertexFormatElement.Usage.POSITION, /*count*/ 2);
+				RGBA_FLOAT_COLOR = VertexFormatElement.register(/*id*/23, /*index*/0, VertexFormatElement.Type.FLOAT, VertexFormatElement.Usage.COLOR, /*count*/ 4);
+				
+				SHORT_XYZ_POS = VertexFormatElement.register(/*id*/24, /*index*/0, VertexFormatElement.Type.USHORT, VertexFormatElement.Usage.POSITION, /*count*/ 3);
+				BYTE_PAD = VertexFormatElement.register(/*id*/25, /*index*/0, VertexFormatElement.Type.BYTE, VertexFormatElement.Usage.GENERIC, /*count*/ 1);
+				
+				META = VertexFormatElement.register(/*id*/26, /*index*/0, VertexFormatElement.Type.USHORT, VertexFormatElement.Usage.GENERIC, /*count*/ 1);
+				RGBA_UBYTE_COLOR = VertexFormatElement.register(/*id*/27, /*index*/0, VertexFormatElement.Type.UBYTE, VertexFormatElement.Usage.COLOR, /*count*/ 4);
+				IRIS_MATERIAL = VertexFormatElement.register(/*id*/28, /*index*/0, VertexFormatElement.Type.BYTE, VertexFormatElement.Usage.GENERIC, /*count*/ 1);
+				IRIS_NORMAL = VertexFormatElement.register(/*id*/29, /*index*/0, VertexFormatElement.Type.BYTE, VertexFormatElement.Usage.GENERIC, /*count*/ 1);
+				
+				FLOAT_XYZ_POS = VertexFormatElement.register(/*id*/30, /*index*/0, VertexFormatElement.Type.FLOAT, VertexFormatElement.Usage.POSITION, /*count*/ 3);
+			}
+			catch (Exception e)
+			{
+				String message = "Unable to register one or more ["+VertexFormatElement.class.getSimpleName()+"] this is likely caused by another mod registering their own custom ["+VertexFormatElement.class.getSimpleName()+"]'s. This should be fixed in the next major Minecraft version.";
+				
+				IMinecraftClientWrapper mc = SingletonInjector.INSTANCE.get(IMinecraftClientWrapper.class);
+				mc.crashMinecraft(message, new Exception(message, e));
+				
+				// here to make the compiler happy, the process should shut down before this
+				throw new RuntimeException(e);
+			}
+			
+			LOGGER.debug("Successfully registered ["+VertexFormatElement.class.getSimpleName()+"].");
+		}
+		else
+		{
+			SCREEN_POS = null;
+			RGBA_FLOAT_COLOR = null;
+			
+			SHORT_XYZ_POS = null;
+			BYTE_PAD = null;
+			
+			META = null;
+			RGBA_UBYTE_COLOR = null;
+			IRIS_MATERIAL = null;
+			IRIS_NORMAL = null;
+			
+			FLOAT_XYZ_POS = null;
+		}
+	}
+	
+	
+	
+}
+#endif

common/src/main/java/com/seibel/distanthorizons/common/render/blaze/util/BlazePostProcessUtil.java

@@ -0,0 +1,81 @@
+package com.seibel.distanthorizons.common.render.blaze.util;
+
+#if MC_VER <= MC_1_21_10
+public class BlazePostProcessUtil {}
+
+#else
+	
+import com.mojang.blaze3d.buffers.GpuBuffer;
+import com.mojang.blaze3d.buffers.GpuBufferSlice;
+import com.mojang.blaze3d.systems.CommandEncoder;
+import com.mojang.blaze3d.systems.GpuDevice;
+import com.mojang.blaze3d.systems.RenderSystem;
+import com.mojang.blaze3d.vertex.VertexFormat;
+
+import java.nio.ByteBuffer;
+import java.nio.ByteOrder;
+import java.util.function.Supplier;
+
+/** Contains code that's used by all post-processing effects. */
+public class BlazePostProcessUtil
+{
+	
+	private static final GpuDevice GPU_DEVICE = RenderSystem.getDevice();
+	private static final CommandEncoder COMMAND_ENCODER = GPU_DEVICE.createCommandEncoder();
+	
+	// vertices for a full-screen quad
+	private static final float[] VERTICES = new float[]
+		{
+			// PosX,Y,
+			-1f, -1f,
+			1f, -1f,
+			1f,  1f,
+			-1f,  1f,
+		};
+	
+	
+	
+	//=========//
+	// methods //
+	//=========//
+	//region
+	
+	public static GpuBuffer createAndUploadScreenVertexData(String name)
+	{
+		Supplier<String> labelSupplier = () -> "distantHorizons:"+name;
+		
+		int usage = GpuBuffer.USAGE_COPY_DST
+			| GpuBuffer.USAGE_VERTEX;
+		int size = VERTICES.length * Float.BYTES;
+		GpuBuffer vboGpuBuffer = GPU_DEVICE.createBuffer(labelSupplier, usage, size);
+		
+		{
+			int length = VERTICES.length * Float.BYTES;
+			GpuBufferSlice bufferSlice = new GpuBufferSlice(vboGpuBuffer, /*offset*/ 0, length);
+			
+			ByteBuffer byteBuffer = ByteBuffer.allocateDirect(VERTICES.length * Float.BYTES);
+			// Fill buffer with vertices.
+			byteBuffer.order(ByteOrder.nativeOrder());
+			byteBuffer.asFloatBuffer().put(VERTICES);
+			byteBuffer.rewind();
+			
+			COMMAND_ENCODER.writeToBuffer(bufferSlice, byteBuffer);
+		}
+		
+		return vboGpuBuffer;
+	}
+	
+	public static VertexFormat createVertexFormat()
+	{
+		VertexFormat vertexFormat = VertexFormat.builder()
+			.add("vPosition", BlazeDhVertexFormatUtil.SCREEN_POS)
+			.build();
+		return vertexFormat;
+	}
+	
+	//endregion
+	
+	
+	
+}
+#endif

common/src/main/java/com/seibel/distanthorizons/common/render/blaze/util/BlazeUniformUtil.java

@@ -0,0 +1,38 @@
+package com.seibel.distanthorizons.common.render.blaze.util;
+
+#if MC_VER <= MC_1_21_10
+public class BlazeUniformUtil {}
+
+#else
+	
+import com.mojang.blaze3d.buffers.GpuBuffer;
+import com.mojang.blaze3d.systems.CommandEncoder;
+import com.mojang.blaze3d.systems.GpuDevice;
+import com.mojang.blaze3d.systems.RenderSystem;
+
+public class BlazeUniformUtil
+{
+	private static final GpuDevice GPU_DEVICE = RenderSystem.getDevice();
+	private static final CommandEncoder COMMAND_ENCODER = GPU_DEVICE.createCommandEncoder();
+	
+	
+	public static GpuBuffer createBuffer(String uniformName, int size, GpuBuffer vboGpuBuffer)
+	{
+		// create VBO if needed
+		if (vboGpuBuffer == null
+			|| vboGpuBuffer.size() < size)
+		{
+			// GpuBuffer.USAGE_UNIFORM = 128
+			int usage = GpuBuffer.USAGE_COPY_DST 
+				| GpuBuffer.USAGE_VERTEX
+				| GpuBuffer.USAGE_UNIFORM;
+			vboGpuBuffer = GPU_DEVICE.createBuffer(() -> uniformName, usage, size);
+		}
+		
+		return vboGpuBuffer;
+	}
+	
+	
+	
+}
+#endif

common/src/main/java/com/seibel/distanthorizons/common/render/blaze/wrappers/buffer/BlazeVertexBufferWrapper.java

@@ -0,0 +1,90 @@
+package com.seibel.distanthorizons.common.render.blaze.wrappers.buffer;
+
+#if MC_VER <= MC_1_21_10
+public class BlazeVertexBufferWrapper {}
+
+#else
+
+import com.mojang.blaze3d.buffers.GpuBuffer;
+import com.mojang.blaze3d.buffers.GpuBufferSlice;
+import com.mojang.blaze3d.systems.CommandEncoder;
+import com.mojang.blaze3d.systems.GpuDevice;
+import com.mojang.blaze3d.systems.RenderSystem;
+import com.seibel.distanthorizons.core.wrapperInterfaces.render.objects.IVertexBufferWrapper;
+
+import java.nio.ByteBuffer;
+
+public class BlazeVertexBufferWrapper implements IVertexBufferWrapper
+{
+	private static final GpuDevice GPU_DEVICE = RenderSystem.getDevice();
+	private static final CommandEncoder COMMAND_ENCODER = GPU_DEVICE.createCommandEncoder();
+	
+	
+	public final String name;
+	public String getName() { return this.name; }
+	
+	public GpuBuffer vboGpuBuffer = null;
+	public int vertexCount = -1;
+	public int indexCount = -1;
+	public boolean uploaded = false;
+	
+	
+	
+	//=============//
+	// constructor //
+	//=============//
+	//region
+	
+	public BlazeVertexBufferWrapper(String name) { this.name = name; }
+	
+	//endregion
+	
+	
+	
+	//========//
+	// upload //
+	//========//
+	//region
+	
+	@Override
+	public void upload(ByteBuffer buffer, int vertexCount)
+	{
+		this.vertexCount = vertexCount;
+		// 4 vertices per face, but 6 indices (IE 2 triangles) per face, aka need to multiply by 1.5
+		this.indexCount = (int)(vertexCount * 1.5);
+		this.uploaded = true;
+		
+		
+		int usage = GpuBuffer.USAGE_COPY_DST
+			| GpuBuffer.USAGE_VERTEX;
+		int byteSize = (buffer.limit() - buffer.position());
+		this.vboGpuBuffer = GPU_DEVICE.createBuffer(this::getName, usage, byteSize);
+		
+		GpuBufferSlice bufferSlice = new GpuBufferSlice(this.vboGpuBuffer, /*offset*/0, byteSize);
+		COMMAND_ENCODER.writeToBuffer(bufferSlice, buffer);
+	}
+	
+	//endregion
+	
+	
+	
+	//================//
+	// base overrides //
+	//================//
+	//region
+	
+	@Override
+	public void close()
+	{
+		if (this.vboGpuBuffer != null)
+		{
+			this.vboGpuBuffer.close();
+		}
+	}
+	
+	//endregion
+	
+	
+	
+}
+#endif

common/src/main/java/com/seibel/distanthorizons/common/render/blaze/wrappers/texture/BlazeTextureViewWrapper.java

@@ -0,0 +1,72 @@
+package com.seibel.distanthorizons.common.render.blaze.wrappers.texture;
+
+#if MC_VER <= MC_1_21_10
+public class BlazeTextureViewWrapper {}
+
+#else
+
+import com.mojang.blaze3d.systems.CommandEncoder;
+import com.mojang.blaze3d.systems.GpuDevice;
+import com.mojang.blaze3d.systems.RenderSystem;
+import com.mojang.blaze3d.textures.*;
+import com.seibel.distanthorizons.core.logging.DhLogger;
+import com.seibel.distanthorizons.core.logging.DhLoggerBuilder;
+
+import java.util.OptionalDouble;
+
+public class BlazeTextureViewWrapper
+{
+	public static final DhLogger LOGGER = new DhLoggerBuilder().build();
+	
+	private static final GpuDevice GPU_DEVICE = RenderSystem.getDevice();
+	private static final CommandEncoder COMMAND_ENCODER = GPU_DEVICE.createCommandEncoder();
+	
+	
+	public GpuTextureView textureView = null;
+	public GpuSampler textureSampler = null;
+	
+	
+	
+	//=======//
+	// setup //
+	//=======//
+	//region
+	
+	/** does nothing if the texture is already wrapped */
+	public void tryWrap(GpuTexture texture)
+	{
+		this.tryRecreateTextureView(texture);
+		this.tryCreateSampler();
+	}
+	private void tryRecreateTextureView(GpuTexture texture)
+	{
+		if (this.textureView == null
+			|| this.textureView.texture() != texture)
+		{
+			if (this.textureView != null)
+			{
+				this.textureView.close();
+			}
+			
+			this.textureView = GPU_DEVICE.createTextureView(texture);
+		}
+	}
+	private void tryCreateSampler()
+	{
+		if (this.textureSampler == null)
+		{
+			this.textureSampler = GPU_DEVICE.createSampler(
+				AddressMode.CLAMP_TO_EDGE, AddressMode.CLAMP_TO_EDGE, // U,V
+				FilterMode.LINEAR, FilterMode.LINEAR, // minFilter, magFilter
+				1, // maxAnisotropy 
+				OptionalDouble.empty() // maxLod
+			);
+		}
+	}
+	
+	//endregion
+	
+	
+	
+}
+#endif

common/src/main/java/com/seibel/distanthorizons/common/render/blaze/wrappers/texture/BlazeTextureWrapper.java

@@ -0,0 +1,167 @@
+package com.seibel.distanthorizons.common.render.blaze.wrappers.texture;
+
+#if MC_VER <= MC_1_21_10
+public class BlazeTextureWrapper {}
+
+#else
+
+import com.mojang.blaze3d.buffers.GpuBuffer;
+import com.mojang.blaze3d.systems.CommandEncoder;
+import com.mojang.blaze3d.systems.GpuDevice;
+import com.mojang.blaze3d.systems.RenderSystem;
+import com.mojang.blaze3d.textures.*;
+import com.seibel.distanthorizons.core.dependencyInjection.SingletonInjector;
+import com.seibel.distanthorizons.core.logging.DhLogger;
+import com.seibel.distanthorizons.core.logging.DhLoggerBuilder;
+import com.seibel.distanthorizons.core.util.ColorUtil;
+import com.seibel.distanthorizons.core.wrapperInterfaces.minecraft.IMinecraftRenderWrapper;
+
+import java.util.OptionalDouble;
+
+public class BlazeTextureWrapper
+{
+	public static final DhLogger LOGGER = new DhLoggerBuilder().build();
+	
+	private static final IMinecraftRenderWrapper MC_RENDER = SingletonInjector.INSTANCE.get(IMinecraftRenderWrapper.class);
+	
+	private static final GpuDevice GPU_DEVICE = RenderSystem.getDevice();
+	private static final CommandEncoder COMMAND_ENCODER = GPU_DEVICE.createCommandEncoder();
+	
+	
+	public final String name;
+	public final TextureFormat textureFormat;
+	
+	public GpuTexture texture = null;
+	public GpuTextureView textureView = null;
+	public GpuSampler textureSampler = null;
+	
+	private int width = -1;
+	private int height = -1;
+	
+	
+	
+	//==============//
+	// constructors //
+	//==============//
+	//region
+	
+	public static BlazeTextureWrapper createDepth(String name) { return new BlazeTextureWrapper(name, TextureFormat.DEPTH32); }
+	public static BlazeTextureWrapper createColor(String name) { return new BlazeTextureWrapper(name, TextureFormat.RGBA8); }
+	
+	private BlazeTextureWrapper(String name, TextureFormat textureFormat)
+	{
+		this.name = name;
+		this.textureFormat = textureFormat;
+	}
+	
+	//endregion
+	
+	
+	
+	//=========//
+	// getters //
+	//=========//
+	//region
+	
+	public boolean isEmpty() { return this.texture == null; }
+	
+	/** @return -1 if the texture is null */
+	public int getWidth() { return this.width; }
+	/** @return -1 if the texture is null */
+	public int getHeight() { return this.height; }
+	
+	//endregion
+	
+	
+	
+	//=======//
+	// setup //
+	//=======//
+	//region
+	
+	/** does nothing if the texture is already created and the correct size */
+	public void tryCreateOrResize()
+	{
+		this.tryCreateTexture();
+		this.tryCreateSampler();
+	}
+	private void tryCreateTexture()
+	{
+		int viewWidth = MC_RENDER.getTargetFramebufferViewportWidth();
+		int viewHeight = MC_RENDER.getTargetFramebufferViewportHeight();
+		
+		if (this.texture == null
+			|| this.width != viewWidth
+			|| this.height != viewHeight)
+		{
+			if (this.texture != null)
+			{
+				this.texture.close();
+				this.textureView.close();
+			}
+			
+			this.width = viewWidth;
+			this.height = viewHeight;
+			
+			int usage = GpuBuffer.USAGE_HINT_CLIENT_STORAGE 
+				| GpuBuffer.USAGE_COPY_DST 
+				| GpuBuffer.USAGE_VERTEX 
+				| GpuBuffer.USAGE_UNIFORM;
+			this.texture = GPU_DEVICE.createTexture(this.name,
+				usage,
+				this.textureFormat,
+				viewWidth, viewHeight,
+				/*depthOrLayers*/ 1,  /*mipLevels*/ 1
+			);
+			this.textureView = GPU_DEVICE.createTextureView(this.texture);
+		}
+	}
+	private void tryCreateSampler()
+	{
+		if (this.textureSampler == null)
+		{
+			this.textureSampler = GPU_DEVICE.createSampler(
+				AddressMode.CLAMP_TO_EDGE, AddressMode.CLAMP_TO_EDGE, // U,V
+				FilterMode.LINEAR, FilterMode.LINEAR, // minFilter, magFilter
+				1, // maxAnisotropy 
+				OptionalDouble.empty() // maxLod
+			);
+		}
+	}
+	
+	//endregion
+	
+	
+	
+	//==========//
+	// clearing //
+	//==========//
+	//region
+	
+	/** 
+	 * Will throw an exception if not a color texture.
+	 * @see ColorUtil#argbToInt 
+	 */
+	public void clearColor(int clearArgbColor) 
+	{
+		if (this.texture != null)
+		{
+			COMMAND_ENCODER.clearColorTexture(this.texture, clearArgbColor);
+		}
+	}
+	
+	/** Will throw an exception if not a depth texture. */
+	public void clearDepth(float depth) 
+	{
+		if (this.texture != null)
+		{
+			COMMAND_ENCODER.clearDepthTexture(this.texture, depth);
+		}
+	}
+	
+	//endregion
+	
+	
+	
+}
+#endif

common/src/main/java/com/seibel/distanthorizons/common/render/blaze/wrappers/uniform/BlazeLodUniformBufferWrapper.java

@@ -0,0 +1,76 @@
+package com.seibel.distanthorizons.common.render.blaze.wrappers.uniform;
+
+#if MC_VER <= MC_1_21_10
+public class BlazeLodUniformBufferWrapper {}
+
+#else
+
+import com.mojang.blaze3d.buffers.Std140Builder;
+import com.mojang.blaze3d.buffers.Std140SizeCalculator;
+import com.seibel.distanthorizons.core.dataObjects.render.bufferBuilding.LodBufferContainer;
+import com.seibel.distanthorizons.core.util.math.Vec3f;
+import com.seibel.distanthorizons.core.wrapperInterfaces.render.objects.ILodContainerUniformBufferWrapper;
+
+import java.nio.ByteBuffer;
+
+public class BlazeLodUniformBufferWrapper extends BlazeUniformBufferWrapper implements ILodContainerUniformBufferWrapper
+{
+	
+	private boolean uploaded = false;
+	
+	
+	
+	//=============//
+	// constructor //
+	//=============//
+	//region
+	
+	public BlazeLodUniformBufferWrapper() { super(BlazeLodUniformBufferWrapper.class.getName()); }
+	
+	//endregion
+	
+	
+	
+	//========//
+	// ??? //
+	//========//
+	//region
+	
+	@Override
+	public void createUniformData(LodBufferContainer bufferContainer)
+	{
+		Vec3f modelOffset = new Vec3f(
+			(float) (bufferContainer.minCornerBlockPos.getX()),
+			(float) (bufferContainer.minCornerBlockPos.getY()),
+			(float) (bufferContainer.minCornerBlockPos.getZ()));
+		
+		// upload data //
+		
+		int uniformBufferSize = new Std140SizeCalculator()
+			.putVec3() // uModelOffset
+			.get();
+		
+		ByteBuffer buffer = this.getOrCreateBuffer(uniformBufferSize);
+		Std140Builder.intoBuffer(buffer)
+			.putVec3(modelOffset.x, modelOffset.y, modelOffset.z) // uModelOffset
+			.get();
+		
+	}
+	
+	@Override
+	public void tryUpload()
+	{
+		if (this.uploaded)
+		{
+			return;
+		}
+		
+		this.upload();
+		
+		this.uploaded = true;
+	}
+	
+	//endregion
+	
+}
+#endif

common/src/main/java/com/seibel/distanthorizons/common/render/blaze/wrappers/uniform/BlazeUniformBufferWrapper.java

@@ -0,0 +1,130 @@
+package com.seibel.distanthorizons.common.render.blaze.wrappers.uniform;
+
+#if MC_VER <= MC_1_21_10
+public class BlazeUniformBufferWrapper {}
+
+#else
+
+import com.mojang.blaze3d.buffers.GpuBuffer;
+import com.mojang.blaze3d.buffers.GpuBufferSlice;
+import com.mojang.blaze3d.systems.CommandEncoder;
+import com.mojang.blaze3d.systems.GpuDevice;
+import com.mojang.blaze3d.systems.RenderSystem;
+import com.seibel.distanthorizons.core.logging.DhLogger;
+import com.seibel.distanthorizons.core.logging.DhLoggerBuilder;
+import com.seibel.distanthorizons.core.wrapperInterfaces.render.objects.IUniformBufferWrapper;
+
+import java.nio.ByteBuffer;
+import java.nio.ByteOrder;
+
+public class BlazeUniformBufferWrapper implements IUniformBufferWrapper
+{
+	private static final DhLogger LOGGER = new DhLoggerBuilder().build();
+	
+	private static final GpuDevice GPU_DEVICE = RenderSystem.getDevice();
+	private static final CommandEncoder COMMAND_ENCODER = GPU_DEVICE.createCommandEncoder();
+	
+	
+	private final String name;
+	
+	private int cpuBufferSize = 0;
+	private int gpuBufferSize = 0;
+	
+	private ByteBuffer cpuBuffer = null;
+	public GpuBuffer gpuBuffer = null;
+	
+	
+	
+	//=============//
+	// constructor //
+	//=============//
+	//region
+	
+	public BlazeUniformBufferWrapper(String name) { this.name = name; }
+	
+	//endregion
+	
+	
+	
+	//========//
+	// render //
+	//========//
+	//region
+	
+	protected ByteBuffer getOrCreateBuffer(int size)
+	{
+		if (this.cpuBuffer == null 
+			|| this.cpuBufferSize != size)
+		{
+			this.cpuBuffer = ByteBuffer.allocateDirect(size);
+			this.cpuBuffer.order(ByteOrder.nativeOrder());
+			
+			this.cpuBufferSize = size;
+		}
+		
+		return this.cpuBuffer;
+	}
+	
+	@Override
+	public void upload() throws IllegalStateException
+	{
+		if (this.cpuBuffer == null)
+		{
+			throw new IllegalStateException("Upload called before buffer was created");
+		}
+		
+		if (this.gpuBuffer == null
+			|| this.gpuBufferSize != this.cpuBufferSize)
+		{
+			if (this.gpuBuffer != null)
+			{
+				this.gpuBuffer.close();
+			}
+			
+			int usage = GpuBuffer.USAGE_COPY_DST
+				| GpuBuffer.USAGE_VERTEX
+				| GpuBuffer.USAGE_UNIFORM;
+			this.gpuBuffer = GPU_DEVICE.createBuffer(this::getBufferName, usage, this.cpuBufferSize);
+			
+			this.gpuBufferSize = this.cpuBufferSize;
+		}
+		
+		
+		
+		int byteSize = (this.cpuBuffer.limit() - this.cpuBuffer.position());
+		GpuBufferSlice bufferSlice = new GpuBufferSlice(this.gpuBuffer, /*offset*/0, byteSize);
+		if (!bufferSlice.buffer().isClosed())
+		{
+			COMMAND_ENCODER.writeToBuffer(bufferSlice, this.cpuBuffer);
+		}
+		else
+		{
+			LOGGER.warn("Uploading to buffer ["+this.name+"] failed due to already being closed");
+		}
+	}
+	private String getBufferName() { return this.name; }
+	
+	//endregion
+	
+	
+	
+	//================//
+	// base overrides //
+	//================//
+	//region
+	
+	@Override
+	public void close()
+	{
+		if (this.gpuBuffer != null)
+		{
+			this.gpuBuffer.close();
+		}
+	}
+	
+	//endregion
+	
+	
+	
+}
+#endif

common/src/main/java/com/seibel/distanthorizons/common/render/openGl/GlDhDebugWireframeRenderer.java

@@ -0,0 +1,197 @@
+/*
+ *    This file is part of the Distant Horizons mod
+ *    licensed under the GNU LGPL 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 Lesser 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 Lesser General Public License for more details.
+ *
+ *    You should have received a copy of the GNU Lesser General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.seibel.distanthorizons.common.render.openGl;
+
+import com.seibel.distanthorizons.api.enums.config.EDhApiGpuUploadMethod;
+import com.seibel.distanthorizons.common.render.openGl.glObject.buffer.GLElementBuffer;
+import com.seibel.distanthorizons.common.render.openGl.glObject.buffer.GLVertexBuffer;
+import com.seibel.distanthorizons.common.render.openGl.glObject.shader.GlShaderProgram;
+import com.seibel.distanthorizons.common.render.openGl.glObject.vertexAttribute.GlAbstractVertexAttribute;
+import com.seibel.distanthorizons.common.render.openGl.glObject.vertexAttribute.GlVertexPointer;
+import com.seibel.distanthorizons.common.wrappers.minecraft.MinecraftGLWrapper;
+import com.seibel.distanthorizons.core.logging.DhLogger;
+import com.seibel.distanthorizons.core.logging.DhLoggerBuilder;
+import com.seibel.distanthorizons.core.render.RenderParams;
+import com.seibel.distanthorizons.core.render.renderer.AbstractDebugWireframeRenderer;
+import com.seibel.distanthorizons.core.util.math.Mat4f;
+import org.lwjgl.opengl.GL32;
+
+import java.nio.ByteBuffer;
+import java.nio.ByteOrder;
+
+/**
+ * Handles rendering the wireframe particles 
+ * that are used for seeing what the system's doing.
+ */
+public class GlDhDebugWireframeRenderer extends AbstractDebugWireframeRenderer
+{
+	public static GlDhDebugWireframeRenderer INSTANCE = new GlDhDebugWireframeRenderer();
+	
+	public static final DhLogger LOGGER = new DhLoggerBuilder().build();
+	
+	private static final MinecraftGLWrapper GLMC = MinecraftGLWrapper.INSTANCE;
+	
+	
+	
+	// rendering setup
+	private GlShaderProgram basicShader;
+	private GLVertexBuffer vertexBuffer;
+	private GLElementBuffer indexBuffer;
+	private GlAbstractVertexAttribute va;
+	private boolean init = false;
+	
+	
+	
+	/** A box from 0,0,0 to 1,1,1 */
+	private static final float[] BOX_VERTICES = {
+		//region
+			// Pos x y z
+			0, 0, 0,
+			1, 0, 0,
+			1, 1, 0,
+			0, 1, 0,
+			0, 0, 1,
+			1, 0, 1,
+			1, 1, 1,
+			0, 1, 1,
+		//endregion
+	};
+
+	private static final int[] BOX_OUTLINE_INDICES = {
+		//region
+			0, 1,
+			1, 2,
+			2, 3,
+			3, 0,
+
+			4, 5,
+			5, 6,
+			6, 7,
+			7, 4,
+
+			0, 4,
+			1, 5,
+			2, 6,
+			3, 7,
+		//endregion
+	};
+	
+	
+	
+	//=============//
+	// constructor //
+	//=============//
+	//region
+	
+	private GlDhDebugWireframeRenderer() { }
+	
+	public void init()
+	{
+		if (this.init)
+		{
+			return;
+		}
+		this.init = true;
+
+		this.va = GlAbstractVertexAttribute.create();
+		this.va.bind();
+		// Pos
+		this.va.setVertexAttribute(0, 0, GlVertexPointer.addVec3Pointer(false));
+		this.va.completeAndCheck(Float.BYTES * 3);
+		this.basicShader = new GlShaderProgram(
+			"assets/distanthorizons/shaders/debug/gl/vert.vert",
+			"assets/distanthorizons/shaders/debug/gl/frag.frag",
+			"vPosition"
+		);
+		this.createBuffer();
+	}
+	
+	private void createBuffer()
+	{
+		// box vertices 
+		ByteBuffer boxVerticesBuffer = ByteBuffer.allocateDirect(BOX_VERTICES.length * Float.BYTES);
+		boxVerticesBuffer.order(ByteOrder.nativeOrder());
+		boxVerticesBuffer.asFloatBuffer().put(BOX_VERTICES);
+		boxVerticesBuffer.rewind();
+		this.vertexBuffer = new GLVertexBuffer(false);
+		this.vertexBuffer.bind();
+		this.vertexBuffer.uploadBuffer(boxVerticesBuffer, 8, EDhApiGpuUploadMethod.DATA, BOX_VERTICES.length * Float.BYTES);
+		
+		
+		// outline vertex indexes
+		ByteBuffer boxOutlineBuffer = ByteBuffer.allocateDirect(BOX_OUTLINE_INDICES.length * Integer.BYTES);
+		boxOutlineBuffer.order(ByteOrder.nativeOrder());
+		boxOutlineBuffer.asIntBuffer().put(BOX_OUTLINE_INDICES);
+		boxOutlineBuffer.rewind();
+		this.indexBuffer = new GLElementBuffer(false);
+		this.indexBuffer.uploadBuffer(boxOutlineBuffer, EDhApiGpuUploadMethod.DATA, BOX_OUTLINE_INDICES.length * Integer.BYTES, GL32.GL_STATIC_DRAW);
+		
+	}
+	
+	
+	//endregion
+	
+	
+	
+	//===========//
+	// rendering //
+	//===========//
+	//region
+	
+	@Override
+	public void render(RenderParams renderParams)
+	{
+		this.init();
+		
+		GL32.glPolygonMode(GL32.GL_FRONT_AND_BACK, GL32.GL_LINE);
+		GLMC.enableDepthTest();
+		
+		this.basicShader.bind();
+		this.va.bind();
+		this.va.bindBufferToAllBindingPoints(this.vertexBuffer.getId());
+		
+		this.indexBuffer.bind();
+		
+		super.render(renderParams);
+		
+		// revert to prevent issues with the following passes
+		GL32.glPolygonMode(GL32.GL_FRONT_AND_BACK, GL32.GL_FILL);
+	}
+	
+	@Override
+	public void renderBox(Box box)
+	{
+		Mat4f boxTransform = Mat4f.createTranslateMatrix(box.minPos.x - this.camPosFloatThisFrame.x, box.minPos.y - this.camPosFloatThisFrame.y, box.minPos.z - this.camPosFloatThisFrame.z);
+		boxTransform.multiply(Mat4f.createScaleMatrix(box.maxPos.x - box.minPos.x, box.maxPos.y - box.minPos.y, box.maxPos.z - box.minPos.z));
+
+		Mat4f transformMatrix = this.dhMvmProjMatrixThisFrame.copy();
+		transformMatrix.multiply(boxTransform);
+		this.basicShader.setUniform(this.basicShader.getUniformLocation("uTransform"), transformMatrix);
+
+		this.basicShader.setUniform(this.basicShader.getUniformLocation("uColor"), box.color);
+
+		GL32.glDrawElements(GL32.GL_LINES, BOX_OUTLINE_INDICES.length, GL32.GL_UNSIGNED_INT, 0);
+	}
+	
+	//endregion
+	
+	
+	
+}

common/src/main/java/com/seibel/distanthorizons/common/render/openGl/GlDhMetaRenderer.java

@@ -0,0 +1,474 @@
+package com.seibel.distanthorizons.common.render.openGl;
+
+import com.seibel.distanthorizons.api.enums.rendering.EDhApiRenderPass;
+import com.seibel.distanthorizons.api.interfaces.override.rendering.IDhApiFramebuffer;
+import com.seibel.distanthorizons.api.interfaces.override.rendering.IDhApiShaderProgram;
+import com.seibel.distanthorizons.api.methods.events.abstractEvents.*;
+import com.seibel.distanthorizons.api.methods.events.sharedParameterObjects.DhApiRenderParam;
+import com.seibel.distanthorizons.api.methods.events.sharedParameterObjects.DhApiTextureCreatedParam;
+import com.seibel.distanthorizons.common.render.openGl.glObject.GLProxy;
+import com.seibel.distanthorizons.common.render.openGl.glObject.GlDhFramebuffer;
+import com.seibel.distanthorizons.common.render.openGl.glObject.buffer.GlQuadElementBuffer;
+import com.seibel.distanthorizons.common.render.openGl.glObject.texture.*;
+import com.seibel.distanthorizons.common.render.openGl.postProcessing.apply.GlDhApplyShader;
+import com.seibel.distanthorizons.common.wrappers.minecraft.MinecraftGLWrapper;
+import com.seibel.distanthorizons.common.wrappers.misc.LightMapWrapper;
+import com.seibel.distanthorizons.core.config.Config;
+import com.seibel.distanthorizons.core.dataObjects.render.bufferBuilding.LodQuadBuilder;
+import com.seibel.distanthorizons.core.dependencyInjection.SingletonInjector;
+import com.seibel.distanthorizons.core.logging.DhLogger;
+import com.seibel.distanthorizons.core.logging.DhLoggerBuilder;
+import com.seibel.distanthorizons.core.render.DhApiRenderProxy;
+import com.seibel.distanthorizons.core.render.RenderParams;
+import com.seibel.distanthorizons.core.wrapperInterfaces.minecraft.IMinecraftRenderWrapper;
+import com.seibel.distanthorizons.core.wrapperInterfaces.misc.ILightMapWrapper;
+import com.seibel.distanthorizons.core.wrapperInterfaces.modAccessor.AbstractOptifineAccessor;
+import com.seibel.distanthorizons.core.wrapperInterfaces.render.renderPass.IDhMetaRenderer;
+import com.seibel.distanthorizons.coreapi.DependencyInjection.ApiEventInjector;
+import com.seibel.distanthorizons.coreapi.DependencyInjection.OverrideInjector;
+import org.jetbrains.annotations.Nullable;
+import org.lwjgl.opengl.GL32;
+
+public class GlDhMetaRenderer implements IDhMetaRenderer
+{
+	public static final DhLogger LOGGER = new DhLoggerBuilder()
+		.fileLevelConfig(Config.Common.Logging.logRendererEventToFile)
+		.build();
+	
+	public static final DhLogger RATE_LIMITED_LOGGER = new DhLoggerBuilder()
+		.fileLevelConfig(Config.Common.Logging.logRendererEventToFile)
+		.maxCountPerSecond(4)
+		.build();
+	
+	public static final GlDhMetaRenderer INSTANCE = new GlDhMetaRenderer();
+	
+	
+	private static final IMinecraftRenderWrapper MC_RENDER = SingletonInjector.INSTANCE.get(IMinecraftRenderWrapper.class);
+	private static final MinecraftGLWrapper GLMC = MinecraftGLWrapper.INSTANCE;
+	
+	
+	private int activeFramebufferId = -1;
+	private int activeColorTextureId = -1;
+	private int activeDepthTextureId = -1;
+	private int textureWidth;
+	private int textureHeight;
+	
+	
+	// framebuffer and texture ID's for this renderer
+	private IDhApiFramebuffer framebuffer;
+	/** will be null if MC's framebuffer is being used since MC already has a color texture */
+	@Nullable
+	private GlDhColorTexture nullableColorTexture;
+	private GlDhDepthTexture depthTexture;
+	/**
+	 * If true the {@link GlDhMetaRenderer#framebuffer} is the same as MC's.
+	 * This should only be true in the case of Optifine so LODs won't be overwritten when shaders are enabled.
+	 */
+	private boolean usingMcFramebuffer = false;
+	
+	private boolean renderObjectsCreated = false;
+	/** used in case there's an API override */
+	public IDhApiShaderProgram shaderProgramForThisFrame;
+	
+	
+	
+	//============//
+	// pre render //
+	//============//
+	//region
+	
+	@Override
+	public void runRenderPassSetup(RenderParams renderParams)
+	{
+		boolean firstPass =
+			(renderParams.renderPass == EDhApiRenderPass.OPAQUE
+			|| renderParams.renderPass == EDhApiRenderPass.OPAQUE_AND_TRANSPARENT);
+		
+		if (!this.renderObjectsCreated)
+		{
+			boolean setupSuccess = this.createRenderObjects();
+			if (!setupSuccess)
+			{
+				// shouldn't normally happen, but just in case
+				return;
+			}
+			
+			this.renderObjectsCreated = true;
+		}
+		
+		this.shaderProgramForThisFrame = GlDhTerrainShaderProgram.INSTANCE;
+		IDhApiShaderProgram lodShaderProgramOverride = OverrideInjector.INSTANCE.get(IDhApiShaderProgram.class);
+		if (lodShaderProgramOverride != null && this.shaderProgramForThisFrame.overrideThisFrame())
+		{
+			this.shaderProgramForThisFrame = lodShaderProgramOverride;
+		}
+		
+		
+		this.setGLState(renderParams, firstPass);
+		
+		GlDhTerrainShaderProgram.INSTANCE.quadIBO.bind();
+		this.bindLightmap(renderParams.lightmap);
+	}
+	private void setGLState(
+		DhApiRenderParam renderEventParam,
+		boolean firstPass)
+	{
+		//===================//
+		// framebuffer setup //
+		//===================//
+		
+		// get the active framebuffer
+		IDhApiFramebuffer framebuffer = this.framebuffer;
+		IDhApiFramebuffer framebufferOverride = OverrideInjector.INSTANCE.get(IDhApiFramebuffer.class);
+		if (framebufferOverride != null && framebufferOverride.overrideThisFrame())
+		{
+			framebuffer = framebufferOverride;
+		}
+		this.setActiveFramebufferId(framebuffer.getId());
+		framebuffer.bind();
+		
+		
+		
+		//==========//
+		// bindings //
+		//==========//
+		
+		// by default draw everything as triangles
+		GL32.glPolygonMode(GL32.GL_FRONT_AND_BACK, GL32.GL_FILL);
+		GLMC.enableFaceCulling();
+		
+		GLMC.glBlendFunc(GL32.GL_SRC_ALPHA, GL32.GL_ONE_MINUS_SRC_ALPHA);
+		GLMC.glBlendFuncSeparate(GL32.GL_SRC_ALPHA, GL32.GL_ONE_MINUS_SRC_ALPHA, GL32.GL_ONE, GL32.GL_ZERO);
+		
+		GL32.glDisable(GL32.GL_SCISSOR_TEST);
+		
+		// Enable depth test and depth mask
+		GLMC.enableDepthTest();
+		GLMC.glDepthFunc(GL32.GL_LESS);
+		GLMC.enableDepthMask();
+		
+		// This is required for MC versions 1.21.5+
+		// due to MC updating the lightmap by changing the viewport size
+		GL32.glViewport(0, 0, this.textureWidth, this.textureHeight);
+		
+		this.shaderProgramForThisFrame.bind();
+		
+		
+		
+		//==========//
+		// uniforms //
+		//==========//
+		
+		IDhApiShaderProgram shaderProgramOverride = OverrideInjector.INSTANCE.get(IDhApiShaderProgram.class);
+		if (shaderProgramOverride != null)
+		{
+			shaderProgramOverride.fillUniformData(renderEventParam);
+		}
+		
+		this.shaderProgramForThisFrame.fillUniformData(renderEventParam);
+		
+		
+		
+		//===============//
+		// texture setup //
+		//===============//
+		
+		// resize the textures if needed
+		if (MC_RENDER.getTargetFramebufferViewportWidth() != this.textureWidth
+			|| MC_RENDER.getTargetFramebufferViewportHeight() != this.textureHeight)
+		{
+			// just resizing the textures doesn't work when Optifine is present,
+			// so recreate the textures with the new size instead
+			this.createAndBindTextures();
+		}
+		
+		
+		// set the active textures
+		int depthTextureId = this.depthTexture.getTextureId();
+		this.setActiveDepthTextureId(depthTextureId);
+		
+		if (this.nullableColorTexture != null)
+		{
+			int colorTextureId = this.nullableColorTexture.getTextureId();
+			this.setActiveColorTextureId(colorTextureId);
+		}
+		else
+		{
+			// get MC's color texture 
+			int colorTextureId = GL32.glGetFramebufferAttachmentParameteri(GL32.GL_FRAMEBUFFER, GL32.GL_COLOR_ATTACHMENT0, GL32.GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME);
+			this.setActiveColorTextureId(colorTextureId);
+		}
+		
+		
+		// needs to be fired after all the textures have been created/bound
+		boolean clearTextures = !ApiEventInjector.INSTANCE.fireAllEvents(DhApiBeforeTextureClearEvent.class, renderEventParam);
+		if (clearTextures)
+		{
+			GL32.glClearDepth(1.0);
+			
+			float[] clearColorValues = new float[4];
+			GL32.glGetFloatv(GL32.GL_COLOR_CLEAR_VALUE, clearColorValues);
+			GL32.glClearColor(clearColorValues[0], clearColorValues[1], clearColorValues[2], 1.0f);
+			
+			if (this.usingMcFramebuffer && framebufferOverride == null)
+			{
+				// Due to using MC/Optifine's framebuffer we need to re-bind the depth texture,
+				// otherwise we'll be writing to MC/Optifine's depth texture which causes rendering issues
+				framebuffer.addDepthAttachment(this.depthTexture.getTextureId(), EGlDhDepthBufferFormat.DEPTH32F.isCombinedStencil());
+				
+				
+				// don't clear the color texture, that removes the sky 
+				GL32.glClear(GL32.GL_DEPTH_BUFFER_BIT);
+			}
+			else if (firstPass)
+			{
+				GL32.glClear(GL32.GL_COLOR_BUFFER_BIT | GL32.GL_DEPTH_BUFFER_BIT);
+			}
+		}
+	}
+	
+	private boolean createRenderObjects()
+	{
+		if (this.renderObjectsCreated)
+		{
+			LOGGER.warn("Renderer setup called but it has already completed setup!");
+			return false;
+		}
+		
+		// GLProxy should have already been created by this point, but just in case create it now
+		GLProxy.getInstance();
+		
+		
+		
+		LOGGER.info("Setting up renderer");
+		
+		GlDhTerrainShaderProgram.INSTANCE.quadIBO = new GlQuadElementBuffer();
+		GlDhTerrainShaderProgram.INSTANCE.quadIBO.reserve(LodQuadBuilder.getMaxBufferByteSize());
+		
+		
+		// create or get the frame buffer
+		if (AbstractOptifineAccessor.optifinePresent())
+		{
+			// use MC/Optifine's default Framebuffer so shaders won't remove the LODs
+			int currentFramebufferId = MC_RENDER.getTargetFramebuffer();
+			this.framebuffer = new GlDhFramebuffer(currentFramebufferId);
+			this.usingMcFramebuffer = true;
+		}
+		else
+		{
+			// normal use case
+			this.framebuffer = new GlDhFramebuffer();
+			this.usingMcFramebuffer = false;
+		}
+		
+		// create and bind the necessary textures
+		this.createAndBindTextures();
+		
+		if(this.framebuffer.getStatus() != GL32.GL_FRAMEBUFFER_COMPLETE)
+		{
+			// This generally means something wasn't bound, IE missing either the color or depth texture
+			LOGGER.warn("Framebuffer ["+this.framebuffer.getId()+"] isn't complete.");
+			return false;
+		}
+		
+		
+		
+		LOGGER.info("Renderer setup complete");
+		return true;
+	}
+	
+	@SuppressWarnings( "deprecation" ) // done to ignore DhApiColorDepthTextureCreatedEvent
+	private void createAndBindTextures()
+	{
+		int oldWidth = this.textureWidth;
+		int oldHeight = this.textureHeight;
+		this.textureWidth = MC_RENDER.getTargetFramebufferViewportWidth();
+		this.textureHeight = MC_RENDER.getTargetFramebufferViewportHeight();
+		
+		DhApiTextureCreatedParam textureCreatedParam = new DhApiTextureCreatedParam(
+			oldWidth, oldHeight,
+			this.textureWidth, this.textureHeight
+		);
+		
+		
+		// DhApiColorDepthTextureCreatedEvent needs to be kept around since old versions of Iris need it
+		ApiEventInjector.INSTANCE.fireAllEvents(DhApiColorDepthTextureCreatedEvent.class, new DhApiColorDepthTextureCreatedEvent.EventParam(textureCreatedParam));
+		ApiEventInjector.INSTANCE.fireAllEvents(DhApiBeforeColorDepthTextureCreatedEvent.class, textureCreatedParam);
+		
+		
+		// also update the framebuffer override if present
+		IDhApiFramebuffer framebufferOverride = OverrideInjector.INSTANCE.get(IDhApiFramebuffer.class);
+		
+		
+		this.depthTexture = new GlDhDepthTexture(this.textureWidth, this.textureHeight, EGlDhDepthBufferFormat.DEPTH32F);
+		this.framebuffer.addDepthAttachment(this.depthTexture.getTextureId(), EGlDhDepthBufferFormat.DEPTH32F.isCombinedStencil());
+		if (framebufferOverride != null)
+		{
+			framebufferOverride.addDepthAttachment(this.depthTexture.getTextureId(), EGlDhDepthBufferFormat.DEPTH32F.isCombinedStencil());
+		}
+		
+		
+		// if we are using MC's frame buffer, a color texture is already present and shouldn't need to be bound
+		if (!this.usingMcFramebuffer)
+		{
+			this.nullableColorTexture = GlDhColorTexture.builder()
+				.setDimensions(this.textureWidth, this.textureHeight)
+				.setInternalFormat(EGlDhInternalTextureFormat.RGBA8)
+				.setPixelType(EGlDhPixelType.UNSIGNED_BYTE)
+				.setPixelFormat(EGlDhPixelFormat.RGBA)
+				.build();
+			
+			this.framebuffer.addColorAttachment(0, this.nullableColorTexture.getTextureId());
+			if (framebufferOverride != null)
+			{
+				framebufferOverride.addColorAttachment(0, this.nullableColorTexture.getTextureId());
+			}
+		}
+		else
+		{
+			this.nullableColorTexture = null;
+		}
+		
+		
+		ApiEventInjector.INSTANCE.fireAllEvents(DhApiAfterColorDepthTextureCreatedEvent.class, textureCreatedParam);
+	}
+	
+	//endregion
+	
+	
+	
+	//=============//
+	// post render //
+	//=============//
+	//region
+	
+	@Override
+	public void runRenderPassCleanup(RenderParams renderParams)
+	{
+		boolean runningDeferredPass = (renderParams.renderPass == EDhApiRenderPass.TRANSPARENT);
+		if (!runningDeferredPass)
+		{
+			//===================//
+			// optifine clean up //
+			//===================//
+			
+			if (this.usingMcFramebuffer)
+			{
+				// If MC's framebuffer is being used the depth needs to be cleared to prevent rendering on top of MC.
+				// This should only happen when Optifine shaders are being used.
+				GL32.glClear(GL32.GL_DEPTH_BUFFER_BIT);
+			}
+		}
+		
+		
+		this.unbindLightmap();
+		GlDhTerrainShaderProgram.INSTANCE.quadIBO.unbind();
+		this.shaderProgramForThisFrame.unbind();
+	}
+	
+	@Override
+	public void applyToMcTexture(RenderParams renderParams) { GlDhApplyShader.INSTANCE.render(renderParams); }
+	
+	//endregion
+	
+	
+	
+	//================//
+	// clear textures //
+	//================//
+	//region
+	
+	@Override
+	public void clearDhDepthAndColorTextures(RenderParams renderParams) 
+	{
+		IDhApiFramebuffer framebufferOverride = OverrideInjector.INSTANCE.get(IDhApiFramebuffer.class);
+		
+		boolean firstPass =
+			(renderParams.renderPass == EDhApiRenderPass.OPAQUE
+			|| renderParams.renderPass == EDhApiRenderPass.OPAQUE_AND_TRANSPARENT);
+		
+		
+		
+		// needs to be fired after all the textures have been created/bound
+		boolean clearTextures = !ApiEventInjector.INSTANCE.fireAllEvents(DhApiBeforeTextureClearEvent.class, renderParams);
+		if (clearTextures)
+		{
+			GL32.glClearDepth(1.0);
+			
+			float[] clearColorValues = new float[4];
+			GL32.glGetFloatv(GL32.GL_COLOR_CLEAR_VALUE, clearColorValues);
+			GL32.glClearColor(clearColorValues[0], clearColorValues[1], clearColorValues[2], 1.0f);
+			
+			if (this.usingMcFramebuffer 
+				&& framebufferOverride == null)
+			{
+				//// Due to using MC/Optifine's framebuffer we need to re-bind the depth texture,
+				//// otherwise we'll be writing to MC/Optifine's depth texture which causes rendering issues
+				//this.framebuffer.addDepthAttachment(this.depthTexture.getTextureId(), EDhDepthBufferFormat.DEPTH32F.isCombinedStencil());
+				
+				
+				// don't clear the color texture, that removes the sky 
+				GL32.glClear(GL32.GL_DEPTH_BUFFER_BIT);
+			}
+			else if (firstPass)
+			{
+				GL32.glClear(GL32.GL_COLOR_BUFFER_BIT | GL32.GL_DEPTH_BUFFER_BIT);
+			}
+		}
+		
+	}
+	
+	//endregion
+	
+	
+	
+	//===============//
+	// API functions //
+	//===============//
+	//region
+	
+	public void setActiveFramebufferId(int id) { this.activeFramebufferId = id; }
+	/** @return -1 if no frame buffer has been bound yet */
+	public int getActiveFramebufferId() { return this.activeFramebufferId; }
+	
+	public void setActiveColorTextureId(int id)
+	{
+		this.activeColorTextureId = id;
+		DhApiRenderProxy.activeOpenGlDhColorTextureId = id;
+	}
+	/** @return -1 if no texture has been bound yet */
+	public int getActiveColorTextureId() { return this.activeColorTextureId; }
+	
+	public void setActiveDepthTextureId(int id)
+	{
+		this.activeDepthTextureId = id;
+		DhApiRenderProxy.activeOpenGlDhDepthTextureId = id;
+	}
+	/** @return -1 if no texture has been bound yet */
+	public int getActiveDepthTextureId() { return this.activeDepthTextureId; }
+	
+	//endregion
+	
+	
+	//================//
+	// helper methods //
+	//================//
+	//region
+	
+	public void bindLightmap(ILightMapWrapper lightMapWrapper)
+	{
+		LightMapWrapper lightMap = (LightMapWrapper)lightMapWrapper;
+		GLMC.glActiveTexture(GL32.GL_TEXTURE0 + LightMapWrapper.GL_BOUND_INDEX);
+		GLMC.glBindTexture(lightMap.getOpenGlId());
+	}
+	
+	public void unbindLightmap() 
+	{
+		// strange that we don't call "glActiveTexture" here but since it's working James isn't going to change it right now (2026-03-10) 
+		GLMC.glBindTexture(0); 
+	}
+	
+	//endregion
+	
+	
+}

common/src/main/java/com/seibel/distanthorizons/common/render/openGl/GlDhRenderApiDefinition.java

@@ -0,0 +1,66 @@
+package com.seibel.distanthorizons.common.render.openGl;
+
+import com.seibel.distanthorizons.common.render.openGl.generic.GlGenericObjectRenderer;
+import com.seibel.distanthorizons.common.render.openGl.generic.GlGenericObjectVertexContainer;
+import com.seibel.distanthorizons.common.render.openGl.glObject.GlDummyUniformData;
+import com.seibel.distanthorizons.common.render.openGl.glObject.buffer.GLVertexBuffer;
+import com.seibel.distanthorizons.common.render.openGl.postProcessing.fade.GlDhFarFadeRenderer;
+import com.seibel.distanthorizons.common.render.openGl.postProcessing.fade.GlVanillaFadeRenderer;
+import com.seibel.distanthorizons.common.render.openGl.postProcessing.fog.GlDhFogRenderer;
+import com.seibel.distanthorizons.common.render.openGl.postProcessing.ssao.GlDhSSAORenderer;
+import com.seibel.distanthorizons.common.render.openGl.test.GlTestTriangleRenderer;
+import com.seibel.distanthorizons.core.render.renderer.AbstractDebugWireframeRenderer;
+import com.seibel.distanthorizons.core.wrapperInterfaces.render.AbstractDhRenderApiDefinition;
+import com.seibel.distanthorizons.core.wrapperInterfaces.render.objects.IDhGenericObjectVertexBufferContainer;
+import com.seibel.distanthorizons.core.wrapperInterfaces.render.objects.ILodContainerUniformBufferWrapper;
+import com.seibel.distanthorizons.core.wrapperInterfaces.render.objects.IVertexBufferWrapper;
+import com.seibel.distanthorizons.core.wrapperInterfaces.render.renderPass.*;
+
+public class GlDhRenderApiDefinition extends AbstractDhRenderApiDefinition
+{
+	//=========//
+	// getters //
+	//=========//
+	//region
+	
+	public String getApiName() { return "OpenGL"; }
+	
+	//endregion
+	
+	
+	
+	//============//
+	// singletons //
+	//============//
+	//region
+	
+	@Override public IDhMetaRenderer getMetaRenderer() { return GlDhMetaRenderer.INSTANCE; }
+	@Override public IDhTerrainRenderer getTerrainRenderer() { return GlDhTerrainShaderProgram.INSTANCE; }
+	@Override public IDhSsaoRenderer getSsaoRenderer() { return GlDhSSAORenderer.INSTANCE; }
+	@Override public IDhFogRenderer getFogRenderer() { return GlDhFogRenderer.INSTANCE; }
+	@Override public IDhFarFadeRenderer getFarFadeRenderer() { return GlDhFarFadeRenderer.INSTANCE; }
+	@Override public AbstractDebugWireframeRenderer getDebugWireframeRenderer() { return GlDhDebugWireframeRenderer.INSTANCE; }
+	
+	@Override public IDhVanillaFadeRenderer getVanillaFadeRenderer() { return GlVanillaFadeRenderer.INSTANCE; }
+	@Override public IDhTestTriangleRenderer getTestTriangleRenderer() { return GlTestTriangleRenderer.INSTANCE; }
+	
+	//endregion
+	
+	
+	
+	//===========//
+	// factories //
+	//===========//
+	//region
+	
+	@Override public IDhGenericRenderer createGenericRenderer() { return GlGenericObjectRenderer.INSTANCE; }
+	
+	@Override public IVertexBufferWrapper createVboWrapper(String name) { return new GLVertexBuffer(); }
+	@Override public ILodContainerUniformBufferWrapper createLodContainerUniformWrapper() { return new GlDummyUniformData(); }
+	@Override public IDhGenericObjectVertexBufferContainer createGenericVboContainer() { return new GlGenericObjectVertexContainer(); }
+	
+	//endregion
+	
+	
+	
+}

common/src/main/java/com/seibel/distanthorizons/common/render/openGl/GlDhTerrainShaderProgram.java

@@ -0,0 +1,387 @@
+/*
+ *    This file is part of the Distant Horizons mod
+ *    licensed under the GNU LGPL 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 Lesser 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 Lesser General Public License for more details.
+ *
+ *    You should have received a copy of the GNU Lesser General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.seibel.distanthorizons.common.render.openGl;
+
+import com.seibel.distanthorizons.api.interfaces.override.rendering.IDhApiShaderProgram;
+import com.seibel.distanthorizons.api.methods.events.abstractEvents.*;
+import com.seibel.distanthorizons.api.methods.events.sharedParameterObjects.DhApiRenderParam;
+import com.seibel.distanthorizons.api.objects.math.DhApiVec3f;
+import com.seibel.distanthorizons.common.render.openGl.glObject.GLProxy;
+import com.seibel.distanthorizons.common.render.openGl.glObject.buffer.GLVertexBuffer;
+import com.seibel.distanthorizons.common.render.openGl.glObject.buffer.GlQuadElementBuffer;
+import com.seibel.distanthorizons.common.render.openGl.glObject.shader.GlShaderProgram;
+import com.seibel.distanthorizons.common.render.openGl.glObject.vertexAttribute.GlAbstractVertexAttribute;
+import com.seibel.distanthorizons.common.render.openGl.glObject.vertexAttribute.GlVertexAttributePostGL43;
+import com.seibel.distanthorizons.common.render.openGl.glObject.vertexAttribute.GlVertexAttributePreGL43;
+import com.seibel.distanthorizons.common.render.openGl.glObject.vertexAttribute.GlVertexPointer;
+import com.seibel.distanthorizons.common.render.openGl.util.vertexFormat.GlLodVertexFormat;
+import com.seibel.distanthorizons.common.wrappers.minecraft.MinecraftGLWrapper;
+import com.seibel.distanthorizons.common.wrappers.misc.LightMapWrapper;
+import com.seibel.distanthorizons.core.config.Config;
+import com.seibel.distanthorizons.core.dataObjects.render.bufferBuilding.LodBufferContainer;
+import com.seibel.distanthorizons.core.dataObjects.render.bufferBuilding.LodQuadBuilder;
+import com.seibel.distanthorizons.core.dependencyInjection.ModAccessorInjector;
+import com.seibel.distanthorizons.core.logging.DhLogger;
+import com.seibel.distanthorizons.core.logging.DhLoggerBuilder;
+import com.seibel.distanthorizons.core.render.RenderParams;
+import com.seibel.distanthorizons.core.util.RenderUtil;
+import com.seibel.distanthorizons.core.util.math.Mat4f;
+import com.seibel.distanthorizons.core.util.math.Vec3d;
+import com.seibel.distanthorizons.core.util.math.Vec3f;
+import com.seibel.distanthorizons.core.util.objects.SortedArraySet;
+import com.seibel.distanthorizons.core.wrapperInterfaces.minecraft.IProfilerWrapper;
+import com.seibel.distanthorizons.core.wrapperInterfaces.modAccessor.IIrisAccessor;
+import com.seibel.distanthorizons.core.wrapperInterfaces.render.objects.IVertexBufferWrapper;
+import com.seibel.distanthorizons.core.wrapperInterfaces.render.renderPass.IDhTerrainRenderer;
+import com.seibel.distanthorizons.coreapi.DependencyInjection.ApiEventInjector;
+import org.lwjgl.opengl.GL32;
+
+/**
+ * Handles rendering the normal LOD terrain.
+ * @see LodQuadBuilder 
+ */
+public class GlDhTerrainShaderProgram extends GlShaderProgram implements IDhApiShaderProgram, IDhTerrainRenderer
+{
+	public static final DhLogger LOGGER = new DhLoggerBuilder()
+		.fileLevelConfig(Config.Common.Logging.logRendererEventToFile)
+		.build();
+	
+	public static final GlDhTerrainShaderProgram INSTANCE = new GlDhTerrainShaderProgram();
+	
+	private static final MinecraftGLWrapper GLMC = MinecraftGLWrapper.INSTANCE;
+	private static final IIrisAccessor IRIS_ACCESSOR = ModAccessorInjector.INSTANCE.get(IIrisAccessor.class);
+	
+	
+	
+	public GlQuadElementBuffer quadIBO = null;
+	public final GlAbstractVertexAttribute vao;
+	
+	// uniforms //
+	//region 
+	
+	public int uCombinedMatrix = -1;
+	public int uModelOffset = -1;
+	public int uWorldYOffset = -1;
+	
+	public int uMircoOffset = -1;
+	public int uEarthRadius = -1;
+	public int uLightMap = -1;
+	
+	// fragment shader uniforms
+	public int uClipDistance = -1;
+	public int uDitherDhRendering = -1;
+	
+	// Noise Uniforms
+	public int uNoiseEnabled = -1;
+	public int uNoiseSteps = -1;
+	public int uNoiseIntensity = -1;
+	public int uNoiseDropoff = -1;
+	
+	// Debug Uniform
+	public int uIsWhiteWorld = -1;
+	
+	//endregion
+	
+	
+	
+	//=============//
+	// constructor //
+	//=============//
+	//region
+	
+	private GlDhTerrainShaderProgram()
+	{
+		super(
+			"assets/distanthorizons/shaders/shared/gl/standard.vert",
+			"assets/distanthorizons/shaders/shared/gl/flat_shaded.frag",
+			new String[]{"vPosition", "color"}
+		);
+		
+		this.uCombinedMatrix = this.getUniformLocation("uCombinedMatrix");
+		this.uModelOffset = this.getUniformLocation("uModelOffset");
+		this.uWorldYOffset = this.getUniformLocation("uWorldYOffset");
+		this.uDitherDhRendering = this.getUniformLocation("uDitherDhRendering");
+		this.uMircoOffset = this.getUniformLocation("uMircoOffset");
+		this.uEarthRadius = this.getUniformLocation("uEarthRadius");
+		
+		this.uLightMap = this.getUniformLocation("uLightMap");
+		
+		// Fog/Clip Uniforms
+		this.uClipDistance = this.getUniformLocation("uClipDistance");
+		
+		// Noise Uniforms
+		this.uNoiseEnabled = this.getUniformLocation("uNoiseEnabled");
+		this.uNoiseSteps = this.getUniformLocation("uNoiseSteps");
+		this.uNoiseIntensity = this.getUniformLocation("uNoiseIntensity");
+		this.uNoiseDropoff = this.getUniformLocation("uNoiseDropoff");
+		
+		// Debug Uniform
+		this.uIsWhiteWorld = this.getUniformLocation("uIsWhiteWorld");
+		
+		
+		if (GLProxy.getInstance().vertexAttributeBufferBindingSupported)
+		{
+			this.vao = new GlVertexAttributePostGL43(); // also binds AbstractVertexAttribute
+		}
+		else
+		{
+			this.vao = new GlVertexAttributePreGL43(); // also binds AbstractVertexAttribute
+		}
+		this.vao.bind();
+		
+		// short: x, y, z, meta
+		//      meta: byte skylight, byte blocklight, byte microOffset
+		this.vao.setVertexAttribute(0, 0, GlVertexPointer.addUnsignedShortsPointer(4, false, true));
+		// byte: r, g, b, a
+		this.vao.setVertexAttribute(0, 1, GlVertexPointer.addUnsignedBytesPointer(4, true, false));
+		// byte: iris material ID, normal index, 2 spacers
+		this.vao.setVertexAttribute(0, 2, GlVertexPointer.addUnsignedBytesPointer(4, true, true));
+		
+		try
+		{
+			int vertexByteCount = GlLodVertexFormat.DH_VERTEX_FORMAT.getByteSize();
+			this.vao.completeAndCheck(vertexByteCount);
+		}
+		catch (RuntimeException e)
+		{
+			System.out.println(GlLodVertexFormat.DH_VERTEX_FORMAT);
+			throw e;
+		}
+		
+	}
+	
+	//endregion
+	
+	
+	
+	//=============//
+	// API methods //
+	//=============//
+	//region
+	
+	@Override
+	public void bind()
+	{
+		super.bind();
+		this.vao.bind();
+	}
+	@Override
+	public void unbind()
+	{
+		super.unbind();
+		this.vao.unbind();
+	}
+	
+	@Override
+	public void free()
+	{
+		this.vao.free();
+		super.free();
+	}
+	
+	@Override
+	public void bindVertexBuffer(int vbo) { this.vao.bindBufferToAllBindingPoints(vbo); }
+	
+	@Override
+	public void fillUniformData(DhApiRenderParam renderParameters)
+	{
+		Mat4f combinedMatrix = new Mat4f(renderParameters.dhProjectionMatrix);
+		combinedMatrix.multiply(renderParameters.dhModelViewMatrix);
+		
+		super.bind();
+
+		// uniforms
+		this.setUniform(this.uCombinedMatrix, combinedMatrix);
+		this.setUniform(this.uMircoOffset, 0.01f); // 0.01 block offset
+		
+		this.setUniform(this.uLightMap, LightMapWrapper.GL_BOUND_INDEX);
+		
+		this.setUniform(this.uWorldYOffset, (float) renderParameters.worldYOffset);
+		
+		this.setUniform(this.uDitherDhRendering, Config.Client.Advanced.Graphics.Quality.ditherDhFade.get());
+		
+		float curveRatio = Config.Client.Advanced.Graphics.Experimental.earthCurveRatio.get();
+		if (curveRatio < -1.0f || curveRatio > 1.0f)
+		{
+			curveRatio = /*6371KM*/ 6371000.0f / curveRatio;
+		}
+		else
+		{
+			// disable curvature if the config value is between -1 and 1
+			curveRatio = 0.0f;
+		}
+		this.setUniform(this.uEarthRadius, curveRatio);
+		
+		// Noise Uniforms
+		this.setUniform(this.uNoiseEnabled, Config.Client.Advanced.Graphics.NoiseTexture.enableNoiseTexture.get());
+		this.setUniform(this.uNoiseSteps, Config.Client.Advanced.Graphics.NoiseTexture.noiseSteps.get());
+		this.setUniform(this.uNoiseIntensity, Config.Client.Advanced.Graphics.NoiseTexture.noiseIntensity.get());
+		this.setUniform(this.uNoiseDropoff, Config.Client.Advanced.Graphics.NoiseTexture.noiseDropoff.get());
+		
+		// Debug
+		this.setUniform(this.uIsWhiteWorld, Config.Client.Advanced.Debugging.enableWhiteWorld.get());
+		
+		// Clip Uniform
+		float dhNearClipDistance = RenderUtil.getNearClipPlaneInBlocks();
+		if (!Config.Client.Advanced.Debugging.lodOnlyMode.get())
+		{
+			// this added value prevents the near clip plane and discard circle from touching, which looks bad
+			dhNearClipDistance += 16f;
+		}
+		this.setUniform(this.uClipDistance, dhNearClipDistance);
+	}
+	
+	@Override
+	public void setModelOffsetPos(DhApiVec3f modelOffsetPos) { this.setUniform(this.uModelOffset, new Vec3f(modelOffsetPos)); }
+	
+	@Override
+	public int getId() { return this.id; }
+	
+	/** The base DH render program should always render */
+	@Override
+	public boolean overrideThisFrame() { return true; }
+	
+	//endregion
+	
+	
+	
+	//===========//
+	// rendering //
+	//===========//
+	//region
+	
+	@Override
+	public void render(RenderParams renderEventParam, boolean opaquePass, SortedArraySet<LodBufferContainer> bufferContainers, IProfilerWrapper profiler)
+	{
+		//=======================//
+		// debug wireframe setup //
+		//=======================//
+		
+		boolean renderWireframe = Config.Client.Advanced.Debugging.renderWireframe.get();
+		if (renderWireframe)
+		{
+			GL32.glPolygonMode(GL32.GL_FRONT_AND_BACK, GL32.GL_LINE);
+			GLMC.disableFaceCulling();
+		}
+		else
+		{
+			GL32.glPolygonMode(GL32.GL_FRONT_AND_BACK, GL32.GL_FILL);
+			GLMC.enableFaceCulling();
+		}
+		
+		if (!opaquePass)
+		{
+			GLMC.enableBlend();
+			GLMC.enableDepthTest();
+			GL32.glBlendEquation(GL32.GL_FUNC_ADD);
+			GLMC.glBlendFuncSeparate(GL32.GL_SRC_ALPHA, GL32.GL_ONE_MINUS_SRC_ALPHA, GL32.GL_ONE, GL32.GL_ONE_MINUS_SRC_ALPHA);
+		}
+		else
+		{
+			GLMC.disableBlend();
+		}
+		
+		
+		
+		
+		//===========//
+		// rendering //
+		//===========//
+		
+		ApiEventInjector.INSTANCE.fireAllEvents(DhApiBeforeRenderPassEvent.class, renderEventParam);
+		
+		if (IRIS_ACCESSOR != null)
+		{
+			// done to fix a bug with Iris where face culling isn't properly set or reverted in the MC state manager
+			// which causes Sodium to render some water chunks with their normals inverted
+			// https://github.com/IrisShaders/Iris/issues/2582
+			// https://github.com/IrisShaders/Iris/blob/1.21.9/common/src/main/java/net/irisshaders/iris/compat/dh/LodRendererEvents.java#L346
+			GLMC.enableFaceCulling();
+		}
+		
+		
+		if (bufferContainers != null)
+		{
+			for (int lodIndex = 0; lodIndex < bufferContainers.size(); lodIndex++)
+			{
+				LodBufferContainer bufferContainer = bufferContainers.get(lodIndex);
+				
+				// set uniforms and fire events
+				{
+					Vec3d camPos = renderEventParam.exactCameraPosition;
+					Vec3f modelPos = new Vec3f(
+						(float) (bufferContainer.minCornerBlockPos.getX() - camPos.x),
+						(float) (bufferContainer.minCornerBlockPos.getY() - camPos.y),
+						(float) (bufferContainer.minCornerBlockPos.getZ() - camPos.z));
+					
+					GlDhMetaRenderer.INSTANCE.shaderProgramForThisFrame.bind();
+					GlDhMetaRenderer.INSTANCE.shaderProgramForThisFrame.setModelOffsetPos(modelPos);
+					
+					ApiEventInjector.INSTANCE.fireAllEvents(DhApiBeforeBufferRenderEvent.class, new DhApiBeforeBufferRenderEvent.EventParam(renderEventParam, modelPos));
+				}
+				
+				IVertexBufferWrapper[] vertexBuffers = (opaquePass ? bufferContainer.vbos : bufferContainer.vbosTransparent);
+				for (int vboIndex = 0; vboIndex < vertexBuffers.length; vboIndex++)
+				{
+					GLVertexBuffer vbo = (GLVertexBuffer) vertexBuffers[vboIndex];
+					if (vbo == null)
+					{
+						continue;
+					}
+					
+					if (vbo.getVertexCount() == 0)
+					{
+						continue;
+					}
+					
+					// 4 vertices per face, but 6 indices (IE 2 triangles) per face, aka need to multiply by 1.5
+					int indexCount = (int)(vbo.getVertexCount() * 1.5);
+					
+					vbo.bind();
+					GlDhMetaRenderer.INSTANCE.shaderProgramForThisFrame.bindVertexBuffer(vbo.getId());
+					GL32.glDrawElements(
+						GL32.GL_TRIANGLES,
+						indexCount,
+						this.quadIBO.getType(), 0);
+					vbo.unbind();
+				}
+			}
+		}
+		
+		
+		
+		//=========================//
+		// debug wireframe cleanup //
+		//=========================//
+		
+		if (renderWireframe)
+		{
+			// default back to GL_FILL since all other rendering uses it 
+			GL32.glPolygonMode(GL32.GL_FRONT_AND_BACK, GL32.GL_FILL);
+			GLMC.enableFaceCulling();
+		}
+		
+	}
+	
+	//endregion
+	
+	
+	
+}

common/src/main/java/com/seibel/distanthorizons/common/render/openGl/generic/GlGenericObjectRenderer.java

@@ -0,0 +1,738 @@
+/*
+ *    This file is part of the Distant Horizons mod
+ *    licensed under the GNU LGPL 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 Lesser 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 Lesser General Public License for more details.
+ *
+ *    You should have received a copy of the GNU Lesser General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.seibel.distanthorizons.common.render.openGl.generic;
+
+import com.seibel.distanthorizons.api.enums.config.EDhApiGpuUploadMethod;
+import com.seibel.distanthorizons.api.enums.rendering.EDhApiBlockMaterial;
+import com.seibel.distanthorizons.api.interfaces.override.rendering.IDhApiGenericObjectShaderProgram;
+import com.seibel.distanthorizons.api.interfaces.render.IDhApiRenderableBoxGroup;
+import com.seibel.distanthorizons.api.interfaces.render.IDhApiCustomRenderRegister;
+import com.seibel.distanthorizons.api.methods.events.abstractEvents.*;
+import com.seibel.distanthorizons.api.methods.events.sharedParameterObjects.DhApiRenderParam;
+import com.seibel.distanthorizons.api.objects.math.DhApiVec3d;
+import com.seibel.distanthorizons.api.objects.render.DhApiRenderableBox;
+import com.seibel.distanthorizons.api.objects.render.DhApiRenderableBoxGroupShading;
+import com.seibel.distanthorizons.common.render.openGl.glObject.GLProxy;
+import com.seibel.distanthorizons.common.render.openGl.glObject.buffer.GLElementBuffer;
+import com.seibel.distanthorizons.common.render.openGl.glObject.buffer.GLVertexBuffer;
+import com.seibel.distanthorizons.common.wrappers.minecraft.MinecraftGLWrapper;
+import com.seibel.distanthorizons.core.config.Config;
+import com.seibel.distanthorizons.core.dependencyInjection.SingletonInjector;
+import com.seibel.distanthorizons.core.jar.EPlatform;
+import com.seibel.distanthorizons.core.logging.DhLogger;
+import com.seibel.distanthorizons.core.logging.DhLoggerBuilder;
+import com.seibel.distanthorizons.core.logging.f3.F3Screen;
+import com.seibel.distanthorizons.core.render.RenderParams;
+import com.seibel.distanthorizons.core.render.renderer.GenericRenderObjectFactory;
+import com.seibel.distanthorizons.core.render.renderer.RenderableBoxGroup;
+import com.seibel.distanthorizons.core.util.LodUtil;
+import com.seibel.distanthorizons.core.wrapperInterfaces.minecraft.IMinecraftRenderWrapper;
+import com.seibel.distanthorizons.core.wrapperInterfaces.minecraft.IProfilerWrapper;
+import com.seibel.distanthorizons.core.util.math.Vec3d;
+import com.seibel.distanthorizons.core.wrapperInterfaces.render.renderPass.IDhGenericRenderer;
+import com.seibel.distanthorizons.coreapi.DependencyInjection.ApiEventInjector;
+import com.seibel.distanthorizons.coreapi.DependencyInjection.OverrideInjector;
+import com.seibel.distanthorizons.coreapi.ModInfo;
+import org.lwjgl.opengl.ARBInstancedArrays;
+import org.lwjgl.opengl.GL32;
+import org.lwjgl.opengl.GL33;
+import org.lwjgl.system.MemoryUtil;
+
+import java.awt.*;
+import java.nio.ByteBuffer;
+import java.util.*;
+import java.util.concurrent.ConcurrentHashMap;
+
+/**
+ * Handles rendering generic groups of {@link DhApiRenderableBox}.
+ * 
+ * @see IDhApiCustomRenderRegister
+ * @see DhApiRenderableBox
+ */
+public class GlGenericObjectRenderer implements IDhGenericRenderer
+{
+	private static final DhLogger LOGGER = new DhLoggerBuilder().build();
+	
+	private static final IMinecraftRenderWrapper MC_RENDER = SingletonInjector.INSTANCE.get(IMinecraftRenderWrapper.class);
+	private static final MinecraftGLWrapper GLMC = MinecraftGLWrapper.INSTANCE;
+	
+	private static final DhApiRenderableBoxGroupShading DEFAULT_SHADING = DhApiRenderableBoxGroupShading.getUnshaded();
+	
+	
+	public static final GlGenericObjectRenderer INSTANCE = new GlGenericObjectRenderer();
+	
+	/** 
+	 * Can be used to troubleshoot the renderer. 
+	 * If enabled several debug objects will render around (0,150,0). 
+	 */
+	public static final boolean RENDER_DEBUG_OBJECTS = false;
+	
+	
+	// rendering setup
+	private boolean init = false;
+	
+	private IDhApiGenericObjectShaderProgram instancedShaderProgram;
+	private IDhApiGenericObjectShaderProgram directShaderProgram;
+	private GLVertexBuffer boxVertexBuffer;
+	private GLElementBuffer boxIndexBuffer;
+	
+	private boolean instancedRenderingAvailable;
+	private boolean vertexAttribDivisorSupported;
+	private boolean instancedArraysSupported;
+	
+	
+	
+	private final ConcurrentHashMap<Long, RenderableBoxGroup> boxGroupById = new ConcurrentHashMap<>();
+	
+	
+	
+	/** A box from 0,0,0 to 1,1,1 */
+	private static final float[] BOX_VERTICES = {
+	//region
+			// Pos x y z
+			
+			// min X, vertical face
+			0, 0, 0,
+			1, 0, 0,
+			1, 1, 0,
+			0, 1, 0,
+			// max X, vertical face
+			0, 1, 1,
+			1, 1, 1,
+			1, 0, 1,
+			0, 0, 1,
+			
+			// min Z, vertical face
+			0, 0, 1,
+			0, 0, 0,
+			0, 1, 0,
+			0, 1, 1,
+			// max Z, vertical face
+			1, 0, 1,
+			1, 1, 1,
+			1, 1, 0,
+			1, 0, 0,
+			
+			// min Y, horizontal face
+			0, 0, 1,
+			1, 0, 1,
+			1, 0, 0,
+			0, 0, 0,
+			// max Y, horizontal face
+			0, 1, 1,
+			1, 1, 1,
+			1, 1, 0,
+			0, 1, 0,
+	//endregion
+	};
+	
+	
+	private static final int[] BOX_INDICES = {
+	//region
+			// min X, vertical face
+			2, 1, 0,    
+			0, 3, 2,
+			// max X, vertical face
+			6, 5, 4,
+			4, 7, 6,
+			
+			// min Z, vertical face
+			10, 9, 8,
+			8, 11, 10,
+			// max Z, vertical face
+			14, 13, 12,
+			12, 15, 14,
+			
+			// min Y, horizontal face
+			18, 17, 16,
+			16, 19, 18,
+			// max Y, horizontal face
+			20, 21, 22, 
+			22, 23, 20,
+	//endregion
+	};
+	
+	
+	
+	//=============//
+	// constructor //
+	//=============//
+	//region
+	
+	private GlGenericObjectRenderer() { }
+	
+	public void init()
+	{
+		if (this.init)
+		{
+			return;
+		}
+		this.init = true;
+		
+		
+		
+		//===================================//
+		// is instanced rendering available? //
+		//===================================//
+		
+		this.vertexAttribDivisorSupported = GLProxy.getInstance().vertexAttribDivisorSupported;
+		this.instancedArraysSupported = GLProxy.getInstance().instancedArraysSupported;
+		boolean isMac = (EPlatform.get() == EPlatform.MACOS);
+		this.instancedRenderingAvailable = (this.vertexAttribDivisorSupported || this.instancedArraysSupported) && !isMac;
+		if (!this.instancedRenderingAvailable)
+		{
+			LOGGER.warn("Instanced rendering not supported by this GPU, falling back to direct rendering. Generic object rendering will be slow and some effects may be disabled.");
+		}
+		
+		
+		
+		//======================//
+		// startup the renderer //
+		//======================//
+		
+		this.instancedShaderProgram = new GlGenericObjectShaderProgram(true);
+		this.directShaderProgram = new GlGenericObjectShaderProgram(false);
+		
+		this.createBuffers();
+		
+		if (RENDER_DEBUG_OBJECTS)
+		{
+			this.addGenericDebugObjects();
+		}
+	}
+	private void createBuffers()
+	{
+		// box vertices 
+		ByteBuffer boxVerticesBuffer = MemoryUtil.memAlloc(BOX_VERTICES.length * Float.BYTES);
+		boxVerticesBuffer.asFloatBuffer().put(BOX_VERTICES);
+		boxVerticesBuffer.rewind();
+		this.boxVertexBuffer = new GLVertexBuffer(false);
+		this.boxVertexBuffer.bind();
+		this.boxVertexBuffer.uploadBuffer(boxVerticesBuffer, 8, EDhApiGpuUploadMethod.DATA, BOX_VERTICES.length * Float.BYTES);
+		MemoryUtil.memFree(boxVerticesBuffer);
+		
+		// box vertex indexes
+		ByteBuffer solidIndexBuffer = MemoryUtil.memAlloc(BOX_INDICES.length * Integer.BYTES);
+		solidIndexBuffer.asIntBuffer().put(BOX_INDICES);
+		solidIndexBuffer.rewind();
+		this.boxIndexBuffer = new GLElementBuffer(false);
+		this.boxIndexBuffer.uploadBuffer(solidIndexBuffer, EDhApiGpuUploadMethod.DATA, BOX_INDICES.length * Integer.BYTES, GL32.GL_STATIC_DRAW);
+		this.boxIndexBuffer.bind();
+		MemoryUtil.memFree(solidIndexBuffer);
+	}
+	private void addGenericDebugObjects()
+	{
+		GenericRenderObjectFactory factory = GenericRenderObjectFactory.INSTANCE;
+		
+		
+		// single giant box
+		IDhApiRenderableBoxGroup singleGiantBoxGroup = factory.createForSingleBox(
+				ModInfo.NAME + ":CyanChunkBox",
+				new DhApiRenderableBox(
+						new DhApiVec3d(0,0,0), new DhApiVec3d(16,190,16),
+						new Color(Color.CYAN.getRed(), Color.CYAN.getGreen(), Color.CYAN.getBlue(), 125),
+						EDhApiBlockMaterial.WATER)
+		);
+		singleGiantBoxGroup.setSkyLight(LodUtil.MAX_MC_LIGHT);
+		singleGiantBoxGroup.setBlockLight(LodUtil.MAX_MC_LIGHT);
+		this.add(singleGiantBoxGroup);
+
+
+		// single slender box
+		IDhApiRenderableBoxGroup singleTallBoxGroup = factory.createForSingleBox(
+				ModInfo.NAME + ":GreenBeacon",
+				new DhApiRenderableBox(
+						new DhApiVec3d(16,0,31), new DhApiVec3d(17,2000,32),
+						new Color(Color.GREEN.getRed(), Color.GREEN.getGreen(), Color.GREEN.getBlue(), 125),
+						EDhApiBlockMaterial.ILLUMINATED)
+		);
+		singleTallBoxGroup.setSkyLight(LodUtil.MAX_MC_LIGHT);
+		singleTallBoxGroup.setBlockLight(LodUtil.MAX_MC_LIGHT);
+		this.add(singleTallBoxGroup);
+
+
+		// absolute box group
+		ArrayList<DhApiRenderableBox> absBoxList = new ArrayList<>();
+		for (int i = 0; i < 18; i++)
+		{
+			absBoxList.add(new DhApiRenderableBox(
+					new DhApiVec3d(i,150+i,24), new DhApiVec3d(1+i,151+i,25),
+					new Color(Color.ORANGE.getRed(), Color.ORANGE.getGreen(), Color.ORANGE.getBlue()),
+					EDhApiBlockMaterial.LAVA
+				)
+			);
+		}
+		IDhApiRenderableBoxGroup absolutePosBoxGroup = factory.createAbsolutePositionedGroup(ModInfo.NAME + ":OrangeStairs", absBoxList);
+		this.add(absolutePosBoxGroup);
+
+
+		// relative box group
+		ArrayList<DhApiRenderableBox> relBoxList = new ArrayList<>();
+		for (int i = 0; i < 8; i+=2)
+		{
+			relBoxList.add(new DhApiRenderableBox(
+					new DhApiVec3d(0,i,0), new DhApiVec3d(1,1+i,1),
+					new Color(Color.MAGENTA.getRed(), Color.MAGENTA.getGreen(), Color.MAGENTA.getBlue()),
+					EDhApiBlockMaterial.METAL
+				)
+			);
+		}
+		IDhApiRenderableBoxGroup relativePosBoxGroup = factory.createRelativePositionedGroup(
+				ModInfo.NAME + ":MovingMagentaGroup",
+				new DhApiVec3d(24, 140, 24),
+				relBoxList);
+		relativePosBoxGroup.setPreRenderFunc((event) ->
+		{
+			DhApiVec3d pos = relativePosBoxGroup.getOriginBlockPos();
+			pos.x += event.partialTicks / 2;
+			pos.x %= 32;
+			relativePosBoxGroup.setOriginBlockPos(pos);
+		});
+		this.add(relativePosBoxGroup);
+
+
+		// massive relative box group
+		ArrayList<DhApiRenderableBox> massRelBoxList = new ArrayList<>();
+		for (int x = 0; x < 50*2; x+=2)
+		{
+			for (int z = 0; z < 50*2; z+=2)
+			{
+				massRelBoxList.add(new DhApiRenderableBox(
+						new DhApiVec3d(-x, 0, -z), new DhApiVec3d(1-x, 1, 1-z),
+						new Color(Color.RED.getRed(), Color.RED.getGreen(), Color.RED.getBlue()),
+						EDhApiBlockMaterial.TERRACOTTA
+					)
+				);
+			}
+		}
+		IDhApiRenderableBoxGroup massRelativePosBoxGroup = factory.createRelativePositionedGroup(
+				ModInfo.NAME + ":MassRedGroup",
+				new DhApiVec3d(-25, 140, 0),
+				massRelBoxList);
+		massRelativePosBoxGroup.setPreRenderFunc((event) ->
+		{
+			DhApiVec3d blockPos = massRelativePosBoxGroup.getOriginBlockPos();
+			blockPos.y += event.partialTicks / 4;
+			if (blockPos.y > 150f)
+			{
+				blockPos.y = 140f;
+
+				Color newColor = (massRelativePosBoxGroup.get(0).color == Color.RED) ? Color.RED.darker() : Color.RED;
+				massRelativePosBoxGroup.forEach((box) -> { box.color = newColor; });
+				massRelativePosBoxGroup.triggerBoxChange();
+			}
+
+			massRelativePosBoxGroup.setOriginBlockPos(blockPos);
+		});
+		this.add(massRelativePosBoxGroup);
+	}
+	
+	//endregion
+	
+	
+	
+	//==============//
+	// registration //
+	//==============//
+	//region
+	
+	@Override
+	public void add(IDhApiRenderableBoxGroup iBoxGroup) throws IllegalArgumentException 
+	{
+		if (!(iBoxGroup instanceof RenderableBoxGroup))
+		{
+			throw new IllegalArgumentException("Box group must be of type ["+ RenderableBoxGroup.class.getSimpleName()+"], type received: ["+(iBoxGroup != null ? iBoxGroup.getClass() : "NULL")+"].");
+		}
+		RenderableBoxGroup boxGroup = (RenderableBoxGroup) iBoxGroup;
+		
+		
+		long id = boxGroup.getId();
+		if (this.boxGroupById.containsKey(id))
+		{
+			throw new IllegalArgumentException("A box group with the ID [" + id + "] is already present.");
+		}
+		
+		this.boxGroupById.put(id, boxGroup);
+	}
+	
+	@Override
+	public IDhApiRenderableBoxGroup remove(long id) { return this.boxGroupById.remove(id); }
+	
+	public void clear() { this.boxGroupById.clear(); }
+	
+	//endregion
+	
+	
+	
+	//===========//
+	// rendering //
+	//===========//
+	//region
+	
+	/**
+	 * @param renderingWithSsao 
+	 *      if true that means this render call is happening before the SSAO pass
+     *      and any objects rendered in this pass will have SSAO applied to them.
+	 */
+	@Override
+	public void render(RenderParams renderEventParam, IProfilerWrapper profiler, boolean renderingWithSsao)
+	{
+		// render setup //
+		profiler.push("setup");
+		
+		this.init();
+		
+		boolean useInstancedRendering = this.instancedRenderingAvailable
+				&& Config.Client.Advanced.Graphics.GenericRendering.enableInstancedRendering.get();
+		
+		ApiEventInjector.INSTANCE.fireAllEvents(DhApiBeforeGenericRenderSetupEvent.class, renderEventParam);
+		
+		
+		boolean renderWireframe = Config.Client.Advanced.Debugging.renderWireframe.get();
+		if (renderWireframe)
+		{
+			GL32.glPolygonMode(GL32.GL_FRONT_AND_BACK, GL32.GL_LINE);
+			GLMC.disableFaceCulling();
+		}
+		else
+		{
+			GL32.glPolygonMode(GL32.GL_FRONT_AND_BACK, GL32.GL_FILL);
+			GLMC.enableFaceCulling();
+		}
+		
+		GLMC.enableBlend();
+		GL32.glBlendEquation(GL32.GL_FUNC_ADD);
+		GLMC.glBlendFuncSeparate(GL32.GL_SRC_ALPHA, GL32.GL_ONE_MINUS_SRC_ALPHA, GL32.GL_ONE, GL32.GL_ONE_MINUS_SRC_ALPHA);
+		
+		IDhApiGenericObjectShaderProgram shaderProgram = useInstancedRendering ? this.instancedShaderProgram : this.directShaderProgram;
+		IDhApiGenericObjectShaderProgram shaderProgramOverride = OverrideInjector.INSTANCE.get(IDhApiGenericObjectShaderProgram.class);
+		if (shaderProgramOverride != null && shaderProgram.overrideThisFrame())
+		{
+			shaderProgram = shaderProgramOverride;
+		}
+		
+		shaderProgram.bind(renderEventParam);
+		shaderProgram.bindVertexBuffer(this.boxVertexBuffer.getId());
+		
+		this.boxIndexBuffer.bind();
+		
+		Vec3d camPos = MC_RENDER.getCameraExactPosition();
+		
+		
+		
+		// rendering //
+		
+		Collection<RenderableBoxGroup> boxList = this.boxGroupById.values();
+		for (RenderableBoxGroup boxGroup : boxList)
+		{
+			// validation //
+			
+			// shouldn't happen, but just in case
+			if (boxGroup == null)
+			{
+				continue;
+			}
+			
+			// skip boxes that shouldn't render this pass
+			if (boxGroup.ssaoEnabled != renderingWithSsao)
+			{
+				continue;
+			}
+			
+			profiler.popPush("render prep");
+			boxGroup.preRender(renderEventParam); // called even if the group is inactive, so the group can be activate if desired
+
+			// ignore inactive groups
+			if (!boxGroup.active)
+			{
+				continue;
+			}
+			
+			// allow API users to cancel this object's rendering
+			boolean cancelRendering = ApiEventInjector.INSTANCE.fireAllEvents(DhApiBeforeGenericObjectRenderEvent.class, new DhApiBeforeGenericObjectRenderEvent.EventParam(renderEventParam, boxGroup));
+			if (cancelRendering)
+			{
+				continue;
+			}
+			
+			// update instanced data if needed
+			if (useInstancedRendering)
+			{
+				boxGroup.tryUpdateInstancedDataAsync();	
+				
+				// skip groups that haven't been uploaded yet
+				if (boxGroup.vertexBufferContainer.getState() != GlGenericObjectVertexContainer.EState.RENDER)
+				{
+					continue;
+				}
+			}
+			
+			
+			
+			// render //
+			
+			profiler.popPush("rendering");
+			profiler.push(boxGroup.getResourceLocationNamespace());
+			profiler.push(boxGroup.getResourceLocationPath());
+			if (useInstancedRendering)
+			{
+				this.renderBoxGroupInstanced(shaderProgram, renderEventParam, boxGroup, camPos, profiler);
+			}
+			else
+			{
+				this.renderBoxGroupDirect(shaderProgram, renderEventParam, boxGroup, camPos, profiler);
+			}
+			profiler.pop(); // resource path
+			profiler.pop(); // resource namespace
+			
+			boxGroup.postRender(renderEventParam);
+		}
+		
+		
+		//==========//
+		// clean up //
+		//==========//
+		
+		profiler.popPush("cleanup");
+		
+		ApiEventInjector.INSTANCE.fireAllEvents(DhApiBeforeGenericRenderCleanupEvent.class, renderEventParam);
+		
+		if (renderWireframe)
+		{
+			// default back to GL_FILL since all other rendering uses it 
+			GL32.glPolygonMode(GL32.GL_FRONT_AND_BACK, GL32.GL_FILL);
+			GLMC.enableFaceCulling();
+		}
+		
+		shaderProgram.unbind();
+		
+		profiler.pop();
+	}
+	
+	//endregion
+	
+	
+	
+	//=====================//
+	// instanced rendering //
+	//=====================//
+	//region
+	
+	private void renderBoxGroupInstanced(
+			IDhApiGenericObjectShaderProgram shaderProgram, DhApiRenderParam renderEventParam, 
+			RenderableBoxGroup boxGroup, Vec3d camPos,
+			IProfilerWrapper profiler)
+	{
+		// update instance data //
+		
+		profiler.push("vertex setup");
+		
+		DhApiRenderableBoxGroupShading shading = boxGroup.shading;
+		if (shading == null)
+		{
+			shading = DEFAULT_SHADING;
+		}
+		
+		shaderProgram.fillIndirectUniformData(
+				renderEventParam,
+				shading, boxGroup,
+				camPos);
+		
+		
+		
+		// Bind instance data //
+		profiler.popPush("binding");
+		
+		GlGenericObjectVertexContainer container = (GlGenericObjectVertexContainer)(boxGroup.vertexBufferContainer);
+		
+		GL32.glBindBuffer(GL32.GL_ARRAY_BUFFER, container.color);
+		GL32.glEnableVertexAttribArray(1);
+		GL32.glVertexAttribPointer(1, 4, GL32.GL_FLOAT, false, 4 * Float.BYTES, 0);
+		this.vertexAttribDivisor(1, 1);
+		
+		GL32.glBindBuffer(GL32.GL_ARRAY_BUFFER, container.scale);
+		GL32.glEnableVertexAttribArray(2);
+		this.vertexAttribDivisor(2, 1);
+		GL32.glVertexAttribPointer(2, 3, GL32.GL_FLOAT, false, 3 * Float.BYTES, 0);
+		
+		GL32.glBindBuffer(GL32.GL_ARRAY_BUFFER, container.chunkPos);
+		GL32.glEnableVertexAttribArray(3);
+		this.vertexAttribDivisor(3, 1);
+		GL32.glVertexAttribIPointer(3, 3, GL32.GL_INT, 3 * Integer.BYTES, 0);
+		
+		GL32.glBindBuffer(GL32.GL_ARRAY_BUFFER, container.subChunkPos);
+		GL32.glEnableVertexAttribArray(4);
+		this.vertexAttribDivisor(4, 1);
+		GL32.glVertexAttribPointer(4, 3, GL32.GL_FLOAT, false, 3 * Float.BYTES, 0);
+		
+		GL32.glBindBuffer(GL32.GL_ARRAY_BUFFER, container.material);
+		GL32.glEnableVertexAttribArray(5);
+		this.vertexAttribDivisor(5, 1);
+		GL32.glVertexAttribIPointer(5, 1, GL32.GL_BYTE, Byte.BYTES, 0);
+		
+		
+		// Draw instanced
+		profiler.popPush("render");
+		if (container.uploadedBoxCount > 0)
+		{
+			GL32.glDrawElementsInstanced(GL32.GL_TRIANGLES, BOX_INDICES.length, GL32.GL_UNSIGNED_INT, 0, container.uploadedBoxCount);
+		}
+		
+		
+		// Clean up
+		profiler.popPush("cleanup");
+		
+		GL32.glDisableVertexAttribArray(1);
+		GL32.glDisableVertexAttribArray(2);
+		GL32.glDisableVertexAttribArray(3);
+		GL32.glDisableVertexAttribArray(4);
+		GL32.glDisableVertexAttribArray(5);
+		
+		profiler.pop();
+	}
+	/** 
+	 * Clean way to handle both {@link GL33#glVertexAttribDivisor} and {@link ARBInstancedArrays#glVertexAttribDivisorARB}
+	 * based on which one is supported.
+	 */
+	private void vertexAttribDivisor(int index, int divisor)
+	{
+		if (this.vertexAttribDivisorSupported)
+		{
+			GL33.glVertexAttribDivisor(index, divisor);	
+		}
+		else if(this.instancedArraysSupported)
+		{
+			ARBInstancedArrays.glVertexAttribDivisorARB(index, divisor);
+		}
+		else
+		{
+			throw new IllegalStateException("Instanced rendering isn't supported by this machine. Direct rendering should have been used instead.");
+		}
+	}
+	
+	//endregion
+	
+	
+	
+	//==================//
+	// direct rendering //
+	//==================//
+	//region
+	
+	private void renderBoxGroupDirect(
+		IDhApiGenericObjectShaderProgram shaderProgram, 
+		DhApiRenderParam renderEventParam, 
+		RenderableBoxGroup boxGroup, Vec3d camPos,
+		IProfilerWrapper profiler)
+	{
+		profiler.popPush("shared uniforms");
+		DhApiRenderableBoxGroupShading shading = boxGroup.shading;
+		if (shading == null)
+		{
+			shading = DhApiRenderableBoxGroupShading.getUnshaded();
+		}
+		
+		shaderProgram.fillSharedDirectUniformData(renderEventParam, shading, boxGroup, camPos);
+		
+		for (int i = 0; i < boxGroup.size(); i++)
+		{
+			try
+			{
+				DhApiRenderableBox box = boxGroup.get(i);
+				if (box != null)
+				{
+					profiler.popPush("direct uniforms");
+					shaderProgram.fillDirectUniformData(renderEventParam, boxGroup, box, camPos);
+					
+					profiler.popPush("render");
+					GL32.glDrawElements(GL32.GL_TRIANGLES, BOX_INDICES.length, GL32.GL_UNSIGNED_INT, 0);
+				}
+			}
+			catch (IndexOutOfBoundsException e)
+			{
+				// Concurrency issue, the list was modified while rendering
+				// this can probably be ignored.
+				// However, if it does become a problem we can add locks to the box group. 
+				break;
+			}
+		}
+		
+		profiler.pop();
+	}
+	
+	//endregion
+	
+	
+	
+	//=========//
+	// getters //
+	//=========//
+	//region
+	
+	/** @throws IllegalStateException if {@link #init()} function hasn't been called yet */
+	public boolean getInstancedRenderingAvailable() throws IllegalStateException
+	{
+		if (!this.init)
+		{
+			throw new IllegalStateException("GL initialization hasn't been completed.");
+		}
+		
+		return this.instancedRenderingAvailable; 
+	}
+	
+	//endregion
+	
+	
+	
+	//=========//
+	// F3 menu //
+	//=========//
+	//region
+	
+	public String getVboRenderDebugMenuString()
+	{
+		// get counts
+		int totalGroupCount = this.boxGroupById.size();
+		int totalBoxCount = 0;
+		
+		int activeGroupCount = 0;
+		int activeBoxCount = 0;
+		
+		for (long key : this.boxGroupById.keySet())
+		{
+			RenderableBoxGroup renderGroup = this.boxGroupById.get(key);
+			if (renderGroup.active)
+			{
+				activeGroupCount++;
+				activeBoxCount += renderGroup.size();
+			}
+			totalBoxCount += renderGroup.size();
+		}
+		
+		
+		return "Generic Obj #: " + F3Screen.NUMBER_FORMAT.format(activeGroupCount) + "/" + F3Screen.NUMBER_FORMAT.format(totalGroupCount) + ", " +
+				"Cube #: " + F3Screen.NUMBER_FORMAT.format(activeBoxCount) + "/" + F3Screen.NUMBER_FORMAT.format(totalBoxCount);
+	}
+	
+	//endregion
+	
+	
+	
+}

common/src/main/java/com/seibel/distanthorizons/common/render/openGl/generic/GlGenericObjectShaderProgram.java

@@ -0,0 +1,231 @@
+package com.seibel.distanthorizons.common.render.openGl.generic;
+
+import com.seibel.distanthorizons.api.interfaces.override.rendering.IDhApiGenericObjectShaderProgram;
+import com.seibel.distanthorizons.api.interfaces.render.IDhApiRenderableBoxGroup;
+import com.seibel.distanthorizons.api.methods.events.sharedParameterObjects.DhApiRenderParam;
+import com.seibel.distanthorizons.api.objects.math.DhApiVec3d;
+import com.seibel.distanthorizons.api.objects.math.DhApiVec3i;
+import com.seibel.distanthorizons.api.objects.render.DhApiRenderableBox;
+import com.seibel.distanthorizons.api.objects.render.DhApiRenderableBoxGroupShading;
+import com.seibel.distanthorizons.common.render.openGl.glObject.shader.GlShaderProgram;
+import com.seibel.distanthorizons.common.render.openGl.glObject.vertexAttribute.GlAbstractVertexAttribute;
+import com.seibel.distanthorizons.common.render.openGl.glObject.vertexAttribute.GlVertexPointer;
+import com.seibel.distanthorizons.common.wrappers.misc.LightMapWrapper;
+import com.seibel.distanthorizons.core.util.LodUtil;
+import com.seibel.distanthorizons.core.util.math.Mat4f;
+import com.seibel.distanthorizons.core.util.math.Vec3f;
+
+public class GlGenericObjectShaderProgram extends GlShaderProgram implements IDhApiGenericObjectShaderProgram
+{
+	public static final String VERTEX_SHADER_INSTANCED_PATH = "assets/distanthorizons/shaders/generic/gl/instanced/vert.vert";
+	public static final String VERTEX_SHADER_DIRECT_PATH = "assets/distanthorizons/shaders/generic/gl/direct/vert.vert";
+	public static final String FRAGMENT_SHADER_INSTANCED_PATH = "assets/distanthorizons/shaders/generic/gl/instanced/frag.frag";
+	public static final String FRAGMENT_SHADER_DIRECT_PATH = "assets/distanthorizons/shaders/generic/gl/direct/frag.frag";
+	
+	public final GlAbstractVertexAttribute va;
+	
+	
+	// shader uniforms
+	private final int directShaderTransformUniform;
+	private final int directShaderColorUniform;
+	
+	private final int instancedShaderOffsetChunkUniform;
+	private final int instancedShaderOffsetSubChunkUniform;
+	private final int instancedShaderCameraChunkPosUniform;
+	private final int instancedShaderCameraSubChunkPosUniform;
+	private final int instancedShaderProjectionModelViewMatrixUniform;
+	
+	private final int lightMapUniform;
+	private final int skyLightUniform;
+	private final int blockLightUniform;
+	
+	private final int northShadingUniform;
+	private final int southShadingUniform;
+	private final int eastShadingUniform;
+	private final int westShadingUniform;
+	private final int topShadingUniform;
+	private final int bottomShadingUniform;
+	
+	
+	
+	//=============//
+	// constructor //
+	//=============//
+	
+	public GlGenericObjectShaderProgram(boolean useInstancedRendering)
+	{
+		super(
+				useInstancedRendering ? VERTEX_SHADER_INSTANCED_PATH : VERTEX_SHADER_DIRECT_PATH,
+				useInstancedRendering ? FRAGMENT_SHADER_INSTANCED_PATH : FRAGMENT_SHADER_DIRECT_PATH,
+				"vPosition"
+		);
+		
+		this.va = GlAbstractVertexAttribute.create();
+		this.va.bind();
+		// Pos
+		this.va.setVertexAttribute(0, 0, GlVertexPointer.addVec3Pointer(false));
+		this.va.completeAndCheck(Float.BYTES * 3);
+		
+		this.directShaderTransformUniform = this.tryGetUniformLocation("uTransform");
+		this.directShaderColorUniform = this.tryGetUniformLocation("uColor");
+		
+		this.instancedShaderOffsetChunkUniform = this.tryGetUniformLocation("uOffsetChunk");
+		this.instancedShaderOffsetSubChunkUniform = this.tryGetUniformLocation("uOffsetSubChunk");
+		this.instancedShaderCameraChunkPosUniform = this.tryGetUniformLocation("uCameraPosChunk");
+		this.instancedShaderCameraSubChunkPosUniform = this.tryGetUniformLocation("uCameraPosSubChunk");
+		this.instancedShaderProjectionModelViewMatrixUniform = this.tryGetUniformLocation("uProjectionMvm");
+		
+		this.lightMapUniform = this.getUniformLocation("uLightMap");
+		this.skyLightUniform = this.getUniformLocation("uSkyLight");
+		this.blockLightUniform = this.getUniformLocation("uBlockLight");
+		this.northShadingUniform = this.getUniformLocation("uNorthShading");
+		this.southShadingUniform = this.getUniformLocation("uSouthShading");
+		this.eastShadingUniform = this.getUniformLocation("uEastShading");
+		this.westShadingUniform = this.getUniformLocation("uWestShading");
+		this.topShadingUniform = this.getUniformLocation("uTopShading");
+		this.bottomShadingUniform = this.getUniformLocation("uBottomShading");
+		
+	}
+	
+	
+	
+	//=========//
+	// methods //
+	//=========//
+	
+	@Override
+	public void bind(DhApiRenderParam renderEventParam)
+	{
+		super.bind();
+		this.va.bind();
+	}
+	@Override
+	public void unbind()
+	{
+		super.unbind();
+		this.va.unbind();
+	}
+	
+	@Override
+	public void free()
+	{
+		this.va.free();
+		super.free();
+	}
+	
+	@Override
+	public void bindVertexBuffer(int vbo) { this.va.bindBufferToAllBindingPoints(vbo); }
+	
+	@Override
+	public void fillIndirectUniformData(
+			DhApiRenderParam renderParameters,
+			DhApiRenderableBoxGroupShading shading, IDhApiRenderableBoxGroup boxGroup,
+			DhApiVec3d camPos
+		)
+	{
+		Mat4f projectionMvmMatrix = new Mat4f(renderParameters.dhProjectionMatrix);
+		projectionMvmMatrix.multiply(renderParameters.dhModelViewMatrix);
+		
+		super.bind();
+		
+		
+		
+		
+		this.setUniform(this.instancedShaderOffsetChunkUniform,
+				new DhApiVec3i(
+						LodUtil.getChunkPosFromDouble(boxGroup.getOriginBlockPos().x),
+						LodUtil.getChunkPosFromDouble(boxGroup.getOriginBlockPos().y),
+						LodUtil.getChunkPosFromDouble(boxGroup.getOriginBlockPos().z)
+				));
+		this.setUniform(this.instancedShaderOffsetSubChunkUniform,
+				new Vec3f(
+						LodUtil.getSubChunkPosFromDouble(boxGroup.getOriginBlockPos().x),
+						LodUtil.getSubChunkPosFromDouble(boxGroup.getOriginBlockPos().y),
+						LodUtil.getSubChunkPosFromDouble(boxGroup.getOriginBlockPos().z)
+				));
+		
+		this.setUniform(this.instancedShaderCameraChunkPosUniform,
+				new DhApiVec3i(
+						LodUtil.getChunkPosFromDouble(camPos.x),
+						LodUtil.getChunkPosFromDouble(camPos.y),
+						LodUtil.getChunkPosFromDouble(camPos.z)
+				));
+		this.setUniform(this.instancedShaderCameraSubChunkPosUniform,
+				new Vec3f(
+						LodUtil.getSubChunkPosFromDouble(camPos.x),
+						LodUtil.getSubChunkPosFromDouble(camPos.y),
+						LodUtil.getSubChunkPosFromDouble(camPos.z)
+				));
+		
+		this.setUniform(this.instancedShaderProjectionModelViewMatrixUniform, projectionMvmMatrix);
+		
+		this.setUniform(this.lightMapUniform, LightMapWrapper.GL_BOUND_INDEX);
+		this.setUniform(this.skyLightUniform, boxGroup.getSkyLight());
+		this.setUniform(this.blockLightUniform, boxGroup.getBlockLight());
+		
+		
+		this.setUniform(this.northShadingUniform, shading.north);
+		this.setUniform(this.southShadingUniform, shading.south);
+		this.setUniform(this.eastShadingUniform, shading.east);
+		this.setUniform(this.westShadingUniform, shading.west);
+		this.setUniform(this.topShadingUniform, shading.top);
+		this.setUniform(this.bottomShadingUniform, shading.bottom);
+		
+		
+	}
+	
+	
+	@Override 
+	public void fillSharedDirectUniformData(
+			DhApiRenderParam renderParameters, 
+			DhApiRenderableBoxGroupShading shading, IDhApiRenderableBoxGroup boxGroup, 
+			DhApiVec3d camPos)
+	{
+		
+		this.setUniform(this.lightMapUniform, LightMapWrapper.GL_BOUND_INDEX);
+		this.setUniform(this.skyLightUniform, boxGroup.getSkyLight());
+		this.setUniform(this.blockLightUniform, boxGroup.getBlockLight());
+		
+		
+		this.setUniform(this.northShadingUniform, shading.north);
+		this.setUniform(this.southShadingUniform, shading.south);
+		this.setUniform(this.eastShadingUniform, shading.east);
+		this.setUniform(this.westShadingUniform, shading.west);
+		this.setUniform(this.topShadingUniform, shading.top);
+		this.setUniform(this.bottomShadingUniform, shading.bottom);
+		
+	}
+	
+	public void fillDirectUniformData(
+			DhApiRenderParam renderParameters,
+			IDhApiRenderableBoxGroup boxGroup, DhApiRenderableBox box, 
+			DhApiVec3d camPos)
+	{
+		Mat4f projectionMvmMatrix = new Mat4f(renderParameters.dhProjectionMatrix);
+		projectionMvmMatrix.multiply(renderParameters.dhModelViewMatrix);
+		
+		Mat4f boxTransform = Mat4f.createTranslateMatrix(
+				(float) (box.minPos.x + boxGroup.getOriginBlockPos().x - camPos.x),
+				(float) (box.minPos.y + boxGroup.getOriginBlockPos().y - camPos.y),
+				(float) (box.minPos.z + boxGroup.getOriginBlockPos().z - camPos.z));
+		boxTransform.multiply(Mat4f.createScaleMatrix(
+				(float) (box.maxPos.x - box.minPos.x),
+				(float) (box.maxPos.y - box.minPos.y),
+				(float) (box.maxPos.z - box.minPos.z)));
+		projectionMvmMatrix.multiply(boxTransform);
+		this.setUniform(this.directShaderTransformUniform, projectionMvmMatrix);
+		
+		this.setUniform(this.directShaderColorUniform, box.color);
+		
+	}
+	
+	
+	
+	@Override
+	public int getId() { return this.id; }
+	
+	/** The base DH render program should always render */
+	@Override
+	public boolean overrideThisFrame() { return true; }
+	
+}

common/src/main/java/com/seibel/distanthorizons/common/render/openGl/generic/GlGenericObjectVertexContainer.java

@@ -0,0 +1,180 @@
+package com.seibel.distanthorizons.common.render.openGl.generic;
+
+import com.seibel.distanthorizons.api.objects.render.DhApiRenderableBox;
+import com.seibel.distanthorizons.common.wrappers.minecraft.MinecraftGLWrapper;
+import com.seibel.distanthorizons.core.logging.DhLogger;
+import com.seibel.distanthorizons.core.logging.DhLoggerBuilder;
+import com.seibel.distanthorizons.core.render.renderer.RenderableBoxGroup;
+import com.seibel.distanthorizons.core.util.LodUtil;
+import com.seibel.distanthorizons.core.wrapperInterfaces.render.objects.IDhGenericObjectVertexBufferContainer;
+import org.lwjgl.opengl.GL32;
+
+import java.awt.*;
+import java.util.List;
+
+/**
+ * For use by {@link RenderableBoxGroup} 
+ * 
+ * @see RenderableBoxGroup
+ */
+public class GlGenericObjectVertexContainer implements IDhGenericObjectVertexBufferContainer
+{
+	private static final DhLogger LOGGER = new DhLoggerBuilder().build();
+	
+	private static final MinecraftGLWrapper GLMC = MinecraftGLWrapper.INSTANCE;
+	
+	
+	
+	public int chunkPos = 0;
+	public int subChunkPos = 0;
+	public int scale = 0;
+	public int color = 0;
+	public int material = 0;
+	
+	public int[] chunkPosData = new int[0];
+	public float[] subChunkPosData = new float[0];
+	public float[] scalingData = new float[0];
+	public float[] colorData = new float[0];
+	public int[] materialData = new int[0];
+	
+	public int uploadedBoxCount = 0;
+	
+	private EState state = EState.NEW;
+	@Override 
+	public EState getState() { return this.state; }
+	@Override 
+	public void setState(EState state) { this.state = state; }
+	
+	
+	
+	//===========================//
+	// render building/uploading //
+	//===========================//
+	//region
+	
+	public void updateVertexData(List<DhApiRenderableBox> uploadBoxList)
+	{
+		int boxCount = uploadBoxList.size();
+		
+		
+		// recreate the data arrays if their size is different
+		if (this.uploadedBoxCount != boxCount)
+		{
+			this.uploadedBoxCount = boxCount;
+			
+			this.chunkPosData = new int[boxCount * 3]; // 3 elements XYZ
+			this.subChunkPosData = new float[boxCount * 3]; // 3 elements XYZ
+			this.scalingData = new float[boxCount * 3]; // 3 elements XYZ
+			
+			this.colorData = new float[boxCount * 4]; // 4 elements, RGBA
+			this.materialData = new int[boxCount];
+		}
+		
+		
+		// transformation / scaling //
+		for (int i = 0; i < boxCount; i++)
+		{
+			DhApiRenderableBox box = uploadBoxList.get(i);
+			
+			int dataIndex = i * 3;
+			
+			this.chunkPosData[dataIndex] = LodUtil.getChunkPosFromDouble(box.minPos.x);
+			this.chunkPosData[dataIndex + 1] = LodUtil.getChunkPosFromDouble(box.minPos.y);
+			this.chunkPosData[dataIndex + 2] = LodUtil.getChunkPosFromDouble(box.minPos.z);
+			
+			this.subChunkPosData[dataIndex] = LodUtil.getSubChunkPosFromDouble(box.minPos.x);
+			this.subChunkPosData[dataIndex + 1] = LodUtil.getSubChunkPosFromDouble(box.minPos.y);
+			this.subChunkPosData[dataIndex + 2] = LodUtil.getSubChunkPosFromDouble(box.minPos.z);
+			
+			this.scalingData[dataIndex] = (float) (box.maxPos.x - box.minPos.x);
+			this.scalingData[dataIndex + 1] = (float) (box.maxPos.y - box.minPos.y);
+			this.scalingData[dataIndex + 2] = (float) (box.maxPos.z - box.minPos.z);
+		}
+		
+		
+		// colors/materials //
+		for (int i = 0; i < boxCount; i++)
+		{
+			DhApiRenderableBox box = uploadBoxList.get(i);
+			Color color = box.color;
+			int colorIndex = i * 4;
+			this.colorData[colorIndex] = color.getRed() / 255.0f;
+			this.colorData[colorIndex + 1] = color.getGreen() / 255.0f;
+			this.colorData[colorIndex + 2] = color.getBlue() / 255.0f;
+			this.colorData[colorIndex + 3] = color.getAlpha() / 255.0f;
+			
+			this.materialData[i] = box.material;
+		}
+		
+		this.state = GlGenericObjectVertexContainer.EState.READY_TO_UPLOAD;
+	}
+	
+	public void uploadDataToGpu()
+	{
+		this.tryCreateBuffers();
+		
+		// Upload transformation matrices
+		GL32.glBindBuffer(GL32.GL_ARRAY_BUFFER, this.chunkPos);
+		GL32.glBufferData(GL32.GL_ARRAY_BUFFER, this.chunkPosData, GL32.GL_DYNAMIC_DRAW);
+		GL32.glBindBuffer(GL32.GL_ARRAY_BUFFER, this.subChunkPos);
+		GL32.glBufferData(GL32.GL_ARRAY_BUFFER, this.subChunkPosData, GL32.GL_DYNAMIC_DRAW);
+		GL32.glBindBuffer(GL32.GL_ARRAY_BUFFER, this.scale);
+		GL32.glBufferData(GL32.GL_ARRAY_BUFFER, this.scalingData, GL32.GL_DYNAMIC_DRAW);
+		
+		// Upload colors
+		GL32.glBindBuffer(GL32.GL_ARRAY_BUFFER, this.color);
+		GL32.glBufferData(GL32.GL_ARRAY_BUFFER, this.colorData, GL32.GL_DYNAMIC_DRAW);
+		
+		// Upload materials
+		GL32.glBindBuffer(GL32.GL_ARRAY_BUFFER, this.material);
+		GL32.glBufferData(GL32.GL_ARRAY_BUFFER, this.materialData, GL32.GL_DYNAMIC_DRAW);
+		
+		this.state = EState.RENDER;
+	}
+	/** needs to be done on the render thread */
+	private void tryCreateBuffers()
+	{
+		if (this.chunkPos == 0)
+		{
+			this.chunkPos = GLMC.glGenBuffers();
+			this.subChunkPos = GLMC.glGenBuffers();
+			this.scale = GLMC.glGenBuffers();
+			this.color = GLMC.glGenBuffers();
+			this.material = GLMC.glGenBuffers();
+		}
+	}
+	
+	//endregion
+	
+	
+	
+	//================//
+	// base overrides //
+	//================//
+	//region
+	
+	@Override
+	public void close()
+	{
+		tryDeleteBuffer(this.chunkPos);
+		tryDeleteBuffer(this.subChunkPos);
+		tryDeleteBuffer(this.scale);
+		tryDeleteBuffer(this.color);
+		tryDeleteBuffer(this.material);
+	}
+	private static void tryDeleteBuffer(int bufferId)
+	{
+		// usually unnecessary, but just in case
+		if (bufferId != 0)
+		{
+			GLMC.glDeleteBuffers(bufferId);
+		}
+	}
+	
+	//endregion
+	
+	
+	
+	
+	
+}

common/src/main/java/com/seibel/distanthorizons/common/render/openGl/glObject/GLProxy.java

@@ -0,0 +1,347 @@
+/*
+ *    This file is part of the Distant Horizons mod
+ *    licensed under the GNU LGPL 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 Lesser 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 Lesser General Public License for more details.
+ *
+ *    You should have received a copy of the GNU Lesser General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.seibel.distanthorizons.common.render.openGl.glObject;
+
+import com.seibel.distanthorizons.api.enums.config.EDhApiGLErrorHandlingMode;
+import com.seibel.distanthorizons.api.enums.config.EDhApiGpuUploadMethod;
+import com.seibel.distanthorizons.core.config.Config;
+import com.seibel.distanthorizons.core.dependencyInjection.SingletonInjector;
+import com.seibel.distanthorizons.core.jar.EPlatform;
+import com.seibel.distanthorizons.core.logging.DhLogger;
+import com.seibel.distanthorizons.core.logging.DhLoggerBuilder;
+import com.seibel.distanthorizons.core.util.objects.GLMessages.*;
+import com.seibel.distanthorizons.core.wrapperInterfaces.minecraft.IMinecraftClientWrapper;
+import com.seibel.distanthorizons.coreapi.ModInfo;
+import org.lwjgl.glfw.GLFW;
+import org.lwjgl.opengl.GL;
+import org.lwjgl.opengl.GL32;
+import org.lwjgl.opengl.GLCapabilities;
+import org.lwjgl.opengl.GLUtil;
+
+import java.io.PrintStream;
+import java.util.Collections;
+import java.util.Set;
+import java.util.concurrent.ConcurrentHashMap;
+
+/**
+ * A singleton that holds references to different openGL contexts
+ * and GPU capabilities.
+ */
+public class GLProxy
+{
+	public static final DhLogger LOGGER = new DhLoggerBuilder()
+			.fileLevelConfig(Config.Common.Logging.logRendererGLEventToFile)
+			.chatLevelConfig(Config.Common.Logging.logRendererGLEventToChat)
+			.build();
+	
+	public static final Set<String> LOGGED_GL_MESSAGES = Collections.newSetFromMap(new ConcurrentHashMap<String, Boolean>());
+	
+	
+	
+	private static GLProxy instance = null;
+	
+	
+	/** Minecraft's GL capabilities */
+	public final GLCapabilities glCapabilities;
+	
+	public boolean namedObjectSupported = false; // ~OpenGL 4.5 (UNUSED CURRENTLY)
+	public boolean bufferStorageSupported = false; // ~OpenGL 4.4
+	public boolean vertexAttributeBufferBindingSupported = false; // ~OpenGL 4.3
+	public boolean instancedArraysSupported = false;
+	public boolean vertexAttribDivisorSupported = false; // OpenGL 3.3 or newer
+	
+	private final EDhApiGpuUploadMethod preferredUploadMethod;
+	
+	public final GLMessageBuilder vanillaDebugMessageBuilder = 
+		new GLMessageBuilder(
+			(type) ->
+			{
+				if (type == EGLMessageType.POP_GROUP)
+					return false;
+				else if (type == EGLMessageType.PUSH_GROUP)
+					return false;
+				else if (type == EGLMessageType.MARKER)
+					return false;
+				else
+					return true;
+			},
+			(severity) ->
+			{
+				// notifications can generally be ignored (if they are logged at all)
+				if (severity == EGLMessageSeverity.NOTIFICATION)
+					return false;
+				else
+					return true;
+			},
+			null
+	);
+	
+	
+	
+	//=============//
+	// constructor //
+	//=============//
+	//region
+	
+	private GLProxy() throws IllegalStateException
+	{
+		// this must be created on minecraft's render context to work correctly
+		if (GLFW.glfwGetCurrentContext() == 0L)
+		{
+			throw new IllegalStateException(GLProxy.class.getSimpleName() + " was created outside the render thread!");
+		}
+		
+		LOGGER.info("Creating " + GLProxy.class.getSimpleName() + "... If this is the last message you see there must have been an OpenGL error.");
+		LOGGER.info("Lod Render OpenGL version [" + GL32.glGetString(GL32.GL_VERSION) + "].");
+		
+		
+		
+		
+		//============================//
+		// get Minecraft's GL context //
+		//============================//
+		
+		// get Minecraft's capabilities
+		this.glCapabilities = GL.getCapabilities();
+		
+		// crash the game if the GPU doesn't support OpenGL 3.2
+		if (!this.glCapabilities.OpenGL32)
+		{
+			String supportedVersionInfo = this.getFailedVersionInfo(this.glCapabilities);
+			
+			// See full requirement at above.
+			String errorMessage = ModInfo.READABLE_NAME + " was initializing " + GLProxy.class.getSimpleName()
+					+ " and discovered this GPU doesn't meet the OpenGL requirements. Sorry I couldn't tell you sooner :(\n" +
+					"Additional info:\n" + supportedVersionInfo;
+			IMinecraftClientWrapper MC = SingletonInjector.INSTANCE.get(IMinecraftClientWrapper.class);
+			MC.crashMinecraft(errorMessage, new UnsupportedOperationException("Distant Horizon OpenGL requirements not met"));
+		}
+	 	LOGGER.info("minecraftGlCapabilities:\n" + this.versionInfoToString(this.glCapabilities));
+		
+		if (Config.Client.Advanced.Debugging.OpenGl.overrideVanillaGLLogger.get())
+		{
+			GLUtil.setupDebugMessageCallback(new PrintStream(new GLMessageOutputStream(GLProxy::logMessage, this.vanillaDebugMessageBuilder), true));
+		}
+		
+		
+		
+		//======================//
+		// get GPU capabilities //
+		//======================//
+		
+		// UNUSED currently
+		// Check if we can use the named version of all calls, which is available in GL4.5 or after
+		this.namedObjectSupported = this.glCapabilities.glNamedBufferData != 0L; //Nullptr
+		
+		// Check if we can use the Buffer Storage, which is available in GL4.4 or after
+		this.bufferStorageSupported = this.glCapabilities.glBufferStorage != 0L; // Nullptr
+		if (!this.bufferStorageSupported)
+		{
+			LOGGER.info("This GPU doesn't support Buffer Storage (OpenGL 4.4), falling back to using other methods.");
+		}
+		
+		// Check if we can use the make-over version of Vertex Attribute, which is available in GL4.3 or after
+		this.vertexAttributeBufferBindingSupported = this.glCapabilities.glBindVertexBuffer != 0L; // Nullptr
+		
+		// used by instanced rendering
+		this.vertexAttribDivisorSupported = this.glCapabilities.OpenGL33;
+		// denotes if ARBInstancedArrays.glVertexAttribDivisorARB() is available or not
+		// can be used as a backup if MC didn't create a GL 3.3+ context
+		this.instancedArraysSupported = this.glCapabilities.GL_ARB_instanced_arrays;
+		
+		// get the best automatic upload method
+		String vendor = GL32.glGetString(GL32.GL_VENDOR).toUpperCase(); // example return: "NVIDIA CORPORATION"
+		if (EPlatform.get() != EPlatform.MACOS)
+		{
+			if (vendor.contains("NVIDIA") || vendor.contains("GEFORCE"))
+			{
+				// NVIDIA card
+				this.preferredUploadMethod = this.bufferStorageSupported ? EDhApiGpuUploadMethod.BUFFER_STORAGE : EDhApiGpuUploadMethod.SUB_DATA;
+			}
+			else
+			{
+				// AMD or Intel card
+				this.preferredUploadMethod = this.bufferStorageSupported ? EDhApiGpuUploadMethod.BUFFER_STORAGE : EDhApiGpuUploadMethod.DATA;
+			}
+		}
+		else
+		{
+			// Mac may have an issue with Buffer Storage, so default to the most basic
+			// form of uploading
+			this.preferredUploadMethod = EDhApiGpuUploadMethod.DATA;
+		}
+		LOGGER.info("GPU Vendor [" + vendor + "] with OS [" + EPlatform.get().getName() + "], Preferred upload method is [" + this.preferredUploadMethod + "].");
+		
+		
+		
+		//==========//
+		// clean up //
+		//==========//
+		
+		// GLProxy creation success
+		LOGGER.info(GLProxy.class.getSimpleName() + " creation successful. OpenGL smiles upon you this day.");
+	}
+	
+	//endregion
+	
+	
+	
+	//=========//
+	// getters //
+	//=========//
+	//region
+	
+	public static boolean hasInstance() { return instance != null; }
+	/** @throws IllegalStateException if the Proxy hasn't been created yet and this is called outside the render thread */
+	public static GLProxy getInstance() throws IllegalStateException
+	{
+		if (instance == null)
+		{
+			instance = new GLProxy();
+		}
+		
+		return instance;
+	}
+	
+	public EDhApiGpuUploadMethod getGpuUploadMethod() 
+	{
+		EDhApiGpuUploadMethod uploadOverride = Config.Client.Advanced.Debugging.OpenGl.glUploadMode.get();
+		if (uploadOverride == EDhApiGpuUploadMethod.AUTO)
+		{
+			return this.preferredUploadMethod;
+		}
+		
+		return uploadOverride;
+	}
+	
+	public static boolean runningOnRenderThread()
+	{
+		long currentContext = GLFW.glfwGetCurrentContext();
+		return currentContext != 0L; // if the context isn't null, it's the MC context
+	}
+	
+	//endregion
+	
+	
+	
+	//=========//
+	// logging //
+	//=========//
+	//region
+	
+	/** this method is called on the render thread at the point of the GL Error */
+	private static void logMessage(GLMessage msg)
+	{
+		EDhApiGLErrorHandlingMode errorHandlingMode = Config.Client.Advanced.Debugging.OpenGl.glErrorHandlingMode.get();
+		if (errorHandlingMode == EDhApiGLErrorHandlingMode.IGNORE)
+		{
+			return;
+		}
+		
+		
+		
+		boolean onlyLogOnce = Config.Client.Advanced.Debugging.OpenGl.onlyLogGlErrorsOnce.get();
+		String errorMessage = "GL ERROR [" + msg.id + "] from [" + msg.source + "]: [" + msg.message + "]"+(onlyLogOnce ? " this message will only be logged once" : "")+".";
+		if (onlyLogOnce
+			&& !LOGGED_GL_MESSAGES.add(errorMessage))
+		{
+			// this message has already been logged
+			return;
+		}
+		
+		
+		// create an exception so we get a stacktrace of where the message was triggered from
+		RuntimeException exception = new RuntimeException(errorMessage);
+		
+		if (msg.type == EGLMessageType.ERROR || msg.type == EGLMessageType.UNDEFINED_BEHAVIOR)
+		{
+			// critical error
+			
+			LOGGER.error(exception.getMessage(), exception);
+			
+			if (errorHandlingMode == EDhApiGLErrorHandlingMode.LOG_THROW)
+			{
+				// will probably crash the game,
+				// good for quickly checking if there's a problem while preventing log spam
+				throw exception;
+			}
+		}
+		else
+		{
+			// non-critical log
+			
+			EGLMessageSeverity severity = msg.severity;
+			if (severity == null)
+			{
+				// just in case the message was malformed
+				severity = EGLMessageSeverity.LOW;
+			}
+			
+			switch (severity)
+			{
+				case HIGH:
+					LOGGER.error(exception.getMessage(), exception);
+					break;
+				case MEDIUM:
+					LOGGER.warn(exception.getMessage(), exception);
+					break;
+				case LOW:
+					LOGGER.info(exception.getMessage(), exception);
+					break;
+				case NOTIFICATION:
+					LOGGER.debug(exception.getMessage(), exception);
+					break;
+			}
+		}
+	}
+	
+	//endregion
+	
+	
+	
+	//================//
+	// helper methods //
+	//================//
+	//region
+	
+	private String getFailedVersionInfo(GLCapabilities c)
+	{
+		return "Your OpenGL support:\n" +
+				"openGL version 3.2+: [" + c.OpenGL32 + "] <- REQUIRED\n" +
+				"Vertex Attribute Buffer Binding: [" + (c.glVertexAttribBinding != 0) + "] <- optional improvement\n" +
+				"Buffer Storage: [" + (c.glBufferStorage != 0) + "] <- optional improvement\n" +
+				"If you noticed that your computer supports higher OpenGL versions"
+				+ " but not the required version, try running the game in compatibility mode."
+				+ " (How you turn that on, I have no clue~)";
+	}
+	
+	private String versionInfoToString(GLCapabilities c)
+	{
+		return "Your OpenGL support:\n" +
+				"openGL version 3.2+: [" + c.OpenGL32 + "] <- REQUIRED\n" +
+				"Vertex Attribute Buffer Binding: [" + (c.glVertexAttribBinding != 0) + "] <- optional improvement\n" +
+				"Buffer Storage: [" + (c.glBufferStorage != 0) + "] <- optional improvement\n";
+	}
+	
+	//endregion
+	
+	
+	
+}

common/src/main/java/com/seibel/distanthorizons/common/render/openGl/glObject/GLState.java

@@ -0,0 +1,259 @@
+/*
+ *    This file is part of the Distant Horizons mod
+ *    licensed under the GNU LGPL 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 Lesser 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 Lesser General Public License for more details.
+ *
+ *    You should have received a copy of the GNU Lesser General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.seibel.distanthorizons.common.render.openGl.glObject;
+
+import com.seibel.distanthorizons.common.render.openGl.glObject.enums.GLEnums;
+import com.seibel.distanthorizons.common.wrappers.minecraft.MinecraftGLWrapper;
+import org.lwjgl.opengl.GL32;
+
+public class GLState implements AutoCloseable
+{
+	private static final MinecraftGLWrapper GLMC = MinecraftGLWrapper.INSTANCE;
+	
+	
+	public int program;
+	public int vao;
+	public int vbo;
+	public int ebo;
+	public int fbo;
+	public int texture2D;
+	/** IE: GL_TEXTURE0, GL_TEXTURE1, etc. */
+	public int activeTextureNumber;
+	public int texture0;
+	public int texture1;
+	public int texture2;
+	public int texture3;
+	public int frameBufferTexture0;
+	public int frameBufferTexture1;
+	public int frameBufferDepthTexture;
+	public boolean blend;
+	public boolean scissor;
+	public int blendEqRGB;
+	public int blendEqAlpha;
+	public int blendSrcColor;
+	public int blendSrcAlpha;
+	public int blendDstColor;
+	public int blendDstAlpha;
+	public boolean depth;
+	public boolean writeToDepthBuffer;
+	public int depthFunc;
+	public boolean stencil;
+	public int stencilFunc;
+	public int stencilRef;
+	public int stencilMask;
+	public int[] view;
+	public boolean cull;
+	public int cullMode;
+	public int polyMode;
+	
+	
+	
+	public GLState() { this.saveState(); }
+	
+	public void saveState()
+	{
+		this.program = GL32.glGetInteger(GL32.GL_CURRENT_PROGRAM);
+		this.vao = GL32.glGetInteger(GL32.GL_VERTEX_ARRAY_BINDING);
+		this.vbo = GL32.glGetInteger(GL32.GL_ARRAY_BUFFER_BINDING);
+		this.ebo = GL32.glGetInteger(GL32.GL_ELEMENT_ARRAY_BUFFER_BINDING);
+		
+		this.fbo = GL32.glGetInteger(GL32.GL_FRAMEBUFFER_BINDING);
+		
+		this.texture2D = GL32.glGetInteger(GL32.GL_TEXTURE_BINDING_2D);
+		this.activeTextureNumber = GL32.glGetInteger(GL32.GL_ACTIVE_TEXTURE);
+		
+		GLMC.glActiveTexture(GL32.GL_TEXTURE0);
+		this.texture0 = GL32.glGetInteger(GL32.GL_TEXTURE_BINDING_2D);
+		
+		GLMC.glActiveTexture(GL32.GL_TEXTURE1);
+		this.texture1 = GL32.glGetInteger(GL32.GL_TEXTURE_BINDING_2D);
+		
+		GLMC.glActiveTexture(GL32.GL_TEXTURE2); // problem with Iris
+		this.texture2 = GL32.glGetInteger(GL32.GL_TEXTURE_BINDING_2D);
+		
+		GLMC.glActiveTexture(GL32.GL_TEXTURE3);
+		this.texture3 = GL32.glGetInteger(GL32.GL_TEXTURE_BINDING_2D);
+		
+		GLMC.glActiveTexture(this.activeTextureNumber);
+		
+		if (this.fbo != 0)
+		{
+			this.frameBufferTexture0 = GL32.glGetFramebufferAttachmentParameteri(GL32.GL_FRAMEBUFFER, GL32.GL_COLOR_ATTACHMENT0, GL32.GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME);
+			this.frameBufferTexture1 = GL32.glGetFramebufferAttachmentParameteri(GL32.GL_FRAMEBUFFER, GL32.GL_COLOR_ATTACHMENT1, GL32.GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME);
+			this.frameBufferDepthTexture = GL32.glGetFramebufferAttachmentParameteri(GL32.GL_FRAMEBUFFER, GL32.GL_DEPTH_ATTACHMENT, GL32.GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME);
+		}
+		else
+		{
+			// attempting to get values from the default framebuffer can throw errors on Linux
+			this.frameBufferTexture0 = 0;
+			this.frameBufferTexture1 = 0;
+			this.frameBufferDepthTexture = 0;
+		}
+		
+		this.blend = GL32.glIsEnabled(GL32.GL_BLEND);
+		this.scissor = GL32.glIsEnabled(GL32.GL_SCISSOR_TEST);
+		this.blendEqRGB = GL32.glGetInteger(GL32.GL_BLEND_EQUATION_RGB);
+		this.blendEqAlpha = GL32.glGetInteger(GL32.GL_BLEND_EQUATION_ALPHA);
+		this.blendSrcColor = GL32.glGetInteger(GL32.GL_BLEND_SRC_RGB);
+		this.blendSrcAlpha = GL32.glGetInteger(GL32.GL_BLEND_SRC_ALPHA);
+		this.blendDstColor = GL32.glGetInteger(GL32.GL_BLEND_DST_RGB);
+		this.blendDstAlpha = GL32.glGetInteger(GL32.GL_BLEND_DST_ALPHA);
+		this.depth = GL32.glIsEnabled(GL32.GL_DEPTH_TEST);
+		this.writeToDepthBuffer = GL32.glGetInteger(GL32.GL_DEPTH_WRITEMASK) == GL32.GL_TRUE;
+		this.depthFunc = GL32.glGetInteger(GL32.GL_DEPTH_FUNC);
+		this.stencil = GL32.glIsEnabled(GL32.GL_STENCIL_TEST);
+		this.stencilFunc = GL32.glGetInteger(GL32.GL_STENCIL_FUNC);
+		this.stencilRef = GL32.glGetInteger(GL32.GL_STENCIL_REF);
+		this.stencilMask = GL32.glGetInteger(GL32.GL_STENCIL_VALUE_MASK);
+		this.view = new int[4];
+		GL32.glGetIntegerv(GL32.GL_VIEWPORT, this.view);
+		this.cull = GL32.glIsEnabled(GL32.GL_CULL_FACE);
+		this.cullMode = GL32.glGetInteger(GL32.GL_CULL_FACE_MODE);
+		this.polyMode = GL32.glGetInteger(GL32.GL_POLYGON_MODE);
+	}
+	
+	@Override 
+	public void close()
+	{
+		// explicitly unbinding the frame buffer is necessary to prevent GL_CLEAR calls from hitting the wrong buffer
+		GLMC.glBindFramebuffer(GL32.GL_FRAMEBUFFER, 0);
+		boolean frameBufferSet = false;
+		
+		if (this.fbo != 0 && GL32.glIsFramebuffer(this.fbo))
+		{
+			GLMC.glBindFramebuffer(GL32.GL_FRAMEBUFFER, this.fbo);
+			frameBufferSet = true;
+		}
+		
+		
+		if (this.blend)
+		{
+			GLMC.enableBlend();
+		}
+		else
+		{
+			GLMC.disableBlend();
+		}
+		
+		if (this.scissor)
+		{
+			GLMC.enableScissorTest();
+		}
+		else
+		{
+			GLMC.disableScissorTest();
+		}
+		
+		GLMC.glActiveTexture(GL32.GL_TEXTURE0);
+		GLMC.glBindTexture(GL32.glIsTexture(this.texture0) ? this.texture0 : 0);
+		
+		GLMC.glActiveTexture(GL32.GL_TEXTURE1);
+		GLMC.glBindTexture(GL32.glIsTexture(this.texture1) ? this.texture1 : 0);
+		
+		GLMC.glActiveTexture(GL32.GL_TEXTURE2);
+		GLMC.glBindTexture(GL32.glIsTexture(this.texture2) ? this.texture2 : 0);
+		
+		GLMC.glActiveTexture(GL32.GL_TEXTURE3);
+		GLMC.glBindTexture(GL32.glIsTexture(this.texture3) ? this.texture3 : 0);
+		
+		GLMC.glActiveTexture(this.activeTextureNumber);
+		GLMC.glBindTexture(GL32.glIsTexture(this.texture2D) ? this.texture2D : 0);
+		
+		// attempting to set textures on the default frame buffer (ID 0) will throw errors
+		if (frameBufferSet)
+		{
+			GL32.glFramebufferTexture2D(GL32.GL_FRAMEBUFFER, GL32.GL_COLOR_ATTACHMENT0, GL32.GL_TEXTURE_2D, this.frameBufferTexture0, 0);
+			GL32.glFramebufferTexture2D(GL32.GL_FRAMEBUFFER, GL32.GL_COLOR_ATTACHMENT1, GL32.GL_TEXTURE_2D, this.frameBufferTexture1, 0);
+			GL32.glFramebufferTexture2D(GL32.GL_FRAMEBUFFER, GL32.GL_DEPTH_ATTACHMENT, GL32.GL_TEXTURE_2D, this.frameBufferDepthTexture, 0);
+		}
+		
+		GL32.glBindVertexArray(GL32.glIsVertexArray(this.vao) ? this.vao : 0);
+		GL32.glBindBuffer(GL32.GL_ARRAY_BUFFER, GL32.glIsBuffer(this.vbo) ? this.vbo : 0);
+		GL32.glBindBuffer(GL32.GL_ELEMENT_ARRAY_BUFFER, GL32.glIsBuffer(this.ebo) ? this.ebo: 0);
+		GL32.glUseProgram(GL32.glIsProgram(this.program) ? this.program : 0);
+		
+		if (this.writeToDepthBuffer)
+		{
+			GLMC.enableDepthMask();
+		}
+		else
+		{
+			GLMC.disableDepthMask();
+		}
+		
+		GLMC.glBlendFunc(this.blendSrcColor, this.blendDstColor);
+		GL32.glBlendEquationSeparate(this.blendEqRGB, this.blendEqAlpha);
+		GLMC.glBlendFuncSeparate(this.blendSrcColor, this.blendDstColor, this.blendSrcAlpha, this.blendDstAlpha);
+		
+		if (this.depth)
+		{
+			GLMC.enableDepthTest();
+		}
+		else
+		{
+			GLMC.disableDepthTest();
+		}
+		GLMC.glDepthFunc(this.depthFunc);
+		
+		if (this.stencil)
+		{
+			GL32.glEnable(GL32.GL_STENCIL_TEST);
+		}
+		else
+		{
+			GL32.glDisable(GL32.GL_STENCIL_TEST);
+		}
+		GL32.glStencilFunc(this.stencilFunc, this.stencilRef, this.stencilMask);
+		
+		GL32.glViewport(this.view[0], this.view[1], this.view[2], this.view[3]);
+		if (this.cull)
+		{
+			GLMC.enableFaceCulling();
+		}
+		else
+		{
+			GLMC.disableFaceCulling();
+		}
+		GL32.glCullFace(this.cullMode);
+		GL32.glPolygonMode(GL32.GL_FRONT_AND_BACK, this.polyMode);
+	}
+	
+	@Override
+	public String toString()
+	{
+		return "GLState{" +
+			"program=" + this.program + ", vao=" + this.vao + ", vbo=" + this.vbo + ", ebo=" + this.ebo + ", fbo=" + this.fbo +
+			", text=" + GLEnums.getString(this.texture2D) + "@" + this.activeTextureNumber + ", text0=" + GLEnums.getString(this.texture0) +
+			", FB text0=" + this.frameBufferTexture0 +
+			", FB text1=" + this.frameBufferTexture1 +
+			", FB depth=" + this.frameBufferDepthTexture +
+			", blend=" + this.blend + ", scissor=" + this.scissor + ", blendMode=" + GLEnums.getString(this.blendSrcColor) + "," + GLEnums.getString(this.blendDstColor) +
+			", depth=" + this.depth +
+			", depthFunc=" + GLEnums.getString(this.depthFunc) + ", stencil=" + this.stencil +
+			", stencilFunc=" + GLEnums.getString(this.stencilFunc) + ", stencilRef=" + this.stencilRef + ", stencilMask=" + this.stencilMask +
+			", view={x:" + this.view[0] + ", y:" + this.view[1] +
+			", w:" + this.view[2] + ", h:" + this.view[3] + "}" + ", cull=" + this.cull +
+			", cullMode=" + GLEnums.getString(this.cullMode) + ", polyMode=" + GLEnums.getString(this.polyMode) +
+			'}';
+	}
+	
+	
+	
+}

common/src/main/java/com/seibel/distanthorizons/common/render/openGl/glObject/GlDhFramebuffer.java

@@ -0,0 +1,94 @@
+package com.seibel.distanthorizons.common.render.openGl.glObject;
+
+import com.seibel.distanthorizons.api.interfaces.override.rendering.IDhApiFramebuffer;
+import com.seibel.distanthorizons.common.wrappers.minecraft.MinecraftGLWrapper;
+import org.lwjgl.opengl.GL32;
+
+public class GlDhFramebuffer implements IDhApiFramebuffer
+{
+	private static final MinecraftGLWrapper GLMC = MinecraftGLWrapper.INSTANCE;
+	
+	private int id;
+	
+	
+	
+	//=============//
+	// constructor //
+	//=============//
+	//region
+	
+	public GlDhFramebuffer() { this.id = GL32.glGenFramebuffers(); }
+
+	/** For internal use by Iris, do not remove. */
+	public GlDhFramebuffer(int id) { this.id = id; }
+	
+	//endregion
+	
+	
+	
+	//=========//
+	// methods //
+	//=========//
+	//region
+	
+	@Override
+	public void addDepthAttachment(int textureId, boolean isCombinedStencil) 
+	{
+		this.bind();
+		
+		int depthAttachment = isCombinedStencil ? GL32.GL_DEPTH_STENCIL_ATTACHMENT : GL32.GL_DEPTH_ATTACHMENT;
+		GL32.glFramebufferTexture2D(GL32.GL_FRAMEBUFFER, depthAttachment, GL32.GL_TEXTURE_2D, textureId, 0);
+	}
+	
+	@Override
+	public void addColorAttachment(int textureIndex, int textureId)
+	{
+		this.bind();
+		
+		GL32.glFramebufferTexture2D(GL32.GL_FRAMEBUFFER, GL32.GL_COLOR_ATTACHMENT0 + textureIndex, GL32.GL_TEXTURE_2D, textureId, 0);
+	}
+
+	@Override
+	public void bind()
+	{
+		if (this.id == -1)
+		{
+			throw new IllegalStateException("Framebuffer does not exist!");
+		} 
+		GLMC.glBindFramebuffer(GL32.GL_FRAMEBUFFER, this.id);
+	}
+	
+	@Override
+	public void destroy()
+	{
+		GL32.glDeleteFramebuffers(this.id); 
+		this.id = -1;
+	}
+	
+	@Override
+	public int getStatus()
+	{
+		this.bind(); 
+		int status = GL32.glCheckFramebufferStatus(GL32.GL_FRAMEBUFFER);
+		return status;
+	}
+	
+	@Override
+	public int getId() { return this.id; }
+	
+	//endregion
+	
+	
+	
+	//=============//
+	// API methods //
+	//=============//
+	//region
+	
+	public boolean overrideThisFrame() { return true; }
+	
+	//endregion
+	
+	
+	
+}

common/src/main/java/com/seibel/distanthorizons/common/render/openGl/glObject/GlDummyUniformData.java

@@ -0,0 +1,17 @@
+package com.seibel.distanthorizons.common.render.openGl.glObject;
+
+import com.seibel.distanthorizons.core.dataObjects.render.bufferBuilding.LodBufferContainer;
+import com.seibel.distanthorizons.core.wrapperInterfaces.render.objects.ILodContainerUniformBufferWrapper;
+
+/**
+ * With OpenGL all uniform data is uploaded during the rendering phase
+ * so nothing is needed here.
+ */
+public class GlDummyUniformData implements ILodContainerUniformBufferWrapper
+{
+	@Override public void createUniformData(LodBufferContainer bufferContainer) { }
+	@Override public void tryUpload() { }
+	@Override public void upload() { }
+	@Override public void close() { }
+	
+}

common/src/main/java/com/seibel/distanthorizons/common/render/openGl/glObject/buffer/GLBuffer.java

@@ -0,0 +1,367 @@
+/*
+ *    This file is part of the Distant Horizons mod
+ *    licensed under the GNU LGPL 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 Lesser 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 Lesser General Public License for more details.
+ *
+ *    You should have received a copy of the GNU Lesser General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.seibel.distanthorizons.common.render.openGl.glObject.buffer;
+
+import com.seibel.distanthorizons.api.enums.config.EDhApiGpuUploadMethod;
+import com.seibel.distanthorizons.common.render.openGl.glObject.GLProxy;
+import com.seibel.distanthorizons.common.wrappers.minecraft.MinecraftGLWrapper;
+import com.seibel.distanthorizons.core.config.Config;
+import com.seibel.distanthorizons.core.logging.DhLogger;
+import com.seibel.distanthorizons.core.logging.DhLoggerBuilder;
+import com.seibel.distanthorizons.core.render.RenderThreadTaskHandler;
+import com.seibel.distanthorizons.core.util.LodUtil;
+import com.seibel.distanthorizons.core.util.ThreadUtil;
+import org.lwjgl.opengl.GL32;
+import org.lwjgl.opengl.GL44;
+
+import java.lang.ref.PhantomReference;
+import java.lang.ref.Reference;
+import java.lang.ref.ReferenceQueue;
+import java.nio.ByteBuffer;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.ThreadPoolExecutor;
+import java.util.concurrent.atomic.AtomicInteger;
+
+public class GLBuffer implements AutoCloseable
+{
+	private static final DhLogger LOGGER = new DhLoggerBuilder()
+			.fileLevelConfig(Config.Common.Logging.logRendererGLEventToFile)
+			.chatLevelConfig(Config.Common.Logging.logRendererGLEventToChat)
+			.build();
+	
+	private static final MinecraftGLWrapper GLMC = MinecraftGLWrapper.INSTANCE;
+	
+	
+	public static final double BUFFER_EXPANSION_MULTIPLIER = 1.3;
+	public static final double BUFFER_SHRINK_TRIGGER = BUFFER_EXPANSION_MULTIPLIER * BUFFER_EXPANSION_MULTIPLIER;
+	/** the number of active buffers, can be used for debugging */
+	public static AtomicInteger bufferCount = new AtomicInteger(0);
+	
+	private static final int PHANTOM_REF_CHECK_TIME_IN_MS = 5 * 1000;
+	private static final ConcurrentHashMap<PhantomReference<? extends GLBuffer>, Integer> PHANTOM_TO_BUFFER_ID = new ConcurrentHashMap<>();
+	private static final ConcurrentHashMap<Integer, PhantomReference<? extends GLBuffer>> BUFFER_ID_TO_PHANTOM = new ConcurrentHashMap<>();
+	private static final ReferenceQueue<GLBuffer> PHANTOM_REFERENCE_QUEUE = new ReferenceQueue<>();
+	private static final ThreadPoolExecutor CLEANUP_THREAD = ThreadUtil.makeSingleDaemonThreadPool("GLBuffer Cleanup");
+	
+	
+	protected int id;
+	public final int getId() { return this.id; }
+	protected int size = 0;
+	public int getSize() { return this.size; }
+	protected boolean bufferStorage;
+	public final boolean isBufferStorage() { return this.bufferStorage; }
+	protected boolean isMapped = false;
+	
+	
+	
+	//==============//
+	// constructors //
+	//==============//
+	//region
+	
+	static { CLEANUP_THREAD.execute(() -> runPhantomReferenceCleanupLoop()); }
+	
+	public GLBuffer(boolean isBufferStorage) { this.create(isBufferStorage); }
+	
+	//endregion
+	
+	
+	
+	//=========//
+	// methods //
+	//=========//
+	//region
+	
+	// Should be override by subclasses
+	public int getBufferBindingTarget() { return GL32.GL_COPY_READ_BUFFER; }
+	
+	public void bind() { GL32.glBindBuffer(this.getBufferBindingTarget(), this.id); }
+	public void unbind() { GL32.glBindBuffer(this.getBufferBindingTarget(), 0); }
+	
+	//endregion
+	
+	
+	
+	//====================//
+	// create and destroy //
+	//====================//
+	//region
+	
+	protected void create(boolean asBufferStorage)
+	{
+		if (!GLProxy.runningOnRenderThread())
+		{
+			LodUtil.assertNotReach("Thread ["+Thread.currentThread()+"] tried to create a GLBuffer outside the MC render thread.");
+		}
+		
+		// destroy the old buffer if one is present
+		// (as of 2024-12-31 James didn't see this happen, but just in case)
+		if (this.id != 0)
+		{
+			destroyBufferIdAsync(this.id);
+		}
+		
+		this.id = GLMC.glGenBuffers();
+		this.bufferStorage = asBufferStorage;
+		bufferCount.getAndIncrement();
+		
+		PhantomReference<GLBuffer> phantom = new PhantomReference<>(this, PHANTOM_REFERENCE_QUEUE);
+		PHANTOM_TO_BUFFER_ID.put(phantom, this.id);
+		BUFFER_ID_TO_PHANTOM.put(this.id, phantom);
+		
+	}
+	
+	protected void destroyAsync()
+	{
+		if (this.id == 0)
+		{
+			// the buffer has already been closed
+			return;
+		}
+		
+		destroyBufferIdAsync(this.id);
+		
+		this.id = 0;
+		this.size = 0;
+	}
+	private static void destroyBufferIdAsync(int id)
+	{
+		// remove and clear the phantom reference if present
+		if (BUFFER_ID_TO_PHANTOM.containsKey(id))
+		{
+			Reference<? extends GLBuffer> phantom = BUFFER_ID_TO_PHANTOM.get(id);
+			
+			// if we are manually closing this buffer, we don't want the phantom reference to accidentally close it again
+			// this can cause a race condition were we accidentally delete an in-use buffer and cause NVIDIA
+			// to throw an EXCEPTION_ACCESS_VIOLATION when we attempt to render it
+			phantom.clear();
+			
+			PHANTOM_TO_BUFFER_ID.remove(phantom);
+			BUFFER_ID_TO_PHANTOM.remove(id);
+		}
+		
+		RenderThreadTaskHandler.INSTANCE.queueRunningOnRenderThread(() -> 
+		{
+			// destroy the buffer if it exists,
+			// the buffer may not exist if the destroy method is called twice
+			if (GL32.glIsBuffer(id))
+			{
+				GLMC.glDeleteBuffers(id);
+				bufferCount.decrementAndGet();
+				
+				if (Config.Client.Advanced.Debugging.logBufferGarbageCollection.get())
+				{
+					LOGGER.info("destroyed buffer [" + id + "], remaining: [" + BUFFER_ID_TO_PHANTOM.size() + "]");
+				}
+			}
+		});
+	}
+	
+	//endregion
+	
+	
+	
+	//==================//
+	// buffer uploading //
+	//==================//
+	//region
+	
+	/** 
+	 * Assumes the GL Context is already bound. <br> 
+	 * Will create the VBO if one exist.
+	 */
+	public void uploadBuffer(ByteBuffer bb, EDhApiGpuUploadMethod uploadMethod, int maxExpansionSize, int bufferHint)
+	{
+		LodUtil.assertTrue(!uploadMethod.useEarlyMapping, "UploadMethod signal that this should use Mapping instead of uploadBuffer!");
+		int bbSize = bb.limit() - bb.position();
+		if (bbSize > maxExpansionSize) 
+		{ 
+			LodUtil.assertNotReach("maxExpansionSize is [" + maxExpansionSize + "] but buffer size is [" + bbSize + "]!"); 
+		}
+		
+		// Don't upload an empty buffer
+		if (bbSize == 0)
+		{
+			return;
+		}
+		
+		// make sure the buffer is ready for uploading
+		this.createOrChangeBufferTypeForUpload(uploadMethod);
+		
+		switch (uploadMethod)
+		{
+			//case NONE:
+			//	return;
+			case AUTO:
+				LodUtil.assertNotReach("GpuUploadMethod AUTO must be resolved before call to uploadBuffer()!");
+			case BUFFER_STORAGE:
+				this.uploadBufferStorage(bb, bufferHint);
+				break;
+			case DATA:
+				this.uploadBufferData(bb, bufferHint);
+				break;
+			case SUB_DATA:
+				this.uploadSubData(bb, maxExpansionSize, bufferHint);
+				break;
+			default:
+				LodUtil.assertNotReach("Unknown GpuUploadMethod!");
+		}
+	}
+	/** Requires the buffer to be bound */
+	protected void uploadBufferStorage(ByteBuffer bb, int bufferStorageHint)
+	{
+		LodUtil.assertTrue(this.bufferStorage, "Buffer is not bufferStorage but its trying to use bufferStorage upload method!");
+		
+		int bbSize = bb.limit() - bb.position();
+		this.destroyAsync();
+		this.create(true);
+		this.bind();
+		GL44.glBufferStorage(this.getBufferBindingTarget(), bb, 0);
+		this.size = bbSize;
+	}
+	/** Requires the buffer to be bound */
+	protected void uploadBufferData(ByteBuffer bb, int bufferDataHint)
+	{
+		LodUtil.assertTrue(!this.bufferStorage, "Buffer is bufferStorage but its trying to use bufferData upload method!");
+		
+		int bbSize = bb.limit() - bb.position();
+		GL32.glBufferData(this.getBufferBindingTarget(), bb, bufferDataHint);
+		this.size = bbSize;
+	}
+	/** Requires the buffer to be bound */
+	protected void uploadSubData(ByteBuffer bb, int maxExpansionSize, int bufferDataHint)
+	{
+		LodUtil.assertTrue(!this.bufferStorage, "Buffer is bufferStorage but its trying to use subData upload method!");
+		
+		int bbSize = bb.limit() - bb.position();
+		if (this.size < bbSize || this.size > bbSize * BUFFER_SHRINK_TRIGGER)
+		{
+			int newSize = (int) (bbSize * BUFFER_EXPANSION_MULTIPLIER);
+			if (newSize > maxExpansionSize) newSize = maxExpansionSize;
+			GL32.glBufferData(this.getBufferBindingTarget(), newSize, bufferDataHint);
+			this.size = newSize;
+		}
+		GL32.glBufferSubData(this.getBufferBindingTarget(), 0, bb);
+	}
+	
+	//endregion
+	
+	
+	
+	//================//
+	// base overrides //
+	//================//
+	//region
+	
+	@Override
+	public void close() { this.destroyAsync(); }
+	
+	@Override
+	public String toString()
+	{
+		return (this.bufferStorage ? "" : "Static-") + this.getClass().getSimpleName() +
+				"[id:" + this.id + ",size:" + this.size + (this.isMapped ? ",MAPPED" : "") + "]";
+	}
+	
+	//endregion
+	
+	
+	
+	//================//
+	// helper methods //
+	//================//
+	//region
+	
+	/** 
+	 * Makes sure the buffer exists and is of the correct format
+	 * before uploading.
+	 */
+	private void createOrChangeBufferTypeForUpload(EDhApiGpuUploadMethod uploadMethod)
+	{
+		// create/change the buffer type if necessary
+		if (uploadMethod.useBufferStorage != this.bufferStorage)
+		{
+			// recreate if the buffer storage type changed
+			this.bind();
+			this.destroyAsync();
+			this.create(uploadMethod.useBufferStorage);
+			this.bind();
+		}
+		else
+		{
+			// Prevent uploading to the null buffer (ID 0).
+			// This can happen if the buffer was deleted previously.
+			if (this.id == 0)
+			{
+				this.create(this.bufferStorage);
+			}
+			
+			this.bind();
+		}
+	}
+	
+	//endregion
+	
+	
+	
+	//================//
+	// static cleanup //
+	//================//
+	//region
+	
+	private static void runPhantomReferenceCleanupLoop()
+	{
+		while (true)
+		{
+			try
+			{
+				try
+				{
+					Thread.sleep(PHANTOM_REF_CHECK_TIME_IN_MS);
+				}
+				catch (InterruptedException ignore) { }
+				
+				
+				Reference<? extends GLBuffer> phantomRef = PHANTOM_REFERENCE_QUEUE.poll();
+				while (phantomRef != null)
+				{
+					// destroy the buffer if it hasn't been cleared yet
+					if (PHANTOM_TO_BUFFER_ID.containsKey(phantomRef))
+					{
+						int id = PHANTOM_TO_BUFFER_ID.get(phantomRef);
+						destroyBufferIdAsync(id);
+						//LOGGER.warn("Buffer Phantom collected, ID: ["+id+"]");
+					}
+					
+					phantomRef = PHANTOM_REFERENCE_QUEUE.poll();
+				}
+			}
+			catch (Exception e)
+			{
+				LOGGER.error("Unexpected error in buffer cleanup thread: [" + e.getMessage() + "].", e);
+			}
+		}
+	}
+	
+	//endregion
+	
+	
+	
+}

common/src/main/java/com/seibel/distanthorizons/common/render/openGl/glObject/buffer/GLElementBuffer.java

@@ -0,0 +1,60 @@
+/*
+ *    This file is part of the Distant Horizons mod
+ *    licensed under the GNU LGPL 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 Lesser 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 Lesser General Public License for more details.
+ *
+ *    You should have received a copy of the GNU Lesser General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.seibel.distanthorizons.common.render.openGl.glObject.buffer;
+
+import org.lwjgl.opengl.GL32;
+
+/**
+ * This is a container for a OpenGL
+ * VBO (Vertex Buffer Object).
+ *
+ * @author James Seibel
+ * @version 11-20-2021
+ */
+public class GLElementBuffer extends GLBuffer
+{
+	/**
+	 * When uploading to a buffer that is too small, recreate it this many times
+	 * bigger than the upload payload
+	 */
+	protected int indicesCount = 0;
+	public int getIndicesCount() { return this.indicesCount; }
+	protected int type = GL32.GL_UNSIGNED_INT;
+	public int getType() { return type; }
+	
+	public GLElementBuffer(boolean isBufferStorage)
+	{
+		super(isBufferStorage);
+	}
+	
+	@Override
+	public void destroyAsync()
+	{
+		super.destroyAsync();
+		this.indicesCount = 0;
+	}
+	
+	@Override
+	public int getBufferBindingTarget()
+	{
+		return GL32.GL_ELEMENT_ARRAY_BUFFER;
+	}
+	
+}

common/src/main/java/com/seibel/distanthorizons/common/render/openGl/glObject/buffer/GLVertexBuffer.java

@@ -0,0 +1,112 @@
+/*
+ *    This file is part of the Distant Horizons mod
+ *    licensed under the GNU LGPL 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 Lesser 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 Lesser General Public License for more details.
+ *
+ *    You should have received a copy of the GNU Lesser General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.seibel.distanthorizons.common.render.openGl.glObject.buffer;
+
+import java.nio.ByteBuffer;
+
+import com.seibel.distanthorizons.common.render.openGl.glObject.GLProxy;
+import com.seibel.distanthorizons.core.dataObjects.render.bufferBuilding.LodQuadBuilder;
+import com.seibel.distanthorizons.core.wrapperInterfaces.render.objects.IVertexBufferWrapper;
+import org.lwjgl.opengl.GL32;
+
+import com.seibel.distanthorizons.api.enums.config.EDhApiGpuUploadMethod;
+
+/**
+ * This is a container for a OpenGL
+ * VBO (Vertex Buffer Object).
+ *
+ * @author James Seibel
+ * @version 11-20-2021
+ */
+public class GLVertexBuffer extends GLBuffer implements IVertexBufferWrapper
+{
+	/**
+	 * When uploading to a buffer that is too small, recreate it this many times
+	 * bigger than the upload payload
+	 */
+	protected int vertexCount = 0;
+	public int getVertexCount() { return this.vertexCount; }
+	
+	
+	
+	//=============//
+	// constructor //
+	//=============//
+	//region
+	
+	public GLVertexBuffer() { this(GLProxy.getInstance().getGpuUploadMethod() == EDhApiGpuUploadMethod.BUFFER_STORAGE); }
+	public GLVertexBuffer(boolean isBufferStorage) { super(isBufferStorage); }
+	
+	//endregion
+	
+	
+	
+	//======================//
+	// uploading/destroying //
+	//======================//
+	//region
+	
+	@Override
+	public int getBufferBindingTarget() { return GL32.GL_ARRAY_BUFFER; }
+	
+	@Override
+	public void upload(ByteBuffer buffer, int vertexCount)
+	{
+		EDhApiGpuUploadMethod uploadMethod = GLProxy.getInstance().getGpuUploadMethod();
+		int maxBufferSize = LodQuadBuilder.getMaxBufferByteSize();
+		this.uploadBuffer(buffer, vertexCount, uploadMethod, maxBufferSize);
+	}
+	
+	/**
+	 * bufferSize is the number of shared verticies. <br>
+	 * This number will be higher when actually rendered since each box's face needs 2 triangles 
+	 * with 2 shared verticies. 
+	 */
+	public void uploadBuffer(ByteBuffer byteBuffer, int vertexCount, EDhApiGpuUploadMethod uploadMethod, int maxExpansionSize)
+	{
+		if (vertexCount < 0)
+		{
+			throw new IllegalArgumentException("vertexCount is negative!");
+		}
+		
+		// If size is zero, just ignore it.
+		if (byteBuffer.limit() - byteBuffer.position() != 0)
+		{
+			boolean useBuffStorage = uploadMethod.useBufferStorage;
+			super.uploadBuffer(byteBuffer, uploadMethod, maxExpansionSize, useBuffStorage ? 0 : GL32.GL_STATIC_DRAW);
+		}
+		this.vertexCount = vertexCount;
+	}
+	
+	
+	@Override
+	public void close() { this.destroyAsync(); }
+	@Override
+	public void destroyAsync()
+	{
+		super.destroyAsync();
+		this.vertexCount = 0;
+	}
+	
+	//endregion
+	
+	
+	
+}

common/src/main/java/com/seibel/distanthorizons/common/render/openGl/glObject/buffer/GlQuadElementBuffer.java

@@ -0,0 +1,192 @@
+/*
+ *    This file is part of the Distant Horizons mod
+ *    licensed under the GNU LGPL 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 Lesser 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 Lesser General Public License for more details.
+ *
+ *    You should have received a copy of the GNU Lesser General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.seibel.distanthorizons.common.render.openGl.glObject.buffer;
+
+import com.seibel.distanthorizons.api.enums.config.EDhApiGpuUploadMethod;
+import com.seibel.distanthorizons.common.render.openGl.glObject.enums.GLEnums;
+import com.seibel.distanthorizons.core.logging.DhLogger;
+import com.seibel.distanthorizons.core.logging.DhLoggerBuilder;
+import org.lwjgl.opengl.GL32;
+import org.lwjgl.system.MemoryUtil;
+
+import java.nio.ByteBuffer;
+
+/** AKA Index Buffer TODO RENAME */
+public class GlQuadElementBuffer extends GLElementBuffer
+{
+	private static final DhLogger LOGGER = new DhLoggerBuilder().build();
+	
+	
+	
+	//=============//
+	// constructor //
+	//=============//
+	//region
+	
+	public GlQuadElementBuffer() { super(false); }
+	
+	public void reserve(int quadCount)
+	{
+		if (quadCount < 0)
+		{
+			throw new IllegalArgumentException("quadCount must be greater than 0");
+		}
+		if (quadCount == 0)
+		{
+			// shouldn't happen, but just in case
+			return;
+		}
+		
+		this.indicesCount = quadCount * 6; // 2 triangles per quad
+		if (this.indicesCount >= this.getCapacity()
+			&& this.indicesCount < this.getCapacity() * BUFFER_SHRINK_TRIGGER)
+		{
+			return;
+		}
+		int vertexCount = quadCount * 4; // 4 vertices per quad
+		
+		if (vertexCount < 255)
+		{
+			// Reserve 1 for the reset index
+			this.type = GL32.GL_UNSIGNED_BYTE;
+		}
+		else if (vertexCount < 65535)
+		{
+			// Reserve 1 for the reset index
+			this.type = GL32.GL_UNSIGNED_SHORT;
+		}
+		else
+		{
+			this.type = GL32.GL_UNSIGNED_INT;
+		}
+		
+		ByteBuffer buffer = MemoryUtil.memAlloc(this.indicesCount * GLEnums.getTypeSize(this.type));
+		buildBuffer(quadCount, buffer, this.type);
+		this.bind();
+		super.uploadBuffer(buffer, EDhApiGpuUploadMethod.DATA,
+			this.indicesCount * GLEnums.getTypeSize(this.type), GL32.GL_STATIC_DRAW);
+		
+		MemoryUtil.memFree(buffer);
+	}
+	
+	//endregion
+	
+	
+	
+	//=========//
+	// getters //
+	//=========//
+	//region
+	
+	public int getCapacity() { return super.getSize() / GLEnums.getTypeSize(this.getType()); }
+	
+	//endregion
+	
+	
+	
+	//==========//
+	// building //
+	//==========//
+	//region
+	
+	public static void buildBuffer(int quadCount, ByteBuffer buffer, int type)
+	{
+		switch (type)
+		{
+			case GL32.GL_UNSIGNED_BYTE:
+				buildBufferByte(quadCount, buffer);
+				break;
+			case GL32.GL_UNSIGNED_SHORT:
+				buildBufferShort(quadCount, buffer);
+				break;
+			case GL32.GL_UNSIGNED_INT:
+				buildBufferInt(quadCount, buffer);
+				break;
+			default:
+				throw new IllegalStateException("Unknown buffer type: [" + type + "].");
+		}
+	}
+	
+	private static void buildBufferByte(int quadCount, ByteBuffer buffer)
+	{
+		for (int i = 0; i < quadCount; i++)
+		{
+			int vIndex = i * 4;
+			// First triangle
+			buffer.put((byte) (vIndex));
+			buffer.put((byte) (vIndex + 1));
+			buffer.put((byte) (vIndex + 2));
+			// Second triangle
+			buffer.put((byte) (vIndex + 2));
+			buffer.put((byte) (vIndex + 3));
+			buffer.put((byte) (vIndex));
+		}
+		if (buffer.hasRemaining())
+		{
+			throw new IllegalStateException("QuadElementBuffer is not full somehow after building");
+		}
+		buffer.rewind();
+	}
+	private static void buildBufferShort(int quadCount, ByteBuffer buffer)
+	{
+		for (int i = 0; i < quadCount; i++)
+		{
+			int vIndex = i * 4;
+			// First triangle
+			buffer.putShort((short) (vIndex));
+			buffer.putShort((short) (vIndex + 1));
+			buffer.putShort((short) (vIndex + 2));
+			// Second triangle
+			buffer.putShort((short) (vIndex + 2));
+			buffer.putShort((short) (vIndex + 3));
+			buffer.putShort((short) (vIndex));
+		}
+		if (buffer.hasRemaining())
+		{
+			throw new IllegalStateException("QuadElementBuffer is not full somehow after building");
+		}
+		buffer.rewind();
+	}
+	private static void buildBufferInt(int quadCount, ByteBuffer buffer)
+	{
+		for (int i = 0; i < quadCount; i++)
+		{
+			int vIndex = i * 4;
+			// First triangle
+			buffer.putInt(vIndex);
+			buffer.putInt(vIndex + 1);
+			buffer.putInt(vIndex + 2);
+			// Second triangle
+			buffer.putInt(vIndex + 2);
+			buffer.putInt(vIndex + 3);
+			buffer.putInt(vIndex);
+		}
+		if (buffer.hasRemaining())
+		{
+			throw new IllegalStateException("QuadElementBuffer is not full somehow after building");
+		}
+		buffer.rewind();
+	}
+	
+	//endregion
+	
+	
+	
+}

common/src/main/java/com/seibel/distanthorizons/common/render/openGl/glObject/enums/EGlVersion.java

@@ -0,0 +1,9 @@
+package com.seibel.distanthorizons.common.render.openGl.glObject.enums;
+
+public enum EGlVersion 
+{
+	GL_11,
+	GL_12,
+	GL_30,
+	GL_31
+}

common/src/main/java/com/seibel/distanthorizons/common/render/openGl/glObject/enums/GLEnums.java

@@ -0,0 +1,261 @@
+/*
+ *    This file is part of the Distant Horizons mod
+ *    licensed under the GNU LGPL 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 Lesser 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 Lesser General Public License for more details.
+ *
+ *    You should have received a copy of the GNU Lesser General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.seibel.distanthorizons.common.render.openGl.glObject.enums;
+
+import static org.lwjgl.opengl.GL46.*;
+
+// Turns GL int enums back to readable strings
+public class GLEnums
+{
+	
+	public static String getString(int glEnum)
+	{
+		// blend stuff
+		switch (glEnum)
+		{
+			case GL_ZERO:
+				return "GL_ZERO";
+			case GL_ONE:
+				return "GL_ONE";
+			case GL_SRC_COLOR:
+				return "GL_SRC_COLOR";
+			case GL_ONE_MINUS_SRC_COLOR:
+				return "GL_ONE_MINUS_SRC_COLOR";
+			case GL_DST_COLOR:
+				return "GL_DST_COLOR";
+			case GL_ONE_MINUS_DST_COLOR:
+				return "GL_ONE_MINUS_DST_COLOR";
+			case GL_SRC_ALPHA:
+				return "GL_SRC_ALPHA";
+			case GL_ONE_MINUS_SRC_ALPHA:
+				return "GL_ONE_MINUS_SRC_ALPHA";
+			case GL_DST_ALPHA:
+				return "GL_DST_ALPHA";
+			case GL_ONE_MINUS_DST_ALPHA:
+				return "GL_ONE_MINUS_DST_ALPHA";
+			case GL_CONSTANT_COLOR:
+				return "GL_CONSTANT_COLOR";
+			case GL_ONE_MINUS_CONSTANT_COLOR:
+				return "GL_ONE_MINUS_CONSTANT_COLOR";
+			case GL_CONSTANT_ALPHA:
+				return "GL_CONSTANT_ALPHA";
+			case GL_ONE_MINUS_CONSTANT_ALPHA:
+				return "GL_ONE_MINUS_CONSTANT_ALPHA";
+			default:
+		}
+		
+		// shader stuff
+		switch (glEnum)
+		{
+			case GL_VERTEX_SHADER:
+				return "GL_VERTEX_SHADER";
+			case GL_GEOMETRY_SHADER:
+				return "GL_GEOMETRY_SHADER";
+			case GL_FRAGMENT_SHADER:
+				return "GL_FRAGMENT_SHADER";
+			default:
+		}
+		
+		// stencil stuff
+		switch (glEnum)
+		{
+			case GL_KEEP:
+				return "GL_KEEP";
+			case GL_ZERO:
+				return "GL_ZERO";
+			case GL_REPLACE:
+				return "GL_REPLACE";
+			case GL_INCR:
+				return "GL_INCR";
+			case GL_DECR:
+				return "GL_DECR";
+			case GL_INVERT:
+				return "GL_INVERT";
+			case GL_INCR_WRAP:
+				return "GL_INCR_WRAP";
+			case GL_DECR_WRAP:
+				return "GL_DECR_WRAP";
+			default:
+		}
+		
+		// depth stuff
+		switch (glEnum)
+		{
+			case GL_NEVER:
+				return "GL_NEVER";
+			case GL_LESS:
+				return "GL_LESS";
+			case GL_EQUAL:
+				return "GL_EQUAL";
+			case GL_LEQUAL:
+				return "GL_LEQUAL";
+			case GL_GREATER:
+				return "GL_GREATER";
+			case GL_NOTEQUAL:
+				return "GL_NOTEQUAL";
+			case GL_GEQUAL:
+				return "GL_GEQUAL";
+			case GL_ALWAYS:
+				return "GL_ALWAYS";
+			default:
+		}
+		
+		// Texture binding points
+		switch (glEnum)
+		{
+			case GL_TEXTURE0:
+				return "GL_TEXTURE0";
+			case GL_TEXTURE1:
+				return "GL_TEXTURE1";
+			case GL_TEXTURE2:
+				return "GL_TEXTURE2";
+			case GL_TEXTURE3:
+				return "GL_TEXTURE3";
+			case GL_TEXTURE4:
+				return "GL_TEXTURE4";
+			case GL_TEXTURE5:
+				return "GL_TEXTURE5";
+			case GL_TEXTURE6:
+				return "GL_TEXTURE6";
+			case GL_TEXTURE7:
+				return "GL_TEXTURE7";
+			case GL_TEXTURE8:
+				return "GL_TEXTURE8";
+			case GL_TEXTURE9:
+				return "GL_TEXTURE9";
+			case GL_TEXTURE10:
+				return "GL_TEXTURE10";
+			case GL_TEXTURE11:
+				return "GL_TEXTURE11";
+			case GL_TEXTURE12:
+				return "GL_TEXTURE12";
+			case GL_TEXTURE13:
+				return "GL_TEXTURE13";
+			case GL_TEXTURE14:
+				return "GL_TEXTURE14";
+			case GL_TEXTURE15:
+				return "GL_TEXTURE15";
+			case GL_TEXTURE16:
+				return "GL_TEXTURE16";
+			case GL_TEXTURE17:
+				return "GL_TEXTURE17";
+			case GL_TEXTURE18:
+				return "GL_TEXTURE18";
+			case GL_TEXTURE19:
+				return "GL_TEXTURE19";
+			case GL_TEXTURE20:
+				return "GL_TEXTURE20";
+			case GL_TEXTURE21:
+				return "GL_TEXTURE21";
+			case GL_TEXTURE22:
+				return "GL_TEXTURE22";
+			case GL_TEXTURE23:
+				return "GL_TEXTURE23";
+			case GL_TEXTURE24:
+				return "GL_TEXTURE24";
+			case GL_TEXTURE25:
+				return "GL_TEXTURE25";
+			case GL_TEXTURE26:
+				return "GL_TEXTURE26";
+			case GL_TEXTURE27:
+				return "GL_TEXTURE27";
+			case GL_TEXTURE28:
+				return "GL_TEXTURE28";
+			case GL_TEXTURE29:
+				return "GL_TEXTURE29";
+			case GL_TEXTURE30:
+				return "GL_TEXTURE30";
+			case GL_TEXTURE31:
+				return "GL_TEXTURE31";
+			default:
+		}
+		
+		// Polygon modes
+		switch (glEnum)
+		{
+			case GL_POINT:
+				return "GL_POINT";
+			case GL_LINE:
+				return "GL_LINE";
+			case GL_FILL:
+				return "GL_FILL";
+			default:
+		}
+		
+		// Culling modes
+		switch (glEnum)
+		{
+			case GL_FRONT:
+				return "GL_FRONT";
+			case GL_BACK:
+				return "GL_BACK";
+			case GL_FRONT_AND_BACK:
+				return "GL_FRONT_AND_BACK";
+			default:
+		}
+		
+		// Types
+		switch (glEnum)
+		{
+			case GL_BYTE:
+				return "GL_BYTE";
+			case GL_UNSIGNED_BYTE:
+				return "GL_UNSIGNED_BYTE";
+			case GL_SHORT:
+				return "GL_SHORT";
+			case GL_UNSIGNED_SHORT:
+				return "GL_UNSIGNED_SHORT";
+			case GL_INT:
+				return "GL_INT";
+			case GL_UNSIGNED_INT:
+				return "GL_UNSIGNED_INT";
+			case GL_FLOAT:
+				return "GL_FLOAT";
+			case GL_DOUBLE:
+				return "GL_DOUBLE";
+			default:
+		}
+		
+		return "GL_UNKNOWN(" + glEnum + ")";
+	}
+	
+	public static int getTypeSize(int glTypeEnum)
+	{
+		switch (glTypeEnum)
+		{
+			case GL_BYTE:
+			case GL_UNSIGNED_BYTE:
+				return 1;
+			case GL_SHORT:
+			case GL_UNSIGNED_SHORT:
+				return 2;
+			case GL_INT:
+			case GL_UNSIGNED_INT:
+				return 4;
+			case GL_FLOAT:
+				return 4;
+			case GL_DOUBLE:
+				return 8;
+			default:
+				throw new IllegalArgumentException("Unknown type enum: " + getString(glTypeEnum));
+		}
+	}
+	
+}

common/src/main/java/com/seibel/distanthorizons/common/render/openGl/glObject/shader/GlShader.java

@@ -0,0 +1,184 @@
+/*
+ *    This file is part of the Distant Horizons mod
+ *    licensed under the GNU LGPL 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 Lesser 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 Lesser General Public License for more details.
+ *
+ *    You should have received a copy of the GNU Lesser General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.seibel.distanthorizons.common.render.openGl.glObject.shader;
+
+import java.io.BufferedReader;
+import java.io.FileInputStream;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.nio.ByteBuffer;
+
+import com.seibel.distanthorizons.core.config.Config;
+import com.seibel.distanthorizons.core.logging.DhLogger;
+import com.seibel.distanthorizons.core.logging.DhLoggerBuilder;
+import org.lwjgl.PointerBuffer;
+import org.lwjgl.opengl.GL32;
+import org.lwjgl.opengl.GL32C;
+import org.lwjgl.system.MemoryStack;
+import org.lwjgl.system.MemoryUtil;
+import org.lwjgl.system.NativeType;
+
+/**
+ * This object holds a OpenGL reference to a shader
+ * and allows for reading in and compiling a shader file.
+ */
+public class GlShader
+{
+	private static final DhLogger LOGGER = new DhLoggerBuilder()
+			.fileLevelConfig(Config.Common.Logging.logRendererGLEventToFile)
+			.chatLevelConfig(Config.Common.Logging.logRendererGLEventToChat)
+			.build();
+	
+	
+	/** OpenGL shader ID */
+	public final int id;
+	
+	
+	
+	//==============//
+	// constructors //
+	//==============//
+	//region
+	
+	/**
+	 * Creates a shader with specified type.
+	 *
+	 * @param type Either GL_VERTEX_SHADER or GL_FRAGMENT_SHADER.
+	 * @param sourceString File path of the shader
+	 * @throws RuntimeException if the shader fails to compile
+	 */
+	public GlShader(int type, String sourceString)
+	{
+		LOGGER.info("Loading shader with type: ["+type+"]");
+		LOGGER.debug("Source: \n["+sourceString+"]");
+		if (sourceString == null || sourceString.isEmpty())
+		{
+			throw new IllegalArgumentException("No shader source given.");
+		}
+		
+		// Create an empty shader object
+		this.id = GL32.glCreateShader(type);
+		if (this.id == 0)
+		{
+			throw new IllegalArgumentException("Failed to create shader with type ["+type+"] and Source: \n["+sourceString+"].");
+		}
+		
+		safeShaderSource(this.id, sourceString);
+		GL32.glCompileShader(this.id);
+		// check if the shader compiled
+		int status = GL32.glGetShaderi(this.id, GL32.GL_COMPILE_STATUS);
+		if (status != GL32.GL_TRUE)
+		{
+			
+			String message = "Shader compiler error. Details: [" + GL32.glGetShaderInfoLog(this.id) + "]\n";
+			message += "Source: \n[" + sourceString + "]";
+			this.free(); // important!
+			throw new RuntimeException(message);
+		}
+		LOGGER.info("Shader loaded sucessfully.");
+	}
+	
+	//endregion
+	
+	
+	
+	//=========//
+	// helpers //
+	//=========//
+	//region
+	
+	/**
+	 * Identical in function to {@link GL32C#glShaderSource(int, CharSequence)} but
+	 * passes a null pointer for string length to force the driver to rely on the null
+	 * terminator for string length.  This is a workaround for an apparent flaw with some
+	 * AMD drivers that don't receive or interpret the length correctly, resulting in
+	 * an access violation when the driver tries to read past the string memory.
+	 *
+	 * <p>Hat tip to fewizz for the find and the fix.
+	 * 
+	 * <p>Source: https://github.com/vram-guild/canvas/commit/820bf754092ccaf8d0c169620c2ff575722d7d96
+	 */
+	private static void safeShaderSource(@NativeType("GLuint") int glId, @NativeType("GLchar const **") CharSequence source)
+	{
+		final MemoryStack stack = MemoryStack.stackGet();
+		final int stackPointer = stack.getPointer();
+
+		try
+		{
+			final ByteBuffer sourceBuffer = MemoryUtil.memUTF8(source, true);
+			final PointerBuffer pointers = stack.mallocPointer(1);
+			pointers.put(sourceBuffer);
+
+			GL32.nglShaderSource(glId, 1, pointers.address0(), 0);
+			org.lwjgl.system.APIUtil.apiArrayFree(pointers.address0(), 1);
+		}
+		finally
+		{
+			stack.setPointer(stackPointer);
+		}
+	}
+	
+	public void free() { GL32.glDeleteShader(this.id); }
+	
+	public static String loadFile(String path, boolean absoluteFilePath)
+	{
+		StringBuilder stringBuilder = new StringBuilder();
+		
+		try
+		{
+			// open the file
+			InputStream in;
+			if (absoluteFilePath)
+			{
+				// Throws FileNotFoundException
+				in = new FileInputStream(path); // Note: this should use OS path seperator
+			}
+			else
+			{
+				in = GlShader.class.getClassLoader().getResourceAsStream(path); // Note: path seperator should be '/'
+				if (in == null)
+				{
+					throw new FileNotFoundException("Shader file not found in resource: " + path);
+				}
+			}
+			BufferedReader reader = new BufferedReader(new InputStreamReader(in));
+			
+			// read in the file
+			String line;
+			while ((line = reader.readLine()) != null)
+			{
+				stringBuilder.append(line).append("\n");
+			}
+		}
+		catch (IOException e)
+		{
+			throw new RuntimeException("Unable to load shader from file [" + path + "]. Error: " + e.getMessage());
+		}
+		
+		return stringBuilder.toString();
+	}
+	
+	//endregion
+	
+	
+	
+}

common/src/main/java/com/seibel/distanthorizons/common/render/openGl/glObject/shader/GlShaderProgram.java

@@ -0,0 +1,225 @@
+/*
+ *    This file is part of the Distant Horizons mod
+ *    licensed under the GNU LGPL 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 Lesser 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 Lesser General Public License for more details.
+ *
+ *    You should have received a copy of the GNU Lesser General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.seibel.distanthorizons.common.render.openGl.glObject.shader;
+
+import java.awt.Color;
+import java.nio.FloatBuffer;
+
+import com.seibel.distanthorizons.api.objects.math.DhApiVec3i;
+import org.lwjgl.opengl.GL32;
+import org.lwjgl.system.MemoryStack;
+
+import com.seibel.distanthorizons.core.util.math.Mat4f;
+import com.seibel.distanthorizons.core.util.math.Vec3f;
+
+
+/**
+ * This object holds the reference to a OpenGL shader program
+ * and contains a few methods that can be used with OpenGL shader programs.
+ * The reason for many of these simple wrapper methods is as reminders of what
+ * can (and needs to be) done with a shader program.
+ */
+public class GlShaderProgram
+{
+	/** Stores the handle of the program. */
+	public final int id;
+	
+	
+	
+	//=============//
+	// constructor //
+	//=============//
+	//region
+	
+	public GlShaderProgram(String vertResourcePath, String fragResourcePath, String attribute) { this(vertResourcePath, fragResourcePath, new String[]{ attribute }); }
+	/**
+	 * @param vertResourcePath the relative path the vertex shader should be found 
+	 * @param fragResourcePath the relative path the fragment shader should be found 
+	 */
+	public GlShaderProgram(String vertResourcePath, String fragResourcePath, String[] attributes)
+	{
+		this.id = GL32.glCreateProgram();
+		
+		{
+			String shaderString = GlShader.loadFile(vertResourcePath, false);
+			GlShader vertShader = new GlShader(GL32.GL_VERTEX_SHADER, shaderString);
+			GL32.glAttachShader(this.id, vertShader.id);
+			vertShader.free();
+		}
+		
+		{
+			String shaderString = GlShader.loadFile(fragResourcePath, false);
+			GlShader fragShader = new GlShader(GL32.GL_FRAGMENT_SHADER, shaderString);
+			GL32.glAttachShader(this.id, fragShader.id);
+			fragShader.free();
+		}
+		
+		for (int i = 0; i < attributes.length; i++)
+		{
+			GL32.glBindAttribLocation(this.id, i, attributes[i]);
+		}
+		GL32.glLinkProgram(this.id);
+		
+		int status = GL32.glGetProgrami(this.id, GL32.GL_LINK_STATUS);
+		if (status != GL32.GL_TRUE)
+		{
+			String message = "Shader Link Error. Details: " + GL32.glGetProgramInfoLog(this.id);
+			this.free(); // important!
+			throw new RuntimeException(message);
+		}
+		GL32.glUseProgram(this.id); // This HAVE to be a direct call to prevent calling the overloaded version
+	}
+	
+	//endregion
+	
+	
+	
+	//=========//
+	// binding //
+	//=========//
+	//region
+	
+	public void bind() { GL32.glUseProgram(this.id); }
+	public void unbind() { GL32.glUseProgram(0); }
+	
+	public void free() { GL32.glDeleteProgram(this.id); }
+	
+	//endregion
+	
+	
+	
+	//============//
+	// attributes //
+	//============//
+	//region
+	
+	/**
+	 * WARNING: Slow native call! Cache it if possible!
+	 * Gets the location of an attribute variable with specified name.
+	 * Calls GL20.glGetAttribLocation(id, name)
+	 *
+	 * @param name Attribute name
+	 * @return Location of the attribute
+	 * @throws RuntimeException if attribute not found
+	 */
+	public int getAttributeLocation(CharSequence name)
+	{
+		int i = GL32.glGetAttribLocation(id, name);
+		if (i == -1) throw new RuntimeException("Attribute name not found: " + name);
+		return i;
+	}
+	/**
+	 * Same as above but without throwing errors. <br>
+	 * Returns -1 if the attribute doesn't exist or has been optimized out.
+	 */
+	public int tryGetAttributeLocation(CharSequence name)
+	{ return GL32.glGetAttribLocation(this.id, name); }
+	
+	//endregion
+	
+	
+	
+	//==========//
+	// uniforms //
+	//==========//
+	//region
+	
+	/**
+	 * WARNING: Slow native call! Cache it if possible!
+	 * Gets the location of a uniform variable with specified name.
+	 * Calls GL20.glGetUniformLocation(id, name)
+	 *
+	 * @param name Uniform name
+	 * @return Location of the Uniform
+	 * @throws RuntimeException if uniform not found
+	 */
+	public int getUniformLocation(CharSequence name) throws RuntimeException
+	{
+		int i = GL32.glGetUniformLocation(id, name);
+		if (i == -1)
+		{
+			throw new RuntimeException("Uniform name not found: " + name);
+		}
+		return i;
+	}
+	
+	// Same as above but without throwing errors.
+	// Return -1 if uniform doesn't exist or has been optimized out
+	public int tryGetUniformLocation(CharSequence name)
+	{ return GL32.glGetUniformLocation(this.id, name); }
+	
+	/** Requires a bound ShaderProgram. */
+	public void setUniform(int location, boolean value) { GL32.glUniform1i(location, value ? 1 : 0); }
+	/** @see GlShaderProgram#setUniform(int, boolean) */
+	public void trySetUniform(int location, boolean value) { if (location != -1) { this.setUniform(location, value); } }
+	
+	/** Requires a bound ShaderProgram. */
+	public void setUniform(int location, int value) { GL32.glUniform1i(location, value); }
+	/** @see GlShaderProgram#setUniform(int, int) */
+	public void trySetUniform(int location, int value) { if (location != -1) { this.setUniform(location, value); } }
+	
+	/** Requires a bound ShaderProgram. */
+	public void setUniform(int location, float value) { GL32.glUniform1f(location, value); }
+	/** @see GlShaderProgram#setUniform(int, float) */
+	public void trySetUniform(int location, float value) { if (location != -1) { this.setUniform(location, value); } }
+	
+	/** Requires a bound ShaderProgram. */
+	public void setUniform(int location, Vec3f value) { GL32.glUniform3f(location, value.x, value.y, value.z); }
+	/** @see GlShaderProgram#setUniform(int, Vec3f) */
+	public void trySetUniform(int location, Vec3f value) { if (location != -1) { this.setUniform(location, value); } }
+	
+	/** Requires a bound ShaderProgram. */
+	public void setUniform(int location, DhApiVec3i value) { GL32.glUniform3i(location, value.x, value.y, value.z); }
+	/** @see GlShaderProgram#setUniform(int, Mat4f) */
+	public void trySetUniform(int location, DhApiVec3i value) { if (location != -1) { this.setUniform(location, value); } }
+	
+	/** Requires a bound ShaderProgram. */
+	public void setUniform(int location, Mat4f value)
+	{
+		try (MemoryStack stack = MemoryStack.stackPush())
+		{
+			FloatBuffer buffer = stack.mallocFloat(4 * 4);
+			value.store(buffer);
+			GL32.glUniformMatrix4fv(location, false, buffer);
+		}
+	}
+	/** @see GlShaderProgram#setUniform(int, Mat4f) */
+	public void trySetUniform(int location, Mat4f value) { if (location != -1) { this.setUniform(location, value); } }
+	
+	/**
+	 * Converts the color's RGBA values into values between 0 and 1. <br>
+	 * Requires a bound ShaderProgram.
+	 */
+	public void setUniform(int location, Color value)
+	{
+		GL32.glUniform4f(location, 
+				value.getRed()   / 256.0f, 
+				value.getGreen() / 256.0f, 
+				value.getBlue()  / 256.0f, 
+				value.getAlpha() / 256.0f);
+	}
+	/** @see GlShaderProgram#setUniform(int, Color) */
+	public void trySetUniform(int location, Color value) { if (location != -1) { this.setUniform(location, value); } }
+	
+	//endregion
+	
+	
+	
+}

common/src/main/java/com/seibel/distanthorizons/common/render/openGl/glObject/texture/EGlDhDepthBufferFormat.java

@@ -0,0 +1,114 @@
+package com.seibel.distanthorizons.common.render.openGl.glObject.texture;
+
+import org.jetbrains.annotations.Nullable;
+import org.lwjgl.opengl.GL30C;
+import org.lwjgl.opengl.GL43C;
+
+public enum EGlDhDepthBufferFormat
+{
+	DEPTH(false),
+	DEPTH16(false),
+	DEPTH24(false),
+	DEPTH32(false),
+	DEPTH32F(false),
+	DEPTH_STENCIL(true),
+	DEPTH24_STENCIL8(true),
+	DEPTH32F_STENCIL8(true);
+	
+	
+	
+	private final boolean combinedStencil;
+	
+	EGlDhDepthBufferFormat(boolean combinedStencil) { this.combinedStencil = combinedStencil; }
+	
+	
+	
+	@Nullable
+	public static EGlDhDepthBufferFormat fromGlEnum(int glenum)
+	{
+		switch (glenum)
+		{
+			case GL30C.GL_DEPTH_COMPONENT:
+				return EGlDhDepthBufferFormat.DEPTH;
+			case GL30C.GL_DEPTH_COMPONENT16:
+				return EGlDhDepthBufferFormat.DEPTH16;
+			case GL30C.GL_DEPTH_COMPONENT24:
+				return EGlDhDepthBufferFormat.DEPTH24;
+			case GL30C.GL_DEPTH_COMPONENT32:
+				return EGlDhDepthBufferFormat.DEPTH32;
+			case GL30C.GL_DEPTH_COMPONENT32F:
+				return EGlDhDepthBufferFormat.DEPTH32F;
+			case GL30C.GL_DEPTH_STENCIL:
+				return EGlDhDepthBufferFormat.DEPTH_STENCIL;
+			case GL30C.GL_DEPTH24_STENCIL8:
+				return EGlDhDepthBufferFormat.DEPTH24_STENCIL8;
+			case GL30C.GL_DEPTH32F_STENCIL8:
+				return EGlDhDepthBufferFormat.DEPTH32F_STENCIL8;
+			default:
+				return null;
+		}
+	}
+	
+	public static EGlDhDepthBufferFormat fromGlEnumOrDefault(int glenum)
+	{
+		EGlDhDepthBufferFormat format = fromGlEnum(glenum);
+		if (format == null)
+		{
+			// yolo, just assume it's GL_DEPTH_COMPONENT
+			return EGlDhDepthBufferFormat.DEPTH;
+		}
+		return format;
+	}
+	
+	public int getGlInternalFormat()
+	{
+		switch (this)
+		{
+			case DEPTH:
+				return GL30C.GL_DEPTH_COMPONENT;
+			case DEPTH16:
+				return GL30C.GL_DEPTH_COMPONENT16;
+			case DEPTH24:
+				return GL30C.GL_DEPTH_COMPONENT24;
+			case DEPTH32:
+				return GL30C.GL_DEPTH_COMPONENT32;
+			case DEPTH32F:
+				return GL30C.GL_DEPTH_COMPONENT32F;
+			case DEPTH_STENCIL:
+				return GL30C.GL_DEPTH_STENCIL;
+			case DEPTH24_STENCIL8:
+				return GL30C.GL_DEPTH24_STENCIL8;
+			case DEPTH32F_STENCIL8:
+				return GL30C.GL_DEPTH32F_STENCIL8;
+		}
+		
+		throw new AssertionError("unreachable");
+	}
+	
+	public int getGlType() { return isCombinedStencil() ? GL30C.GL_DEPTH_STENCIL : GL30C.GL_DEPTH_COMPONENT; }
+	
+	public int getGlFormat()
+	{
+		switch (this)
+		{
+			case DEPTH:
+			case DEPTH16:
+				return GL43C.GL_UNSIGNED_SHORT;
+			case DEPTH24:
+			case DEPTH32:
+				return GL43C.GL_UNSIGNED_INT;
+			case DEPTH32F:
+				return GL30C.GL_FLOAT;
+			case DEPTH_STENCIL:
+			case DEPTH24_STENCIL8:
+				return GL30C.GL_UNSIGNED_INT_24_8;
+			case DEPTH32F_STENCIL8:
+				return GL30C.GL_FLOAT_32_UNSIGNED_INT_24_8_REV;
+		}
+		
+		throw new AssertionError("unreachable");
+	}
+	
+	public boolean isCombinedStencil() { return combinedStencil; }
+	
+}

common/src/main/java/com/seibel/distanthorizons/common/render/openGl/glObject/texture/EGlDhInternalTextureFormat.java

@@ -0,0 +1,131 @@
+package com.seibel.distanthorizons.common.render.openGl.glObject.texture;
+
+import com.seibel.distanthorizons.common.render.openGl.glObject.enums.EGlVersion;
+import org.lwjgl.opengl.GL11C;
+import org.lwjgl.opengl.GL30C;
+import org.lwjgl.opengl.GL31C;
+
+import java.util.Locale;
+import java.util.Optional;
+
+public enum EGlDhInternalTextureFormat
+{
+	RGBA(GL11C.GL_RGBA, EGlVersion.GL_11, EGlDhPixelFormat.RGBA),
+	
+	// 8-bit normalized
+	R8(GL30C.GL_R8, EGlVersion.GL_30, EGlDhPixelFormat.RED),
+	RG8(GL30C.GL_RG8, EGlVersion.GL_30, EGlDhPixelFormat.RG),
+	RGB8(GL11C.GL_RGB8, EGlVersion.GL_11, EGlDhPixelFormat.RGB),
+	RGBA8(GL11C.GL_RGBA8, EGlVersion.GL_11, EGlDhPixelFormat.RGBA),
+	
+	// 8-bit signed normalized
+	R8_SNORM(GL31C.GL_R8_SNORM, EGlVersion.GL_31, EGlDhPixelFormat.RED),
+	RG8_SNORM(GL31C.GL_RG8_SNORM, EGlVersion.GL_31, EGlDhPixelFormat.RG),
+	RGB8_SNORM(GL31C.GL_RGB8_SNORM, EGlVersion.GL_31, EGlDhPixelFormat.RGB),
+	RGBA8_SNORM(GL31C.GL_RGBA8_SNORM, EGlVersion.GL_31, EGlDhPixelFormat.RGBA),
+	
+	// 16-bit normalized
+	R16(GL30C.GL_R16, EGlVersion.GL_30, EGlDhPixelFormat.RED),
+	RG16(GL30C.GL_RG16, EGlVersion.GL_30, EGlDhPixelFormat.RG),
+	RGB16(GL11C.GL_RGB16, EGlVersion.GL_11, EGlDhPixelFormat.RGB),
+	RGBA16(GL11C.GL_RGBA16, EGlVersion.GL_11, EGlDhPixelFormat.RGBA),
+	
+	// 16-bit signed normalized
+	R16_SNORM(GL31C.GL_R16_SNORM, EGlVersion.GL_31, EGlDhPixelFormat.RED),
+	RG16_SNORM(GL31C.GL_RG16_SNORM, EGlVersion.GL_31, EGlDhPixelFormat.RG),
+	RGB16_SNORM(GL31C.GL_RGB16_SNORM, EGlVersion.GL_31, EGlDhPixelFormat.RGB),
+	RGBA16_SNORM(GL31C.GL_RGBA16_SNORM, EGlVersion.GL_31, EGlDhPixelFormat.RGBA),
+	
+	// 16-bit float
+	R16F(GL30C.GL_R16F, EGlVersion.GL_30, EGlDhPixelFormat.RED),
+	RG16F(GL30C.GL_RG16F, EGlVersion.GL_30, EGlDhPixelFormat.RG),
+	RGB16F(GL30C.GL_RGB16F, EGlVersion.GL_30, EGlDhPixelFormat.RGB),
+	RGBA16F(GL30C.GL_RGBA16F, EGlVersion.GL_30, EGlDhPixelFormat.RGBA),
+	
+	// 32-bit float
+	R32F(GL30C.GL_R32F, EGlVersion.GL_30, EGlDhPixelFormat.RED),
+	RG32F(GL30C.GL_RG32F, EGlVersion.GL_30, EGlDhPixelFormat.RG),
+	RGB32F(GL30C.GL_RGB32F, EGlVersion.GL_30, EGlDhPixelFormat.RGB),
+	RGBA32F(GL30C.GL_RGBA32F, EGlVersion.GL_30, EGlDhPixelFormat.RGBA),
+	
+	// 8-bit integer
+	R8I(GL30C.GL_R8I, EGlVersion.GL_30, EGlDhPixelFormat.RED_INTEGER),
+	RG8I(GL30C.GL_RG8I, EGlVersion.GL_30, EGlDhPixelFormat.RG_INTEGER),
+	RGB8I(GL30C.GL_RGB8I, EGlVersion.GL_30, EGlDhPixelFormat.RGB_INTEGER),
+	RGBA8I(GL30C.GL_RGBA8I, EGlVersion.GL_30, EGlDhPixelFormat.RGBA_INTEGER),
+	
+	// 8-bit unsigned integer
+	R8UI(GL30C.GL_R8UI, EGlVersion.GL_30, EGlDhPixelFormat.RED_INTEGER),
+	RG8UI(GL30C.GL_RG8UI, EGlVersion.GL_30, EGlDhPixelFormat.RG_INTEGER),
+	RGB8UI(GL30C.GL_RGB8UI, EGlVersion.GL_30, EGlDhPixelFormat.RGB_INTEGER),
+	RGBA8UI(GL30C.GL_RGBA8UI, EGlVersion.GL_30, EGlDhPixelFormat.RGBA_INTEGER),
+	
+	// 16-bit integer
+	R16I(GL30C.GL_R16I, EGlVersion.GL_30, EGlDhPixelFormat.RED_INTEGER),
+	RG16I(GL30C.GL_RG16I, EGlVersion.GL_30, EGlDhPixelFormat.RG_INTEGER),
+	RGB16I(GL30C.GL_RGB16I, EGlVersion.GL_30, EGlDhPixelFormat.RGB_INTEGER),
+	RGBA16I(GL30C.GL_RGBA16I, EGlVersion.GL_30, EGlDhPixelFormat.RGBA_INTEGER),
+	
+	// 16-bit unsigned integer
+	R16UI(GL30C.GL_R16UI, EGlVersion.GL_30, EGlDhPixelFormat.RED_INTEGER),
+	RG16UI(GL30C.GL_RG16UI, EGlVersion.GL_30, EGlDhPixelFormat.RG_INTEGER),
+	RGB16UI(GL30C.GL_RGB16UI, EGlVersion.GL_30, EGlDhPixelFormat.RGB_INTEGER),
+	RGBA16UI(GL30C.GL_RGBA16UI, EGlVersion.GL_30, EGlDhPixelFormat.RGBA_INTEGER),
+	
+	// 32-bit integer
+	R32I(GL30C.GL_R32I, EGlVersion.GL_30, EGlDhPixelFormat.RED_INTEGER),
+	RG32I(GL30C.GL_RG32I, EGlVersion.GL_30, EGlDhPixelFormat.RG_INTEGER),
+	RGB32I(GL30C.GL_RGB32I, EGlVersion.GL_30, EGlDhPixelFormat.RGB_INTEGER),
+	RGBA32I(GL30C.GL_RGBA32I, EGlVersion.GL_30, EGlDhPixelFormat.RGBA_INTEGER),
+	
+	// 32-bit unsigned integer
+	R32UI(GL30C.GL_R32UI, EGlVersion.GL_30, EGlDhPixelFormat.RED_INTEGER),
+	RG32UI(GL30C.GL_RG32UI, EGlVersion.GL_30, EGlDhPixelFormat.RG_INTEGER),
+	RGB32UI(GL30C.GL_RGB32UI, EGlVersion.GL_30, EGlDhPixelFormat.RGB_INTEGER),
+	RGBA32UI(GL30C.GL_RGBA32UI, EGlVersion.GL_30, EGlDhPixelFormat.RGBA_INTEGER),
+	
+	// Mixed
+	R3_G3_B2(GL11C.GL_R3_G3_B2, EGlVersion.GL_11, EGlDhPixelFormat.RGB),
+	RGB5_A1(GL11C.GL_RGB5_A1, EGlVersion.GL_11, EGlDhPixelFormat.RGBA),
+	RGB10_A2(GL11C.GL_RGB10_A2, EGlVersion.GL_11, EGlDhPixelFormat.RGBA),
+	R11F_G11F_B10F(GL30C.GL_R11F_G11F_B10F, EGlVersion.GL_30, EGlDhPixelFormat.RGB),
+	RGB9_E5(GL30C.GL_RGB9_E5, EGlVersion.GL_30, EGlDhPixelFormat.RGB);
+	
+	
+	
+	private final int glFormat;
+	private final EGlVersion minimumGlVersion;
+	private final EGlDhPixelFormat expectedPixelFormat;
+	
+	
+	
+	EGlDhInternalTextureFormat(int glFormat, EGlVersion minimumGlVersion, EGlDhPixelFormat expectedPixelFormat)
+	{
+		this.glFormat = glFormat;
+		this.minimumGlVersion = minimumGlVersion;
+		this.expectedPixelFormat = expectedPixelFormat;
+	}
+	
+	
+	
+	public static Optional<EGlDhInternalTextureFormat> fromString(String name)
+	{
+		try
+		{
+			return Optional.of(EGlDhInternalTextureFormat.valueOf(name.toUpperCase(Locale.US)));
+		}
+		catch (IllegalArgumentException e)
+		{
+			return Optional.empty();
+		}
+	}
+	
+	public int getGlFormat() { return this.glFormat; }
+	
+	public EGlDhPixelFormat getPixelFormat() { return this.expectedPixelFormat; }
+	
+	public EGlVersion getMinimumGlVersion() { return this.minimumGlVersion; }
+	
+	
+	
+}

common/src/main/java/com/seibel/distanthorizons/common/render/openGl/glObject/texture/EGlDhPixelFormat.java

@@ -0,0 +1,61 @@
+package com.seibel.distanthorizons.common.render.openGl.glObject.texture;
+
+import com.seibel.distanthorizons.common.render.openGl.glObject.enums.EGlVersion;
+import org.lwjgl.opengl.GL11C;
+import org.lwjgl.opengl.GL12C;
+import org.lwjgl.opengl.GL30C;
+
+import java.util.Locale;
+import java.util.Optional;
+
+public enum EGlDhPixelFormat
+{
+	RED(GL11C.GL_RED, EGlVersion.GL_11, false),
+	RG(GL30C.GL_RG, EGlVersion.GL_30, false),
+	RGB(GL11C.GL_RGB, EGlVersion.GL_11, false),
+	BGR(GL12C.GL_BGR, EGlVersion.GL_12, false),
+	RGBA(GL11C.GL_RGBA, EGlVersion.GL_11, false),
+	BGRA(GL12C.GL_BGRA, EGlVersion.GL_12, false),
+	RED_INTEGER(GL30C.GL_RED_INTEGER, EGlVersion.GL_30, true),
+	RG_INTEGER(GL30C.GL_RG_INTEGER, EGlVersion.GL_30, true),
+	RGB_INTEGER(GL30C.GL_RGB_INTEGER, EGlVersion.GL_30, true),
+	BGR_INTEGER(GL30C.GL_BGR_INTEGER, EGlVersion.GL_30, true),
+	RGBA_INTEGER(GL30C.GL_RGBA_INTEGER, EGlVersion.GL_30, true),
+	BGRA_INTEGER(GL30C.GL_BGRA_INTEGER, EGlVersion.GL_30, true);
+	
+	
+	
+	private final int glFormat;
+	private final EGlVersion minimumGlVersion;
+	private final boolean isInteger;
+	
+	
+	
+	EGlDhPixelFormat(int glFormat, EGlVersion minimumGlVersion, boolean isInteger)
+	{
+		this.glFormat = glFormat;
+		this.minimumGlVersion = minimumGlVersion;
+		this.isInteger = isInteger;
+	}
+	
+	
+	
+	public static Optional<EGlDhPixelFormat> fromString(String name)
+	{
+		try
+		{
+			return Optional.of(EGlDhPixelFormat.valueOf(name.toUpperCase(Locale.US)));
+		}
+		catch (IllegalArgumentException e)
+		{
+			return Optional.empty();
+		}
+	}
+	
+	public int getGlFormat() { return this.glFormat; }
+	
+	public EGlVersion getMinimumGlVersion() { return this.minimumGlVersion; }
+	
+	public boolean isInteger() { return this.isInteger; }
+	
+}

common/src/main/java/com/seibel/distanthorizons/common/render/openGl/glObject/texture/EGlDhPixelType.java

@@ -0,0 +1,65 @@
+package com.seibel.distanthorizons.common.render.openGl.glObject.texture;
+
+import com.seibel.distanthorizons.common.render.openGl.glObject.enums.EGlVersion;
+import org.lwjgl.opengl.GL11C;
+import org.lwjgl.opengl.GL12C;
+import org.lwjgl.opengl.GL30C;
+
+import java.util.Locale;
+import java.util.Optional;
+
+public enum EGlDhPixelType
+{
+	BYTE(GL11C.GL_BYTE, EGlVersion.GL_11),
+	SHORT(GL11C.GL_SHORT, EGlVersion.GL_11),
+	INT(GL11C.GL_INT, EGlVersion.GL_11),
+	HALF_FLOAT(GL30C.GL_HALF_FLOAT, EGlVersion.GL_30),
+	FLOAT(GL11C.GL_FLOAT, EGlVersion.GL_11),
+	UNSIGNED_BYTE(GL11C.GL_UNSIGNED_BYTE, EGlVersion.GL_11),
+	UNSIGNED_BYTE_3_3_2(GL12C.GL_UNSIGNED_BYTE_3_3_2, EGlVersion.GL_12),
+	UNSIGNED_BYTE_2_3_3_REV(GL12C.GL_UNSIGNED_BYTE_2_3_3_REV, EGlVersion.GL_12),
+	UNSIGNED_SHORT(GL11C.GL_UNSIGNED_SHORT, EGlVersion.GL_11),
+	UNSIGNED_SHORT_5_6_5(GL12C.GL_UNSIGNED_SHORT_5_6_5, EGlVersion.GL_12),
+	UNSIGNED_SHORT_5_6_5_REV(GL12C.GL_UNSIGNED_SHORT_5_6_5_REV, EGlVersion.GL_12),
+	UNSIGNED_SHORT_4_4_4_4(GL12C.GL_UNSIGNED_SHORT_4_4_4_4, EGlVersion.GL_12),
+	UNSIGNED_SHORT_4_4_4_4_REV(GL12C.GL_UNSIGNED_SHORT_4_4_4_4_REV, EGlVersion.GL_12),
+	UNSIGNED_SHORT_5_5_5_1(GL12C.GL_UNSIGNED_SHORT_5_5_5_1, EGlVersion.GL_12),
+	UNSIGNED_SHORT_1_5_5_5_REV(GL12C.GL_UNSIGNED_SHORT_1_5_5_5_REV, EGlVersion.GL_12),
+	UNSIGNED_INT(GL11C.GL_UNSIGNED_INT, EGlVersion.GL_11),
+	UNSIGNED_INT_8_8_8_8(GL12C.GL_UNSIGNED_INT_8_8_8_8, EGlVersion.GL_12),
+	UNSIGNED_INT_8_8_8_8_REV(GL12C.GL_UNSIGNED_INT_8_8_8_8_REV, EGlVersion.GL_12),
+	UNSIGNED_INT_10_10_10_2(GL12C.GL_UNSIGNED_INT_10_10_10_2, EGlVersion.GL_12),
+	UNSIGNED_INT_2_10_10_10_REV(GL12C.GL_UNSIGNED_INT_2_10_10_10_REV, EGlVersion.GL_12);
+	
+	
+	
+	private final int glFormat;
+	private final EGlVersion minimumGlVersion;
+	
+	
+	
+	EGlDhPixelType(int glFormat, EGlVersion minimumGlVersion)
+	{
+		this.glFormat = glFormat;
+		this.minimumGlVersion = minimumGlVersion;
+	}
+	
+	
+	
+	public static Optional<EGlDhPixelType> fromString(String name)
+	{
+		try
+		{
+			return Optional.of(EGlDhPixelType.valueOf(name.toUpperCase(Locale.US)));
+		}
+		catch (IllegalArgumentException e)
+		{
+			return Optional.empty();
+		}
+	}
+	
+	public int getGlFormat() { return glFormat; }
+	
+	public EGlVersion getMinimumGlVersion() { return minimumGlVersion; }
+	
+}

common/src/main/java/com/seibel/distanthorizons/common/render/openGl/glObject/texture/GlDhColorTexture.java

@@ -0,0 +1,183 @@
+package com.seibel.distanthorizons.common.render.openGl.glObject.texture;
+
+import com.seibel.distanthorizons.common.wrappers.minecraft.MinecraftGLWrapper;
+import org.joml.Vector2i;
+import org.lwjgl.opengl.GL11C;
+import org.lwjgl.opengl.GL13C;
+import org.lwjgl.opengl.GL43C;
+
+import java.nio.ByteBuffer;
+
+public class GlDhColorTexture
+{
+	private static final MinecraftGLWrapper GLMC = MinecraftGLWrapper.INSTANCE;
+	
+	
+	private final EGlDhInternalTextureFormat internalFormat;
+	private final EGlDhPixelFormat format;
+	private final EGlDhPixelType type;
+	private int width;
+	private int height;
+
+	private boolean isValid;
+	/** AKA, the OpenGL name of this texture */
+	private final int id;
+
+	private static final ByteBuffer NULL_BUFFER = null;
+	
+	
+	
+	//=============//
+	// constructor //
+	//=============//
+	
+	public GlDhColorTexture(Builder builder)
+	{
+		this.isValid = true;
+		
+		this.internalFormat = builder.internalFormat;
+		this.format = builder.format;
+		this.type = builder.type;
+		
+		this.width = builder.width;
+		this.height = builder.height;
+		
+		this.id = GL43C.glGenTextures();
+		
+		boolean isPixelFormatInteger = builder.internalFormat.getPixelFormat().isInteger();
+		this.setupTexture(this.id, builder.width, builder.height, !isPixelFormatInteger); // this binds the texture
+		
+		// Clean up after ourselves
+		// This is strictly defensive to ensure that other buggy code doesn't tamper with our textures
+		GL43C.glBindTexture(GL43C.GL_TEXTURE_2D, 0);
+	}
+	
+	
+	
+	//=========//
+	// methods //
+	//=========//
+	
+	private void setupTexture(int id, int width, int height, boolean allowsLinear)
+	{
+		this.resizeTexture(id, width, height);
+		
+		GL43C.glTexParameteri(GL11C.GL_TEXTURE_2D, GL11C.GL_TEXTURE_MIN_FILTER, allowsLinear ? GL11C.GL_LINEAR : GL11C.GL_NEAREST);
+		GL43C.glTexParameteri(GL11C.GL_TEXTURE_2D, GL11C.GL_TEXTURE_MAG_FILTER, allowsLinear ? GL11C.GL_LINEAR : GL11C.GL_NEAREST);
+		GL43C.glTexParameteri(GL11C.GL_TEXTURE_2D, GL11C.GL_TEXTURE_WRAP_S, GL13C.GL_CLAMP_TO_EDGE);
+		GL43C.glTexParameteri(GL11C.GL_TEXTURE_2D, GL11C.GL_TEXTURE_WRAP_T, GL13C.GL_CLAMP_TO_EDGE);
+		
+		// disable mip-mapping since DH is just going to draw straight to the screen
+		GL43C.glTexParameteri(GL43C.GL_TEXTURE_2D, GL43C.GL_TEXTURE_BASE_LEVEL, 0);
+		GL43C.glTexParameteri(GL43C.GL_TEXTURE_2D, GL43C.GL_TEXTURE_MAX_LEVEL, 0);
+	}
+	
+	private void resizeTexture(int texture, int width, int height)
+	{
+		GL43C.glBindTexture(GL43C.GL_TEXTURE_2D, texture);
+		GL43C.glTexImage2D(GL11C.GL_TEXTURE_2D, 0, this.internalFormat.getGlFormat(), width, height, 0, this.format.getGlFormat(), this.type.getGlFormat(), NULL_BUFFER);
+	}
+	
+	void resize(Vector2i textureScaleOverride) { this.resize(textureScaleOverride.x, textureScaleOverride.y); }
+	
+	// Package private, call CompositeRenderTargets#resizeIfNeeded instead.
+	public void resize(int width, int height)
+	{
+		this.throwIfInvalid();
+		
+		this.width = width;
+		this.height = height;
+		
+		this.resizeTexture(this.id, width, height);
+	}
+	
+	public EGlDhInternalTextureFormat getInternalFormat() { return this.internalFormat; }
+	
+	public int getTextureId()
+	{
+		this.throwIfInvalid();
+		return this.id;
+	}
+	
+	public int getWidth() { return this.width; }
+	
+	public int getHeight() { return this.height; }
+	
+	public void destroy()
+	{
+		this.throwIfInvalid();
+		this.isValid = false;
+		
+		GLMC.glDeleteTextures(this.id);
+	}
+	
+	/** @throws IllegalStateException if the texture isn't valid */
+	private void throwIfInvalid()
+	{
+		if (!this.isValid)
+		{
+			throw new IllegalStateException("Attempted to use a deleted composite render target");
+		}
+	}
+	
+	public static Builder builder() { return new Builder(); }
+	
+	
+	
+	//================//
+	// helper classes //
+	//================//
+	
+	public static class Builder
+	{
+		private EGlDhInternalTextureFormat internalFormat = EGlDhInternalTextureFormat.RGBA8;
+		private int width = 0;
+		private int height = 0;
+		private EGlDhPixelFormat format = EGlDhPixelFormat.RGBA;
+		private EGlDhPixelType type = EGlDhPixelType.UNSIGNED_BYTE;
+		
+		private Builder()
+		{
+			// No-op
+		}
+		
+		public Builder setInternalFormat(EGlDhInternalTextureFormat format)
+		{
+			this.internalFormat = format;
+			return this;
+		}
+		
+		public Builder setDimensions(int width, int height)
+		{
+			if (width <= 0)
+			{
+				throw new IllegalArgumentException("Width must be greater than zero");
+			}
+			
+			if (height <= 0)
+			{
+				throw new IllegalArgumentException("Height must be greater than zero");
+			}
+			
+			this.width = width;
+			this.height = height;
+			
+			return this;
+		}
+		
+		public Builder setPixelFormat(EGlDhPixelFormat pixelFormat)
+		{
+			this.format = pixelFormat;
+			return this;
+		}
+		
+		public Builder setPixelType(EGlDhPixelType pixelType)
+		{
+			this.type = pixelType;
+			return this;
+		}
+		
+		public GlDhColorTexture build() { return new GlDhColorTexture(this); }
+		
+	}
+}

common/src/main/java/com/seibel/distanthorizons/common/render/openGl/glObject/texture/GlDhDepthTexture.java

@@ -0,0 +1,62 @@
+package com.seibel.distanthorizons.common.render.openGl.glObject.texture;
+
+import com.seibel.distanthorizons.common.wrappers.minecraft.MinecraftGLWrapper;
+import org.lwjgl.opengl.GL11C;
+import org.lwjgl.opengl.GL13C;
+import org.lwjgl.opengl.GL43C;
+
+import java.nio.ByteBuffer;
+
+public class GlDhDepthTexture
+{
+	private static final MinecraftGLWrapper GLMC = MinecraftGLWrapper.INSTANCE;
+	
+	
+	private int id;
+	public GlDhDepthTexture(int width, int height, EGlDhDepthBufferFormat format)
+	{
+		this.id = GL43C.glGenTextures();
+		
+		this.resize(width, height, format);
+		
+		GL43C.glTexParameteri(GL11C.GL_TEXTURE_2D, GL11C.GL_TEXTURE_MIN_FILTER, GL11C.GL_NEAREST);
+		GL43C.glTexParameteri(GL11C.GL_TEXTURE_2D, GL11C.GL_TEXTURE_MAG_FILTER, GL11C.GL_NEAREST);
+		GL43C.glTexParameteri(GL11C.GL_TEXTURE_2D, GL11C.GL_TEXTURE_WRAP_S, GL13C.GL_CLAMP_TO_EDGE);
+		GL43C.glTexParameteri(GL11C.GL_TEXTURE_2D, GL11C.GL_TEXTURE_WRAP_T, GL13C.GL_CLAMP_TO_EDGE);
+		
+		// disable mip-mapping since DH is just going to draw straight to the screen
+		GL43C.glTexParameteri(GL43C.GL_TEXTURE_2D, GL43C.GL_TEXTURE_BASE_LEVEL, 0);
+		GL43C.glTexParameteri(GL43C.GL_TEXTURE_2D, GL43C.GL_TEXTURE_MAX_LEVEL, 0);
+		
+		GL43C.glBindTexture(GL43C.GL_TEXTURE_2D, 0);
+	}
+	
+	// For internal use by Iris for copying data. Do not use this in DH.
+	public GlDhDepthTexture(int id) { this.id = id; }
+	
+	public void resize(int width, int height, EGlDhDepthBufferFormat format)
+	{
+		GL43C.glBindTexture(GL43C.GL_TEXTURE_2D, this.getTextureId());
+		GL43C.glTexImage2D(GL11C.GL_TEXTURE_2D, 0, format.getGlInternalFormat(), width, height, 0,
+				format.getGlType(), format.getGlFormat(), (ByteBuffer) null);
+	}
+	
+	public int getTextureId()
+	{
+		if (this.id == -1)
+		{
+			throw new IllegalStateException("Depth texture does not exist!");
+		}
+		
+		return this.id;
+	}
+	
+	public void destroy()
+	{
+		GLMC.glDeleteTextures(this.getTextureId());
+		this.id = -1;
+	}
+	
+	
+	
+}

common/src/main/java/com/seibel/distanthorizons/common/render/openGl/glObject/vertexAttribute/GlAbstractVertexAttribute.java

@@ -0,0 +1,92 @@
+/*
+ *    This file is part of the Distant Horizons mod
+ *    licensed under the GNU LGPL 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 Lesser 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 Lesser General Public License for more details.
+ *
+ *    You should have received a copy of the GNU Lesser General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.seibel.distanthorizons.common.render.openGl.glObject.vertexAttribute;
+
+import com.seibel.distanthorizons.common.render.openGl.glObject.GLProxy;
+import org.lwjgl.opengl.GL32;
+
+/**
+ * Base for binding/unbinding Vertex Attribute objects (VAO's).
+ * 
+ * @see GlVertexAttributePostGL43
+ * @see GlVertexAttributePreGL43
+ */
+public abstract class GlAbstractVertexAttribute
+{
+	/** Stores the handle of the AbstractVertexAttribute. */
+	public final int id;
+	
+	
+	
+	//==============//
+	// constructors //
+	//==============//
+	
+	// This will bind AbstractVertexAttribute
+	protected GlAbstractVertexAttribute()
+	{
+		this.id = GL32.glGenVertexArrays();
+		GL32.glBindVertexArray(this.id);
+	}
+	
+	public static GlAbstractVertexAttribute create()
+	{
+		if (GLProxy.getInstance().vertexAttributeBufferBindingSupported)
+		{
+			return new GlVertexAttributePostGL43();
+		}
+		else
+		{
+			return new GlVertexAttributePreGL43();
+		}
+	}
+	
+	
+	
+	//=========//
+	// binding //
+	//=========//
+	
+	public void bind() { GL32.glBindVertexArray(this.id); }
+	public void unbind() { GL32.glBindVertexArray(0); }
+	
+	/** Always remember to always free your resources! */
+	public void free() { GL32.glDeleteVertexArrays(this.id); }
+	
+	
+	
+	//==================//
+	// abstract methods //
+	//==================//
+	
+	/** Requires both AbstractVertexAttribute and VertexBuffer to be bound */
+	public abstract void bindBufferToAllBindingPoints(int buffer);
+	/** Requires both AbstractVertexAttribute and VertexBuffer to be bound */
+	public abstract void bindBufferToBindingPoint(int buffer, int bindingPoint);
+	/** Requires both AbstractVertexAttribute to be bound */
+	public abstract void unbindBuffersFromAllBindingPoint();
+	/** Requires both AbstractVertexAttribute to be bound */
+	public abstract void unbindBuffersFromBindingPoint(int bindingPoint);
+	/** Requires both AbstractVertexAttribute to be bound */
+	public abstract void setVertexAttribute(int bindingPoint, int attributeIndex, GlVertexPointer attribute);
+	/** Requires both AbstractVertexAttribute to be bound */
+	public abstract void completeAndCheck(int expectedStrideSize);
+	
+}

common/src/main/java/com/seibel/distanthorizons/common/render/openGl/glObject/vertexAttribute/GlVertexAttributePostGL43.java

@@ -0,0 +1,155 @@
+/*
+ *    This file is part of the Distant Horizons mod
+ *    licensed under the GNU LGPL 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 Lesser 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 Lesser General Public License for more details.
+ *
+ *    You should have received a copy of the GNU Lesser General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.seibel.distanthorizons.common.render.openGl.glObject.vertexAttribute;
+
+import com.seibel.distanthorizons.core.config.Config;
+import com.seibel.distanthorizons.core.logging.DhLogger;
+import com.seibel.distanthorizons.core.logging.DhLoggerBuilder;
+import org.lwjgl.opengl.GL43;
+
+/**
+ * In OpenGL 4.3 and later, Vertex Attribute got a make-over.
+ * Now it provides support for buffer binding points natively.
+ * This means that setting up the VAO is just use ONE native call when
+ * binding to a buffer. <br><br>
+ * 
+ * Since I no longer need to implement binding points, I also no
+ * longer needs to keep track of Pointers.
+ */
+public final class GlVertexAttributePostGL43 extends GlAbstractVertexAttribute
+{
+	private static final DhLogger LOGGER = new DhLoggerBuilder()
+			.fileLevelConfig(Config.Common.Logging.logRendererGLEventToFile)
+			.chatLevelConfig(Config.Common.Logging.logRendererGLEventToChat)
+			.build();
+	
+	
+	int numberOfBindingPoints = 0;
+	int strideSize = 0;
+	
+	
+	
+	//=============//
+	// constructor //
+	//=============//
+	
+	/** This will bind the {@link GlAbstractVertexAttribute} */
+	public GlVertexAttributePostGL43()
+	{
+		super(); // also bind AbstractVertexAttribute
+	}
+	
+	
+	
+	//=========//
+	// binding //
+	//=========//
+	
+	/** Requires both AbstractVertexAttribute and VertexBuffer to be bound */
+	@Override
+	public void bindBufferToAllBindingPoints(int buffer)
+	{
+		for (int i = 0; i < this.numberOfBindingPoints; i++)
+		{
+			GL43.glBindVertexBuffer(i, buffer, 0, this.strideSize);
+		}
+	}
+	
+	/** Requires both AbstractVertexAttribute and VertexBuffer to be bound */
+	@Override
+	public void bindBufferToBindingPoint(int buffer, int bindingPoint)
+	{
+		GL43.glBindVertexBuffer(bindingPoint, buffer, 0, this.strideSize);
+	}
+	
+	
+	
+	//===========//
+	// unbinding //
+	//===========//
+	
+	/** Requires AbstractVertexAttribute to be bound */
+	@Override
+	public void unbindBuffersFromAllBindingPoint()
+	{
+		for (int i = 0; i < this.numberOfBindingPoints; i++)
+		{
+			GL43.glBindVertexBuffer(i, 0, 0, 0);
+		}
+	}
+	
+	/** Requires AbstractVertexAttribute to be bound */
+	@Override
+	public void unbindBuffersFromBindingPoint(int bindingPoint)
+	{
+		GL43.glBindVertexBuffer(bindingPoint, 0, 0, 0);
+	}
+	
+	
+	
+	//==========================//
+	// manual attribute setting //
+	//==========================//
+	
+	/** Requires AbstractVertexAttribute to be bound */
+	@Override
+	public void setVertexAttribute(int bindingPoint, int attributeIndex, GlVertexPointer attribute)
+	{
+		if (attribute.useInteger)
+		{
+			GL43.glVertexAttribIFormat(attributeIndex, attribute.elementCount, attribute.glType, this.strideSize);
+		}
+		else
+		{
+			GL43.glVertexAttribFormat(attributeIndex, attribute.elementCount, attribute.glType,
+					attribute.normalized, this.strideSize); // Here strideSize is new attrib offset
+		}
+		
+		this.strideSize += attribute.byteSize;
+		if (this.numberOfBindingPoints <= bindingPoint)
+		{
+			this.numberOfBindingPoints = bindingPoint + 1;
+		}
+		GL43.glVertexAttribBinding(attributeIndex, bindingPoint);
+		GL43.glEnableVertexAttribArray(attributeIndex);
+	}
+	
+	
+	
+	//============//
+	// validation //
+	//============//
+	
+	/** Requires AbstractVertexAttribute to be bound */
+	@Override
+	public void completeAndCheck(int expectedStrideSize)
+	{
+		if (this.strideSize != expectedStrideSize)
+		{
+			LOGGER.error("Vertex Attribute calculated stride size " + this.strideSize +
+					" does not match the provided expected stride size " + expectedStrideSize + "!");
+			throw new IllegalArgumentException("Vertex Attribute Incorrect Format");
+		}
+		
+		LOGGER.info("Vertex Attribute (GL43+) completed. It contains " + this.numberOfBindingPoints
+				+ " binding points and a stride size of " + this.strideSize);
+	}
+	
+}

common/src/main/java/com/seibel/distanthorizons/common/render/openGl/glObject/vertexAttribute/GlVertexAttributePreGL43.java

@@ -0,0 +1,253 @@
+/*
+ *    This file is part of the Distant Horizons mod
+ *    licensed under the GNU LGPL 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 Lesser 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 Lesser General Public License for more details.
+ *
+ *    You should have received a copy of the GNU Lesser General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.seibel.distanthorizons.common.render.openGl.glObject.vertexAttribute;
+
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.TreeMap;
+import java.util.TreeSet;
+
+import com.seibel.distanthorizons.core.config.Config;
+import com.seibel.distanthorizons.core.logging.DhLogger;
+import com.seibel.distanthorizons.core.logging.DhLoggerBuilder;
+import org.lwjgl.opengl.GL32;
+
+
+public final class GlVertexAttributePreGL43 extends GlAbstractVertexAttribute
+{
+	private static final DhLogger LOGGER = new DhLoggerBuilder()
+			.fileLevelConfig(Config.Common.Logging.logRendererGLEventToFile)
+			.chatLevelConfig(Config.Common.Logging.logRendererGLEventToChat)
+			.build();
+	
+	
+	// I tried to use raw arrays as much as possible since those lookups
+	// happen every frame, and the speed directly affects fps
+	int strideSize = 0;
+	int[][] bindingPointsToIndex;
+	GlVertexPointer[] pointers;
+	int[] pointersOffset;
+	
+	TreeMap<Integer, TreeSet<Integer>> bindingPointsToIndexBuilder;
+	ArrayList<GlVertexPointer> pointersBuilder;
+	
+	
+	
+	//=============//
+	// constructor //
+	//=============//
+	
+	/** This will bind the {@link GlAbstractVertexAttribute} */
+	public GlVertexAttributePreGL43()
+	{
+		super(); // also bind AbstractVertexAttribute
+		this.bindingPointsToIndexBuilder = new TreeMap<>();
+		this.pointersBuilder = new ArrayList<>();
+	}
+	
+	
+	
+	//=========//
+	// binding //
+	//=========//
+	
+	/** Requires both AbstractVertexAttribute and VertexBuffer to be bound */
+	@Override
+	public void bindBufferToAllBindingPoints(int buffer)
+	{
+		for (int i = 0; i < this.pointers.length; i++)
+		{
+			GL32.glEnableVertexAttribArray(i);
+		}
+		
+		for (int i = 0; i < this.pointers.length; i++)
+		{
+			GlVertexPointer pointer = this.pointers[i];
+			if (pointer == null)
+			{
+				continue;
+			}
+			
+			if (pointer.useInteger)
+			{
+				GL32.glVertexAttribIPointer(i, pointer.elementCount, pointer.glType,
+						this.strideSize, this.pointersOffset[i]);
+			}
+			else
+			{
+				GL32.glVertexAttribPointer(i, pointer.elementCount, pointer.glType,
+					pointer.normalized, this.strideSize, this.pointersOffset[i]);
+			}
+		}
+	}
+	
+	/** Requires both AbstractVertexAttribute and VertexBuffer to be bound */
+	@Override
+	public void bindBufferToBindingPoint(int buffer, int bindingPoint)
+	{
+		int[] bindingPointIndexes = this.bindingPointsToIndex[bindingPoint];
+		
+		for (int bindingPointIndex : bindingPointIndexes)
+		{
+			GL32.glEnableVertexAttribArray(bindingPointIndex);
+		}
+		
+		for (int bindingPointIndex : bindingPointIndexes)
+		{
+			GlVertexPointer pointer = this.pointers[bindingPointIndex];
+			if (pointer == null)
+			{
+				continue;
+			}
+			
+			if (pointer.useInteger)
+			{
+				GL32.glVertexAttribIPointer(bindingPointIndex, pointer.elementCount, pointer.glType,
+						this.strideSize, this.pointersOffset[bindingPointIndex]);
+			}
+			else
+			{
+				GL32.glVertexAttribPointer(bindingPointIndex, pointer.elementCount, pointer.glType,
+						pointer.normalized, this.strideSize, this.pointersOffset[bindingPointIndex]);
+			}
+		}
+		
+	}
+	
+	
+	
+	//===========//
+	// unbinding //
+	//===========//
+	
+	/** Requires AbstractVertexAttribute to be bound */
+	@Override
+	public void unbindBuffersFromAllBindingPoint()
+	{
+		for (int i = 0; i < this.pointers.length; i++)
+		{
+			GL32.glDisableVertexAttribArray(i);
+		}
+	}
+	
+	/** Requires AbstractVertexAttribute to be bound */
+	@Override
+	public void unbindBuffersFromBindingPoint(int bindingPoint)
+	{
+		int[] bindingPointIndexes = this.bindingPointsToIndex[bindingPoint];
+		for (int bindingPointIndex : bindingPointIndexes)
+		{
+			GL32.glDisableVertexAttribArray(bindingPointIndex);
+		}
+	}
+	
+	
+	
+	//==========================//
+	// manual attribute setting //
+	//==========================//
+	
+	/** Requires AbstractVertexAttribute to be bound */
+	@Override
+	public void setVertexAttribute(int bindingPoint, int attributeIndex, GlVertexPointer attribute)
+	{
+		TreeSet<Integer> intArray = this.bindingPointsToIndexBuilder.computeIfAbsent(bindingPoint, k -> new TreeSet<>());
+		intArray.add(attributeIndex);
+		
+		while (this.pointersBuilder.size() <= attributeIndex)
+		{
+			// This is dumb, but ArrayList doesn't have a resize, And this code
+			// should only be run when it's building the Vertex Attribute anyway.
+			this.pointersBuilder.add(null);
+		}
+		this.pointersBuilder.set(attributeIndex, attribute);
+	}
+	
+	
+	
+	//============//
+	// validation //
+	//============//
+	
+	/** Requires AbstractVertexAttribute to be bound */
+	@Override
+	public void completeAndCheck(int expectedStrideSize)
+	{
+		int maxBindPointNumber = this.bindingPointsToIndexBuilder.lastKey();
+		this.bindingPointsToIndex = new int[maxBindPointNumber + 1][];
+		
+		this.bindingPointsToIndexBuilder.forEach((Integer i, TreeSet<Integer> set) -> 
+		{
+			this.bindingPointsToIndex[i] = new int[set.size()];
+			Iterator<Integer> iter = set.iterator();
+			for (int j = 0; j < set.size(); j++)
+			{
+				this.bindingPointsToIndex[i][j] = iter.next();
+			}
+		});
+		
+		this.pointers = this.pointersBuilder.toArray(new GlVertexPointer[this.pointersBuilder.size()]);
+		this.pointersOffset = new int[this.pointers.length];
+		this.pointersBuilder = null; // Release the builder
+		this.bindingPointsToIndexBuilder = null; // Release the builder
+		
+		// Check if all pointers are valid
+		int currentOffset = 0;
+		for (int i = 0; i < this.pointers.length; i++)
+		{
+			GlVertexPointer pointer = this.pointers[i];
+			if (pointer == null)
+			{
+				LOGGER.warn("Vertex Attribute index " + i + " is not set! No index should be skipped normally!");
+				continue;
+			}
+			this.pointersOffset[i] = currentOffset;
+			currentOffset += pointer.byteSize;
+		}
+		
+		if (currentOffset != expectedStrideSize)
+		{
+			LOGGER.error("Vertex Attribute calculated stride size " + currentOffset +
+					" does not match the provided expected stride size " + expectedStrideSize + "!");
+			throw new IllegalArgumentException("Vertex Attribute Incorrect Format");
+		}
+		this.strideSize = currentOffset;
+		LOGGER.info("Vertex Attribute (pre GL43) completed.");
+		
+		// Debug logging
+		LOGGER.debug("AttributeIndex: ElementCount, glType, normalized, strideSize, offset");
+		
+		for (int i = 0; i < this.pointers.length; i++)
+		{
+			GlVertexPointer pointer = this.pointers[i];
+			if (pointer == null)
+			{
+				LOGGER.debug(i + ": Null!!!!");
+			}
+			else
+			{
+				LOGGER.debug(i + ": " + pointer.elementCount + ", " +
+						pointer.glType + ", " + pointer.normalized + ", " + this.strideSize + ", " + this.pointersOffset[i]);
+			}
+		}
+		
+	}
+	
+}

common/src/main/java/com/seibel/distanthorizons/common/render/openGl/glObject/vertexAttribute/GlVertexPointer.java

@@ -0,0 +1,72 @@
+/*
+ *    This file is part of the Distant Horizons mod
+ *    licensed under the GNU LGPL 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 Lesser 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 Lesser General Public License for more details.
+ *    
+ *    You should have received a copy of the GNU Lesser General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.seibel.distanthorizons.common.render.openGl.glObject.vertexAttribute;
+
+import com.seibel.distanthorizons.coreapi.util.MathUtil;
+import org.lwjgl.opengl.GL32;
+
+public final class GlVertexPointer
+{
+	public final int elementCount;
+	public final int glType;
+	public final boolean normalized;
+	public final int byteSize;
+	public final boolean useInteger;
+	
+	
+	
+	// basic constructors //
+	
+	public GlVertexPointer(int elementCount, int glType, boolean normalized, int byteSize, boolean useInteger)
+	{
+		this.elementCount = elementCount;
+		this.glType = glType;
+		this.normalized = normalized;
+		this.byteSize = byteSize;
+		this.useInteger = useInteger;
+	}
+	public GlVertexPointer(int elementCount, int glType, boolean normalized, int byteSize)
+	{
+		this(elementCount, glType, normalized, byteSize, false);
+	}
+	private static int _align(int bytes) { return MathUtil.ceilDiv(bytes, 4) * 4; }
+	
+	
+	
+	// named constructors //
+	
+	public static GlVertexPointer addFloatPointer(boolean normalized) { return new GlVertexPointer(1, GL32.GL_FLOAT, normalized, Float.BYTES); }
+	public static GlVertexPointer addVec2Pointer(boolean normalized) { return new GlVertexPointer(2, GL32.GL_FLOAT, normalized, Float.BYTES * 2); }
+	public static GlVertexPointer addVec3Pointer(boolean normalized) { return new GlVertexPointer(3, GL32.GL_FLOAT, normalized, Float.BYTES * 3); }
+	public static GlVertexPointer addVec4Pointer(boolean normalized) { return new GlVertexPointer(4, GL32.GL_FLOAT, normalized, Float.BYTES * 4); }
+	/** Always aligned to 4 bytes */
+	public static GlVertexPointer addUnsignedBytePointer(boolean normalized, boolean useInteger) { return new GlVertexPointer(1, GL32.GL_UNSIGNED_BYTE, normalized, 4, useInteger); }
+	/** aligned to 4 bytes */
+	public static GlVertexPointer addUnsignedBytesPointer(int elementCount, boolean normalized, boolean useInteger) 
+	{ return new GlVertexPointer(elementCount, GL32.GL_UNSIGNED_BYTE, normalized, _align(elementCount), useInteger); }
+	public static GlVertexPointer addUnsignedShortsPointer(int elementCount, boolean normalized, boolean useInteger) 
+	{ return new GlVertexPointer(elementCount, GL32.GL_UNSIGNED_SHORT, normalized, _align(elementCount * 2), useInteger); }
+	public static GlVertexPointer addShortsPointer(int elementCount, boolean normalized, boolean useInteger) { return new GlVertexPointer(elementCount, GL32.GL_SHORT, normalized, _align(elementCount * 2), useInteger); }
+	public static GlVertexPointer addIntPointer(boolean normalized, boolean useInteger) { return new GlVertexPointer(1, GL32.GL_INT, normalized, 4, useInteger); }
+	public static GlVertexPointer addIVec2Pointer(boolean normalized, boolean useInteger) { return new GlVertexPointer(2, GL32.GL_INT, normalized, 8, useInteger); }
+	public static GlVertexPointer addIVec3Pointer(boolean normalized, boolean useInteger) { return new GlVertexPointer(3, GL32.GL_INT, normalized, 12, useInteger); }
+	public static GlVertexPointer addIVec4Pointer(boolean normalized, boolean useInteger) { return new GlVertexPointer(4, GL32.GL_INT, normalized, 16, useInteger); }
+	
+}

common/src/main/java/com/seibel/distanthorizons/common/render/openGl/postProcessing/GlScreenQuad.java

@@ -0,0 +1,116 @@
+/*
+ *    This file is part of the Distant Horizons mod
+ *    licensed under the GNU LGPL 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 Lesser 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 Lesser General Public License for more details.
+ *
+ *    You should have received a copy of the GNU Lesser General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.seibel.distanthorizons.common.render.openGl.postProcessing;
+
+import com.seibel.distanthorizons.api.enums.config.EDhApiGpuUploadMethod;
+import com.seibel.distanthorizons.common.render.openGl.glObject.buffer.GLVertexBuffer;
+import com.seibel.distanthorizons.common.render.openGl.glObject.vertexAttribute.GlAbstractVertexAttribute;
+import com.seibel.distanthorizons.common.render.openGl.glObject.vertexAttribute.GlVertexPointer;
+import org.lwjgl.opengl.GL32;
+import org.lwjgl.system.MemoryUtil;
+
+import java.nio.ByteBuffer;
+
+/**
+ * Renders a full-screen textured quad to the screen. 
+ * Used in composite / deferred rendering (IE fog).
+ */
+public class GlScreenQuad
+{
+	public static GlScreenQuad INSTANCE = new GlScreenQuad();
+	
+	private static final float[] BOX_VERTICES = {
+			-1, -1,
+			1, -1,
+			1, 1,
+		
+			-1, -1,
+			1, 1,
+			-1, 1,
+	};
+	
+	private GLVertexBuffer boxBuffer;
+	private GlAbstractVertexAttribute va;
+	private boolean init = false;
+
+	
+	
+	//=============//
+	// constructor //
+	//=============//
+	//region
+	
+	private GlScreenQuad() { }
+	
+	public void init()
+	{
+		if (this.init) return;
+		this.init = true;
+		
+		this.va = GlAbstractVertexAttribute.create();
+		this.va.bind();
+		
+		// Pos
+		this.va.setVertexAttribute(0, 0, GlVertexPointer.addVec2Pointer(false));
+		this.va.completeAndCheck(Float.BYTES * 2);
+		
+		// Framebuffer
+		this.createBuffer();
+	}
+	private void createBuffer()
+	{
+		ByteBuffer buffer = MemoryUtil.memAlloc(BOX_VERTICES.length * Float.BYTES);
+		buffer.asFloatBuffer().put(BOX_VERTICES);
+		buffer.rewind();
+		
+		this.boxBuffer = new GLVertexBuffer(false);
+		this.boxBuffer.bind();
+		this.boxBuffer.uploadBuffer(buffer, BOX_VERTICES.length, EDhApiGpuUploadMethod.DATA, BOX_VERTICES.length * Float.BYTES);
+		MemoryUtil.memFree(buffer);
+	}
+	
+	//endregion
+	
+	
+	
+	//===========//
+	// rendering //
+	//===========//
+	//region
+	
+	public void render()
+	{
+		this.init();
+		
+		this.boxBuffer.bind();
+		
+		this.va.bind();
+		this.va.bindBufferToAllBindingPoints(this.boxBuffer.getId());
+		
+		GL32.glPolygonMode(GL32.GL_FRONT_AND_BACK, GL32.GL_FILL);
+		
+		GL32.glDrawArrays(GL32.GL_TRIANGLES, 0, 6);
+	}
+	
+	//endregion
+	
+	
+	
+}

common/src/main/java/com/seibel/distanthorizons/common/render/openGl/postProcessing/apply/GlDhApplyShader.java

@@ -0,0 +1,190 @@
+/*
+ *    This file is part of the Distant Horizons mod
+ *    licensed under the GNU LGPL 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 Lesser 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 Lesser General Public License for more details.
+ *
+ *    You should have received a copy of the GNU Lesser General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.seibel.distanthorizons.common.render.openGl.postProcessing.apply;
+
+import com.seibel.distanthorizons.common.render.openGl.GlDhMetaRenderer;
+import com.seibel.distanthorizons.common.render.openGl.glObject.GLState;
+import com.seibel.distanthorizons.common.render.openGl.glObject.shader.GlShaderProgram;
+import com.seibel.distanthorizons.common.render.openGl.postProcessing.GlScreenQuad;
+import com.seibel.distanthorizons.common.wrappers.minecraft.MinecraftGLWrapper;
+import com.seibel.distanthorizons.core.logging.DhLoggerBuilder;
+import com.seibel.distanthorizons.common.render.openGl.util.GlAbstractShaderRenderer;
+import com.seibel.distanthorizons.core.logging.DhLogger;
+import org.lwjgl.opengl.GL32;
+
+/**
+ * Copies {@link com.seibel.distanthorizons.core.render.renderer.LodRenderer}'s currently active color and depth texture to Minecraft's framebuffer. 
+ */
+public class GlDhApplyShader extends GlAbstractShaderRenderer
+{
+	public static GlDhApplyShader INSTANCE = new GlDhApplyShader();
+	
+	private static final DhLogger LOGGER = new DhLoggerBuilder().build();
+	private static final MinecraftGLWrapper GLMC = MinecraftGLWrapper.INSTANCE;
+	
+	
+	// uniforms
+	public int gDhColorTextureUniform;
+	public int gDepthMapUniform;
+	
+	
+	
+	//=======//
+ 	// setup //
+ 	//=======//
+	//region
+	
+	private GlDhApplyShader() { }
+	
+	@Override
+	public void onInit()
+	{
+		this.shader = new GlShaderProgram(
+			"assets/distanthorizons/shaders/shared/gl/quadApply.vert",
+			"assets/distanthorizons/shaders/shared/gl/apply.frag",
+			"vPosition"
+		);
+		
+		// uniform setup
+		this.gDhColorTextureUniform = this.shader.getUniformLocation("gDhColorTexture");
+		this.gDepthMapUniform = this.shader.getUniformLocation("gDhDepthTexture");
+		
+	}
+	
+	//endregion
+	
+	
+	
+	//========//
+	// render //
+	//========//
+	//region
+	
+	@Override
+	protected void onRender()
+	{
+		if (MC_RENDER.mcRendersToFrameBuffer())
+		{
+			this.renderToFrameBuffer();
+		}
+		else
+		{
+			this.renderToMcTexture();
+		}
+	}
+	private void renderToFrameBuffer()
+	{
+		int targetFrameBuffer = MC_RENDER.getTargetFramebuffer();
+		if (targetFrameBuffer == -1)
+		{
+			return;
+		}
+		
+		
+		try (GLState state = new GLState())
+		{
+			
+			GLMC.disableDepthTest();
+			
+			// blending isn't needed, we're manually merging the MC and DH textures
+			// Note: this prevents the sun/moon and stars from rendering through transparent LODs,
+			// however this also fixes transparent LODs from glowing when rendered against the sky during the day
+			GLMC.disableBlend();
+			
+			// old blending logic in case it's ever needed:
+			//GLMC.enableBlend();
+			//GL32.glBlendEquation(GL32.GL_FUNC_ADD);
+			//GLMC.glBlendFunc(GL32.GL_ONE, GL32.GL_ONE_MINUS_SRC_ALPHA);
+			
+			GLMC.glActiveTexture(GL32.GL_TEXTURE0);
+			GLMC.glBindTexture(GlDhMetaRenderer.INSTANCE.getActiveColorTextureId());
+			GL32.glUniform1i(this.gDhColorTextureUniform, 0);
+			
+			GLMC.glActiveTexture(GL32.GL_TEXTURE1);
+			GLMC.glBindTexture(GlDhMetaRenderer.INSTANCE.getActiveDepthTextureId());
+			GL32.glUniform1i(this.gDepthMapUniform, 1);
+			
+			// Copy to MC's framebuffer
+			GLMC.glBindFramebuffer(GL32.GL_FRAMEBUFFER, targetFrameBuffer);
+			
+			GlScreenQuad.INSTANCE.render();
+		}
+		// everything's been restored, except at this point the MC framebuffer should now be used instead
+		GLMC.glBindFramebuffer(GL32.GL_FRAMEBUFFER, targetFrameBuffer);
+		
+	}
+	private void renderToMcTexture()
+	{
+		int targetColorTextureId = MC_RENDER.getColorTextureId();
+		if (targetColorTextureId == -1)
+		{
+			return;
+		}
+		
+		int dhFrameBufferId = GlDhMetaRenderer.INSTANCE.getActiveFramebufferId();
+		if (dhFrameBufferId == -1)
+		{
+			return;
+		}
+		
+		int mcFrameBufferId = MC_RENDER.getTargetFramebuffer();
+		if (mcFrameBufferId == -1)
+		{
+			return;
+		}
+		
+		
+		
+		try (GLState state = new GLState())
+		{
+			GLMC.disableDepthTest();
+			
+			// blending isn't needed, we're just directly merging the MC and DH textures
+			// Note: this prevents the sun/moon and stars from rendering through transparent LODs,
+			// but it also resolves some other issues, so it's likely not an issue
+			GLMC.disableBlend();
+			
+			GLMC.glActiveTexture(GL32.GL_TEXTURE0);
+			GLMC.glBindTexture(GlDhMetaRenderer.INSTANCE.getActiveColorTextureId());
+			GL32.glUniform1i(this.gDhColorTextureUniform, 0);
+			
+			GLMC.glActiveTexture(GL32.GL_TEXTURE1);
+			GLMC.glBindTexture(GlDhMetaRenderer.INSTANCE.getActiveDepthTextureId());
+			GL32.glUniform1i(this.gDepthMapUniform, 1);
+			
+			
+			
+			GL32.glFramebufferTexture(GL32.GL_DRAW_FRAMEBUFFER, GL32.GL_COLOR_ATTACHMENT0, targetColorTextureId, 0);
+			
+			// Copy to MC's texture via MC's framebuffer
+			GLMC.glBindFramebuffer(GL32.GL_FRAMEBUFFER, dhFrameBufferId);
+			
+			GlScreenQuad.INSTANCE.render();
+		}
+		// everything's been restored, except at this point the MC framebuffer should now be used instead
+		GLMC.glBindFramebuffer(GL32.GL_FRAMEBUFFER, mcFrameBufferId);
+		
+	}
+	
+	//endregion
+	
+	
+	
+}

common/src/main/java/com/seibel/distanthorizons/common/render/openGl/postProcessing/fade/GlDhFarFadeApplyShader.java

@@ -0,0 +1,116 @@
+/*
+ *    This file is part of the Distant Horizons mod
+ *    licensed under the GNU LGPL 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 Lesser 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 Lesser General Public License for more details.
+ *
+ *    You should have received a copy of the GNU Lesser General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.seibel.distanthorizons.common.render.openGl.postProcessing.fade;
+
+import com.seibel.distanthorizons.common.render.openGl.glObject.shader.GlShaderProgram;
+import com.seibel.distanthorizons.common.render.openGl.postProcessing.GlScreenQuad;
+import com.seibel.distanthorizons.common.wrappers.minecraft.MinecraftGLWrapper;
+import com.seibel.distanthorizons.common.render.openGl.util.GlAbstractShaderRenderer;
+import com.seibel.distanthorizons.core.render.RenderParams;
+import org.lwjgl.opengl.GL32;
+
+/**
+ * Draws the Fade texture onto Minecraft's FrameBuffer. <br><br>
+ * 
+ * See Also: <br>
+ * {@link GlVanillaFadeRenderer} - Parent to this shader. <br>
+ * {@link GlDhVanillaFadeShader} - draws the Fade texture. <br>
+ */
+public class GlDhFarFadeApplyShader extends GlAbstractShaderRenderer
+{
+	public static GlDhFarFadeApplyShader INSTANCE = new GlDhFarFadeApplyShader();
+	
+	private static final MinecraftGLWrapper GLMC = MinecraftGLWrapper.INSTANCE;
+	
+	
+	
+	public int fadeTexture;
+	
+	public int readFramebuffer;
+	public int drawFramebuffer;
+	
+	// uniforms
+	public int uFadeColorTextureUniform = -1;
+	
+	
+	
+	//=============//
+	// constructor //
+	//=============//
+	
+	@Override
+	public void onInit()
+	{
+		this.shader = new GlShaderProgram(
+			"assets/distanthorizons/shaders/shared/gl/quadApply.vert",
+			"assets/distanthorizons/shaders/fade/gl/apply.frag",
+			"vPosition"
+		);
+		
+		// uniform setup
+		this.uFadeColorTextureUniform = this.shader.getUniformLocation("uFadeColorTextureUniform");
+		
+	}
+	
+	
+	
+	//=============//
+	// render prep //
+	//=============//
+	
+	@Override
+	protected void onApplyUniforms(RenderParams renderParams)
+	{
+		GLMC.glActiveTexture(GL32.GL_TEXTURE0);
+		GLMC.glBindTexture(this.fadeTexture);
+		GL32.glUniform1i(this.uFadeColorTextureUniform, 0);
+		
+	}
+	
+	
+	
+	//========//
+	// render //
+	//========//
+	
+	@Override
+	protected void onRender()
+	{
+		GLMC.disableBlend();
+		
+		// Depth testing must be disabled otherwise this application shader won't apply anything.
+		// setting this isn't necessary in vanilla, but some mods may change this, requiring it to be set manually, 
+		// it should be automatically restored after rendering is complete.
+		GLMC.disableDepthTest();
+		
+		
+		// apply the rendered Fade to Minecraft's framebuffer
+		GLMC.glBindFramebuffer(GL32.GL_READ_FRAMEBUFFER, this.readFramebuffer);
+		GLMC.glBindFramebuffer(GL32.GL_DRAW_FRAMEBUFFER, this.drawFramebuffer);
+		
+		GlScreenQuad.INSTANCE.render();
+		
+		GLMC.enableDepthTest();
+		
+	}
+	
+	
+	
+}

common/src/main/java/com/seibel/distanthorizons/common/render/openGl/postProcessing/fade/GlDhFarFadeRenderer.java

@@ -0,0 +1,165 @@
+/*
+ *    This file is part of the Distant Horizons mod
+ *    licensed under the GNU LGPL 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 Lesser 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 Lesser General Public License for more details.
+ *
+ *    You should have received a copy of the GNU Lesser General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.seibel.distanthorizons.common.render.openGl.postProcessing.fade;
+
+import com.seibel.distanthorizons.common.render.openGl.GlDhMetaRenderer;
+import com.seibel.distanthorizons.common.wrappers.minecraft.MinecraftGLWrapper;
+import com.seibel.distanthorizons.core.dependencyInjection.SingletonInjector;
+import com.seibel.distanthorizons.core.logging.DhLogger;
+import com.seibel.distanthorizons.core.logging.DhLoggerBuilder;
+import com.seibel.distanthorizons.core.render.RenderParams;
+import com.seibel.distanthorizons.core.wrapperInterfaces.minecraft.IMinecraftRenderWrapper;
+import com.seibel.distanthorizons.core.wrapperInterfaces.render.renderPass.IDhFarFadeRenderer;
+import org.lwjgl.opengl.GL32;
+import org.lwjgl.opengl.GL43C;
+
+import java.nio.ByteBuffer;
+
+/**
+ * Handles fading MC and DH together via {@link GlDhFarFadeShader} and {@link GlDhFarFadeApplyShader}. <br><br>
+ * 
+ * {@link GlDhFarFadeShader} - draws the Fade to a texture. <br>
+ * {@link GlDhFarFadeApplyShader} - draws the Fade texture to DH's framebuffer. <br>
+ */
+public class GlDhFarFadeRenderer implements IDhFarFadeRenderer
+{
+	
+	public static GlDhFarFadeRenderer INSTANCE = new GlDhFarFadeRenderer();
+	private static final DhLogger LOGGER = new DhLoggerBuilder().build();
+	
+	private static final IMinecraftRenderWrapper MC_RENDER = SingletonInjector.INSTANCE.get(IMinecraftRenderWrapper.class);
+	private static final MinecraftGLWrapper GLMC = MinecraftGLWrapper.INSTANCE;
+	
+	
+	private boolean init = false;
+	
+	private int width = -1;
+	private int height = -1;
+	private int fadeFramebuffer = -1;
+	
+	private int fadeTexture = -1;
+	
+	
+	
+	//=============//
+	// constructor //
+	//=============//
+	//region
+	
+	private GlDhFarFadeRenderer() { }
+	
+	public void init()
+	{
+		if (this.init) return;
+		this.init = true;
+		
+		GlDhFarFadeShader.INSTANCE.init();
+		GlDhFarFadeApplyShader.INSTANCE.init();
+	}
+	
+	private void createFramebuffer(int width, int height)
+	{
+		if (this.fadeFramebuffer != -1)
+		{
+			GL32.glDeleteFramebuffers(this.fadeFramebuffer);
+			this.fadeFramebuffer = -1;
+		}
+		
+		this.fadeFramebuffer = GL32.glGenFramebuffers();
+		GLMC.glBindFramebuffer(GL32.GL_FRAMEBUFFER, this.fadeFramebuffer);
+		
+		
+		if (this.fadeTexture != -1)
+		{
+			GLMC.glDeleteTextures(this.fadeTexture);
+			this.fadeTexture = -1;
+		}
+		
+		this.fadeTexture = GL32.glGenTextures();
+		{
+			GLMC.glBindTexture(this.fadeTexture);
+			GL32.glTexImage2D(GL32.GL_TEXTURE_2D, 0, GL32.GL_RGBA16, width, height, 0, GL32.GL_RGBA, GL32.GL_UNSIGNED_SHORT_4_4_4_4, (ByteBuffer) null);
+			GL32.glTexParameteri(GL32.GL_TEXTURE_2D, GL32.GL_TEXTURE_MIN_FILTER, GL32.GL_LINEAR);
+			GL32.glTexParameteri(GL32.GL_TEXTURE_2D, GL32.GL_TEXTURE_MAG_FILTER, GL32.GL_LINEAR);
+			
+			// disable mip-mapping since DH is just going to draw straight to the screen
+			GL43C.glTexParameteri(GL43C.GL_TEXTURE_2D, GL43C.GL_TEXTURE_BASE_LEVEL, 0);
+			GL43C.glTexParameteri(GL43C.GL_TEXTURE_2D, GL43C.GL_TEXTURE_MAX_LEVEL, 0);
+		}
+		
+		GL32.glFramebufferTexture2D(GL32.GL_FRAMEBUFFER, GL32.GL_COLOR_ATTACHMENT0, GL32.GL_TEXTURE_2D, this.fadeTexture, 0);
+		
+	}
+	
+	//endregion
+	
+	
+	
+	//========//
+	// render //
+	//========//
+	//region
+	
+	@Override 
+	public void render(RenderParams renderParams)
+	{
+		try
+		{
+			//profiler.push("Fade Generate");
+			
+			this.init();
+			
+			// resize the framebuffer if necessary
+			int width = MC_RENDER.getTargetFramebufferViewportWidth();
+			int height = MC_RENDER.getTargetFramebufferViewportHeight();
+			if (this.width != width || this.height != height)
+			{
+				this.width = width;
+				this.height = height;
+				this.createFramebuffer(width, height);
+			}
+			
+			
+			GlDhFarFadeShader.INSTANCE.frameBuffer = this.fadeFramebuffer;
+			GlDhFarFadeShader.INSTANCE.setProjectionMatrix(renderParams.mcModelViewMatrix, renderParams.mcProjectionMatrix);
+			GlDhFarFadeShader.INSTANCE.render(renderParams);
+			
+			//profiler.popPush("Fade Apply");
+			
+			GlDhFarFadeApplyShader.INSTANCE.fadeTexture = this.fadeTexture;
+			GlDhFarFadeApplyShader.INSTANCE.readFramebuffer = GlDhFarFadeShader.INSTANCE.frameBuffer;
+			GlDhFarFadeApplyShader.INSTANCE.drawFramebuffer = GlDhMetaRenderer.INSTANCE.getActiveFramebufferId();
+			GlDhFarFadeApplyShader.INSTANCE.render(renderParams);
+		}
+		catch (Exception e)
+		{
+			LOGGER.error("Unexpected error during fade render, error: ["+e.getMessage()+"].", e);
+		}
+		finally
+		{
+			//profiler.pop();
+		}
+	}
+	
+	//emdregion
+	
+	
+	
+}

common/src/main/java/com/seibel/distanthorizons/common/render/openGl/postProcessing/fade/GlDhFarFadeShader.java

@@ -0,0 +1,167 @@
+/*
+ *    This file is part of the Distant Horizons mod
+ *    licensed under the GNU LGPL 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 Lesser 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 Lesser General Public License for more details.
+ *
+ *    You should have received a copy of the GNU Lesser General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.seibel.distanthorizons.common.render.openGl.postProcessing.fade;
+
+import com.seibel.distanthorizons.api.objects.math.DhApiMat4f;
+import com.seibel.distanthorizons.common.render.openGl.GlDhMetaRenderer;
+import com.seibel.distanthorizons.common.render.openGl.glObject.shader.GlShaderProgram;
+import com.seibel.distanthorizons.common.render.openGl.postProcessing.GlScreenQuad;
+import com.seibel.distanthorizons.common.wrappers.minecraft.MinecraftGLWrapper;
+import com.seibel.distanthorizons.core.dependencyInjection.SingletonInjector;
+import com.seibel.distanthorizons.common.render.openGl.util.GlAbstractShaderRenderer;
+import com.seibel.distanthorizons.core.render.RenderParams;
+import com.seibel.distanthorizons.core.util.RenderUtil;
+import com.seibel.distanthorizons.core.util.math.Mat4f;
+import com.seibel.distanthorizons.core.wrapperInterfaces.minecraft.IMinecraftRenderWrapper;
+import org.lwjgl.opengl.GL32;
+
+public class GlDhFarFadeShader extends GlAbstractShaderRenderer
+{
+	public static GlDhFarFadeShader INSTANCE = new GlDhFarFadeShader();
+	
+	private static final IMinecraftRenderWrapper MC_RENDER = SingletonInjector.INSTANCE.get(IMinecraftRenderWrapper.class);
+	private static final MinecraftGLWrapper GLMC = MinecraftGLWrapper.INSTANCE;
+	
+	
+	public int frameBuffer = -1;
+	
+	private Mat4f inverseDhMvmProjMatrix;
+	
+	
+	// Uniforms
+	
+	/** Inverted Model View Projection matrix */
+	public int uDhInvMvmProj = -1;
+	
+	public int uDhDepthTexture = -1;
+	public int uMcColorTexture = -1;
+	public int uDhColorTexture = -1;
+	
+	public int uStartFadeBlockDistance = -1;
+	public int uEndFadeBlockDistance = -1;
+	
+	
+	
+	//=============//
+	// constructor //
+	//=============//
+	
+	public GlDhFarFadeShader() {  }
+
+	@Override
+	public void onInit()
+	{
+		this.shader = new GlShaderProgram(
+			"assets/distanthorizons/shaders/shared/gl/quadApply.vert",
+			"assets/distanthorizons/shaders/fade/gl/dhFade.frag",
+			"vPosition"
+		);
+		
+		// all uniforms should be tryGet...
+		// because disabling fade can cause the GLSL to optimize out most (if not all) uniforms
+		
+		// near fade
+		this.uDhInvMvmProj = this.shader.tryGetUniformLocation("uDhInvMvmProj");
+		
+		this.uDhDepthTexture = this.shader.tryGetUniformLocation("uDhDepthTexture");
+		this.uMcColorTexture = this.shader.tryGetUniformLocation("uMcColorTexture");
+		this.uDhColorTexture = this.shader.tryGetUniformLocation("uDhColorTexture");
+		
+		this.uStartFadeBlockDistance = this.shader.tryGetUniformLocation("uStartFadeBlockDistance");
+		this.uEndFadeBlockDistance = this.shader.tryGetUniformLocation("uEndFadeBlockDistance");
+		
+	}
+	
+	
+	
+	//=============//
+	// render prep //
+	//=============//
+	
+	@Override
+	protected void onApplyUniforms(RenderParams renderParams)
+	{
+		this.shader.setUniform(this.uDhInvMvmProj, this.inverseDhMvmProjMatrix);
+		
+		
+		float dhFarClipDistance = RenderUtil.getFarClipPlaneDistanceInBlocks();
+		float fadeStartDistance = dhFarClipDistance * 0.5f;
+		float fadeEndDistance = dhFarClipDistance * 0.9f;
+		
+		this.shader.setUniform(this.uStartFadeBlockDistance, fadeStartDistance);
+		this.shader.setUniform(this.uEndFadeBlockDistance, fadeEndDistance);
+		
+	}
+	
+	public void setProjectionMatrix(DhApiMat4f mcModelViewMatrix, DhApiMat4f mcProjectionMatrix)
+	{
+		Mat4f dhProjectionMatrix = RenderUtil.createLodProjectionMatrix(mcProjectionMatrix);
+		Mat4f dhModelViewMatrix = RenderUtil.createLodModelViewMatrix(mcModelViewMatrix);
+		
+		Mat4f inverseDhModelViewProjectionMatrix = new Mat4f(dhProjectionMatrix);
+		inverseDhModelViewProjectionMatrix.multiply(dhModelViewMatrix);
+		inverseDhModelViewProjectionMatrix.invert();
+		this.inverseDhMvmProjMatrix = inverseDhModelViewProjectionMatrix;
+	}
+	
+	
+	//========//
+	// render //
+	//========//
+	
+	@Override
+	protected void onRender()
+	{
+		int depthTextureId = GlDhMetaRenderer.INSTANCE.getActiveDepthTextureId();
+		int colorTextureId = GlDhMetaRenderer.INSTANCE.getActiveColorTextureId();
+		
+		if (depthTextureId == -1
+			|| colorTextureId == -1)
+		{
+			// the renderer is currently being re-built and/or inactive,
+			// we don't need to/can't render fading
+			return;
+		}
+		
+		
+		
+		GLMC.glBindFramebuffer(GL32.GL_FRAMEBUFFER, this.frameBuffer);
+		GLMC.disableScissorTest();
+		GLMC.disableDepthTest();
+		GLMC.disableBlend();
+		
+		
+		GLMC.glActiveTexture(GL32.GL_TEXTURE0);
+		GLMC.glBindTexture(depthTextureId);
+		GL32.glUniform1i(this.uDhDepthTexture, 0);
+		
+		GLMC.glActiveTexture(GL32.GL_TEXTURE1);
+		GLMC.glBindTexture(MC_RENDER.getColorTextureId());
+		GL32.glUniform1i(this.uMcColorTexture, 1);
+		
+		GLMC.glActiveTexture(GL32.GL_TEXTURE2);
+		GLMC.glBindTexture(colorTextureId);
+		GL32.glUniform1i(this.uDhColorTexture, 2);
+		
+		
+		GlScreenQuad.INSTANCE.render();
+	}
+	
+}

common/src/main/java/com/seibel/distanthorizons/common/render/openGl/postProcessing/fade/GlDhVanillaFadeShader.java

@@ -0,0 +1,211 @@
+/*
+ *    This file is part of the Distant Horizons mod
+ *    licensed under the GNU LGPL 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 Lesser 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 Lesser General Public License for more details.
+ *
+ *    You should have received a copy of the GNU Lesser General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.seibel.distanthorizons.common.render.openGl.postProcessing.fade;
+
+import com.seibel.distanthorizons.api.objects.math.DhApiMat4f;
+import com.seibel.distanthorizons.common.render.openGl.GlDhMetaRenderer;
+import com.seibel.distanthorizons.common.render.openGl.glObject.shader.GlShaderProgram;
+import com.seibel.distanthorizons.common.render.openGl.postProcessing.GlScreenQuad;
+import com.seibel.distanthorizons.common.wrappers.minecraft.MinecraftGLWrapper;
+import com.seibel.distanthorizons.core.config.Config;
+import com.seibel.distanthorizons.core.dependencyInjection.SingletonInjector;
+import com.seibel.distanthorizons.common.render.openGl.util.GlAbstractShaderRenderer;
+import com.seibel.distanthorizons.core.render.RenderParams;
+import com.seibel.distanthorizons.core.util.RenderUtil;
+import com.seibel.distanthorizons.core.util.math.Mat4f;
+import com.seibel.distanthorizons.core.wrapperInterfaces.minecraft.IMinecraftRenderWrapper;
+import org.lwjgl.opengl.GL32;
+
+public class GlDhVanillaFadeShader extends GlAbstractShaderRenderer 
+{
+	public static GlDhVanillaFadeShader INSTANCE = new GlDhVanillaFadeShader();
+	
+	private static final IMinecraftRenderWrapper MC_RENDER = SingletonInjector.INSTANCE.get(IMinecraftRenderWrapper.class);
+	private static final MinecraftGLWrapper GLMC = MinecraftGLWrapper.INSTANCE;
+	
+	
+	public int frameBuffer = -1;
+	
+	private Mat4f inverseMcMvmProjMatrix;
+	private Mat4f inverseDhMvmProjMatrix;
+	private float levelMaxHeight;
+	
+	
+	// Uniforms
+	public int uMcDepthTexture = -1;
+	public int uDhDepthTexture = -1;
+	public int uCombinedMcDhColorTexture = -1;
+	public int uDhColorTexture = -1;
+	
+	/** Inverted Model View Projection matrix */
+	public int uDhInvMvmProj = -1;
+	public int uMcInvMvmProj = -1;
+	
+	public int uStartFadeBlockDistance = -1;
+	public int uEndFadeBlockDistance = -1;
+	public int uMaxLevelHeight = -1;
+	
+	public int uOnlyRenderLods = -1;
+	
+	
+	
+	//=============//
+	// constructor //
+	//=============//
+	//region
+	
+	public GlDhVanillaFadeShader() {  }
+
+	@Override
+	public void onInit()
+	{
+		this.shader = new GlShaderProgram(
+			"assets/distanthorizons/shaders/shared/gl/quadApply.vert",
+			"assets/distanthorizons/shaders/fade/gl/vanillaFade.frag",
+			"vPosition"
+		);
+		
+		// all uniforms should be tryGet...
+		// because disabling fade can cause the GLSL to optimize out most (if not all) uniforms
+		
+		// near fade
+		this.uDhInvMvmProj = this.shader.tryGetUniformLocation("uDhInvMvmProj");
+		this.uMcInvMvmProj = this.shader.tryGetUniformLocation("uMcInvMvmProj");
+		
+		this.uMcDepthTexture = this.shader.tryGetUniformLocation("uMcDepthTexture");
+		this.uDhDepthTexture = this.shader.tryGetUniformLocation("uDhDepthTexture");
+		this.uCombinedMcDhColorTexture = this.shader.tryGetUniformLocation("uCombinedMcDhColorTexture");
+		this.uDhColorTexture = this.shader.tryGetUniformLocation("uDhColorTexture");
+		
+		this.uStartFadeBlockDistance = this.shader.tryGetUniformLocation("uStartFadeBlockDistance");
+		this.uEndFadeBlockDistance = this.shader.tryGetUniformLocation("uEndFadeBlockDistance");
+		this.uMaxLevelHeight = this.shader.tryGetUniformLocation("uMaxLevelHeight");
+		
+		this.uOnlyRenderLods = this.shader.tryGetUniformLocation("uOnlyRenderLods");
+		
+	}
+	
+	//endregion
+	
+	
+	
+	//=============//
+	// render prep //
+	//=============//
+	//region
+	
+	@Override
+	protected void onApplyUniforms(RenderParams renderParams)
+	{
+		this.shader.setUniform(this.uMcInvMvmProj, this.inverseMcMvmProjMatrix);
+		this.shader.setUniform(this.uDhInvMvmProj, this.inverseDhMvmProjMatrix);
+		
+		
+		float dhNearClipDistance = RenderUtil.getNearClipPlaneInBlocks();
+		// this added value prevents the near clip plane and discard circle from touching, which looks bad
+		dhNearClipDistance += 16f;
+		
+		// measured in blocks
+		// these multipliers in James' tests should provide a fairly smooth transition
+		// without having underdraw issues
+		float fadeStartDistance = dhNearClipDistance * 1.5f;
+		float fadeEndDistance = dhNearClipDistance * 1.9f;
+		
+		this.shader.setUniform(this.uStartFadeBlockDistance, fadeStartDistance);
+		this.shader.setUniform(this.uEndFadeBlockDistance, fadeEndDistance);
+		
+		this.shader.setUniform(this.uMaxLevelHeight, this.levelMaxHeight);
+		
+		this.shader.setUniform(this.uOnlyRenderLods, Config.Client.Advanced.Debugging.lodOnlyMode.get());
+	}
+	
+	public void setProjectionMatrix(DhApiMat4f mcModelViewMatrix, DhApiMat4f mcProjectionMatrix)
+	{
+		Mat4f inverseMcModelViewProjectionMatrix = new Mat4f(mcProjectionMatrix);
+		inverseMcModelViewProjectionMatrix.multiply(mcModelViewMatrix);
+		inverseMcModelViewProjectionMatrix.invert();
+		this.inverseMcMvmProjMatrix = inverseMcModelViewProjectionMatrix;
+		
+		
+		Mat4f dhProjectionMatrix = RenderUtil.createLodProjectionMatrix(mcProjectionMatrix);
+		Mat4f dhModelViewMatrix = RenderUtil.createLodModelViewMatrix(mcModelViewMatrix);
+		
+		Mat4f inverseDhModelViewProjectionMatrix = new Mat4f(dhProjectionMatrix);
+		inverseDhModelViewProjectionMatrix.multiply(dhModelViewMatrix);
+		inverseDhModelViewProjectionMatrix.invert();
+		this.inverseDhMvmProjMatrix = inverseDhModelViewProjectionMatrix;
+	}
+	public void setLevelMaxHeight(int levelMaxHeight) { this.levelMaxHeight = levelMaxHeight; }
+	
+	//endregion
+	
+	
+	
+	//========//
+	// render //
+	//========//
+	//region
+	
+	@Override
+	protected void onRender()
+	{
+		int depthTextureId = GlDhMetaRenderer.INSTANCE.getActiveDepthTextureId();
+		int colorTextureId = GlDhMetaRenderer.INSTANCE.getActiveColorTextureId();
+		
+		if (depthTextureId == -1
+			|| colorTextureId == -1)
+		{
+			// the renderer is currently being re-built and/or inactive,
+			// we don't need to/can't render fading
+			return;
+		}
+		
+		
+		
+		GLMC.glBindFramebuffer(GL32.GL_FRAMEBUFFER, this.frameBuffer);
+		GLMC.disableScissorTest();
+		GLMC.disableDepthTest();
+		GLMC.disableBlend();
+		
+		GLMC.glActiveTexture(GL32.GL_TEXTURE0);
+		GLMC.glBindTexture(MC_RENDER.getDepthTextureId());
+		GL32.glUniform1i(this.uMcDepthTexture, 0);
+		
+		GLMC.glActiveTexture(GL32.GL_TEXTURE1);
+		GLMC.glBindTexture(depthTextureId);
+		GL32.glUniform1i(this.uDhDepthTexture, 1);
+		
+		GLMC.glActiveTexture(GL32.GL_TEXTURE2);
+		GLMC.glBindTexture(MC_RENDER.getColorTextureId());
+		GL32.glUniform1i(this.uCombinedMcDhColorTexture, 2);
+		
+		GLMC.glActiveTexture(GL32.GL_TEXTURE3);
+		GLMC.glBindTexture(colorTextureId);
+		GL32.glUniform1i(this.uDhColorTexture, 3);
+		
+		
+		GlScreenQuad.INSTANCE.render();
+	}
+	
+	//endregion
+	
+	
+	
+}

common/src/main/java/com/seibel/distanthorizons/common/render/openGl/postProcessing/fade/GlVanillaFadeRenderer.java

@@ -0,0 +1,203 @@
+/*
+ *    This file is part of the Distant Horizons mod
+ *    licensed under the GNU LGPL 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 Lesser 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 Lesser General Public License for more details.
+ *
+ *    You should have received a copy of the GNU Lesser General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.seibel.distanthorizons.common.render.openGl.postProcessing.fade;
+
+import com.seibel.distanthorizons.common.render.openGl.GlDhMetaRenderer;
+import com.seibel.distanthorizons.common.render.openGl.glObject.GLState;
+import com.seibel.distanthorizons.common.wrappers.minecraft.MinecraftGLWrapper;
+import com.seibel.distanthorizons.core.dependencyInjection.SingletonInjector;
+import com.seibel.distanthorizons.core.logging.DhLoggerBuilder;
+import com.seibel.distanthorizons.core.render.RenderParams;
+import com.seibel.distanthorizons.core.wrapperInterfaces.minecraft.IMinecraftClientWrapper;
+import com.seibel.distanthorizons.core.wrapperInterfaces.minecraft.IMinecraftRenderWrapper;
+import com.seibel.distanthorizons.core.wrapperInterfaces.minecraft.IProfilerWrapper;
+import com.seibel.distanthorizons.core.wrapperInterfaces.render.renderPass.IDhVanillaFadeRenderer;
+import com.seibel.distanthorizons.core.logging.DhLogger;
+import org.lwjgl.opengl.GL32;
+
+import java.nio.ByteBuffer;
+
+/**
+ * Handles fading MC and DH together via {@link GlDhVanillaFadeShader} and {@link GlDhFarFadeApplyShader}. <br><br>
+ * 
+ * {@link GlDhVanillaFadeShader} - draws the Fade to a texture. <br>
+ * {@link GlDhFarFadeApplyShader} - draws the Fade texture to MC's FrameBuffer. <br>
+ */
+public class GlVanillaFadeRenderer implements IDhVanillaFadeRenderer
+{
+	public static GlVanillaFadeRenderer INSTANCE = new GlVanillaFadeRenderer();
+	
+	private static final DhLogger LOGGER = new DhLoggerBuilder().build();
+	
+	private static final IMinecraftClientWrapper MC_CLIENT = SingletonInjector.INSTANCE.get(IMinecraftClientWrapper.class);
+	private static final IMinecraftRenderWrapper MC_RENDER = SingletonInjector.INSTANCE.get(IMinecraftRenderWrapper.class);
+	private static final MinecraftGLWrapper GLMC = MinecraftGLWrapper.INSTANCE;
+	
+	
+	private boolean init = false;
+	
+	private int width = -1;
+	private int height = -1;
+	private int fadeFramebuffer = -1;
+	
+	private int fadeTexture = -1;
+	
+	
+	
+	//=============//
+	// constructor //
+	//=============//
+	//region
+	
+	private GlVanillaFadeRenderer() { }
+	
+	public void init()
+	{
+		if (this.init) return;
+		this.init = true;
+		
+		GlDhVanillaFadeShader.INSTANCE.init();
+		GlDhFarFadeApplyShader.INSTANCE.init();
+	}
+	
+	private void createFramebuffer(int width, int height)
+	{
+		if (this.fadeFramebuffer != -1)
+		{
+			GL32.glDeleteFramebuffers(this.fadeFramebuffer);
+			this.fadeFramebuffer = -1;
+		}
+		
+		this.fadeFramebuffer = GL32.glGenFramebuffers();
+		GLMC.glBindFramebuffer(GL32.GL_FRAMEBUFFER, this.fadeFramebuffer);
+		
+		
+		// Applying the fade texture is only needed if MC is drawing to their own frame buffer,
+		// otherwise we can directly render to their texture
+		if (MC_RENDER.mcRendersToFrameBuffer())
+		{
+			if (this.fadeTexture != -1)
+			{
+				GLMC.glDeleteTextures(this.fadeTexture);
+				this.fadeTexture = -1;
+			}
+			
+			this.fadeTexture = GL32.glGenTextures();
+			GLMC.glBindTexture(this.fadeTexture);
+			GL32.glTexImage2D(GL32.GL_TEXTURE_2D, 0, GL32.GL_RGBA16, width, height, 0, GL32.GL_RGBA, GL32.GL_UNSIGNED_SHORT_4_4_4_4, (ByteBuffer) null);
+			GL32.glTexParameteri(GL32.GL_TEXTURE_2D, GL32.GL_TEXTURE_MIN_FILTER, GL32.GL_LINEAR);
+			GL32.glTexParameteri(GL32.GL_TEXTURE_2D, GL32.GL_TEXTURE_MAG_FILTER, GL32.GL_LINEAR);
+			GL32.glFramebufferTexture2D(GL32.GL_FRAMEBUFFER, GL32.GL_COLOR_ATTACHMENT0, GL32.GL_TEXTURE_2D, this.fadeTexture, 0);
+		}
+		else
+		{
+			GL32.glFramebufferTexture2D(GL32.GL_FRAMEBUFFER, GL32.GL_COLOR_ATTACHMENT0, GL32.GL_TEXTURE_2D, MC_RENDER.getColorTextureId(), 0);
+		}
+	}
+	
+	//endregion
+	
+	
+	
+	//========//
+	// render //
+	//========//
+	//region
+	
+	@Override
+	public void render(RenderParams renderParams)
+	{
+		int depthTextureId = GlDhMetaRenderer.INSTANCE.getActiveDepthTextureId();
+		if (depthTextureId == -1)
+		{
+			// the renderer hasn't been set up yet
+			// trying to render fading may cause GL errors
+			return;
+		}
+		
+		
+		
+		IProfilerWrapper profiler = MC_CLIENT.getProfiler();
+		profiler.pop(); // get out of "terrain"
+		profiler.push("DH-Vanilla Fade");
+		
+		
+		try(GLState mcState = new GLState())
+		{
+			profiler.push("Vanilla Fade Generate");
+			
+			this.init();
+			
+			// resize the framebuffer if necessary
+			int width = MC_RENDER.getTargetFramebufferViewportWidth();
+			int height = MC_RENDER.getTargetFramebufferViewportHeight();
+			if (this.width != width || this.height != height)
+			{
+				this.width = width;
+				this.height = height;
+				this.createFramebuffer(width, height);
+			}
+			
+			
+			GlDhVanillaFadeShader.INSTANCE.frameBuffer = this.fadeFramebuffer;
+			GlDhVanillaFadeShader.INSTANCE.setProjectionMatrix(renderParams.mcModelViewMatrix, renderParams.mcProjectionMatrix);
+			GlDhVanillaFadeShader.INSTANCE.setLevelMaxHeight(renderParams.clientLevelWrapper.getMaxHeight());
+			GlDhVanillaFadeShader.INSTANCE.render(renderParams);
+			
+			// Applying the fade texture is only needed if MC is drawing to their own frame buffer,
+			// otherwise we can directly render to their texture
+			if (MC_RENDER.mcRendersToFrameBuffer())
+			{
+				profiler.popPush("Vanilla Fade Apply");
+				
+				GlDhFarFadeApplyShader.INSTANCE.fadeTexture = this.fadeTexture;
+				GlDhFarFadeApplyShader.INSTANCE.readFramebuffer = GlDhFarFadeShader.INSTANCE.frameBuffer;
+				GlDhFarFadeApplyShader.INSTANCE.drawFramebuffer = MC_RENDER.getTargetFramebuffer();
+				GlDhFarFadeApplyShader.INSTANCE.render(renderParams);
+			}
+			
+			profiler.pop(); 
+		}
+		catch (Exception e)
+		{
+			LOGGER.error("Unexpected error during fade render, error: ["+e.getMessage()+"].", e);
+		}
+	}
+	
+	//endregion
+	
+	
+	
+	//================//
+	// base overrides // 
+	//================//
+	//region
+	
+	public void free()
+	{
+		GlDhVanillaFadeShader.INSTANCE.free();
+		GlDhFarFadeApplyShader.INSTANCE.free();
+	}
+	
+	//endregion
+	
+	
+	
+}

common/src/main/java/com/seibel/distanthorizons/common/render/openGl/postProcessing/fog/GlDhFogApplyShader.java

@@ -0,0 +1,118 @@
+/*
+ *    This file is part of the Distant Horizons mod
+ *    licensed under the GNU LGPL 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 Lesser 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 Lesser General Public License for more details.
+ *
+ *    You should have received a copy of the GNU Lesser General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.seibel.distanthorizons.common.render.openGl.postProcessing.fog;
+
+import com.seibel.distanthorizons.common.render.openGl.GlDhMetaRenderer;
+import com.seibel.distanthorizons.common.render.openGl.glObject.shader.GlShaderProgram;
+import com.seibel.distanthorizons.common.render.openGl.postProcessing.GlScreenQuad;
+import com.seibel.distanthorizons.common.wrappers.minecraft.MinecraftGLWrapper;
+import com.seibel.distanthorizons.common.render.openGl.util.GlAbstractShaderRenderer;
+import com.seibel.distanthorizons.core.render.RenderParams;
+import org.lwjgl.opengl.GL32;
+
+/**
+ * Draws the Fog texture onto DH's FrameBuffer. <br><br>
+ * 
+ * See Also: <br>
+ * {@link GlDhFogRenderer} - Parent to this shader. <br>
+ * {@link GlDhFogShader} - draws the Fog texture. <br>
+ */
+public class GlDhFogApplyShader extends GlAbstractShaderRenderer
+{
+	public static GlDhFogApplyShader INSTANCE = new GlDhFogApplyShader();
+	
+	private static final MinecraftGLWrapper GLMC = MinecraftGLWrapper.INSTANCE;
+	
+	
+	public int fogTexture;
+	
+	// uniforms
+	public int colorTextureUniform;
+	public int depthTextureUniform;
+	
+	
+	
+	//=============//
+	// constructor //
+	//=============//
+	
+	@Override
+	public void onInit()
+	{
+		this.shader = new GlShaderProgram(
+			"assets/distanthorizons/shaders/shared/gl/quadApply.vert",
+			"assets/distanthorizons/shaders/fog/gl/apply.frag",
+			"vPosition"
+		);
+		
+		// uniform setup
+		this.colorTextureUniform = this.shader.getUniformLocation("uColorTexture");
+		this.depthTextureUniform = this.shader.getUniformLocation("uDepthTexture");
+		
+	}
+	
+	
+	
+	//=============//
+	// render prep //
+	//=============//
+	
+	@Override
+	protected void onApplyUniforms(RenderParams renderParams)
+	{
+		GLMC.glActiveTexture(GL32.GL_TEXTURE0);
+		GLMC.glBindTexture(this.fogTexture);
+		GL32.glUniform1i(this.colorTextureUniform, 0);
+		
+		GLMC.glActiveTexture(GL32.GL_TEXTURE1);
+		GLMC.glBindTexture(GlDhMetaRenderer.INSTANCE.getActiveDepthTextureId());
+		GL32.glUniform1i(this.depthTextureUniform, 1);
+		
+	}
+	
+	
+	
+	//========//
+	// render //
+	//========//
+	
+	@Override
+	protected void onRender()
+	{
+		GLMC.enableBlend();
+		GL32.glBlendEquation(GL32.GL_FUNC_ADD);
+		GLMC.glBlendFuncSeparate(GL32.GL_SRC_ALPHA, GL32.GL_ONE_MINUS_SRC_ALPHA, GL32.GL_ONE, GL32.GL_ONE_MINUS_SRC_ALPHA);
+		
+		// Depth testing must be disabled otherwise this application shader won't apply anything.
+		// setting this isn't necessary in vanilla, but some mods may change this, requiring it to be set manually, 
+		// it should be automatically restored after rendering is complete.
+		GLMC.disableDepthTest();
+		
+		
+		// apply the rendered Fog to DH's framebuffer
+		GLMC.glBindFramebuffer(GL32.GL_READ_FRAMEBUFFER, GlDhFogShader.INSTANCE.frameBuffer);
+		GLMC.glBindFramebuffer(GL32.GL_DRAW_FRAMEBUFFER, GlDhMetaRenderer.INSTANCE.getActiveFramebufferId());
+		
+		GlScreenQuad.INSTANCE.render();
+		
+		GLMC.glBindFramebuffer(GL32.GL_READ_FRAMEBUFFER, 0);
+	}
+	
+}

common/src/main/java/com/seibel/distanthorizons/common/render/openGl/postProcessing/fog/GlDhFogRenderer.java

@@ -0,0 +1,156 @@
+/*
+ *    This file is part of the Distant Horizons mod
+ *    licensed under the GNU LGPL 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 Lesser 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 Lesser General Public License for more details.
+ *
+ *    You should have received a copy of the GNU Lesser General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.seibel.distanthorizons.common.render.openGl.postProcessing.fog;
+
+import com.seibel.distanthorizons.common.render.openGl.glObject.GLState;
+import com.seibel.distanthorizons.common.wrappers.minecraft.MinecraftGLWrapper;
+import com.seibel.distanthorizons.core.dependencyInjection.SingletonInjector;
+import com.seibel.distanthorizons.core.render.RenderParams;
+import com.seibel.distanthorizons.core.wrapperInterfaces.minecraft.IMinecraftRenderWrapper;
+import com.seibel.distanthorizons.core.wrapperInterfaces.render.renderPass.IDhFogRenderer;
+import org.lwjgl.opengl.GL32;
+import org.lwjgl.opengl.GL43C;
+
+import java.nio.ByteBuffer;
+
+/**
+ * Handles adding SSAO via {@link GlDhFogShader} and {@link GlDhFogApplyShader}. <br><br>
+ * 
+ * {@link GlDhFogShader} - draws the Fog to a texture. <br>
+ * {@link GlDhFogApplyShader} - draws the Fog texture to DH's FrameBuffer. <br>
+ */
+public class GlDhFogRenderer implements IDhFogRenderer
+{
+	public static GlDhFogRenderer INSTANCE = new GlDhFogRenderer();
+	
+	private static final IMinecraftRenderWrapper MC_RENDER = SingletonInjector.INSTANCE.get(IMinecraftRenderWrapper.class);
+	private static final MinecraftGLWrapper GLMC = MinecraftGLWrapper.INSTANCE;
+	
+	
+	private boolean init = false;
+	
+	private int width = -1;
+	private int height = -1;
+	private int fogFramebuffer = -1;
+	
+	private int fogTexture = -1;
+	
+	
+	
+	//=============//
+	// constructor //
+	//=============//
+	
+	private GlDhFogRenderer() { }
+	
+	public void init()
+	{
+		if (this.init) return;
+		this.init = true;
+		
+		GlDhFogShader.INSTANCE.init();
+		GlDhFogApplyShader.INSTANCE.init();
+	}
+	
+	private void createFramebuffer(int width, int height)
+	{
+		if (this.fogFramebuffer != -1)
+		{
+			GL32.glDeleteFramebuffers(this.fogFramebuffer);
+			this.fogFramebuffer = -1;
+		}
+		
+		if (this.fogTexture != -1)
+		{
+			GLMC.glDeleteTextures(this.fogTexture);
+			this.fogTexture = -1;
+		}
+		
+		this.fogFramebuffer = GL32.glGenFramebuffers();
+		GLMC.glBindFramebuffer(GL32.GL_FRAMEBUFFER, this.fogFramebuffer);
+		
+		this.fogTexture = GLMC.glGenTextures();
+		{
+			GLMC.glBindTexture(this.fogTexture);
+			GL32.glTexImage2D(GL32.GL_TEXTURE_2D, 0, GL32.GL_RGBA16, width, height, 0, GL32.GL_RGBA, GL32.GL_UNSIGNED_SHORT_4_4_4_4, (ByteBuffer) null);
+			GL32.glTexParameteri(GL32.GL_TEXTURE_2D, GL32.GL_TEXTURE_MIN_FILTER, GL32.GL_LINEAR);
+			GL32.glTexParameteri(GL32.GL_TEXTURE_2D, GL32.GL_TEXTURE_MAG_FILTER, GL32.GL_LINEAR);
+			GL32.glFramebufferTexture2D(GL32.GL_FRAMEBUFFER, GL32.GL_COLOR_ATTACHMENT0, GL32.GL_TEXTURE_2D, this.fogTexture, 0);
+			
+			// disable mip-mapping since DH is just going to draw straight to the screen
+			GL43C.glTexParameteri(GL43C.GL_TEXTURE_2D, GL43C.GL_TEXTURE_BASE_LEVEL, 0);
+			GL43C.glTexParameteri(GL43C.GL_TEXTURE_2D, GL43C.GL_TEXTURE_MAX_LEVEL, 0);
+		}
+	}
+	
+	
+	
+	//========//
+	// render //
+	//========//
+	//region
+	
+	@Override
+	public void render(RenderParams renderParams)
+	{
+		// GLState needed in MC 1.16.5 probably due to MC not manually setting each GL state they need before the next rendering step
+		try (GLState state = new GLState())
+		{
+			this.init();
+			
+			// resize the framebuffer if necessary
+			int width = MC_RENDER.getTargetFramebufferViewportWidth();
+			int height = MC_RENDER.getTargetFramebufferViewportHeight();
+			if (this.width != width || this.height != height)
+			{
+				this.width = width;
+				this.height = height;
+				this.createFramebuffer(width, height);
+			}
+			
+			GlDhFogShader.INSTANCE.frameBuffer = this.fogFramebuffer;
+			GlDhFogShader.INSTANCE.setProjectionMatrix(renderParams.dhMvmProjMatrix);
+			GlDhFogShader.INSTANCE.render(renderParams);
+			
+			GlDhFogApplyShader.INSTANCE.fogTexture = this.fogTexture;
+			GlDhFogApplyShader.INSTANCE.render(renderParams);
+		}
+	}
+	
+	//endregion
+	
+	
+	
+	//================//
+	// base overrides //
+	//================//
+	//region
+	
+	public void free()
+	{
+		GlDhFogShader.INSTANCE.free();
+		GlDhFogApplyShader.INSTANCE.free();
+	}
+	
+	//endregion
+	
+	
+	
+}

common/src/main/java/com/seibel/distanthorizons/common/render/openGl/postProcessing/fog/GlDhFogShader.java

@@ -0,0 +1,301 @@
+/*
+ *    This file is part of the Distant Horizons mod
+ *    licensed under the GNU LGPL 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 Lesser 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 Lesser General Public License for more details.
+ *
+ *    You should have received a copy of the GNU Lesser General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.seibel.distanthorizons.common.render.openGl.postProcessing.fog;
+
+import com.seibel.distanthorizons.api.enums.rendering.EDhApiFogColorMode;
+import com.seibel.distanthorizons.api.enums.rendering.EDhApiHeightFogDirection;
+import com.seibel.distanthorizons.api.enums.rendering.EDhApiHeightFogMixMode;
+import com.seibel.distanthorizons.api.objects.math.DhApiMat4f;
+import com.seibel.distanthorizons.common.render.openGl.GlDhMetaRenderer;
+import com.seibel.distanthorizons.common.render.openGl.glObject.shader.GlShaderProgram;
+import com.seibel.distanthorizons.common.render.openGl.postProcessing.GlScreenQuad;
+import com.seibel.distanthorizons.common.wrappers.minecraft.MinecraftGLWrapper;
+import com.seibel.distanthorizons.core.config.Config;
+import com.seibel.distanthorizons.core.dependencyInjection.SingletonInjector;
+import com.seibel.distanthorizons.common.render.openGl.util.GlAbstractShaderRenderer;
+import com.seibel.distanthorizons.core.render.RenderParams;
+import com.seibel.distanthorizons.core.util.LodUtil;
+import com.seibel.distanthorizons.core.wrapperInterfaces.minecraft.IMinecraftClientWrapper;
+import com.seibel.distanthorizons.core.util.math.Mat4f;
+import com.seibel.distanthorizons.core.wrapperInterfaces.minecraft.IMinecraftRenderWrapper;
+import org.lwjgl.opengl.GL32;
+
+import java.awt.*;
+
+public class GlDhFogShader extends GlAbstractShaderRenderer
+{
+	public static final GlDhFogShader INSTANCE = new GlDhFogShader();
+	
+	private static final IMinecraftClientWrapper MC = SingletonInjector.INSTANCE.get(IMinecraftClientWrapper.class);
+	private static final MinecraftGLWrapper GLMC = MinecraftGLWrapper.INSTANCE;
+	private static final IMinecraftRenderWrapper MC_RENDER = SingletonInjector.INSTANCE.get(IMinecraftRenderWrapper.class);
+	
+	
+	
+	public int frameBuffer;
+	private Mat4f inverseMvmProjMatrix; 
+	
+	
+	
+	//==========//
+	// Uniforms //
+	//==========//
+	//region
+	
+	public int uDepthMap;
+	/** Inverted Model View Projection matrix */
+	public int uInvMvmProj;
+	
+	// fog uniforms
+	public int uFogColor;
+	public int uFogScale;
+	public int uFogVerticalScale;
+	public int uFogDebugMode;
+	public int uFogFalloffType;
+	
+	// far fog
+	public int uFarFogStart;
+	public int uFarFogLength;
+	public int uFarFogMin;
+	public int uFarFogRange;
+	public int uFarFogDensity;
+	
+	// height fog
+	public int uHeightFogStart;
+	public int uHeightFogLength;
+	public int uHeightFogMin;
+	public int uHeightFogRange;
+	public int uHeightFogDensity;
+	
+	public int uHeightFogEnabled;
+	public int uHeightFogFalloffType;
+	public int uHeightBasedOnCamera;
+	public int uHeightFogBaseHeight;
+	public int uHeightFogAppliesUp;
+	public int uHeightFogAppliesDown;
+	public int uUseSphericalFog;
+	public int uHeightFogMixingMode;
+	public int uCameraBlockYPos;
+	
+	//endregion
+	
+	
+	
+	//=============//
+	// constructor //
+	//=============//
+	//region
+	
+	public GlDhFogShader() { }
+	
+	@Override
+	public void onInit()
+	{
+		this.shader = new GlShaderProgram(
+			"assets/distanthorizons/shaders/shared/gl/quadApply.vert",
+			"assets/distanthorizons/shaders/fog/gl/fog.frag",
+			"vPosition"
+		);
+		
+		// all uniforms should be tryGet...
+		// because disabling fog can cause the GLSL to optimize out most (if not all) uniforms
+		
+		this.uDepthMap = this.shader.getUniformLocation("uDepthMap");
+		this.uInvMvmProj = this.shader.getUniformLocation("uInvMvmProj");
+		
+		// Fog uniforms
+		this.uFogScale = this.shader.getUniformLocation("uFogScale");
+		this.uFogVerticalScale = this.shader.getUniformLocation("uFogVerticalScale");
+		this.uFogColor = this.shader.getUniformLocation("uFogColor");
+		this.uFogDebugMode = this.shader.getUniformLocation("uFogDebugMode");
+		this.uFogFalloffType = this.shader.getUniformLocation("uFogFalloffType");
+		
+		// fog config
+		this.uFarFogStart = this.shader.getUniformLocation("uFarFogStart");
+		this.uFarFogLength = this.shader.getUniformLocation("uFarFogLength");
+		this.uFarFogMin = this.shader.getUniformLocation("uFarFogMin");
+		this.uFarFogRange = this.shader.getUniformLocation("uFarFogRange");
+		this.uFarFogDensity = this.shader.getUniformLocation("uFarFogDensity");
+		
+		// height fog
+		this.uHeightFogStart = this.shader.getUniformLocation("uHeightFogStart");
+		this.uHeightFogLength = this.shader.getUniformLocation("uHeightFogLength");
+		this.uHeightFogMin = this.shader.getUniformLocation("uHeightFogMin");
+		this.uHeightFogRange = this.shader.getUniformLocation("uHeightFogRange");
+		this.uHeightFogDensity = this.shader.getUniformLocation("uHeightFogDensity");
+		
+		this.uHeightFogEnabled = this.shader.getUniformLocation("uHeightFogEnabled");
+		this.uHeightFogFalloffType = this.shader.getUniformLocation("uHeightFogFalloffType");
+		this.uHeightBasedOnCamera = this.shader.getUniformLocation("uHeightBasedOnCamera");
+		this.uHeightFogBaseHeight = this.shader.getUniformLocation("uHeightFogBaseHeight");
+		this.uHeightFogAppliesUp = this.shader.getUniformLocation("uHeightFogAppliesUp");
+		this.uHeightFogAppliesDown = this.shader.getUniformLocation("uHeightFogAppliesDown");
+		this.uUseSphericalFog = this.shader.getUniformLocation("uUseSphericalFog");
+		this.uHeightFogMixingMode = this.shader.getUniformLocation("uHeightFogMixingMode");
+		this.uCameraBlockYPos = this.shader.getUniformLocation("uCameraBlockYPos");
+			
+	}
+	
+	//endregion
+	
+	
+	
+	//=============//
+	// render prep //
+	//=============//
+	//region
+	
+	@Override
+	protected void onApplyUniforms(RenderParams renderParams)
+	{
+		int lodDrawDistance = Config.Client.Advanced.Graphics.Quality.lodChunkRenderDistanceRadius.get() * LodUtil.CHUNK_WIDTH;
+		
+		
+		
+		if (this.inverseMvmProjMatrix != null)
+		{
+			this.shader.setUniform(this.uInvMvmProj, this.inverseMvmProjMatrix);
+		}
+		
+		
+		// Fog uniforms
+		this.shader.setUniform(this.uFogColor, this.getFogColor(renderParams.partialTicks));
+		this.shader.setUniform(this.uFogScale, 1.f / lodDrawDistance);
+		this.shader.setUniform(this.uFogVerticalScale, 1.f / MC.getWrappedClientLevel().getMaxHeight());
+		// only used for debugging
+		this.shader.setUniform(this.uFogDebugMode, 0); // 1 = render everything with fog color // 7 = use debug rendering
+		this.shader.setUniform(this.uFogFalloffType, Config.Client.Advanced.Graphics.Fog.farFogFalloff.get().value);
+		
+		
+		// fog config
+		float farFogStart = Config.Client.Advanced.Graphics.Fog.farFogStart.get();
+		float farFogEnd = Config.Client.Advanced.Graphics.Fog.farFogEnd.get();
+		float farFogMin = Config.Client.Advanced.Graphics.Fog.farFogMin.get();
+		float farFogMax = Config.Client.Advanced.Graphics.Fog.farFogMax.get();
+		float farFogDensity = Config.Client.Advanced.Graphics.Fog.farFogDensity.get();
+		
+		// override fog if underwater
+		if (MC_RENDER.isFogStateSpecial())
+		{
+			// hide everything behind fog
+			farFogStart = 0.0f;
+			farFogEnd = 0.0f;
+		}
+		
+		this.shader.setUniform(this.uFarFogStart, farFogStart);
+		this.shader.setUniform(this.uFarFogLength, farFogEnd - farFogStart);
+		this.shader.setUniform(this.uFarFogMin, farFogMin);
+		this.shader.setUniform(this.uFarFogRange, farFogMax - farFogMin);
+		this.shader.setUniform(this.uFarFogDensity, farFogDensity);
+		
+		
+		// height config
+		EDhApiHeightFogMixMode heightFogMixingMode = Config.Client.Advanced.Graphics.Fog.HeightFog.heightFogMixMode.get();
+		boolean heightFogEnabled = heightFogMixingMode != EDhApiHeightFogMixMode.SPHERICAL && heightFogMixingMode != EDhApiHeightFogMixMode.CYLINDRICAL;
+		boolean useSphericalFog = heightFogMixingMode == EDhApiHeightFogMixMode.SPHERICAL;
+		EDhApiHeightFogDirection heightFogCameraDirection = Config.Client.Advanced.Graphics.Fog.HeightFog.heightFogDirection.get();
+		
+		float heightFogStart = Config.Client.Advanced.Graphics.Fog.HeightFog.heightFogStart.get();
+		float heightFogEnd = Config.Client.Advanced.Graphics.Fog.HeightFog.heightFogEnd.get();
+		float heightFogMin = Config.Client.Advanced.Graphics.Fog.HeightFog.heightFogMin.get();
+		float heightFogMax = Config.Client.Advanced.Graphics.Fog.HeightFog.heightFogMax.get();
+		float heightFogDensity = Config.Client.Advanced.Graphics.Fog.HeightFog.heightFogDensity.get();
+		
+		this.shader.setUniform(this.uHeightFogStart, heightFogStart);
+		this.shader.setUniform(this.uHeightFogLength, heightFogEnd - heightFogStart);
+		this.shader.setUniform(this.uHeightFogMin, heightFogMin);
+		this.shader.setUniform(this.uHeightFogRange, heightFogMax - heightFogMin);
+		this.shader.setUniform(this.uHeightFogDensity, heightFogDensity);
+		
+		
+		this.shader.setUniform(this.uHeightFogEnabled, heightFogEnabled);
+		this.shader.setUniform(this.uHeightFogFalloffType, Config.Client.Advanced.Graphics.Fog.HeightFog.heightFogFalloff.get().value);
+		this.shader.setUniform(this.uHeightFogBaseHeight, Config.Client.Advanced.Graphics.Fog.HeightFog.heightFogBaseHeight.get());
+		this.shader.setUniform(this.uHeightBasedOnCamera, heightFogCameraDirection.basedOnCamera);
+		this.shader.setUniform(this.uHeightFogAppliesUp, heightFogCameraDirection.fogAppliesUp);
+		this.shader.setUniform(this.uHeightFogAppliesDown, heightFogCameraDirection.fogAppliesDown);
+		this.shader.setUniform(this.uUseSphericalFog, useSphericalFog);
+		this.shader.setUniform(this.uHeightFogMixingMode, heightFogMixingMode.value);
+		this.shader.setUniform(this.uCameraBlockYPos, (float)MC_RENDER.getCameraExactPosition().y);
+		
+	}
+	private Color getFogColor(float partialTicks)
+	{
+		Color fogColor;
+		
+		if (Config.Client.Advanced.Graphics.Fog.colorMode.get() == EDhApiFogColorMode.USE_SKY_COLOR)
+		{
+			fogColor = MC_RENDER.getSkyColor();
+		}
+		else
+		{
+			fogColor = MC_RENDER.getFogColor(partialTicks);
+		}
+		
+		return fogColor;
+	}
+	
+	public void setProjectionMatrix(DhApiMat4f modelViewProjectionMatrix)
+	{
+		this.inverseMvmProjMatrix = new Mat4f(modelViewProjectionMatrix);
+		this.inverseMvmProjMatrix.invert();
+	}
+	
+	//endregion
+	
+	
+	
+	//========//
+	// render //
+	//========//
+	//region
+	
+	@Override
+	protected void onRender()
+	{
+		GLMC.glBindFramebuffer(GL32.GL_FRAMEBUFFER, this.frameBuffer);
+		GLMC.disableScissorTest();
+		GLMC.disableDepthTest();
+		GLMC.disableBlend();
+		
+		GLMC.glActiveTexture(GL32.GL_TEXTURE0);
+		GLMC.glBindTexture(GlDhMetaRenderer.INSTANCE.getActiveDepthTextureId());
+		GL32.glUniform1i(this.uDepthMap, 0);
+		
+		// this is necessary for MC 1.16 (IE Legacy OpenGL)
+		// otherwise the framebuffer isn't cleared correctly and the fog smears across the screen
+		if (MC_RENDER.runningLegacyOpenGL())
+		{
+			// in another part of the DH code we set the fog color to opaque, here it needs to be transparent
+			float[] clearColorValues = new float[4];
+			GL32.glGetFloatv(GL32.GL_COLOR_CLEAR_VALUE, clearColorValues);
+			GL32.glClearColor(clearColorValues[0], clearColorValues[1], clearColorValues[2], 0.0f);
+			
+			GL32.glClear(GL32.GL_COLOR_BUFFER_BIT | GL32.GL_DEPTH_BUFFER_BIT);
+		}
+		
+		
+		GlScreenQuad.INSTANCE.render();
+	}
+	
+	//endregion
+	
+	
+}

common/src/main/java/com/seibel/distanthorizons/common/render/openGl/postProcessing/ssao/GlDhSSAOApplyShader.java

@@ -0,0 +1,146 @@
+/*
+ *    This file is part of the Distant Horizons mod
+ *    licensed under the GNU LGPL 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 Lesser 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 Lesser General Public License for more details.
+ *
+ *    You should have received a copy of the GNU Lesser General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.seibel.distanthorizons.common.render.openGl.postProcessing.ssao;
+
+import com.seibel.distanthorizons.common.render.openGl.GlDhMetaRenderer;
+import com.seibel.distanthorizons.common.render.openGl.glObject.shader.GlShaderProgram;
+import com.seibel.distanthorizons.common.render.openGl.postProcessing.GlScreenQuad;
+import com.seibel.distanthorizons.common.wrappers.minecraft.MinecraftGLWrapper;
+import com.seibel.distanthorizons.common.render.openGl.util.GlAbstractShaderRenderer;
+import com.seibel.distanthorizons.core.render.RenderParams;
+import com.seibel.distanthorizons.core.util.RenderUtil;
+import org.lwjgl.opengl.GL32;
+
+/**
+ * Draws the SSAO texture onto DH's FrameBuffer. <br><br>
+ * 
+ * See Also: <br>
+ * {@link GlDhSSAORenderer} - Parent to this shader. <br>
+ * {@link GlDhSSAOShader} - draws the SSAO texture. <br>
+ */
+public class GlDhSSAOApplyShader extends GlAbstractShaderRenderer
+{
+	public static GlDhSSAOApplyShader INSTANCE = new GlDhSSAOApplyShader();
+	
+	private static final MinecraftGLWrapper GLMC = MinecraftGLWrapper.INSTANCE;
+	
+	
+	public int ssaoTexture;
+	
+	// uniforms
+	public int gSSAOMapUniform;
+	public int gDepthMapUniform;
+	public int gViewSizeUniform;
+	public int gBlurRadiusUniform;
+	public int gNearUniform;
+	public int gFarUniform;
+	
+	
+	
+	//=============//
+	// constructor //
+	//=============//
+	
+	@Override
+	public void onInit()
+	{
+		this.shader = new GlShaderProgram(
+			"assets/distanthorizons/shaders/shared/gl/quadApply.vert",
+			"assets/distanthorizons/shaders/ssao/gl/apply.frag",
+			"vPosition"
+		);
+		
+		// uniform setup
+		this.gSSAOMapUniform = this.shader.getUniformLocation("gSSAOMap");
+		this.gDepthMapUniform = this.shader.getUniformLocation("gDepthMap");
+		this.gViewSizeUniform = this.shader.tryGetUniformLocation("gViewSize");
+		this.gBlurRadiusUniform = this.shader.tryGetUniformLocation("gBlurRadius");
+		this.gNearUniform = this.shader.tryGetUniformLocation("gNear");
+		this.gFarUniform = this.shader.tryGetUniformLocation("gFar");
+	}
+	
+	
+	
+	//=============//
+	// render prep //
+	//=============//
+	
+	@Override
+	protected void onApplyUniforms(RenderParams renderParams)
+	{
+		GLMC.glActiveTexture(GL32.GL_TEXTURE0);
+		GLMC.glBindTexture(GlDhMetaRenderer.INSTANCE.getActiveDepthTextureId());
+		GL32.glUniform1i(this.gDepthMapUniform, 0);
+		
+		GLMC.glActiveTexture(GL32.GL_TEXTURE1);
+		GLMC.glBindTexture(this.ssaoTexture);
+		GL32.glUniform1i(this.gSSAOMapUniform, 1);
+		
+		GL32.glUniform1i(this.gBlurRadiusUniform, 2);
+		
+		if (this.gViewSizeUniform >= 0)
+		{
+			GL32.glUniform2f(this.gViewSizeUniform,
+					MC_RENDER.getTargetFramebufferViewportWidth(),
+					MC_RENDER.getTargetFramebufferViewportHeight());
+		}
+		
+		if (this.gNearUniform >= 0)
+		{
+			GL32.glUniform1f(this.gNearUniform,
+					RenderUtil.getNearClipPlaneInBlocks());
+		}
+		
+		if (this.gFarUniform >= 0)
+		{
+			float farClipPlane = RenderUtil.getFarClipPlaneDistanceInBlocks();
+			GL32.glUniform1f(this.gFarUniform, farClipPlane);
+		}
+	}
+	
+	
+	
+	//========//
+	// render //
+	//========//
+	
+	@Override
+	protected void onRender()
+	{
+		GLMC.enableBlend();
+		GL32.glBlendEquation(GL32.GL_FUNC_ADD);
+		GLMC.glBlendFuncSeparate(GL32.GL_ZERO, GL32.GL_SRC_ALPHA, GL32.GL_ZERO, GL32.GL_ONE);
+
+		// Depth testing must be disabled otherwise this application shader won't apply anything.
+		// setting this isn't necessary in vanilla, but some mods may change this, requiring it to be set manually, 
+		// it should be automatically restored after rendering is complete.
+		GLMC.disableDepthTest();
+		
+		// apply the rendered SSAO to the LODs 
+		GLMC.glBindFramebuffer(GL32.GL_READ_FRAMEBUFFER, GlDhSSAOShader.INSTANCE.frameBuffer);
+		GLMC.glBindFramebuffer(GL32.GL_DRAW_FRAMEBUFFER, GlDhMetaRenderer.INSTANCE.getActiveFramebufferId());
+		
+		
+		GlScreenQuad.INSTANCE.render();
+	}
+	
+	
+	
+}

common/src/main/java/com/seibel/distanthorizons/common/render/openGl/postProcessing/ssao/GlDhSSAORenderer.java

@@ -0,0 +1,156 @@
+/*
+ *    This file is part of the Distant Horizons mod
+ *    licensed under the GNU LGPL 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 Lesser 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 Lesser General Public License for more details.
+ *
+ *    You should have received a copy of the GNU Lesser General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.seibel.distanthorizons.common.render.openGl.postProcessing.ssao;
+
+import com.seibel.distanthorizons.common.render.openGl.glObject.GLState;
+import com.seibel.distanthorizons.common.wrappers.minecraft.MinecraftGLWrapper;
+import com.seibel.distanthorizons.core.dependencyInjection.SingletonInjector;
+import com.seibel.distanthorizons.core.render.RenderParams;
+import com.seibel.distanthorizons.core.wrapperInterfaces.minecraft.IMinecraftRenderWrapper;
+import com.seibel.distanthorizons.core.wrapperInterfaces.render.renderPass.IDhSsaoRenderer;
+import org.lwjgl.opengl.GL32;
+import org.lwjgl.opengl.GL43C;
+
+import java.nio.ByteBuffer;
+
+/**
+ * Handles adding SSAO via {@link GlDhSSAOShader} and {@link GlDhSSAOApplyShader}. <br><br>
+ * 
+ * {@link GlDhSSAOShader} - draws the SSAO to a texture. <br>
+ * {@link GlDhSSAOApplyShader} - draws the SSAO texture to DH's FrameBuffer. <br>
+ */
+public class GlDhSSAORenderer implements IDhSsaoRenderer
+{
+	public static GlDhSSAORenderer INSTANCE = new GlDhSSAORenderer();
+	
+	private static final IMinecraftRenderWrapper MC_RENDER = SingletonInjector.INSTANCE.get(IMinecraftRenderWrapper.class);
+	private static final MinecraftGLWrapper GLMC = MinecraftGLWrapper.INSTANCE;
+	
+	
+	private boolean init = false;
+	
+	private int width = -1;
+	private int height = -1;
+	private int ssaoFramebuffer = -1;
+	
+	private int ssaoTexture = -1;
+	
+	
+	
+	//=============//
+	// constructor //
+	//=============//
+	
+	private GlDhSSAORenderer() { }
+	
+	public void init()
+	{
+		if (this.init) return;
+		this.init = true;
+		
+		GlDhSSAOShader.INSTANCE.init();
+		GlDhSSAOApplyShader.INSTANCE.init();
+	}
+	
+	private void createFramebuffer(int width, int height)
+	{
+		if (this.ssaoFramebuffer != -1)
+		{
+			GL32.glDeleteFramebuffers(this.ssaoFramebuffer);
+			this.ssaoFramebuffer = -1;
+		}
+		
+		if (this.ssaoTexture != -1)
+		{
+			GLMC.glDeleteTextures(this.ssaoTexture);
+			this.ssaoTexture = -1;
+		}
+		
+		this.ssaoFramebuffer = GL32.glGenFramebuffers();
+		GLMC.glBindFramebuffer(GL32.GL_FRAMEBUFFER, this.ssaoFramebuffer);
+		
+		this.ssaoTexture = GLMC.glGenTextures();
+		{
+			GLMC.glBindTexture(this.ssaoTexture);
+			GL32.glTexImage2D(GL32.GL_TEXTURE_2D, 0, GL32.GL_R16F, width, height, 0, GL32.GL_RED, GL32.GL_HALF_FLOAT, (ByteBuffer) null);
+			GL32.glTexParameteri(GL32.GL_TEXTURE_2D, GL32.GL_TEXTURE_MIN_FILTER, GL32.GL_LINEAR);
+			GL32.glTexParameteri(GL32.GL_TEXTURE_2D, GL32.GL_TEXTURE_MAG_FILTER, GL32.GL_LINEAR);
+			
+			// disable mip-mapping since DH is just going to draw straight to the screen
+			GL43C.glTexParameteri(GL43C.GL_TEXTURE_2D, GL43C.GL_TEXTURE_BASE_LEVEL, 0);
+			GL43C.glTexParameteri(GL43C.GL_TEXTURE_2D, GL43C.GL_TEXTURE_MAX_LEVEL, 0);
+		}
+		
+		GL32.glFramebufferTexture2D(GL32.GL_FRAMEBUFFER, GL32.GL_COLOR_ATTACHMENT0, GL32.GL_TEXTURE_2D, this.ssaoTexture, 0);
+	}
+	
+	
+	
+	//========//
+	// render //
+	//========//
+	//region
+	
+	@Override
+	public void render(RenderParams renderParams)
+	{
+		try(GLState state = new GLState())
+		{
+			this.init();
+			
+			// resize the framebuffer if necessary
+			int width = MC_RENDER.getTargetFramebufferViewportWidth();
+			int height = MC_RENDER.getTargetFramebufferViewportHeight();
+			if (this.width != width || this.height != height)
+			{
+				this.width = width;
+				this.height = height;
+				this.createFramebuffer(width, height);
+			}
+			
+			GlDhSSAOShader.INSTANCE.frameBuffer = this.ssaoFramebuffer;
+			GlDhSSAOShader.INSTANCE.setProjectionMatrix(renderParams.dhProjectionMatrix);
+			GlDhSSAOShader.INSTANCE.render(renderParams);
+			
+			GlDhSSAOApplyShader.INSTANCE.ssaoTexture = this.ssaoTexture;
+			GlDhSSAOApplyShader.INSTANCE.render(renderParams);
+		}
+	}
+	
+	//endregion
+	
+	
+	
+	//================//
+	// base overrides //
+	//================//
+	//region
+	
+	public void free()
+	{
+		GlDhSSAOShader.INSTANCE.free();
+		GlDhSSAOApplyShader.INSTANCE.free();
+	}
+	
+	//endregion
+	
+	
+	
+}

common/src/main/java/com/seibel/distanthorizons/common/render/openGl/postProcessing/ssao/GlDhSSAOShader.java

@@ -0,0 +1,144 @@
+/*
+ *    This file is part of the Distant Horizons mod
+ *    licensed under the GNU LGPL 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 Lesser 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 Lesser General Public License for more details.
+ *
+ *    You should have received a copy of the GNU Lesser General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.seibel.distanthorizons.common.render.openGl.postProcessing.ssao;
+
+import com.seibel.distanthorizons.api.objects.math.DhApiMat4f;
+import com.seibel.distanthorizons.common.render.openGl.GlDhMetaRenderer;
+import com.seibel.distanthorizons.common.render.openGl.glObject.shader.GlShaderProgram;
+import com.seibel.distanthorizons.common.render.openGl.postProcessing.GlScreenQuad;
+import com.seibel.distanthorizons.common.wrappers.minecraft.MinecraftGLWrapper;
+import com.seibel.distanthorizons.common.render.openGl.util.GlAbstractShaderRenderer;
+import com.seibel.distanthorizons.core.render.RenderParams;
+import com.seibel.distanthorizons.core.util.math.Mat4f;
+import org.lwjgl.opengl.GL32;
+
+/**
+ * Draws the SSAO to a texture. <br><br>
+ *
+ * See Also: <br>
+ * {@link GlDhSSAORenderer} - Parent to this shader. <br>
+ * {@link GlDhSSAOApplyShader} - draws the SSAO texture to DH's FrameBuffer. <br>
+ */
+public class GlDhSSAOShader extends GlAbstractShaderRenderer
+{
+	public static GlDhSSAOShader INSTANCE = new GlDhSSAOShader();
+	
+	private static final MinecraftGLWrapper GLMC = MinecraftGLWrapper.INSTANCE;
+	
+	
+	public int frameBuffer;
+	
+	private Mat4f projection;
+	private Mat4f invertedProjection;
+	
+	
+	// uniforms
+	public int uProj;
+	public int uInvProj;
+	public int uSampleCount;
+	public int uRadius;
+	public int uStrength;
+	public int uMinLight;
+	public int uBias;
+	public int uDepthMap;
+	public int uFadeDistanceInBlocks;
+	
+	
+	
+	//=============//
+	// constructor //
+	//=============//
+	
+	@Override
+	public void onInit()
+	{
+		this.shader = new GlShaderProgram(
+			"assets/distanthorizons/shaders/shared/gl/quadApply.vert",
+			"assets/distanthorizons/shaders/ssao/gl/ao.frag",
+			"vPosition"
+		);
+		
+		// uniform setup
+		this.uProj = this.shader.getUniformLocation("uProj");
+		this.uInvProj = this.shader.getUniformLocation("uInvProj");
+		this.uSampleCount = this.shader.getUniformLocation("uSampleCount");
+		this.uRadius = this.shader.getUniformLocation("uRadius");
+		this.uStrength = this.shader.getUniformLocation("uStrength");
+		this.uMinLight = this.shader.getUniformLocation("uMinLight");
+		this.uBias = this.shader.getUniformLocation("uBias");
+		this.uDepthMap = this.shader.getUniformLocation("uDepthMap");
+		this.uFadeDistanceInBlocks = this.shader.getUniformLocation("uFadeDistanceInBlocks");
+	}
+	
+	
+	
+	//=============//
+	// render prep //
+	//=============//
+	
+	public void setProjectionMatrix(DhApiMat4f projectionMatrix)
+	{
+		this.projection = new Mat4f(projectionMatrix);
+		
+		this.invertedProjection = new Mat4f(projectionMatrix);
+		this.invertedProjection.invert();
+	}
+	
+	@Override
+	protected void onApplyUniforms(RenderParams renderParams)
+	{
+		this.shader.setUniform(this.uProj, this.projection);
+		
+		this.shader.setUniform(this.uInvProj, this.invertedProjection);
+		
+		this.shader.setUniform(this.uSampleCount, 6);
+		this.shader.setUniform(this.uRadius, 4.0f);
+		this.shader.setUniform(this.uStrength, 0.2f);
+		this.shader.setUniform(this.uMinLight, 0.25f);
+		this.shader.setUniform(this.uBias, 0.02f);
+		this.shader.setUniform(this.uFadeDistanceInBlocks, 1_600.0f);
+		
+		GL32.glUniform1i(this.uDepthMap, 0);
+		
+	}
+	
+	
+	
+	//========//
+	// render //
+	//========//
+	
+	@Override
+	protected void onRender()
+	{
+		GLMC.glBindFramebuffer(GL32.GL_FRAMEBUFFER, this.frameBuffer);
+		GLMC.disableScissorTest();
+		GLMC.disableDepthTest();
+		GLMC.disableBlend();
+		
+		GLMC.glActiveTexture(GL32.GL_TEXTURE0);
+		GLMC.glBindTexture(GlDhMetaRenderer.INSTANCE.getActiveDepthTextureId());
+		
+		GlScreenQuad.INSTANCE.render();
+	}
+	
+	
+	
+}

common/src/main/java/com/seibel/distanthorizons/common/render/openGl/test/GlTestTriangleRenderer.java

@@ -0,0 +1,146 @@
+/*
+ *    This file is part of the Distant Horizons mod
+ *    licensed under the GNU LGPL 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 Lesser 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 Lesser General Public License for more details.
+ *
+ *    You should have received a copy of the GNU Lesser General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.seibel.distanthorizons.common.render.openGl.test;
+
+import com.seibel.distanthorizons.api.enums.config.EDhApiGpuUploadMethod;
+import com.seibel.distanthorizons.common.render.openGl.postProcessing.apply.GlDhApplyShader;
+import com.seibel.distanthorizons.common.wrappers.minecraft.MinecraftGLWrapper;
+import com.seibel.distanthorizons.core.dependencyInjection.SingletonInjector;
+import com.seibel.distanthorizons.core.logging.DhLogger;
+import com.seibel.distanthorizons.core.logging.DhLoggerBuilder;
+import com.seibel.distanthorizons.common.render.openGl.glObject.buffer.GLVertexBuffer;
+import com.seibel.distanthorizons.common.render.openGl.glObject.shader.GlShaderProgram;
+import com.seibel.distanthorizons.common.render.openGl.glObject.vertexAttribute.GlAbstractVertexAttribute;
+import com.seibel.distanthorizons.common.render.openGl.glObject.vertexAttribute.GlVertexPointer;
+import com.seibel.distanthorizons.core.render.RenderParams;
+import com.seibel.distanthorizons.core.wrapperInterfaces.minecraft.IMinecraftRenderWrapper;
+
+import com.seibel.distanthorizons.core.wrapperInterfaces.render.renderPass.IDhTestTriangleRenderer;
+import org.lwjgl.opengl.GL32;
+
+import java.nio.ByteBuffer;
+import java.nio.ByteOrder;
+
+/**
+ * Renders a UV colored quad
+ * to the center of the screen to confirm DH's
+ * apply shader is running correctly
+ */
+public class GlTestTriangleRenderer implements IDhTestTriangleRenderer
+{
+	public static final DhLogger LOGGER = new DhLoggerBuilder().build(); 
+	
+	private static final IMinecraftRenderWrapper MC_RENDER = SingletonInjector.INSTANCE.get(IMinecraftRenderWrapper.class);
+	private static final MinecraftGLWrapper GLMC = MinecraftGLWrapper.INSTANCE;
+	
+	public static final GlTestTriangleRenderer INSTANCE = new GlTestTriangleRenderer();
+	
+	// Render a square with uv color
+	private static final float[] VERTICES =
+	{
+		// PosX,Y,    ColorR,G,B,A
+		-0.5f, -0.5f,   1.0f, 0.0f, 0.0f, 1.0f,
+		0.5f, -0.5f,   0.0f, 1.0f, 0.0f, 1.0f,
+		0.0f,  0.5f,   0.0f, 0.0f, 1.0f, 1.0f,
+	};
+	
+	
+	
+	GlShaderProgram basicShader;
+	GLVertexBuffer vbo;
+	GlAbstractVertexAttribute va;
+	boolean init = false;
+	
+	
+	
+	//=============//
+	// constructor //
+	//=============//
+	//region
+	
+	private GlTestTriangleRenderer() { }
+	
+	public void init()
+	{
+		if (this.init)
+		{
+			return;
+		}
+		
+		LOGGER.info("init");
+		this.init = true;
+		this.va = GlAbstractVertexAttribute.create();
+		this.va.bind();
+		// Pos
+		this.va.setVertexAttribute(0, 0, GlVertexPointer.addVec2Pointer(false));
+		// Color
+		this.va.setVertexAttribute(0, 1, GlVertexPointer.addVec4Pointer(false));
+		this.va.completeAndCheck(Float.BYTES * 6);
+		this.basicShader = new GlShaderProgram(
+			"assets/distanthorizons/shaders/test/gl/vert.vert",
+			"assets/distanthorizons/shaders/test/gl/frag.frag",
+			new String[]{"vPosition", "color"});
+		
+		this.createBuffer();
+	}
+	
+	private void createBuffer()
+	{
+		ByteBuffer buffer = ByteBuffer.allocateDirect(VERTICES.length * Float.BYTES);
+		// Fill buffer with vertices.
+		buffer.order(ByteOrder.nativeOrder());
+		buffer.asFloatBuffer().put(VERTICES);
+		buffer.rewind();
+		
+		this.vbo = new GLVertexBuffer(false);
+		this.vbo.bind();
+		this.vbo.uploadBuffer(buffer, 3, EDhApiGpuUploadMethod.DATA, VERTICES.length * Float.BYTES);
+	}
+	
+	//endregion
+	
+	
+	
+	//========//
+	// render //
+	//========//
+	//region
+	
+	@Override
+	public void render(RenderParams renderParams)
+	{
+		this.init();
+		
+		this.basicShader.bind();
+		this.va.bind();
+		
+		this.vbo.bind();
+		this.va.bindBufferToAllBindingPoints(this.vbo.getId());
+		
+		GL32.glDrawArrays(GL32.GL_TRIANGLES, 0, 3);
+		
+		GlDhApplyShader.INSTANCE.render(renderParams);
+	}
+	
+	//endregion
+	
+	
+	
+}

common/src/main/java/com/seibel/distanthorizons/common/render/openGl/util/GlAbstractShaderRenderer.java

@@ -0,0 +1,112 @@
+/*
+ *    This file is part of the Distant Horizons mod
+ *    licensed under the GNU LGPL 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 Lesser 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 Lesser General Public License for more details.
+ *
+ *    You should have received a copy of the GNU Lesser General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.seibel.distanthorizons.common.render.openGl.util;
+
+import com.seibel.distanthorizons.common.render.openGl.glObject.shader.GlShaderProgram;
+import com.seibel.distanthorizons.core.dependencyInjection.SingletonInjector;
+import com.seibel.distanthorizons.core.render.RenderParams;
+import com.seibel.distanthorizons.core.wrapperInterfaces.minecraft.IMinecraftRenderWrapper;
+import org.lwjgl.opengl.GL32;
+
+public abstract class GlAbstractShaderRenderer
+{
+	protected static final IMinecraftRenderWrapper MC_RENDER = SingletonInjector.INSTANCE.get(IMinecraftRenderWrapper.class);
+	
+	
+	protected GlShaderProgram shader;
+	protected boolean init = false;
+	
+	
+	//=======//
+	// setup //
+	//=======//
+	//region
+	
+	protected GlAbstractShaderRenderer() {}
+	
+	public void init()
+	{
+		if (this.init) return;
+		this.init = true;
+		
+		this.onInit();
+	}
+	
+	//endregion
+	
+	
+	//==================//
+	// abstract methods //
+	//==================//
+	//region
+	
+	protected void onInit() {}
+	
+	protected void onApplyUniforms(RenderParams renderParams) {}
+	
+	protected void onRender() {}
+	
+	//endregion
+	
+	
+	
+	//===========//
+	// rendering //
+	//===========//
+	//region
+	
+	public void render(RenderParams renderParams)
+	{
+		this.init();
+		
+		this.shader.bind();
+		
+		this.onApplyUniforms(renderParams);
+		
+		int width = MC_RENDER.getTargetFramebufferViewportWidth();
+		int height = MC_RENDER.getTargetFramebufferViewportHeight();
+		GL32.glViewport(0, 0, width, height);
+		
+		this.onRender();
+		
+		this.shader.unbind();
+	}
+	
+	//endregion
+	
+	
+	//================//
+	// base overrides //
+	//================//
+	//region
+	
+	public void free()
+	{
+		if (this.shader != null)
+		{
+			this.shader.free();
+		}
+	}
+	
+	// endregion
+	
+	
+	
+}

common/src/main/java/com/seibel/distanthorizons/common/render/openGl/util/vertexFormat/GlLodVertexFormat.java

@@ -0,0 +1,110 @@
+/*
+ *    This file is part of the Distant Horizons mod
+ *    licensed under the GNU LGPL 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 Lesser 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 Lesser General Public License for more details.
+ *
+ *    You should have received a copy of the GNU Lesser General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.seibel.distanthorizons.common.render.openGl.util.vertexFormat;
+
+import java.util.stream.Collectors;
+
+import com.google.common.collect.ImmutableList;
+
+import it.unimi.dsi.fastutil.ints.IntArrayList;
+import it.unimi.dsi.fastutil.ints.IntList;
+
+/**
+ * This is used to represent a single vertex
+ * stored in GPU memory,
+ * <p>
+ * A (almost) exact copy of Minecraft's
+ * VertexFormat class, several methods
+ * were commented out since we didn't need them.
+ *
+ * @author James Seibel
+ * @version 12-9-2021
+ */
+public class GlLodVertexFormat
+{
+	/** the format of data stored in the GPU buffers */
+	public static final GlLodVertexFormat DH_VERTEX_FORMAT = GlVertexFormats.POSITION_COLOR_BLOCK_LIGHT_SKY_LIGHT_MATERIAL_ID_NORMAL_INDEX;
+	
+	
+	private final ImmutableList<GlLodVertexFormatElement> elements;
+	private final IntList offsets = new IntArrayList();
+	private final int byteSize;
+	
+	public GlLodVertexFormat(ImmutableList<GlLodVertexFormatElement> elementList)
+	{
+		this.elements = elementList;
+		int i = 0;
+		
+		for (GlLodVertexFormatElement LodVertexFormatElement : elementList)
+		{
+			this.offsets.add(i);
+			i += LodVertexFormatElement.getByteSize();
+		}
+		
+		this.byteSize = i;
+	}
+	
+	public int getByteSize()
+	{
+		return this.byteSize;
+	}
+	
+	public ImmutableList<GlLodVertexFormatElement> getElements()
+	{
+		return this.elements;
+	}
+	
+	
+	// Forge added method
+	public int getOffset(int index)
+	{
+		return offsets.getInt(index);
+	}
+	
+	
+	
+	@Override
+	public String toString() { return "format: " + this.elements.size() + " elements: " + this.elements.stream().map(Object::toString).collect(Collectors.joining(" ")); }
+	
+	
+	@Override
+	public boolean equals(Object obj)
+	{
+		if (this == obj)
+		{
+			return true;
+		}
+		else if (obj != null && this.getClass() == obj.getClass())
+		{
+			GlLodVertexFormat vertexFormat = (GlLodVertexFormat) obj;
+			return this.byteSize == vertexFormat.byteSize && this.elements.equals(vertexFormat.elements);
+		}
+		else
+		{
+			return false;
+		}
+	}
+	
+	@Override
+	public int hashCode() { return this.elements.hashCode(); }
+	
+	
+	
+}

common/src/main/java/com/seibel/distanthorizons/common/render/openGl/util/vertexFormat/GlLodVertexFormatElement.java

@@ -0,0 +1,168 @@
+/*
+ *    This file is part of the Distant Horizons mod
+ *    licensed under the GNU LGPL 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 Lesser 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 Lesser General Public License for more details.
+ *
+ *    You should have received a copy of the GNU Lesser General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.seibel.distanthorizons.common.render.openGl.util.vertexFormat;
+
+import org.lwjgl.opengl.GL32;
+
+/**
+ * This object is used to build LodVertexFormats.
+ * <p>
+ * A (almost) exact copy of Minecraft's
+ * VertexFormatElement class. <br>
+ * A number of things were removed from the original
+ * object since we didn't need them, specifically "usage".
+ *
+ * @author James Seibel
+ * @version 11-13-2021
+ */
+public class GlLodVertexFormatElement
+{
+	private final GlLodVertexFormatElement.DataType dataType;
+	/** James isn't sure what index is for */
+	private final int index;
+	private final int count;
+	private final int byteSize;
+	private final boolean isPadding;
+	
+	public GlLodVertexFormatElement(int newIndex, GlLodVertexFormatElement.DataType newType, int newCount, boolean isPadding)
+	{
+		this.dataType = newType;
+		this.index = newIndex;
+		this.count = newCount;
+		this.byteSize = newType.getSize() * this.count;
+		this.isPadding = isPadding;
+	}
+	
+	public final boolean getIsPadding()
+	{
+		return isPadding;
+	}
+	
+	public final GlLodVertexFormatElement.DataType getType()
+	{
+		return this.dataType;
+	}
+	
+	public final int getIndex()
+	{
+		return this.index;
+	}
+	
+	public final int getByteSize()
+	{
+		return this.byteSize;
+	}
+	
+	// added by Forge
+	public int getElementCount()
+	{
+		return count;
+	}
+	
+	
+	
+	public enum DataType
+	{
+		FLOAT(4, "Float", GL32.GL_FLOAT),
+		UBYTE(1, "Unsigned Byte", GL32.GL_UNSIGNED_BYTE),
+		BYTE(1, "Byte", GL32.GL_BYTE),
+		USHORT(2, "Unsigned Short", GL32.GL_UNSIGNED_SHORT),
+		SHORT(2, "Short", GL32.GL_SHORT),
+		UINT(4, "Unsigned Int", GL32.GL_UNSIGNED_INT),
+		INT(4, "Int", GL32.GL_INT);
+		
+		private final int size;
+		private final String name;
+		private final int glType;
+		
+		DataType(int sizeInBytes, String newName, int openGlDataType)
+		{
+			this.size = sizeInBytes;
+			this.name = newName;
+			this.glType = openGlDataType;
+		}
+		
+		public int getSize()
+		{
+			return this.size;
+		}
+		
+		public String getName()
+		{
+			return this.name;
+		}
+		
+		public int getGlType()
+		{
+			return this.glType;
+		}
+	}
+	
+	
+	
+	
+	@Override
+	public int hashCode()
+	{
+		int i = this.dataType.hashCode();
+		i = 31 * i + this.index;
+		return 31 * i + this.count;
+	}
+	
+	@Override
+	public String toString()
+	{
+		return this.count + "," + this.dataType.getName();
+	}
+	
+	@Override
+	public boolean equals(Object obj)
+	{
+		if (this == obj)
+		{
+			return true;
+		}
+		else if (obj != null && this.getClass() == obj.getClass())
+		{
+			GlLodVertexFormatElement LodVertexFormatElement = (GlLodVertexFormatElement) obj;
+			if (this.count != LodVertexFormatElement.count)
+			{
+				return false;
+			}
+			else if (this.index != LodVertexFormatElement.index)
+			{
+				return false;
+			}
+			else if (this.dataType != LodVertexFormatElement.dataType)
+			{
+				return false;
+			}
+			else
+			{
+				return false;
+			}
+		}
+		else
+		{
+			return false;
+		}
+	}
+	
+}

common/src/main/java/com/seibel/distanthorizons/common/render/openGl/util/vertexFormat/GlVertexFormats.java

@@ -0,0 +1,50 @@
+/*
+ *    This file is part of the Distant Horizons mod
+ *    licensed under the GNU LGPL 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 Lesser 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 Lesser General Public License for more details.
+ *
+ *    You should have received a copy of the GNU Lesser General Public License
+ *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.seibel.distanthorizons.common.render.openGl.util.vertexFormat;
+
+import com.google.common.collect.ImmutableList;
+
+/**
+ * A (almost) exact copy of MC's
+ * DefaultVertexFormats class.
+ */
+public class GlVertexFormats
+{
+	public static final GlLodVertexFormatElement ELEMENT_POSITION = new GlLodVertexFormatElement(3, GlLodVertexFormatElement.DataType.USHORT, 3, false);
+	public static final GlLodVertexFormatElement ELEMENT_COLOR = new GlLodVertexFormatElement(0, GlLodVertexFormatElement.DataType.UBYTE, 4, false);
+	public static final GlLodVertexFormatElement ELEMENT_BYTE_PADDING = new GlLodVertexFormatElement(0, GlLodVertexFormatElement.DataType.BYTE, 1, true);
+	
+	public static final GlLodVertexFormatElement ELEMENT_LIGHT = new GlLodVertexFormatElement(0, GlLodVertexFormatElement.DataType.UBYTE, 1, false);
+	public static final GlLodVertexFormatElement ELEMENT_IRIS_MATERIAL_INDEX = new GlLodVertexFormatElement(0, GlLodVertexFormatElement.DataType.BYTE, 1, false);
+	public static final GlLodVertexFormatElement ELEMENT_IRIS_NORMAL_INDEX = new GlLodVertexFormatElement(0, GlLodVertexFormatElement.DataType.BYTE, 1, false);
+	
+	
+	public static final GlLodVertexFormat POSITION_COLOR_BLOCK_LIGHT_SKY_LIGHT_MATERIAL_ID_NORMAL_INDEX = new GlLodVertexFormat(ImmutableList.<GlLodVertexFormatElement>builder()
+			.add(ELEMENT_POSITION)
+			.add(ELEMENT_BYTE_PADDING)
+			.add(ELEMENT_LIGHT)
+			.add(ELEMENT_COLOR)
+			.add(ELEMENT_IRIS_MATERIAL_INDEX)
+			.add(ELEMENT_IRIS_NORMAL_INDEX)
+			.add(ELEMENT_BYTE_PADDING)
+			.add(ELEMENT_BYTE_PADDING) // padding is to make sure the format is a multiple of 4
+			.build());
+	
+}

common/src/main/java/com/seibel/distanthorizons/common/util/ILightTextureMarker.java

@@ -1,32 +0,0 @@
-/*
- *    This file is part of the Distant Horizons mod
- *    licensed under the GNU LGPL 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 Lesser 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 Lesser General Public License for more details.
- *
- *    You should have received a copy of the GNU Lesser General Public License
- *    along with this program.  If not, see <https://www.gnu.org/licenses/>.
- */
-
-package com.seibel.distanthorizons.common.util;
-
-/** 
- * Added to MC's dynamic textures via mixins 
- * in order to denote whether a texture is a lightmap or not. <br><br>
- * 
- * If not done any dynamic texture could be used as the lightmap
- * which causes some weird rendering bugs.
- */
-public interface ILightTextureMarker
-{
-	void markLightTexture();
-}

common/src/main/java/com/seibel/distanthorizons/common/wrappers/DependencySetup.java

@@ -19,12 +19,19 @@
 
 package com.seibel.distanthorizons.common.wrappers;
 
+import com.seibel.distanthorizons.api.enums.config.EDhApiRenderApi;
+import com.seibel.distanthorizons.api.interfaces.render.IDhApiCustomRenderObjectFactory;
+import com.seibel.distanthorizons.common.render.blaze.BlazeDhRenderApiDefinition;
+import com.seibel.distanthorizons.common.render.openGl.GlDhRenderApiDefinition;
+import com.seibel.distanthorizons.core.config.Config;
+import com.seibel.distanthorizons.core.render.renderer.GenericRenderObjectFactory;
 import com.seibel.distanthorizons.common.wrappers.gui.ClassicConfigGUI;
 import com.seibel.distanthorizons.common.wrappers.gui.LangWrapper;
 import com.seibel.distanthorizons.common.wrappers.level.KeyedClientLevelManager;
-import com.seibel.distanthorizons.common.wrappers.minecraft.MinecraftGLWrapper;
 import com.seibel.distanthorizons.common.wrappers.minecraft.MinecraftServerWrapper;
 import com.seibel.distanthorizons.core.level.IKeyedClientLevelManager;
+import com.seibel.distanthorizons.core.logging.DhLogger;
+import com.seibel.distanthorizons.core.logging.DhLoggerBuilder;
 import com.seibel.distanthorizons.core.wrapperInterfaces.config.IConfigGui;
 import com.seibel.distanthorizons.core.wrapperInterfaces.config.ILangWrapper;
 import com.seibel.distanthorizons.common.wrappers.minecraft.MinecraftClientWrapper;
@@ -33,9 +40,9 @@ import com.seibel.distanthorizons.core.dependencyInjection.SingletonInjector;
 import com.seibel.distanthorizons.core.wrapperInterfaces.IVersionConstants;
 import com.seibel.distanthorizons.core.wrapperInterfaces.IWrapperFactory;
 import com.seibel.distanthorizons.core.wrapperInterfaces.minecraft.IMinecraftClientWrapper;
-import com.seibel.distanthorizons.core.wrapperInterfaces.minecraft.IMinecraftGLWrapper;
 import com.seibel.distanthorizons.core.wrapperInterfaces.minecraft.IMinecraftRenderWrapper;
 import com.seibel.distanthorizons.core.wrapperInterfaces.minecraft.IMinecraftSharedWrapper;
+import com.seibel.distanthorizons.core.wrapperInterfaces.render.AbstractDhRenderApiDefinition;
 
 /**
  * Binds all necessary dependencies, so we
@@ -49,6 +56,9 @@ import com.seibel.distanthorizons.core.wrapperInterfaces.minecraft.IMinecraftSha
  */
 public class DependencySetup
 {
+	protected static final DhLogger LOGGER = new DhLoggerBuilder().build();
+	
+	
 	
 	public static void createSharedBindings()
 	{
@@ -56,6 +66,7 @@ public class DependencySetup
 		SingletonInjector.INSTANCE.bind(IVersionConstants.class, VersionConstants.INSTANCE);
 		SingletonInjector.INSTANCE.bind(IWrapperFactory.class, WrapperFactory.INSTANCE);
 		SingletonInjector.INSTANCE.bind(IKeyedClientLevelManager.class, KeyedClientLevelManager.INSTANCE);
+		SingletonInjector.INSTANCE.bind(IDhApiCustomRenderObjectFactory.class, GenericRenderObjectFactory.INSTANCE);
 	}
 	
 	public static void createServerBindings()
@@ -66,8 +77,43 @@ public class DependencySetup
 		SingletonInjector.INSTANCE.bind(IMinecraftClientWrapper.class, MinecraftClientWrapper.INSTANCE);
 		SingletonInjector.INSTANCE.bind(IMinecraftSharedWrapper.class, MinecraftClientWrapper.INSTANCE);
 		SingletonInjector.INSTANCE.bind(IMinecraftRenderWrapper.class, MinecraftRenderWrapper.INSTANCE);
-		SingletonInjector.INSTANCE.bind(IMinecraftGLWrapper.class, MinecraftGLWrapper.INSTANCE);
 		SingletonInjector.INSTANCE.bind(IConfigGui.class, ClassicConfigGUI.CONFIG_CORE_INTERFACE);
 	}
 	
+	public static void setRenderingApiBindings()
+	{
+		EDhApiRenderApi renderingApiEnum = Config.Client.Advanced.Graphics.Experimental.renderingApi.get();
+		if (renderingApiEnum == EDhApiRenderApi.AUTO)
+		{
+			#if MC_VER < MC_1_21_11
+			renderingApiEnum = EDhApiRenderApi.OPEN_GL;
+			#else
+			renderingApiEnum = EDhApiRenderApi.BLAZE_3D;
+			#endif
+		}
+		
+		LOGGER.info("Setting DH Rendering API to: ["+renderingApiEnum+"].");
+		
+		AbstractDhRenderApiDefinition renderDefinition;
+		if (renderingApiEnum == EDhApiRenderApi.OPEN_GL)
+		{
+			renderDefinition = new GlDhRenderApiDefinition();
+		}
+		else if (renderingApiEnum == EDhApiRenderApi.BLAZE_3D)
+		{
+			#if MC_VER <= MC_1_21_10
+			throw new IllegalStateException("["+renderingApiEnum+"] is not supported on this version of Minecraft.");
+			#else
+			renderDefinition = new BlazeDhRenderApiDefinition();
+			#endif
+		}
+		else
+		{
+			throw new IllegalStateException("No ["+ AbstractDhRenderApiDefinition.class.getSimpleName()+"] concrete implementation found for the value: ["+renderingApiEnum+"].");
+		}
+		renderDefinition.bindRenderers();
+	}
+	
+	
+	
 }

common/src/main/java/com/seibel/distanthorizons/common/wrappers/McObjectConverter.java

@@ -46,7 +46,6 @@ public class McObjectConverter
 	
 	
 	/** 4x4 float matrix converter */
-	@Deprecated
 	public static Mat4f Convert(
 			#if MC_VER < MC_1_19_4 com.mojang.math.Matrix4f 
 			#elif MC_VER < MC_1_21_6 org.joml.Matrix4f

common/src/main/java/com/seibel/distanthorizons/common/wrappers/VersionConstants.java

@@ -19,22 +19,30 @@
 
 package com.seibel.distanthorizons.common.wrappers;
 
+import com.seibel.distanthorizons.api.enums.config.EDhApiRenderApi;
 import com.seibel.distanthorizons.core.wrapperInterfaces.IVersionConstants;
 
-/**
- * @author James Seibel
- * @version 12-11-2021
- */
 public class VersionConstants implements IVersionConstants
 {
 	public static final VersionConstants INSTANCE = new VersionConstants();
 	
 	
-	private VersionConstants()
-	{
 	
-	}
+	//=============//
+	// constructor //
+	//=============//
+	//region
 	
+	private VersionConstants() { }
+	
+	//endregion
+	
+	
+	
+	//=========//
+	// methods //
+	//=========//
+	//region
 	
 	@Override
 	public String getMinecraftVersion()
@@ -91,4 +99,18 @@ public class VersionConstants implements IVersionConstants
 		
 	}
 	
+	@Override
+	public EDhApiRenderApi getDefaultRenderingApi()
+	{
+		#if MC_VER <= MC_1_21_11
+			return EDhApiRenderApi.OPEN_GL;
+		#else
+			ERROR MC version constant missing
+		#endif
+	}
+	
+	//endregion
+	
+	
+	
 }

common/src/main/java/com/seibel/distanthorizons/common/wrappers/WrapperFactory.java

@@ -30,28 +30,33 @@ import com.seibel.distanthorizons.common.wrappers.chunk.ChunkWrapper;
 import com.seibel.distanthorizons.common.wrappers.world.ClientLevelWrapper;
 import com.seibel.distanthorizons.common.wrappers.world.ServerLevelWrapper;
 import com.seibel.distanthorizons.common.wrappers.worldGeneration.BatchGenerationEnvironment;
+import com.seibel.distanthorizons.core.dependencyInjection.SingletonInjector;
 import com.seibel.distanthorizons.core.level.IDhLevel;
 import com.seibel.distanthorizons.core.level.IDhServerLevel;
+import com.seibel.distanthorizons.core.wrapperInterfaces.render.AbstractDhRenderApiDefinition;
+import com.seibel.distanthorizons.core.wrapperInterfaces.render.objects.IDhGenericObjectVertexBufferContainer;
 import com.seibel.distanthorizons.core.util.LodUtil;
 import com.seibel.distanthorizons.core.wrapperInterfaces.IWrapperFactory;
 import com.seibel.distanthorizons.core.wrapperInterfaces.block.IBlockStateWrapper;
 import com.seibel.distanthorizons.core.wrapperInterfaces.chunk.IChunkWrapper;
+import com.seibel.distanthorizons.core.wrapperInterfaces.render.objects.ILodContainerUniformBufferWrapper;
+import com.seibel.distanthorizons.core.wrapperInterfaces.render.renderPass.IDhGenericRenderer;
+import com.seibel.distanthorizons.core.wrapperInterfaces.render.objects.IVertexBufferWrapper;
 import com.seibel.distanthorizons.core.wrapperInterfaces.world.IBiomeWrapper;
 import com.seibel.distanthorizons.core.wrapperInterfaces.world.ILevelWrapper;
 import com.seibel.distanthorizons.core.wrapperInterfaces.worldGeneration.IBatchGeneratorEnvironmentWrapper;
+import it.unimi.dsi.fastutil.objects.ObjectOpenHashSet;
 import net.minecraft.client.multiplayer.ClientLevel;
 #if MC_VER > MC_1_17_1
 import net.minecraft.core.Holder;
 #endif
 import net.minecraft.server.level.ServerLevel;
 import net.minecraft.world.level.Level;
-import net.minecraft.world.level.LevelReader;
 import net.minecraft.world.level.biome.Biome;
 import net.minecraft.world.level.block.state.BlockState;
 import net.minecraft.world.level.chunk.ChunkAccess;
 
 import java.io.IOException;
-import java.util.HashSet;
 
 /**
  * This handles creating abstract wrapper objects.
@@ -62,9 +67,32 @@ public class WrapperFactory implements IWrapperFactory
 	
 	
 	
+	//=====================//
+	// internal properties //
+	//=====================//
+	//region
+	
+	private AbstractDhRenderApiDefinition renderDefinition;
+	private AbstractDhRenderApiDefinition getRenderDefinition()
+	{
+		// delayed get to make sure we don't accidentally set the variable before it's bound
+		if (this.renderDefinition != null)
+		{
+			return this.renderDefinition;
+		}
+		
+		this.renderDefinition = SingletonInjector.INSTANCE.get(AbstractDhRenderApiDefinition.class);
+		return this.renderDefinition;
+	}
+	
+	//endregion
+	
+	
+	
 	//==============//
 	// core methods //
 	//==============//
+	//region
 	
 	@Override
 	public IBatchGeneratorEnvironmentWrapper createBatchGenerator(IDhLevel targetLevel)
@@ -103,7 +131,7 @@ public class WrapperFactory implements IWrapperFactory
 	@Override
 	public IBiomeWrapper deserializeBiomeWrapper(String str, ILevelWrapper levelWrapper) throws IOException { return BiomeWrapper.deserialize(str, levelWrapper); }
 	@Override 
-	public IBiomeWrapper getPlainsBiomeWrapper(ILevelWrapper levelWrapper) // TODO is there a way we could get this without the levelWrapper? it isn't necessary but would clean up the code a bit
+	public IBiomeWrapper getPlainsBiomeWrapper(ILevelWrapper levelWrapper)
 	{
 		try
 		{
@@ -121,9 +149,9 @@ public class WrapperFactory implements IWrapperFactory
 	public IBlockStateWrapper getAirBlockStateWrapper() { return BlockStateWrapper.AIR; }
 	
 	@Override
-	public HashSet<IBlockStateWrapper> getRendererIgnoredBlocks(ILevelWrapper levelWrapper) { return BlockStateWrapper.getRendererIgnoredBlocks(levelWrapper); }
+	public ObjectOpenHashSet<IBlockStateWrapper> getRendererIgnoredBlocks(ILevelWrapper levelWrapper) { return BlockStateWrapper.getRendererIgnoredBlocks(levelWrapper); }
 	@Override
-	public HashSet<IBlockStateWrapper> getRendererIgnoredCaveBlocks(ILevelWrapper levelWrapper) { return BlockStateWrapper.getRendererIgnoredCaveBlocks(levelWrapper); }
+	public ObjectOpenHashSet<IBlockStateWrapper> getRendererIgnoredCaveBlocks(ILevelWrapper levelWrapper) { return BlockStateWrapper.getRendererIgnoredCaveBlocks(levelWrapper); }
 	
 	@Override
 	public void resetRendererIgnoredCaveBlocks() { BlockStateWrapper.clearRendererIgnoredCaveBlocks(); }
@@ -211,10 +239,19 @@ public class WrapperFactory implements IWrapperFactory
 	}
 	
 	
+	@Override public IVertexBufferWrapper createVboWrapper(String name) { return this.getRenderDefinition().createVboWrapper(name); }
+	@Override public ILodContainerUniformBufferWrapper createLodContainerUniformWrapper() { return this.getRenderDefinition().createLodContainerUniformWrapper(); }
+	@Override public IDhGenericObjectVertexBufferContainer createGenericObjectVboContainer() { return this.getRenderDefinition().createGenericVboContainer(); }
+	@Override public IDhGenericRenderer createGenericRenderer() { return this.getRenderDefinition().createGenericRenderer(); }
+	
+	//endregion
+	
+	
 	
 	//=============//
 	// api methods //
 	//=============//
+	//region
 	
 	// documentation should be in the API interface
 	
@@ -313,12 +350,15 @@ public class WrapperFactory implements IWrapperFactory
 		return createWrapperErrorMessage("BlockState wrapper", expectedClassNames, objectArray);
 	}
 	
+	//endregion
+	
 	
 	
 	
 	//================//
 	// helper methods //
 	//================//
+	//region
 	
 	private static String createWrapperErrorMessage(String wrapperName, String[] expectedClassNames, Object[] objectArray)
 	{
@@ -354,4 +394,8 @@ public class WrapperFactory implements IWrapperFactory
 		return message.toString();
 	}
 	
+	//endregion
+	
+	
+	
 }

common/src/main/java/com/seibel/distanthorizons/common/wrappers/block/BiomeWrapper.java

@@ -258,7 +258,6 @@ public class BiomeWrapper implements IBiomeWrapper
 		return this.serialString;
 	}
 	
-	// TODO would it be worth while to cache these objects in a ConcurrentHashMap<string, IBiomeWrapper>?
 	public static IBiomeWrapper deserialize(String resourceLocationString, ILevelWrapper levelWrapper) throws IOException
 	{
 		// we need the final string for the concurrent hash map later

common/src/main/java/com/seibel/distanthorizons/common/wrappers/block/BlockStateWrapper.java

@@ -28,6 +28,7 @@ import com.seibel.distanthorizons.core.util.LodUtil;
 import com.seibel.distanthorizons.core.wrapperInterfaces.block.IBlockStateWrapper;
 
 import com.seibel.distanthorizons.core.wrapperInterfaces.world.ILevelWrapper;
+import it.unimi.dsi.fastutil.objects.ObjectOpenHashSet;
 import net.minecraft.tags.BlockTags;
 import net.minecraft.world.level.block.BeaconBeamBlock;
 import net.minecraft.world.level.block.Block;
@@ -43,6 +44,7 @@ import java.util.List;
 import java.util.concurrent.ConcurrentHashMap;
 import java.util.stream.Stream;
 
+import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 
 #if MC_VER == MC_1_16_5 || MC_VER == MC_1_17_1
@@ -91,17 +93,8 @@ public class BlockStateWrapper implements IBlockStateWrapper
 	public static final String DIRT_RESOURCE_LOCATION_STRING = "minecraft:dirt";
 	public static final String WATER_RESOURCE_LOCATION_STRING = "minecraft:water";
 	
-	/** Used to handle older MC versions that don't have an simple way of getting the block's tags */
+	public static ObjectOpenHashSet<IBlockStateWrapper> rendererIgnoredBlocks = null;
-	public static final List<String> OLD_BEACON_BASE_BLOCK_NAME_LIST = Arrays.asList(
+	public static ObjectOpenHashSet<IBlockStateWrapper> rendererIgnoredCaveBlocks = null;
-		"iron_block",
-		"gold_block",
-		"diamond_block",
-		"emerald_block",
-		"netherite_block"
-	);
-	
-	public static HashSet<IBlockStateWrapper> rendererIgnoredBlocks = null;
-	public static HashSet<IBlockStateWrapper> rendererIgnoredCaveBlocks = null;
 	
 	/** keep track of broken blocks so we don't log every time */
 	#if MC_VER <= MC_1_21_10
@@ -136,6 +129,7 @@ public class BlockStateWrapper implements IBlockStateWrapper
 	//==============//
 	// constructors //
 	//==============//
+	//region
 	
 	public static BlockStateWrapper fromBlockState(BlockState blockState, ILevelWrapper levelWrapper)
 	{
@@ -177,7 +171,7 @@ public class BlockStateWrapper implements IBlockStateWrapper
 		}
 	}
 	
-	private BlockStateWrapper(BlockState blockState, ILevelWrapper levelWrapper)
+	private BlockStateWrapper(@Nullable BlockState blockState, ILevelWrapper levelWrapper)
 	{
 		this.blockState = blockState;
 		this.serialString = this.serialize(levelWrapper);
@@ -191,11 +185,21 @@ public class BlockStateWrapper implements IBlockStateWrapper
 		
 		// beacon base blocks
 		#if MC_VER <= MC_1_18_2
+		
+		// Used to handle older MC versions that don't have an simple way of getting the block's tags
+		List<String> oldBeaconBaseBlockNameList = Arrays.asList(
+			"iron_block",
+			"gold_block",
+			"diamond_block",
+			"emerald_block",
+			"netherite_block"
+		);
+		
 		// Older MC versions are harder to get block tags, so just use a static list to determine beacon blocks
 		boolean isBeaconBaseBlock = false;
-		for (int i = 0; i < OLD_BEACON_BASE_BLOCK_NAME_LIST.size(); i++)
+		for (int i = 0; i < oldBeaconBaseBlockNameList.size(); i++)
 		{
-			String baseBlockName = OLD_BEACON_BASE_BLOCK_NAME_LIST.get(i);
+			String baseBlockName = oldBeaconBaseBlockNameList.get(i);
 			if (lowercaseSerial.contains(baseBlockName))
 			{
 				isBeaconBaseBlock = true;
@@ -299,17 +303,20 @@ public class BlockStateWrapper implements IBlockStateWrapper
 		//LOGGER.trace("Created BlockStateWrapper ["+this.serialString+"] for ["+blockState+"] with material ID ["+this.EDhApiBlockMaterialId+"]");
 	}
 	
+	//endregion
+	
 	
 	
 	//====================//
 	// LodBuilder methods //
 	//====================//
+	//region
 	
 	/** 
 	 * Requires a {@link ILevelWrapper} since {@link BlockStateWrapper#deserialize(String,ILevelWrapper)} also requires one. 
 	 * This way the method won't accidentally be called before the deserialization can be completed.
 	 */
-	public static HashSet<IBlockStateWrapper> getRendererIgnoredBlocks(ILevelWrapper levelWrapper)
+	public static ObjectOpenHashSet<IBlockStateWrapper> getRendererIgnoredBlocks(ILevelWrapper levelWrapper)
 	{
 		// use the cached version if possible
 		if (rendererIgnoredBlocks != null)
@@ -317,7 +324,7 @@ public class BlockStateWrapper implements IBlockStateWrapper
 			return rendererIgnoredBlocks;
 		}
 		
-		HashSet<String> baseIgnoredBlock = new HashSet<>();
+		ObjectOpenHashSet<String> baseIgnoredBlock = new ObjectOpenHashSet<>();
 		baseIgnoredBlock.add(AIR_STRING);
 		rendererIgnoredBlocks = getAllBlockWrappers(Config.Client.Advanced.Graphics.Culling.ignoredRenderBlockCsv, baseIgnoredBlock, levelWrapper);
 		return rendererIgnoredBlocks;
@@ -326,7 +333,7 @@ public class BlockStateWrapper implements IBlockStateWrapper
 	 * Requires a {@link ILevelWrapper} since {@link BlockStateWrapper#deserialize(String,ILevelWrapper)} also requires one. 
 	 * This way the method won't accidentally be called before the deserialization can be completed.
 	 */
-	public static HashSet<IBlockStateWrapper> getRendererIgnoredCaveBlocks(ILevelWrapper levelWrapper)
+	public static ObjectOpenHashSet<IBlockStateWrapper> getRendererIgnoredCaveBlocks(ILevelWrapper levelWrapper)
 	{
 		// use the cached version if possible
 		if (rendererIgnoredCaveBlocks != null)
@@ -334,7 +341,7 @@ public class BlockStateWrapper implements IBlockStateWrapper
 			return rendererIgnoredCaveBlocks;
 		}
 		
-		HashSet<String> baseIgnoredBlock = new HashSet<>();
+		ObjectOpenHashSet<String> baseIgnoredBlock = new ObjectOpenHashSet<>();
 		baseIgnoredBlock.add(AIR_STRING);
 		rendererIgnoredCaveBlocks = getAllBlockWrappers(Config.Client.Advanced.Graphics.Culling.ignoredRenderCaveBlockCsv, baseIgnoredBlock, levelWrapper);
 		return rendererIgnoredCaveBlocks;
@@ -343,14 +350,19 @@ public class BlockStateWrapper implements IBlockStateWrapper
 	public static void clearRendererIgnoredBlocks() { rendererIgnoredBlocks = null; }
 	public static void clearRendererIgnoredCaveBlocks() { rendererIgnoredCaveBlocks = null; }
 	
+	//endregion
 	
 	
+	
+	//=====================//
 	// lod builder helpers //
+	//=====================//
+	//region
 	
-	private static HashSet<IBlockStateWrapper> getAllBlockWrappers(ConfigEntry<String> config, HashSet<String> baseResourceLocations, ILevelWrapper levelWrapper)
+	private static ObjectOpenHashSet<IBlockStateWrapper> getAllBlockWrappers(ConfigEntry<String> config, ObjectOpenHashSet<String> baseResourceLocations, ILevelWrapper levelWrapper)
 	{
 		// get the base blocks 
-		HashSet<String> blockStringList = new HashSet<>();
+		ObjectOpenHashSet<String> blockStringList = new ObjectOpenHashSet<>();
 		if (baseResourceLocations != null)
 		{
 			blockStringList.addAll(baseResourceLocations);	
@@ -365,10 +377,10 @@ public class BlockStateWrapper implements IBlockStateWrapper
 		
 		return getAllBlockWrappers(blockStringList, levelWrapper);
 	}
-	private static HashSet<IBlockStateWrapper> getAllBlockWrappers(HashSet<String> blockResourceLocationSet, ILevelWrapper levelWrapper)
+	private static ObjectOpenHashSet<IBlockStateWrapper> getAllBlockWrappers(ObjectOpenHashSet<String> blockResourceLocationSet, ILevelWrapper levelWrapper)
 	{
 		// deserialize each of the given resource locations
-		HashSet<IBlockStateWrapper> blockStateWrappers = new HashSet<>();
+		ObjectOpenHashSet<IBlockStateWrapper> blockStateWrappers = new ObjectOpenHashSet<>();
 		for (String blockResourceLocation : blockResourceLocationSet)
 		{
 			try
@@ -417,11 +429,14 @@ public class BlockStateWrapper implements IBlockStateWrapper
 		return blockStateWrappers;
 	}
 	
+	//endregion
+	
 	
 	
 	//=================//
 	// wrapper methods //
 	//=================//
+	//region
 	
 	@Override
 	public int getOpacity() { return this.opacity; }
@@ -529,25 +544,37 @@ public class BlockStateWrapper implements IBlockStateWrapper
 	public boolean isAir() { return this.isAir(this.blockState); }
 	public boolean isAir(BlockState blockState) { return blockState == null || blockState.isAir(); }
 	
+	private Boolean blockIsSolid = null;
 	@Override
 	public boolean isSolid()
 	{
-		if (this.isAir())
+		if (this.isAir() 
+			|| this.blockState == null) // == null isn't necessary since its handled in isAir() but is here to prevent intellij from complaining
 		{
 			return false;
 		}
 		
+		// cached since getCollisionShape() is a dictionary lookup that allocates objects
+		// and this call is used in a high traffic location
+		if (this.blockIsSolid != null)
+		{
+			return this.blockIsSolid;
+		}
+		
+		
         #if MC_VER < MC_1_20_1
-		return this.blockState.getMaterial().isSolid();
+		this.blockIsSolid = this.blockState.getMaterial().isSolid();
         #else
-		return !this.blockState.getCollisionShape(EmptyBlockGetter.INSTANCE, BlockPos.ZERO).isEmpty();
+		this.blockIsSolid = !this.blockState.getCollisionShape(EmptyBlockGetter.INSTANCE, BlockPos.ZERO).isEmpty();
         #endif
+		return this.blockIsSolid;
 	}
 	
 	@Override
 	public boolean isLiquid()
 	{
-		if (this.isAir())
+		if (this.isAir()
+			|| this.blockState == null) // == null isn't necessary since its handled in isAir() but is here to prevent intellij from complaining
 		{
 			return false;
 		}
@@ -579,11 +606,14 @@ public class BlockStateWrapper implements IBlockStateWrapper
 	@Override
 	public String toString() { return this.getSerialString(); }
 	
+	//endregion
+	
 	
 	
 	//=======================//
 	// serialization methods //
 	//=======================//
+	//region
 	
 	private String serialize(ILevelWrapper levelWrapper)
 	{
@@ -811,11 +841,14 @@ public class BlockStateWrapper implements IBlockStateWrapper
 		return stringBuilder.toString();
 	}
 	
+	//endregion
+	
 	
 	
 	//==============//
 	// Iris methods //
 	//==============//
+	//region
 	
 	private EDhApiBlockMaterial calculateEDhApiBlockMaterialId() 
 	{
@@ -865,7 +898,10 @@ public class BlockStateWrapper implements IBlockStateWrapper
 		{
 			return EDhApiBlockMaterial.METAL;
 		}
-		else if (serialString.contains("grass_block"))
+		else if (
+			serialString.contains("grass_block")
+			|| serialString.contains("grass_slab")
+			) 
 		{
 			return EDhApiBlockMaterial.GRASS;
 		}
@@ -920,4 +956,7 @@ public class BlockStateWrapper implements IBlockStateWrapper
 		}
 	}
 	
+	//endregion
+	
+	
 }

common/src/main/java/com/seibel/distanthorizons/common/wrappers/block/ClientBlockStateColorCache.java

@@ -322,7 +322,7 @@ public class ClientBlockStateColorCache
 		return quads;
 	}
 	
-	//TODO: Perhaps make this not just use the first frame?
+	/** if multiple frames are present, just the first one will be used */
 	private static int calculateColorFromTexture(TextureAtlasSprite texture, EColorMode colorMode)
 	{
 		int count = 0;

common/src/main/java/com/seibel/distanthorizons/common/wrappers/chunk/ChunkWrapper.java

@@ -41,6 +41,7 @@ import net.minecraft.world.level.levelgen.Heightmap;
 import com.seibel.distanthorizons.core.logging.DhLogger;
 
 import java.util.*;
+import java.util.concurrent.ConcurrentHashMap;
 
 #if MC_VER >= MC_1_17_1
 import net.minecraft.core.QuartPos;
@@ -81,6 +82,8 @@ public class ChunkWrapper implements IChunkWrapper
 	private static final ThreadLocal<BlockPos.MutableBlockPos> MUTABLE_BLOCK_POS_REF = ThreadLocal.withInitial(() -> new BlockPos.MutableBlockPos());
 	private static final ThreadLocal<MutableBlockPosWrapper> MUTABLE_BLOCK_POS_WRAPPER_REF = ThreadLocal.withInitial(() -> new MutableBlockPosWrapper());
 	
+	public static final Set<String> LOGGED_BLOCK_GET_ERRORS = Collections.newSetFromMap(new ConcurrentHashMap<String, Boolean>());
+	
 	private static boolean heightmapThreadWarningLogged = false;
 	
 	
@@ -250,6 +253,7 @@ public class ChunkWrapper implements IChunkWrapper
 		if (heightmapThreadWarningLogged 
 			&& !DhApi.isDhThread())
 		{
+			heightmapThreadWarningLogged = true;
 			LOGGER.warn("ChunkWrapper Height maps created on non-DH thread ["+Thread.currentThread().getName()+"]. This may cause stuttering.");
 		}
 		
@@ -371,9 +375,20 @@ public class ChunkWrapper implements IChunkWrapper
 		blockPos.setY(relY);
 		blockPos.setZ(relZ);
 		
-		// TODO copy into pooled array, this isn't thread safe and can cause MC to throw errors if the chunk is loaded
+		try
+		{
 			return BlockStateWrapper.fromBlockState(this.chunk.getBlockState(blockPos), this.wrappedLevel);
 		}
+		catch (Exception e)
+		{
+			if (LOGGED_BLOCK_GET_ERRORS.add(e.getMessage()))
+			{
+				LOGGER.warn("Failed to get block from chunk ["+this.chunkPos+"] at relative block pos ["+relX+","+relY+","+relZ+"], air will be used instead. This error message will only be logged once. error: ["+e.getMessage()+"].", e);
+			}
+			
+			return BlockStateWrapper.AIR;
+		}
+	}
 	
 	@Override
 	public IBlockStateWrapper getBlockState(int relX, int relY, int relZ, IMutableBlockPosWrapper mcBlockPos, IBlockStateWrapper guess)
@@ -385,8 +400,20 @@ public class ChunkWrapper implements IChunkWrapper
 		pos.setY(relY);
 		pos.setZ(relZ);
 	
+		try
+		{
 			return BlockStateWrapper.fromBlockState(this.chunk.getBlockState(pos), this.wrappedLevel, guess);
 		}
+			catch (Exception e)
+		{
+			if (LOGGED_BLOCK_GET_ERRORS.add(e.getMessage()))
+			{
+				LOGGER.warn("Failed to get block from chunk ["+this.chunkPos+"] at relative block pos ["+relX+","+relY+","+relZ+"], air will be used instead. This error message will only be logged once. error: ["+e.getMessage()+"].", e);
+			}
+			
+			return BlockStateWrapper.AIR;
+		}
+	}
 	
 	/**
 	
@@ -413,8 +440,10 @@ public class ChunkWrapper implements IChunkWrapper
 			LevelChunkSection section = sections[i];
 			if (section != null)
 			{
-	            // TODO implement section cloning for older MC versions, only 1.21.4 MC (and maybe other semi recent versions) have a clean way to handle this
+	            // Implementation notes:
-	            // TODO we probably want a wrapper object instead
+	            // implement section cloning for older MC versions, only 1.21.4 MC (and maybe other semi recent versions) have a clean way to handle this
+	            // we probably want a wrapper object instead
+	            
 				#if MC_VER < MC_1_21_4
 				this.levelChunkSections[i] = section;
 				#else

common/src/main/java/com/seibel/distanthorizons/common/wrappers/gui/ClassicConfigGUI.java

@@ -27,7 +27,6 @@ import com.seibel.distanthorizons.core.logging.DhLoggerBuilder;
 import com.seibel.distanthorizons.core.util.AnnotationUtil;
 import com.seibel.distanthorizons.core.wrapperInterfaces.config.IConfigGui;
 import com.seibel.distanthorizons.core.wrapperInterfaces.config.ILangWrapper;
-import com.seibel.distanthorizons.core.wrapperInterfaces.minecraft.IMinecraftClientWrapper;
 import com.seibel.distanthorizons.coreapi.ModInfo;
 import net.minecraft.ChatFormatting;
 import net.minecraft.client.Minecraft;
@@ -124,9 +123,9 @@ public class ClassicConfigGUI
 	
 	/** if you want to get this config gui's screen call this */
 	public static Screen getScreen(Screen parent, String category)
-	{ return new ConfigScreen(parent, category); }
+	{ return new DhConfigScreen(parent, category); }
 	
-	private static class ConfigScreen extends DhScreen
+	private static class DhConfigScreen extends DhScreen
 	{
 		private static final ILangWrapper LANG_WRAPPER = SingletonInjector.INSTANCE.get(ILangWrapper.class);
 		
@@ -146,7 +145,7 @@ public class ClassicConfigGUI
 		// constructor //
 		//=============//
 		
-		protected ConfigScreen(Screen parent, String category)
+		protected DhConfigScreen(Screen parent, String category)
 		{
 			super(Translatable(
 					LANG_WRAPPER.langExists(ModInfo.ID + ".config" + (category.isEmpty() ? "." + category : "") + ".title") ?
@@ -303,6 +302,10 @@ public class ClassicConfigGUI
 				{
 					setupTextMenuOption(configEntry, Double::parseDouble, DECIMAL_ONLY_REGEX, false);
 				}
+				else if (configValueClass == Float.class)
+				{
+					setupTextMenuOption(configEntry, Float::parseFloat, DECIMAL_ONLY_REGEX, false);
+				}
 				else if (configValueClass == String.class || configValueClass == List.class)
 				{
 					// For string or list
@@ -319,6 +322,10 @@ public class ClassicConfigGUI
 					Class<? extends Enum<?>> configEnumClass = (Class<? extends Enum<?>>) configValueClass;
 					setupEnumMenuOption(enumConfigEntry, configEnumClass);
 				}
+				else
+				{
+					LOGGER.error("No definition for config with type: ["+configValueClass.getName()+"], for config: ["+configMenuOption.name+"].");
+				}
 			}
 			
 		}
@@ -574,7 +581,7 @@ public class ClassicConfigGUI
 							optionFieldPosX, optionFieldPosZ,
 							ConfigScreenConfigs.OPTION_FIELD_WIDTH - 4, ConfigScreenConfigs.CATEGORY_BUTTON_HEIGHT,
 							Translatable(""));
-					widget.setMaxLength(ConfigScreenConfigs.OPTION_FIELD_WIDTH);
+					widget.setMaxLength(3_000_000); // hopefully 3 million characters should be enough for any normal use-case, lol
 					widget.insertText(String.valueOf(configEntry.get()));
 					
 					Predicate<String> processor = configGuiInfo.tooltipFunction.apply(widget, this.doneButton);
@@ -758,7 +765,7 @@ public class ClassicConfigGUI
 			}
 			
 			
-			ButtonEntry button = ButtonEntry.BUTTON_BY_WIDGET.get(hoveredWidget);
+			DhButtonEntry button = DhButtonEntry.BUTTON_BY_WIDGET.get(hoveredWidget);
 			
 			
 			// A quick fix for tooltips on linked entries
@@ -824,7 +831,7 @@ public class ClassicConfigGUI
 	// helper classes //
 	//================//
 	
-	public static class ConfigListWidget extends ContainerObjectSelectionList<ButtonEntry>
+	public static class ConfigListWidget extends ContainerObjectSelectionList<DhButtonEntry>
 	{
 		Font textRenderer;
 		
@@ -840,15 +847,15 @@ public class ClassicConfigGUI
 			this.textRenderer = minecraftClient.font;
 		}
 		
-		public void addButton(ConfigScreen gui, AbstractConfigBase dhConfigType, AbstractWidget button, AbstractWidget resetButton, AbstractWidget indexButton, Component text)
+		public void addButton(DhConfigScreen gui, AbstractConfigBase dhConfigType, AbstractWidget button, AbstractWidget resetButton, AbstractWidget indexButton, Component text)
-		{ this.addEntry(new ButtonEntry(gui, dhConfigType, button, text, resetButton, indexButton)); }
+		{ this.addEntry(new DhButtonEntry(gui, dhConfigType, button, text, resetButton, indexButton)); }
 		
 		@Override
 		public int getRowWidth() { return 10_000; }
 		
 		public AbstractWidget getHoveredButton(double mouseX, double mouseY)
 		{
-			for (ButtonEntry buttonEntry : this.children())
+			for (DhButtonEntry buttonEntry : this.children())
 			{
 				AbstractWidget button = buttonEntry.button;
 				if (button != null 
@@ -879,13 +886,13 @@ public class ClassicConfigGUI
 	}
 	
 	
-	public static class ButtonEntry extends ContainerObjectSelectionList.Entry<ButtonEntry>
+	public static class DhButtonEntry extends ContainerObjectSelectionList.Entry<DhButtonEntry>
 	{
 		private static final Font textRenderer = Minecraft.getInstance().font;
 		
 		private final AbstractWidget button;
 		
-		private final ConfigScreen gui;
+		private final DhConfigScreen gui;
 		private final AbstractConfigBase dhConfigType;
 		
 		private final AbstractWidget resetButton;
@@ -897,12 +904,12 @@ public class ClassicConfigGUI
 		private final EConfigCommentTextPosition textPosition;
 		
 		public static final Map<AbstractWidget, Component> TEXT_BY_WIDGET = new HashMap<>();
-		/// TODO we should just use a wrapper or something
+		public static final Map<AbstractWidget, DhButtonEntry> BUTTON_BY_WIDGET = new HashMap<>();
-		public static final Map<AbstractWidget, ButtonEntry> BUTTON_BY_WIDGET = new HashMap<>();
 		
 		
 		
-		public ButtonEntry(ConfigScreen gui, AbstractConfigBase dhConfigType, 
+		public DhButtonEntry(
+			DhConfigScreen gui, AbstractConfigBase dhConfigType, 
 				AbstractWidget button, Component text, AbstractWidget resetButton, AbstractWidget indexButton)
 		{
 			TEXT_BY_WIDGET.put(button, text);
@@ -956,11 +963,17 @@ public class ClassicConfigGUI
 		{
 			try
 			{
+				// setting the "y" variable is necessary so each child item
+				// renders at the correct height,
+				// if not set they will render off-screen.
 				#if MC_VER < MC_1_21_9
+				// Y value passed in from method args
 				#else
-				int y = this.getY(); /// TODO why is the Y value being set during render?
+				int y = this.getY();
 				#endif
 				
+				
+				
 				if (this.button != null)
 				{
 					SetY(this.button, y);

common/src/main/java/com/seibel/distanthorizons/common/wrappers/gui/GetConfigScreen.java

@@ -3,7 +3,6 @@ package com.seibel.distanthorizons.common.wrappers.gui;
 import com.seibel.distanthorizons.core.config.ConfigHandler;
 import com.seibel.distanthorizons.core.logging.DhLoggerBuilder;
 import com.seibel.distanthorizons.coreapi.ModInfo;
-import com.seibel.distanthorizons.core.config.gui.JavaScreenHandlerScreen;
 import net.minecraft.client.gui.screens.Screen;
 import com.seibel.distanthorizons.core.logging.DhLogger;
 
@@ -11,21 +10,13 @@ public class GetConfigScreen
 {
 	protected static final DhLogger LOGGER = new DhLoggerBuilder().build();
 	
-	public static EType useScreen = EType.Classic;
-	
-	public enum EType
-	{
-		Classic,
-		JavaSwing;
-	}
-	
 	public static Screen getScreen(Screen parent)
 	{
-		// TODO it'd be nice to have this run automatically on startup
-		//  but this will only work once MC has added our lang file,
-		//  which won't be for sure added until we request a GUI
 		if (ModInfo.IS_DEV_BUILD)
 		{
+			// it'd be nice to have this run automatically on startup
+			// but this will only work once MC has added our lang file,
+			// which won't be for sure added until we request a GUI
 			String missingLangEntries = ConfigHandler.INSTANCE.generateLang(true, true);
 			
 			// trim to remove any newlines/spaces
@@ -39,17 +30,7 @@ public class GetConfigScreen
 			}
 		}
 		
-		
-		switch (useScreen)
-		{
-			case Classic:
 		return ClassicConfigGUI.getScreen(parent, "client");
-			case JavaSwing:
-				//return MinecraftScreen.getScreen(parent, new JavaScreenHandlerScreen(new ConfigScreen()), ModInfo.ID + ".title");
-				return MinecraftScreen.getScreen(parent, new JavaScreenHandlerScreen(new JavaScreenHandlerScreen.ExampleScreen()), ModInfo.ID + ".title");
-			default:
-				throw new IllegalArgumentException("No config screen implementation defined for ["+useScreen+"].");
-		}
 	}
 	
 }

common/src/main/java/com/seibel/distanthorizons/common/wrappers/gui/TexturedButtonWidget.java

@@ -106,8 +106,7 @@ public class TexturedButtonWidget extends Button
 		#if MC_VER < MC_1_20_2
 		super(x, y, width, height, u, v, hoveredVOffset, textureResourceLocation, textureWidth, textureHeight, pressAction, text);
 		#else
-		// We don't pass on the text option as otherwise it will render (we normally pass it for narration)
+		// We don't pass in the text option since it will render (we normally pass it in for narration)
-		// TODO: Find a fix for it
 		super(x, y, width, height, Component.empty(), pressAction, DEFAULT_NARRATION);
 		
 		this.u = u;

common/src/main/java/com/seibel/distanthorizons/common/wrappers/gui/updater/ChangelogScreen.java

@@ -37,8 +37,6 @@ import java.util.*;
  *
  * @author coolGi
  */
-// TODO: After finishing the config, rewrite this in openGL as well
-// TODO: Make this
 public class ChangelogScreen extends DhScreen
 {
 	private static final DhLogger LOGGER = new DhLoggerBuilder().build();

common/src/main/java/com/seibel/distanthorizons/common/wrappers/gui/updater/UpdateModScreen.java

@@ -34,8 +34,6 @@ import java.util.*;
  *
  * @author coolGi
  */
-// TODO: After finishing the config, rewrite this in Java Swing as well
-// and also maybe add this suggestion https://discord.com/channels/881614130614767666/1035863487110467625/1035949054485594192
 public class UpdateModScreen extends DhScreen
 {
 	private static final DhLogger LOGGER = new DhLoggerBuilder().build();
@@ -105,7 +103,7 @@ public class UpdateModScreen extends DhScreen
 					195, 65,
 					// Create the button and tell it where to go
 					// For now it goes to the client option by default
-					(buttonWidget) -> System.out.println("Nice, you found an easter egg :)"), // TODO: Add a proper easter egg to pressing the logo (maybe with confetti)
+					(buttonWidget) -> LOGGER.info("Nice, you found an Easter egg :)"),
 					// Add a title to the button
 					Translatable(ModInfo.ID + ".updater.title"),
 					// Dont render the background of the button
@@ -186,9 +184,7 @@ public class UpdateModScreen extends DhScreen
 		// background blur is already being rendered, rendering again causes the game to crash
 		#endif
 		
-		// TODO: add the tooltips for the buttons
 		super.render(matrices, mouseX, mouseY, delta); // Render the buttons
-		// TODO: Add tooltips
 		
 		// Render the text's
 		this.DhDrawCenteredString(matrices, this.font, 

common/src/main/java/com/seibel/distanthorizons/common/wrappers/minecraft/MinecraftClientWrapper.java

@@ -24,7 +24,7 @@ import java.io.File;
 import com.mojang.blaze3d.platform.Window;
 import com.seibel.distanthorizons.common.wrappers.world.ClientLevelWrapper;
 import com.seibel.distanthorizons.core.file.structure.ClientOnlySaveStructure;
-import com.seibel.distanthorizons.core.render.glObject.GLProxy;
+import com.seibel.distanthorizons.core.render.RenderThreadTaskHandler;
 import com.seibel.distanthorizons.core.wrapperInterfaces.world.IClientLevelWrapper;
 import com.seibel.distanthorizons.coreapi.ModInfo;
 import com.seibel.distanthorizons.core.logging.DhLoggerBuilder;
@@ -56,6 +56,11 @@ import net.minecraft.network.chat.TextComponent;
 import net.minecraft.util.profiling.Profiler;
 #endif
 
+#if MC_VER <= MC_1_21_10
+import net.minecraft.client.GraphicsStatus;
+#else
+#endif
+
 /**
  * A singleton that wraps the Minecraft object.
  *
@@ -76,6 +81,7 @@ public class MinecraftClientWrapper implements IMinecraftClientWrapper, IMinecra
 	//======================//
 	// multiplayer handling //
 	//======================//
+	//region
 	
 	@Override
 	public boolean hasSinglePlayerServer() { return MINECRAFT.hasSingleplayerServer(); }
@@ -125,11 +131,14 @@ public class MinecraftClientWrapper implements IMinecraftClientWrapper, IMinecra
 		return (server != null) ? server.version.getString() : "UNKOWN";
 	}
 	
+	//endregion
+	
 	
 	
 	//=================//
 	// player handling //
 	//=================//
+	//region
 	
 	public LocalPlayer getPlayer() { return MINECRAFT.player; }
 	
@@ -166,11 +175,14 @@ public class MinecraftClientWrapper implements IMinecraftClientWrapper, IMinecra
 		return new DhChunkPos(playerPos.x, playerPos.z);
 	}
 	
+	//endregion
+	
 	
 	
 	//================//
 	// level handling //
 	//================//
+	//region
 	
 	@Nullable
 	@Override
@@ -189,11 +201,14 @@ public class MinecraftClientWrapper implements IMinecraftClientWrapper, IMinecra
 		return ClientLevelWrapper.getWrapper(level, bypassLevelKeyManager);
 	}
 	
+	//endregion
+	
 	
 	
 	//===========//
 	// messaging //
 	//===========//
+	//region
 	
 	@Override
 	public void sendChatMessage(String string)
@@ -210,7 +225,7 @@ public class MinecraftClientWrapper implements IMinecraftClientWrapper, IMinecra
 		player.displayClientMessage(net.minecraft.network.chat.Component.translatable(string), /*isOverlay*/false);
 		#else
 		
-		GLProxy.queueRunningOnRenderThread(() -> 
+		RenderThreadTaskHandler.INSTANCE.queueRunningOnRenderThread(() -> 
 		{
 			player.displayClientMessage(net.minecraft.network.chat.Component.translatable(string), /*isOverlay*/false);
 		});
@@ -233,14 +248,19 @@ public class MinecraftClientWrapper implements IMinecraftClientWrapper, IMinecra
         #endif
 	}
 	
+	//endregion
+	
 	
 	
 	//==========================//
 	// vanilla option overrides //
 	//==========================//
+	//region
 	
 	public void disableVanillaClouds()
 	{
+		LOGGER.info("Disabling vanilla clouds... This is done to prevent vanilla clouds from rendering on top of Distant Horizons LODs.");
+		
 		#if MC_VER <= MC_1_18_2
 		MINECRAFT.options.renderClouds = CloudStatus.OFF;
 		#else
@@ -250,6 +270,8 @@ public class MinecraftClientWrapper implements IMinecraftClientWrapper, IMinecra
 	
 	public void disableVanillaChunkFadeIn()
 	{
+		LOGGER.info("Disabling vanilla chunk fade in... This is done to prevent vanilla chunks from flashing on the Distant Horizons boarder when moving (which is distracting).");
+		
 		#if MC_VER <= MC_1_21_10
 		// chunk fade in was added MC 1.21.11
 		#else
@@ -257,11 +279,41 @@ public class MinecraftClientWrapper implements IMinecraftClientWrapper, IMinecra
 		#endif
 	}
 	
+	public void disableFabulousTransparency()
+	{
+		String reasoning = "This is done to fix vanilla chunks (specifically water blocks) not fading into Distant Horizons LODs when DH's 'Vanilla Fade' option is enabled.";
+		
+		#if MC_VER <= MC_1_18_2
+		LOGGER.info("Disabling fabulous graphics... "+reasoning);
+		
+		GraphicsStatus oldGraphicsStatus = MINECRAFT.options.graphicsMode;
+		if (oldGraphicsStatus == GraphicsStatus.FABULOUS)
+		{
+			MINECRAFT.options.graphicsMode = GraphicsStatus.FANCY;
+		}
+		#elif MC_VER <= MC_1_21_10
+		LOGGER.info("Disabling fabulous graphics... "+reasoning);
+		
+		GraphicsStatus oldGraphicsStatus = MINECRAFT.options.graphicsMode().get();
+		if (oldGraphicsStatus == GraphicsStatus.FABULOUS)
+		{
+			MINECRAFT.options.graphicsMode().set(GraphicsStatus.FANCY);
+		}
+		#else
+		LOGGER.info("Disabling improved transparency... "+reasoning);
+			
+		MINECRAFT.options.improvedTransparency().set(false);
+		#endif
+	}
+	
+	//endregion
+	
 	
 	
 	//======//
 	// misc //
 	//======//
+	//region
 	
 	/** 
 	 * no override and not included in {@link IMinecraftClientWrapper}
@@ -315,20 +367,29 @@ public class MinecraftClientWrapper implements IMinecraftClientWrapper, IMinecra
 		#endif
 	}
 	
+	@Override
+	public void executeOnRenderThread(Runnable runnable) { MINECRAFT.execute(runnable); }
+	
+	//endregion
+	
 	
 	
 	//=============//
 	// mod support //
 	//=============//
+	//region
 	
 	@Override
 	public Object getOptionsObject() { return MINECRAFT.options; }
 	
+	//endregion
+	
 	
 	
 	//========//
 	// shared //
 	//========//
+	//region
 	
 	@Override
 	public boolean isDedicatedServer() { return false; }
@@ -350,6 +411,8 @@ public class MinecraftClientWrapper implements IMinecraftClientWrapper, IMinecra
 		}
 	}
 	
+	//endregion
+	
 	
 	
 }

common/src/main/java/com/seibel/distanthorizons/common/wrappers/minecraft/MinecraftGLWrapper.java

@@ -25,8 +25,8 @@ import com.mojang.blaze3d.platform.GlStateManager;
 import com.mojang.blaze3d.opengl.GlStateManager;
 #endif
 
+import com.seibel.distanthorizons.core.jar.EPlatform;
 import com.seibel.distanthorizons.core.logging.DhLoggerBuilder;
-import com.seibel.distanthorizons.core.wrapperInterfaces.minecraft.IMinecraftGLWrapper;
 
 import com.seibel.distanthorizons.core.logging.DhLogger;
 import org.lwjgl.opengl.GL32;
@@ -50,7 +50,7 @@ import org.lwjgl.opengl.GL32;
  * This may slow down some low end GPUs that are driver limited,
  * however James would rather have slow correct rendering vs fast broken rendering.
  */
-public class MinecraftGLWrapper implements IMinecraftGLWrapper
+public class MinecraftGLWrapper
 {
 	public static final MinecraftGLWrapper INSTANCE = new MinecraftGLWrapper();
 	
@@ -66,14 +66,12 @@ public class MinecraftGLWrapper implements IMinecraftGLWrapper
 	// scissor //
 	
 	/** @see GL32#GL_SCISSOR_TEST */
-	@Override
 	public void enableScissorTest() 
 	{
 		GL32.glEnable(GL32.GL_SCISSOR_TEST);
 		GlStateManager._enableScissorTest(); 
 	}
 	/** @see GL32#GL_SCISSOR_TEST */
-	@Override
 	public void disableScissorTest() 
 	{ 
 		GL32.glDisable(GL32.GL_SCISSOR_TEST);
@@ -92,14 +90,12 @@ public class MinecraftGLWrapper implements IMinecraftGLWrapper
 	// depth //
 	
 	/** @see GL32#GL_DEPTH_TEST */
-	@Override
 	public void enableDepthTest() 
 	{
 		GL32.glEnable(GL32.GL_DEPTH_TEST);
 		GlStateManager._enableDepthTest(); 
 	}
 	/** @see GL32#GL_DEPTH_TEST */
-	@Override
 	public void disableDepthTest() 
 	{
 		GL32.glDisable(GL32.GL_DEPTH_TEST);
@@ -107,7 +103,6 @@ public class MinecraftGLWrapper implements IMinecraftGLWrapper
 	}
 	
 	/** @see GL32#glDepthFunc(int)  */
-	@Override
 	public void glDepthFunc(int func) 
 	{ 
 		GL32.glDepthFunc(func);
@@ -115,14 +110,12 @@ public class MinecraftGLWrapper implements IMinecraftGLWrapper
 	}
 	
 	/** @see GL32#glDepthMask(boolean) */
-	@Override
 	public void enableDepthMask() 
 	{
 		GL32.glDepthMask(true);
 		GlStateManager._depthMask(true); 
 	}
 	/** @see GL32#glDepthMask(boolean) */
-	@Override
 	public void disableDepthMask() 
 	{
 		GL32.glDepthMask(false);
@@ -133,14 +126,12 @@ public class MinecraftGLWrapper implements IMinecraftGLWrapper
 	// blending //
 	
 	/** @see GL32#GL_BLEND */
-	@Override
 	public void enableBlend() 
 	{
 		GL32.glEnable(GL32.GL_BLEND);
 		GlStateManager._enableBlend();
 	}
 	/** @see GL32#GL_BLEND */
-	@Override
 	public void disableBlend() 
 	{
 		GL32.glDisable(GL32.GL_BLEND);
@@ -148,7 +139,6 @@ public class MinecraftGLWrapper implements IMinecraftGLWrapper
 	}
 	
 	/** @see GL32#glBlendFunc */
-	@Override
 	public void glBlendFunc(int sfactor, int dfactor) 
 	{
 		GL32.glBlendFunc(sfactor, dfactor);
@@ -158,7 +148,6 @@ public class MinecraftGLWrapper implements IMinecraftGLWrapper
 		#endif
 	}
 	/** @see GL32#glBlendFuncSeparate */
-	@Override
 	public void glBlendFuncSeparate(int sfactorRGB, int dfactorRGB, int sfactorAlpha, int dfactorAlpha) 
 	{
 		GL32.glBlendFuncSeparate(sfactorRGB, dfactorRGB, sfactorAlpha, dfactorAlpha);
@@ -169,7 +158,6 @@ public class MinecraftGLWrapper implements IMinecraftGLWrapper
 	// frame buffers //
 	
 	/** @see GL32#glBindFramebuffer */
-	@Override
 	public void glBindFramebuffer(int target, int framebuffer) 
 	{
 		GL32.glBindFramebuffer(target, framebuffer);
@@ -180,16 +168,29 @@ public class MinecraftGLWrapper implements IMinecraftGLWrapper
 	// buffers //
 	
 	/** @see GL32#glGenBuffers() */
-	@Override
 	public int glGenBuffers()
-	{ return GlStateManager._glGenBuffers(); }
+	{ return GL32.glGenBuffers(); }
 	
 	/** @see GL32#glDeleteBuffers(int) */
-	@Override
 	public void glDeleteBuffers(int buffer)
 	{
 		GL32.glDeleteBuffers(buffer);
 		
+		// attempt to fix a bug with Mac where de-allocated buffers
+		// are still being used, causing a SIGSEGV native crash
+		// and/or corrupting native memory
+		if (EPlatform.get() == EPlatform.MACOS)
+		{
+			// force the delete buffer (and any other in-flight) GL
+			// commands to finish before continuing
+			GL32.glFinish();
+			
+			// James hates this idea.
+			// He kinda hopes it doesn't help,
+			// but maybe metal's API just doesn't finish correctly so we need to wait a moment longer before continuing.
+			try { Thread.sleep(1); } catch (InterruptedException ignore) { }
+		}
+		
 		// MC's implementation has a bug where it will throw:
 		// GL_INVALID_OPERATION in glBufferData(immutable)
 		// when attempting to delete Storage Buffers
@@ -201,14 +202,12 @@ public class MinecraftGLWrapper implements IMinecraftGLWrapper
 	// culling //
 	
 	/** @see GL32#GL_CULL_FACE */
-	@Override
 	public void enableFaceCulling() 
 	{
 		GL32.glEnable(GL32.GL_CULL_FACE);
 		GlStateManager._enableCull(); 
 	}
 	/** @see GL32#GL_CULL_FACE */
-	@Override
 	public void disableFaceCulling() 
 	{
 		GL32.glDisable(GL32.GL_CULL_FACE);
@@ -219,27 +218,22 @@ public class MinecraftGLWrapper implements IMinecraftGLWrapper
 	// textures //
 	
 	/** @see GL32#glGenTextures() */
-	@Override
 	public int glGenTextures() { return GlStateManager._genTexture(); }
 	/** @see GL32#glDeleteTextures(int) */
-	@Override
 	public void glDeleteTextures(int texture) { GlStateManager._deleteTexture(texture); }
 	
 	/** @see GL32#glActiveTexture(int) */
-	@Override
 	public void glActiveTexture(int textureId) 
 	{ 
 		GL32.glActiveTexture(textureId);
 		GlStateManager._activeTexture(textureId);
 	}
-	@Override
 	public int getActiveTexture() { return GL32.glGetInteger(GL32.GL_TEXTURE_BINDING_2D); }
 	
 	/**
 	 * Always binds to {@link GL32#GL_TEXTURE_2D}
 	 * @see GL32#glBindTexture(int, int)
 	 */
-	@Override
 	public void glBindTexture(int texture) 
 	{
 		GL32.glBindTexture(GL32.GL_TEXTURE_2D, texture);
@@ -248,5 +242,4 @@ public class MinecraftGLWrapper implements IMinecraftGLWrapper
 	
 	
 	
-	
 }

common/src/main/java/com/seibel/distanthorizons/common/wrappers/minecraft/MinecraftRenderWrapper.java

@@ -29,7 +29,6 @@ import com.seibel.distanthorizons.api.enums.config.EDhApiLodShading;
 import com.seibel.distanthorizons.common.wrappers.McObjectConverter;
 import com.seibel.distanthorizons.common.wrappers.misc.LightMapWrapper;
 import com.seibel.distanthorizons.core.config.Config;
-import com.seibel.distanthorizons.core.dependencyInjection.ModAccessorInjector;
 
 import com.seibel.distanthorizons.core.enums.EDhDirection;
 import com.seibel.distanthorizons.core.logging.DhLoggerBuilder;
@@ -86,6 +85,7 @@ import com.mojang.blaze3d.opengl.GlTexture;
 #if MC_VER <= MC_1_21_10
 #else
 import net.minecraft.world.attribute.EnvironmentAttributes;
+import com.mojang.blaze3d.textures.GpuTexture;
 #endif
 
 /**
@@ -175,6 +175,18 @@ public class MinecraftRenderWrapper implements IMinecraftRenderWrapper
 		return new Vec3d(projectedView.x, projectedView.y, projectedView.z);
 	}
 	
+	@Override
+	public float getPartialTickTime()
+	{
+		#if MC_VER < MC_1_21_1
+		return MC.getFrameTime();
+		#elif MC_VER < MC_1_21_3
+		return MC.getTimer().getRealtimeDeltaTicks();
+		#else
+		return MC.deltaTracker.getRealtimeDeltaTicks();
+		#endif
+	}
+	
 	@Override
 	public Color getFogColor(float partialTicks)
 	{
@@ -261,24 +273,16 @@ public class MinecraftRenderWrapper implements IMinecraftRenderWrapper
 	{
 		if (MC.level.dimensionType().hasSkyLight())
 		{
-			float frameTime;
-			#if MC_VER < MC_1_21_1
-			frameTime = MC.getFrameTime();
-			#elif MC_VER < MC_1_21_3
-			frameTime = MC.getTimer().getRealtimeDeltaTicks();
-			#elif MC_VER <= MC_1_21_10
-			frameTime = MC.deltaTracker.getGameTimeDeltaTicks();
-			#else
-			frameTime = 0f; // unused
-			#endif
-			
 			#if MC_VER < MC_1_17_1
+			float frameTime = this.getPartialTickTime();
 			Vec3 colorValues = MC.level.getSkyColor(MC.gameRenderer.getMainCamera().getBlockPosition(), frameTime);
 			return new Color((float) colorValues.x, (float) colorValues.y, (float) colorValues.z);
 			#elif MC_VER < MC_1_21_3
+			float frameTime = this.getPartialTickTime();
 			Vec3 colorValues = MC.level.getSkyColor(MC.gameRenderer.getMainCamera().getPosition(), frameTime);
 			return new Color((float) colorValues.x, (float) colorValues.y, (float) colorValues.z);
 			#elif MC_VER <= MC_1_21_10
+			float frameTime = this.getPartialTickTime();
 			int argbColorInt = MC.level.getSkyColor(MC.gameRenderer.getMainCamera().getPosition(), frameTime);
 			return ColorUtil.toColorObjARGB(argbColorInt);
 			#else
@@ -299,14 +303,23 @@ public class MinecraftRenderWrapper implements IMinecraftRenderWrapper
 	@Override
 	public int getRenderDistance()
 	{
-		#if MC_VER < MC_1_18_2
+		#if MC_VER <= MC_1_17_1
-		//FIXME: How to resolve this?
 		return MC.options.renderDistance;
 		#else
 		return MC.options.getEffectiveRenderDistance();
 		#endif
 	}
 	
+	@Override
+	public int getFrameLimit()
+	{
+		#if MC_VER <= MC_1_18_2
+		return MC.options.framerateLimit;
+		#else
+		return MC.options.framerateLimit().get();
+		#endif
+	}
+	
 	protected RenderTarget getRenderTarget() { return MC.getMainRenderTarget(); }
 	
 	@Override
@@ -475,6 +488,20 @@ public class MinecraftRenderWrapper implements IMinecraftRenderWrapper
 		wrapper.setLightmapId(tetxureId);
 	}
 	
+	#if MC_VER <= MC_1_21_10
+	#else
+	public void setLightmapGpuTexture(GpuTexture gpuTexture, IClientLevelWrapper level)
+	{
+		// Using ClientLevelWrapper as the key would be better, but we don't have a consistent way to create the same
+		// object for the same MC level and/or the same hash,
+		// so this will have to do for now
+		IDimensionTypeWrapper dimensionType = level.getDimensionType();
+
+		LightMapWrapper wrapper = this.lightmapByDimensionType.computeIfAbsent(dimensionType, (dimType) -> new LightMapWrapper());
+		wrapper.setLightmapGpuTexture(gpuTexture);
+	}
+	#endif
+	
 	@Override
 	public float getShade(EDhDirection lodDirection)
 	{

common/src/main/java/com/seibel/distanthorizons/common/wrappers/misc/LightMapWrapper.java

@@ -20,39 +20,64 @@
 package com.seibel.distanthorizons.common.wrappers.misc;
 
 import com.mojang.blaze3d.platform.NativeImage;
-import com.seibel.distanthorizons.core.dependencyInjection.SingletonInjector;
+import com.seibel.distanthorizons.common.render.blaze.wrappers.texture.BlazeTextureViewWrapper;
+import com.seibel.distanthorizons.common.wrappers.minecraft.MinecraftGLWrapper;
 import com.seibel.distanthorizons.core.logging.DhLoggerBuilder;
-import com.seibel.distanthorizons.core.wrapperInterfaces.minecraft.IMinecraftGLWrapper;
 import com.seibel.distanthorizons.core.wrapperInterfaces.misc.ILightMapWrapper;
 import com.seibel.distanthorizons.core.logging.DhLogger;
 import org.lwjgl.opengl.GL32;
 
+#if MC_VER < MC_1_21_3
 import java.nio.ByteBuffer;
+#else
+#endif
+
+#if MC_VER <= MC_1_21_10
+#else
+import com.mojang.blaze3d.textures.GpuTexture;
+#endif
 
 public class LightMapWrapper implements ILightMapWrapper
 {
-	private static final IMinecraftGLWrapper GLMC = SingletonInjector.INSTANCE.get(IMinecraftGLWrapper.class);
+	private static final MinecraftGLWrapper GLMC = MinecraftGLWrapper.INSTANCE;
 	private static final DhLogger LOGGER = new DhLoggerBuilder().build();
 	
+	/**
+	 * which texture index IE 0,1,2... the lightmap will be bound to. <Br> 
+	 * Related to but different from {@link GL32#GL_TEXTURE0}.
+	 */
+	public static final int GL_BOUND_INDEX = 0;
+	
 	private int textureId = 0;
 	
+	#if MC_VER <= MC_1_21_10
+	#else
+	private GpuTexture gpuTexture = null;
+	#endif
+	
+	private final BlazeTextureViewWrapper lightmapTextureWrapper = new BlazeTextureViewWrapper();
+	
 	
 	
 	//==============//
 	// constructors //
 	//==============//
+	//region
 	
 	public LightMapWrapper() { }
 	
+	//endregion
+	
 	
 	
 	//==================//
 	// lightmap syncing //
 	//==================//
+	//region
 	
 	public void uploadLightmap(NativeImage image)
 	{
-		#if MC_VER < MC_1_21_5
+		#if MC_VER < MC_1_21_3
 		int currentTexture = GLMC.getActiveTexture();
 		if (this.textureId == 0)
 		{
@@ -71,42 +96,52 @@ public class LightMapWrapper implements ILightMapWrapper
 			GLMC.glBindTexture(currentTexture);
 		}
 		#else 
-		throw new UnsupportedOperationException("setLightmapId should be used for MC versions after 1.21.5"); // TODO that MC version number is wrong, when did we actually start using setLightmapId()?
+		throw new UnsupportedOperationException("setLightmapId should be used for MC versions after 1.21.3");
 		#endif
 	}
 	private void createLightmap(NativeImage image)
 	{
-		#if MC_VER < MC_1_21_5
+		#if MC_VER < MC_1_21_3
 		this.textureId = GLMC.glGenTextures();
 		GLMC.glBindTexture(this.textureId);
 		GL32.glTexImage2D(GL32.GL_TEXTURE_2D, 0, image.format().glFormat(), image.getWidth(), image.getHeight(),
 				0, image.format().glFormat(), GL32.GL_UNSIGNED_BYTE, (ByteBuffer) null);
 		#else
-		throw new UnsupportedOperationException("setLightmapId should be used for MC versions after 1.21.5"); // TODO that MC version number is wrong, when did we actually start using setLightmapId()?
+		throw new UnsupportedOperationException("setLightmapId should be used for MC versions after 1.21.3");
 		#endif
 	}
 	
-	public void setLightmapId(int minecraftLightmapTetxureId)
+	public void setLightmapId(int minecraftLightmapTextureId)
 	{
 		// just use the MC texture ID
-		this.textureId = minecraftLightmapTetxureId;
+		this.textureId = minecraftLightmapTextureId;
 	}
 	
+	#if MC_VER <= MC_1_21_10
+	#else
+	public void setLightmapGpuTexture(GpuTexture gpuTexture)
+	{
+		this.gpuTexture = gpuTexture;
+		this.lightmapTextureWrapper.tryWrap(this.gpuTexture);
+	}
+	#endif
+	
+	//endregion
+	
 	
 	
 	//==============//
 	// lightmap use //
 	//==============//
+	//region
+	
+	public BlazeTextureViewWrapper getTextureViewWrapper() { return this.lightmapTextureWrapper; }
+	
+	public int getOpenGlId() { return this.textureId; }
+	
+	//endregion
 	
-	@Override
-	public void bind()
-	{
-		GLMC.glActiveTexture(GL32.GL_TEXTURE0);
-		GLMC.glBindTexture(this.textureId);
-	}
 	
-	@Override
-	public void unbind() { GLMC.glBindTexture(0); }
 	
 }
 

common/src/main/java/com/seibel/distanthorizons/common/wrappers/world/ClientLevelWrapper.java

@@ -87,21 +87,25 @@ public class ClientLevelWrapper implements IClientLevelWrapper
 	//=============//
 	// constructor //
 	//=============//
+	//region
 	
 	protected ClientLevelWrapper(ClientLevel level) { this.level = level; }
 	
+	//endregion
+	
 	
 	
 	//==================//
 	// instance methods //
 	//==================//
+	//region
 	
 	/** 
 	 * can be used when speed is important and the same level is likely to be passed in,
 	 * IE rendering.
 	 */
 	@Nullable
-	public static IClientLevelWrapper getWrapperIfDifferent(@Nullable IClientLevelWrapper levelWrapper, @NotNull ClientLevel level) // TODO handle null level
+	public static IClientLevelWrapper getWrapperIfDifferent(@Nullable IClientLevelWrapper levelWrapper, @NotNull ClientLevel level)
 	{
 		if (KEYED_CLIENT_LEVEL_MANAGER.isEnabled() && KEYED_CLIENT_LEVEL_MANAGER.getServerKeyedLevel() != levelWrapper)
 		{
@@ -201,11 +205,14 @@ public class ClientLevelWrapper implements IClientLevelWrapper
 		}
 	}
 	
+	//endregion
+	
 	
 	
 	//====================//
 	// base level methods //
 	//====================//
+	//region
 	
 	@Override
 	public int getBlockColor(DhBlockPos blockPos, IBiomeWrapper biome, FullDataSourceV2 fullDataSource, IBlockStateWrapper blockWrapper)
@@ -221,7 +228,6 @@ public class ClientLevelWrapper implements IClientLevelWrapper
 		return blockColorCache.getColor((BiomeWrapper) biome, fullDataSource, blockPos);
 	}
 	
-	
 	@Override
 	public int getDirtBlockColor()
 	{
@@ -245,24 +251,43 @@ public class ClientLevelWrapper implements IClientLevelWrapper
 	@Override 
 	public void clearBlockColorCache() { this.blockColorCacheByBlockState.clear(); }
 	
+	private IDimensionTypeWrapper dimensionTypeWrapper = null;
 	@Override
 	public IDimensionTypeWrapper getDimensionType()
 	{
-		#if MC_VER <= MC_1_21_10
+		// cached since dimensionType() is a dictionary lookup that allocates objects
-		return DimensionTypeWrapper.getDimensionTypeWrapper(this.level.dimensionType());
+		// and this call is used in a high traffic location
-		#else
+		if (this.dimensionTypeWrapper != null)
-		return DimensionTypeWrapper.getDimensionTypeWrapper(this.level.dimensionType(), this.getDimensionName());
+		{
-		#endif
+			return this.dimensionTypeWrapper;
 		}
 		
+		#if MC_VER <= MC_1_21_10
+		this.dimensionTypeWrapper = DimensionTypeWrapper.getDimensionTypeWrapper(this.level.dimensionType());
+		#else
+		this.dimensionTypeWrapper = DimensionTypeWrapper.getDimensionTypeWrapper(this.level.dimensionType(), this.getDimensionName());
+		#endif
+		return this.dimensionTypeWrapper;
+	}
+	
+	private String dimensionName = null;
 	@Override
 	public String getDimensionName()
 	{
+		// cached since toString() allocates a new string each time
+		// and this call is used in a high traffic location
+		if (this.dimensionName != null)
+		{
+			return this.dimensionName;
+		}
+		
+		
 		#if MC_VER <= MC_1_21_10
-		return this.level.dimension().location().toString();
+		this.dimensionName = this.level.dimension().location().toString();
 		#else
-		return this.level.dimension().identifier().toString();
+		this.dimensionName = this.level.dimension().identifier().toString();
 		#endif
+		return this.dimensionName;
 	}
 	
 	@Override
@@ -276,25 +301,72 @@ public class ClientLevelWrapper implements IClientLevelWrapper
 	
 	public ClientLevel getLevel() { return this.level; }
 	
+	private Boolean dimHasCeiling = null;
 	@Override
-	public boolean hasCeiling() { return this.level.dimensionType().hasCeiling(); }
+	public boolean hasCeiling() 
+	{
+		// cached since dimensionType() is a dictionary lookup that allocates objects
+		// and this call is used in a high traffic location
+		if (this.dimHasCeiling != null)
+		{
+			return this.dimHasCeiling;
+		}
 		
+		
+		this.dimHasCeiling = this.level.dimensionType().hasCeiling();
+		return this.dimHasCeiling;
+	}
+	
+	private Boolean dimHasSkyLight = null;
 	@Override
-	public boolean hasSkyLight() { return this.level.dimensionType().hasSkyLight(); }
+	public boolean hasSkyLight() 
+	{
+		// cached since dimensionType() is a dictionary lookup that allocates objects
+		// and this call is used in a high traffic location
+		if (this.dimHasSkyLight != null)
+		{
+			return this.dimHasSkyLight;
+		}
 		
+		this.dimHasSkyLight = this.level.dimensionType().hasSkyLight();
+		return this.dimHasSkyLight;
+	}
+	
+	private Integer dimMaxHeight = null;
 	@Override
-	public int getMaxHeight() { return this.level.getHeight(); }
+	public int getMaxHeight() 
+	{
+		// cached since getHeight() is a dictionary lookup that allocates objects
+		// and this call is used in a high traffic location
+		if (this.dimMaxHeight != null)
+		{
+			return this.dimMaxHeight;
+		}
 		
+		this.dimMaxHeight = this.level.getHeight();
+		return this.dimMaxHeight;
+	}
+	
+	private Integer dimMinHeight = null;
 	@Override
 	public int getMinHeight()
 	{
+		// cached since getMinY() is a dictionary lookup that allocates objects
+		// and this call is used in a high traffic location
+		if (this.dimMinHeight != null)
+		{
+			return this.dimMinHeight;
+		}
+		
+		
         #if MC_VER < MC_1_17_1
-        return 0;
+        this.dimMinHeight = 0;
 		#elif MC_VER < MC_1_21_3
-		return this.level.getMinBuildHeight();
+		this.dimMinHeight = this.level.getMinBuildHeight();
         #else
-		return this.level.getMinY();
+		this.dimMinHeight = this.level.getMinY();
         #endif
+		return this.dimMinHeight;
 	}
 	
 	@Override
@@ -318,12 +390,14 @@ public class ClientLevelWrapper implements IClientLevelWrapper
 		return this.dhLevel.getSaveStructure().getSaveFolder(this);
 	}
 	
+	//endregion
 	
 	
 	
 	//===================//
 	// generic rendering //
 	//===================//
+	//region
 	
 	@Override
 	public void setDhLevel(IDhLevel dhLevel) { this.dhLevel = dhLevel; }
@@ -410,11 +484,14 @@ public class ClientLevelWrapper implements IClientLevelWrapper
 		#endif
 	}
 	
+	//endregion
+	
 	
 	
 	//================//
 	// base overrides //
 	//================//
+	//region
 	
 	@Override
 	public String toString()
@@ -427,4 +504,8 @@ public class ClientLevelWrapper implements IClientLevelWrapper
 		return "Wrapped{" + this.level.toString() + "@" + this.getDhIdentifier() + "}";
 	}
 	
+	//endregion
+	
+	
+	
 }

common/src/main/java/com/seibel/distanthorizons/common/wrappers/worldGeneration/BatchGenerationEnvironment.java

@@ -29,6 +29,8 @@ import com.seibel.distanthorizons.common.wrappers.worldGeneration.chunkFileHandl
 import com.seibel.distanthorizons.common.wrappers.worldGeneration.mimicObject.*;
 import com.seibel.distanthorizons.common.wrappers.worldGeneration.params.GlobalWorldGenParams;
 import com.seibel.distanthorizons.core.api.internal.SharedApi;
+import com.seibel.distanthorizons.core.api.internal.chunkUpdating.ChunkUpdateQueueManager;
+import com.seibel.distanthorizons.core.api.internal.chunkUpdating.WorldChunkUpdateManager;
 import com.seibel.distanthorizons.core.generation.DhLightingEngine;
 import com.seibel.distanthorizons.core.level.IDhServerLevel;
 import com.seibel.distanthorizons.core.config.Config;
@@ -590,7 +592,11 @@ public final class BatchGenerationEnvironment implements IBatchGeneratorEnvironm
 				
 				// usually ignoring the chunk's position is unnecessary,
 				// but this improves performance if a chunk update event does sneak through 
-				SharedApi.CHUNK_UPDATE_QUEUE_MANAGER.addPosToIgnore(chunkWrapper.getChunkPos());
+				ChunkUpdateQueueManager updateManager = WorldChunkUpdateManager.INSTANCE.getByLevelWrapper(this.dhServerLevel.getServerLevelWrapper());
+				if (updateManager != null)
+				{
+					updateManager.addPosToIgnore(chunkWrapper.getChunkPos());
+				}
 				
 			});
 			
@@ -716,7 +722,19 @@ public final class BatchGenerationEnvironment implements IBatchGeneratorEnvironm
 				this.chunkSaveIgnoreTimer.schedule(new TimerTask()
 				{
 					@Override
-					public void run() { SharedApi.CHUNK_UPDATE_QUEUE_MANAGER.removePosToIgnore(chunkWrapper.getChunkPos()); }
+					public void run() 
+					{
+						ChunkUpdateQueueManager updateManager = WorldChunkUpdateManager.INSTANCE.getByLevelWrapper(BatchGenerationEnvironment.this.dhServerLevel.getServerLevelWrapper());
+						if (updateManager != null)
+						{
+							updateManager.addPosToIgnore(chunkWrapper.getChunkPos());
+						}
+						else
+						{
+							// shouldn't happen, but just in case
+							LOGGER.warn("Unable to find chunk update manager for server level ["+BatchGenerationEnvironment.this.dhServerLevel+"], chunk updates may fail.");
+						}
+					}
 				}, MS_TO_IGNORE_CHUNK_AFTER_COMPLETION);
 			}
 		}

common/src/main/java/com/seibel/distanthorizons/common/wrappers/worldGeneration/InternalServerGenerator.java

@@ -5,10 +5,13 @@ import com.seibel.distanthorizons.common.wrappers.chunk.ChunkWrapper;
 import com.seibel.distanthorizons.common.wrappers.worldGeneration.params.GlobalWorldGenParams;
 import com.seibel.distanthorizons.core.api.internal.ClientApi;
 import com.seibel.distanthorizons.core.api.internal.SharedApi;
+import com.seibel.distanthorizons.core.api.internal.chunkUpdating.ChunkUpdateQueueManager;
+import com.seibel.distanthorizons.core.api.internal.chunkUpdating.WorldChunkUpdateManager;
 import com.seibel.distanthorizons.core.config.Config;
 import com.seibel.distanthorizons.core.dependencyInjection.ModAccessorInjector;
 import com.seibel.distanthorizons.core.enums.MinecraftTextFormat;
 import com.seibel.distanthorizons.core.generation.DhLightingEngine;
+import com.seibel.distanthorizons.core.level.DhServerLevel;
 import com.seibel.distanthorizons.core.level.IDhServerLevel;
 import com.seibel.distanthorizons.core.logging.DhLogger;
 import com.seibel.distanthorizons.core.logging.DhLoggerBuilder;
@@ -190,7 +193,7 @@ public class InternalServerGenerator
 			while (chunkPosIterator.hasNext())
 			{
 				ChunkPos chunkPos = chunkPosIterator.next();
-				this.releaseChunkFromServer(this.params.mcServerLevel, chunkPos);
+				this.releaseChunkFromServer(this.params.mcServerLevel, this.params.dhServerLevel, chunkPos);
 			}
 		}
 	}
@@ -234,7 +237,11 @@ public class InternalServerGenerator
 			ServerLevel level = this.params.mcServerLevel;
 			
 			// ignore chunk update events for this position
-			SharedApi.CHUNK_UPDATE_QUEUE_MANAGER.addPosToIgnore(new DhChunkPos(chunkPos.x, chunkPos.z));
+			ChunkUpdateQueueManager updateManager = WorldChunkUpdateManager.INSTANCE.getByLevelWrapper(this.params.dhServerLevel.getServerLevelWrapper());
+			if (updateManager != null)
+			{
+				updateManager.addPosToIgnore(new DhChunkPos(chunkPos.x, chunkPos.z));
+			}
 			
 			#if MC_VER < MC_1_21_5
 			int chunkLevel = 33; // 33 is equivalent to FULL Chunk
@@ -270,7 +277,7 @@ public class InternalServerGenerator
 	 * mitigates out of memory issues in the vanilla chunk system. <br>
 	 * See: https://github.com/pop4959/Chunky/pull/383
 	 */
-	private void releaseChunkFromServer(ServerLevel level, ChunkPos chunkPos)
+	private void releaseChunkFromServer(ServerLevel level, IDhServerLevel dhLevel, ChunkPos chunkPos)
 	{
 		level.getChunkSource().chunkMap.mainThreadExecutor.execute(() ->
 		{
@@ -295,7 +302,19 @@ public class InternalServerGenerator
 				this.chunkSaveIgnoreTimer.schedule(new TimerTask()
 				{
 					@Override
-					public void run() { SharedApi.CHUNK_UPDATE_QUEUE_MANAGER.removePosToIgnore(new DhChunkPos(chunkPos.x, chunkPos.z)); }
+					public void run() 
+					{
+						ChunkUpdateQueueManager updateManager = WorldChunkUpdateManager.INSTANCE.getByLevelWrapper(dhLevel.getServerLevelWrapper());
+						if (updateManager != null)
+						{
+							updateManager.addPosToIgnore(new DhChunkPos(chunkPos.x, chunkPos.z));
+						}
+						else
+						{
+							// shouldn't happen, but just in case
+							LOGGER.warn("Unable to find chunk update manager for server level ["+dhLevel+"], chunk updates may fail.");
+						}
+					}
 				}, MS_TO_IGNORE_CHUNK_AFTER_COMPLETION);
 				
 			}

common/src/main/java/com/seibel/distanthorizons/common/wrappers/worldGeneration/mimicObject/DhLitWorldGenRegion.java

@@ -216,13 +216,6 @@ public class DhLitWorldGenRegion extends WorldGenRegion
 	public LevelTickAccess<Fluid> getFluidTicks() { return BlackholeTickAccess.emptyLevelList(); }
 	#endif
 	
-	// TODO Check this
-//	@Override
-//	public List<? extends StructureStart<?>> startsForFeature(SectionPos sectionPos,
-//			StructureFeature<?> structureFeature) {
-//		return structFeat.startsForFeature(sectionPos, structureFeature);
-//	}
-	
 	// Skip updating the related tile entities
 	@Override
 	public boolean setBlock(BlockPos blockPos, BlockState blockState, int i, int j)
@@ -395,8 +388,10 @@ public class DhLitWorldGenRegion extends WorldGenRegion
 		if (chunkStatus != ChunkStatus.EMPTY 
 			&& chunkStatus != debugTriggeredForStatus)
 		{
-			LOGGER.info("WorldGen requiring [" + chunkStatus + "]"
+			// logger disabled since this doesn't seem to significantly harm anything
-					+ " is outside the expected range. Returning EMPTY chunk.");
+			// and it causes more confusion to end users when they see it in the log
+			//LOGGER.info("WorldGen requiring [" + chunkStatus + "]"
+			//		+ " is outside the expected range. Returning EMPTY chunk.");
 			debugTriggeredForStatus = chunkStatus;
 		}
 		

common/src/main/java/com/seibel/distanthorizons/common/wrappers/worldGeneration/step/StepBiomes.java

@@ -67,8 +67,8 @@ public final class StepBiomes extends AbstractWorldGenStep
 			ThreadWorldGenParams tParams, DhLitWorldGenRegion worldGenRegion, 
 			ArrayGridList<ChunkWrapper> chunkWrappers)
 	{
-		ArrayList<ChunkWrapper> chunksToDo = this.getChunkWrappersToGenerate(chunkWrappers);
+		ArrayList<ChunkWrapper> chunksToGen = this.getChunkWrappersToGenerate(chunkWrappers);
-		for (ChunkWrapper chunkWrapper : chunksToDo)
+		for (ChunkWrapper chunkWrapper : chunksToGen)
 		{
 			ChunkAccess chunk = chunkWrapper.getChunk();
 			

common/src/main/java/com/seibel/distanthorizons/common/wrappers/worldGeneration/step/StepFeatures.java

@@ -37,7 +37,10 @@ import net.minecraft.world.level.chunk.status.ChunkStatus;
 #endif
 
 import java.util.ArrayList;
+import java.util.Collections;
 import java.util.ConcurrentModificationException;
+import java.util.Set;
+import java.util.concurrent.ConcurrentHashMap;
 
 
 public final class StepFeatures extends AbstractWorldGenStep
@@ -48,6 +51,8 @@ public final class StepFeatures extends AbstractWorldGenStep
 	
 	private final BatchGenerationEnvironment environment;
 	
+	public static final Set<String> LOGGED_ERRORS = Collections.newSetFromMap(new ConcurrentHashMap<String, Boolean>());
+	
 	
 	
 	//=============//
@@ -70,8 +75,8 @@ public final class StepFeatures extends AbstractWorldGenStep
 			ThreadWorldGenParams tParams, DhLitWorldGenRegion worldGenRegion,
 			ArrayGridList<ChunkWrapper> chunkWrappers)
 	{
-		ArrayList<ChunkWrapper> chunksToDo = this.getChunkWrappersToGenerate(chunkWrappers);
+		ArrayList<ChunkWrapper> chunksToGen = this.getChunkWrappersToGenerate(chunkWrappers);
-		for (ChunkWrapper chunkWrapper : chunksToDo)
+		for (ChunkWrapper chunkWrapper : chunksToGen)
 		{
 			ChunkAccess chunk = chunkWrapper.getChunk();
 			
@@ -94,15 +99,21 @@ public final class StepFeatures extends AbstractWorldGenStep
 				
 				Heightmap.primeHeightmaps(chunk, STATUS.heightmapsAfter());
 			}
-			catch (ConcurrentModificationException e) // ReportedException
+			catch (ConcurrentModificationException e)
 			{
-				// TODO
+				String message = "Concurrency issue when generating features for chunk at pos ["+chunkWrapper.getChunkPos()+"], error: ["+e.getMessage()+"], this message will only be logged once. This issue cannot be resolved from DH's end.";
+				if (LOGGED_ERRORS.add(message))
+				{
+					LOGGER.warn(message, e);
+				}
 			}
 			catch (Exception e)
 			{
-				LOGGER.warn("Unexpected issue when generating features for chunk at pos ["+chunkWrapper.getChunkPos()+"], error: ["+e.getMessage()+"].", e);
+				String message = "Unexpected issue when generating features for chunk at pos ["+chunkWrapper.getChunkPos()+"], error: ["+e.getMessage()+"].";
-				// FIXME: Features concurrent modification issue. Something about cocobeans might just
+				if (LOGGED_ERRORS.add(message))
-				//  error out. For now just retry.
+				{
+					LOGGER.warn(message, e);
+				}
 			}
 		}
 	}

common/src/main/java/com/seibel/distanthorizons/common/wrappers/worldGeneration/step/StepNoise.java

@@ -67,8 +67,8 @@ public final class StepNoise extends AbstractWorldGenStep
 			ThreadWorldGenParams tParams, DhLitWorldGenRegion worldGenRegion,
 			ArrayGridList<ChunkWrapper> chunkWrappers)
 	{
-		ArrayList<ChunkWrapper> chunksToDo = this.getChunkWrappersToGenerate(chunkWrappers);
+		ArrayList<ChunkWrapper> chunksToGen = this.getChunkWrappersToGenerate(chunkWrappers);
-		for (ChunkWrapper chunkWrapper : chunksToDo)
+		for (ChunkWrapper chunkWrapper : chunksToGen)
 		{
 			ChunkAccess chunk = chunkWrapper.getChunk();
 			

common/src/main/java/com/seibel/distanthorizons/common/wrappers/worldGeneration/step/StepStructureReference.java

@@ -64,8 +64,8 @@ public final class StepStructureReference extends AbstractWorldGenStep
 			ThreadWorldGenParams tParams, DhLitWorldGenRegion worldGenRegion,
 			ArrayGridList<ChunkWrapper> chunkWrappers)
 	{
-		ArrayList<ChunkWrapper> chunksToDo = this.getChunkWrappersToGenerate(chunkWrappers);
+		ArrayList<ChunkWrapper> chunksToGen = this.getChunkWrappersToGenerate(chunkWrappers);
-		for (ChunkWrapper chunkWrapper : chunksToDo)
+		for (ChunkWrapper chunkWrapper : chunksToGen)
 		{
 			ChunkAccess chunk = chunkWrapper.getChunk();
 			this.environment.globalParams.generator.createReferences(worldGenRegion, tParams.structFeatManager.forWorldGenRegion(worldGenRegion), chunk);

common/src/main/java/com/seibel/distanthorizons/common/wrappers/worldGeneration/step/StepStructureStart.java

@@ -69,10 +69,8 @@ public final class StepStructureStart extends AbstractWorldGenStep
 			ThreadWorldGenParams tParams, DhLitWorldGenRegion worldGenRegion,
 			ArrayGridList<ChunkWrapper> chunkWrappers)
 	{
-		ArrayList<ChunkWrapper> chunksToDo = this.getChunkWrappersToGenerate(chunkWrappers);
+		ArrayList<ChunkWrapper> chunksToGen = this.getChunkWrappersToGenerate(chunkWrappers);
 		
-		// TODO should be put in wrapped environment so we can skip some other world gen steps
-		//  SURFACE wouldn't need structure generation either
 		#if MC_VER < MC_1_19_2
 		if (!this.environment.globalParams.worldGenSettings.generateFeatures())
 		#elif MC_VER < MC_1_19_4
@@ -86,7 +84,7 @@ public final class StepStructureStart extends AbstractWorldGenStep
 		
 		
 		
-		for (ChunkWrapper chunkWrapper : chunksToDo)
+		for (ChunkWrapper chunkWrapper : chunksToGen)
 		{
 			ChunkAccess chunk = chunkWrapper.getChunk();
 			
@@ -111,6 +109,8 @@ public final class StepStructureStart extends AbstractWorldGenStep
 					this.environment.globalParams.mcServerLevel.dimension());
 			#endif
 			
+			
+			
 			#if MC_VER >= MC_1_18_2
 			try
 			{
@@ -120,7 +120,6 @@ public final class StepStructureStart extends AbstractWorldGenStep
 			{
 				// There's a rare issue with StructStart where it throws ArrayIndexOutOfBounds
 				// This means the structFeat is corrupted (For some reason) and I need to reset it.
-				// TODO: Figure out in the future why this happens even though I am using new structFeat - OLD
 				
 				// reset the structureStart
 				tParams.recreateStructureCheck();