James Seibel
885 lines
27 KiB
Java
885 lines
27 KiB
Java
/*
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* This file is part of the LOD Mod, licensed under the GNU GPL v3 License.
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*
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* Copyright (C) 2020 James Seibel
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, version 3.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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package com.seibel.lod.render;
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import java.nio.ByteBuffer;
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import java.nio.ByteOrder;
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import java.nio.FloatBuffer;
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import java.util.HashSet;
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import org.lwjgl.opengl.GL;
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import org.lwjgl.opengl.GL11;
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import org.lwjgl.opengl.NVFogDistance;
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import com.mojang.blaze3d.matrix.MatrixStack;
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import com.mojang.blaze3d.platform.GlStateManager;
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import com.mojang.blaze3d.systems.RenderSystem;
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import com.seibel.lod.builders.LodNodeBufferBuilder;
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import com.seibel.lod.enums.FogDistance;
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import com.seibel.lod.enums.FogDrawOverride;
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import com.seibel.lod.enums.FogQuality;
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import com.seibel.lod.handlers.LodConfig;
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import com.seibel.lod.handlers.ReflectionHandler;
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import com.seibel.lod.objects.LodQuadTreeDimension;
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import com.seibel.lod.objects.LodQuadTreeNode;
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import com.seibel.lod.objects.NearFarBuffer;
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import com.seibel.lod.objects.NearFarFogSettings;
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import com.seibel.lod.proxy.ClientProxy;
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import com.seibel.lod.util.LodUtil;
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import net.minecraft.client.Minecraft;
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import net.minecraft.client.entity.player.ClientPlayerEntity;
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import net.minecraft.client.renderer.ActiveRenderInfo;
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import net.minecraft.client.renderer.BufferBuilder;
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import net.minecraft.client.renderer.FogRenderer;
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import net.minecraft.client.renderer.GameRenderer;
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import net.minecraft.client.renderer.WorldRenderer;
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import net.minecraft.client.renderer.vertex.DefaultVertexFormats;
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import net.minecraft.client.renderer.vertex.VertexBuffer;
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import net.minecraft.client.renderer.vertex.VertexFormat;
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import net.minecraft.potion.Effects;
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import net.minecraft.profiler.IProfiler;
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import net.minecraft.util.math.BlockPos;
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import net.minecraft.util.math.ChunkPos;
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import net.minecraft.util.math.MathHelper;
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import net.minecraft.util.math.vector.Matrix4f;
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import net.minecraft.util.math.vector.Vector3d;
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import net.minecraft.util.math.vector.Vector3f;
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/**
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* This is where all the magic happens. <br>
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* This is where LODs are draw to the world.
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*
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* @author James Seibel
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* @version 07-4-2021
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*/
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public class LodNodeRenderer
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{
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/** this is the light used when rendering the LODs,
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* it should be something different than what is used by Minecraft */
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private static final int LOD_GL_LIGHT_NUMBER = GL11.GL_LIGHT2;
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/**
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* 64 MB by default is the maximum amount of memory that
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* can be directly allocated. <br><br>
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*
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* I know there are commands to change that amount
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* (specifically "-XX:MaxDirectMemorySize"), but
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* I have no idea how to access that amount. <br>
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* So I guess this will be the hard limit for now. <br><br>
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*
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* https://stackoverflow.com/questions/50499238/bytebuffer-allocatedirect-and-xmx
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*/
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public static final int MAX_ALOCATEABLE_DIRECT_MEMORY = 64 * 1024 * 1024;
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/** Does this computer's GPU support fancy fog? */
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private static Boolean fancyFogAvailable = null;
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/** If true the LODs colors will be replaced with
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* a checkerboard, this can be used for debugging. */
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public boolean debugging = false;
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private Minecraft mc;
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private GameRenderer gameRender;
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private IProfiler profiler;
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private int farPlaneBlockDistance;
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private ReflectionHandler reflectionHandler;
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/** This is used to generate the buildable buffers */
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private LodNodeBufferBuilder lodNodeBufferBuilder;
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/** The buffers that are used to draw LODs using near fog */
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private volatile BufferBuilder drawableNearBuffer;
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/** The buffers that are used to draw LODs using far fog */
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private volatile BufferBuilder drawableFarBuffer;
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/** This is the VertexBuffer used to draw any LODs that use near fog */
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private volatile VertexBuffer nearVbo;
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/** This is the VertexBuffer used to draw any LODs that use far fog */
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private volatile VertexBuffer farVbo;
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public static final VertexFormat LOD_VERTEX_FORMAT = DefaultVertexFormats.POSITION_COLOR;
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/** This is used to determine if the LODs should be regenerated */
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private int previousChunkRenderDistance = 0;
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/** This is used to determine if the LODs should be regenerated */
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private int prevChunkX = 0;
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/** This is used to determine if the LODs should be regenerated */
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private int prevChunkZ = 0;
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/** This is used to determine if the LODs should be regenerated */
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private FogDistance prevFogDistance = FogDistance.NEAR_AND_FAR;
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/** if this is true the LOD buffers should be regenerated,
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* provided they aren't already being regenerated. */
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private volatile boolean regen = false;
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/** This HashSet contains every chunk that Vanilla Minecraft
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* is going to render */
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public HashSet<ChunkPos> vanillaRenderedChunks = new HashSet<>();
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public LodNodeRenderer(LodNodeBufferBuilder newLodNodeBufferBuilder)
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{
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mc = Minecraft.getInstance();
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gameRender = mc.gameRenderer;
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reflectionHandler = new ReflectionHandler();
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lodNodeBufferBuilder = newLodNodeBufferBuilder;
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}
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/**
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* Besides drawing the LODs this method also starts
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* the async process of generating the Buffers that hold those LODs.
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*
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* @param newDim The dimension to draw, if null doesn't replace the current dimension.
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* @param partialTicks how far into the current tick this method was called.
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*/
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@SuppressWarnings("deprecation")
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public void drawLODs(LodQuadTreeDimension lodDim, float partialTicks, IProfiler newProfiler)
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{
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if (lodDim == null)
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{
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// if there aren't any loaded LodChunks
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// don't try drawing anything
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return;
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}
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//===============//
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// initial setup //
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//===============//
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profiler = newProfiler;
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profiler.push("LOD setup");
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// only check the GPU capability's once
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if (fancyFogAvailable == null)
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{
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// see if this GPU can run fancy fog
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fancyFogAvailable = GL.getCapabilities().GL_NV_fog_distance;
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if (!fancyFogAvailable)
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{
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ClientProxy.LOGGER.info("This GPU does not support GL_NV_fog_distance. This means that fancy fog options will not be available.");
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}
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}
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ClientPlayerEntity player = mc.player;
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// should LODs be regenerated?
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if ((int)player.getX() / LodUtil.CHUNK_WIDTH != prevChunkX ||
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(int)player.getZ() / LodUtil.CHUNK_WIDTH != prevChunkZ ||
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previousChunkRenderDistance != mc.options.renderDistance ||
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prevFogDistance != LodConfig.CLIENT.fogDistance.get())
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{
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// yes
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regen = true;
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prevChunkX = (int)player.getX() / LodUtil.CHUNK_WIDTH;
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prevChunkZ = (int)player.getZ() / LodUtil.CHUNK_WIDTH;
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prevFogDistance = LodConfig.CLIENT.fogDistance.get();
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}
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else
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{
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// nope, the player hasn't moved, the
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// render distance hasn't changed, and
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// the dimension is the same
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}
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// did the user change the debug setting?
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if (LodConfig.CLIENT.debugMode.get() != debugging)
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{
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debugging = LodConfig.CLIENT.debugMode.get();
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regen = true;
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}
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// determine how far the game's render distance is currently set
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farPlaneBlockDistance = mc.options.renderDistance * LodUtil.CHUNK_WIDTH;
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// set how how far the LODs will go
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int numbChunksWide = mc.options.renderDistance * 2 * LodConfig.CLIENT.lodChunkRadiusMultiplier.get();
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// determine which LODs should not be rendered close to the player
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HashSet<ChunkPos> chunkPosToSkip = getNearbyLodChunkPosToSkip(lodDim, player.blockPosition());
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// see if the chunks Minecraft is going to render are the
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// same as last time
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if (!vanillaRenderedChunks.containsAll(chunkPosToSkip))
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{
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regen = true;
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vanillaRenderedChunks = chunkPosToSkip;
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}
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//=================//
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// create the LODs //
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//=================//
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// only regenerate the LODs if:
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// 1. we want to regenerate LODs
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// 2. we aren't already regenerating the LODs
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// 3. we aren't waiting for the build and draw buffers to swap
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// (this is to prevent thread conflicts)
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if (regen && !lodNodeBufferBuilder.generatingBuffers && !lodNodeBufferBuilder.newBuffersAvaliable())
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{
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// this will mainly happen when the view distance is changed
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if (drawableNearBuffer == null || drawableFarBuffer == null ||
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previousChunkRenderDistance != mc.options.renderDistance)
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setupBuffers(numbChunksWide);
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// generate the LODs on a separate thread to prevent stuttering or freezing
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lodNodeBufferBuilder.generateLodBuffersAsync(this, lodDim, player.blockPosition(), numbChunksWide);
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// the regen process has been started,
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// it will be done when lodBufferBuilder.newBuffersAvaliable
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// is true
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regen = false;
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}
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// replace the buffers used to draw and build,
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// this is only done when the createLodBufferGenerationThread
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// has finished executing on a parallel thread.
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if (lodNodeBufferBuilder.newBuffersAvaliable())
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{
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swapBuffers();
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}
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//===========================//
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// GL settings for rendering //
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//===========================//
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// set the required open GL settings
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GL11.glPolygonMode(GL11.GL_FRONT_AND_BACK, GL11.GL_FILL);
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GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);
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GL11.glDisable(GL11.GL_TEXTURE_2D);
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GL11.glEnable(GL11.GL_CULL_FACE);
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GL11.glEnable(GL11.GL_COLOR_MATERIAL);
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GL11.glEnable(GL11.GL_DEPTH_TEST);
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// disable the lights Minecraft uses
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GL11.glDisable(GL11.GL_LIGHT0);
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GL11.glDisable(GL11.GL_LIGHT1);
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// get the default projection matrix so we can
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// reset it after drawing the LODs
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float[] defaultProjMatrix = new float[16];
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GL11.glGetFloatv(GL11.GL_PROJECTION_MATRIX, defaultProjMatrix);
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Matrix4f modelViewMatrix = generateModelViewMatrix(partialTicks);
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setupProjectionMatrix(partialTicks);
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setupLighting(lodDim, partialTicks);
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NearFarFogSettings fogSettings = determineFogSettings();
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// determine the current fog settings so they can be
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// reset after drawing the LODs
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float defaultFogStartDist = GL11.glGetFloat(GL11.GL_FOG_START);
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float defaultFogEndDist = GL11.glGetFloat(GL11.GL_FOG_END);
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int defaultFogMode = GL11.glGetInteger(GL11.GL_FOG_MODE);
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int defaultFogDistance = GL11.glGetInteger(NVFogDistance.GL_FOG_DISTANCE_MODE_NV);
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//===========//
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// rendering //
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//===========//
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profiler.popPush("LOD draw");
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setupFog(fogSettings.near.distance, fogSettings.near.quality);
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sendLodsToGpuAndDraw(nearVbo, modelViewMatrix);
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setupFog(fogSettings.far.distance, fogSettings.far.quality);
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sendLodsToGpuAndDraw(farVbo, modelViewMatrix);
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//=========//
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// cleanup //
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//=========//
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profiler.popPush("LOD cleanup");
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GL11.glPolygonMode(GL11.GL_FRONT_AND_BACK, GL11.GL_FILL);
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GL11.glEnable(GL11.GL_TEXTURE_2D);
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GL11.glDisable(LOD_GL_LIGHT_NUMBER);
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// re-enable the lights Minecraft uses
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GL11.glEnable(GL11.GL_LIGHT0);
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GL11.glEnable(GL11.GL_LIGHT1);
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RenderSystem.disableLighting();
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// this can't be called until after the buffers are built
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// because otherwise the buffers may be set to the wrong size
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previousChunkRenderDistance = mc.options.renderDistance;
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// reset the fog settings so the normal chunks
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// will be drawn correctly
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cleanupFog(fogSettings, defaultFogStartDist, defaultFogEndDist, defaultFogMode, defaultFogDistance);
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// reset the projection matrix so anything drawn after
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// the LODs will use the correct projection matrix
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Matrix4f mvm = new Matrix4f(defaultProjMatrix);
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mvm.transpose();
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gameRender.resetProjectionMatrix(mvm);
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// clear the depth buffer so anything drawn is drawn
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// over the LODs
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GL11.glClear(GL11.GL_DEPTH_BUFFER_BIT);
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// end of internal LOD profiling
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profiler.pop();
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}
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/**
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* This is where the actual drawing happens.
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*
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* @param buffers the buffers sent to the GPU to draw
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*/
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private void sendLodsToGpuAndDraw(VertexBuffer vbo, Matrix4f modelViewMatrix)
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{
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if (vbo == null)
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return;
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vbo.bind();
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// 0L is the starting pointer
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LOD_VERTEX_FORMAT.setupBufferState(0L);
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vbo.draw(modelViewMatrix, GL11.GL_QUADS);
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VertexBuffer.unbind();
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LOD_VERTEX_FORMAT.clearBufferState();
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}
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//=================//
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// Setup Functions //
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//=================//
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@SuppressWarnings("deprecation")
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private void setupFog(FogDistance fogDistance, FogQuality fogQuality)
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{
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if(fogQuality == FogQuality.OFF)
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{
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FogRenderer.setupNoFog();
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RenderSystem.disableFog();
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return;
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}
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if(fogDistance == FogDistance.NEAR_AND_FAR)
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{
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throw new IllegalArgumentException("setupFog doesn't accept the NEAR_AND_FAR fog distance.");
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}
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// determine the fog distance mode to use
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int glFogDistanceMode;
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if (fogQuality == FogQuality.FANCY)
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{
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// fancy fog (fragment distance based fog)
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glFogDistanceMode = NVFogDistance.GL_EYE_RADIAL_NV;
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}
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else
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{
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// fast fog (frustum distance based fog)
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glFogDistanceMode = NVFogDistance.GL_EYE_PLANE_ABSOLUTE_NV;
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}
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// the multipliers are percentages
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// of the regular view distance.
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if(fogDistance == FogDistance.NEAR)
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{
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// the reason that I wrote fogEnd then fogStart backwards
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// is because we are using fog backwards to how
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// it is normally used, with it hiding near objects
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// instead of far objects.
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if (fogQuality == FogQuality.FANCY)
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{
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RenderSystem.fogEnd(farPlaneBlockDistance * 1.75f);
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RenderSystem.fogStart(farPlaneBlockDistance * 1.95f);
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}
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else if(fogQuality == FogQuality.FAST)
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{
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// for the far fog of the normal chunks
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// to start right where the LODs' end use:
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// end = 0.8f, start = 1.5f
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RenderSystem.fogEnd(farPlaneBlockDistance * 1.5f);
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RenderSystem.fogStart(farPlaneBlockDistance * 2.0f);
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}
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}
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else if(fogDistance == FogDistance.FAR)
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{
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if (fogQuality == FogQuality.FANCY)
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{
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RenderSystem.fogStart(farPlaneBlockDistance * 0.85f * LodConfig.CLIENT.lodChunkRadiusMultiplier.get());
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RenderSystem.fogEnd(farPlaneBlockDistance * 1.0f * LodConfig.CLIENT.lodChunkRadiusMultiplier.get());
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}
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else if(fogQuality == FogQuality.FAST)
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{
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RenderSystem.fogStart(farPlaneBlockDistance * 0.5f * LodConfig.CLIENT.lodChunkRadiusMultiplier.get());
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RenderSystem.fogEnd(farPlaneBlockDistance * 0.75f * LodConfig.CLIENT.lodChunkRadiusMultiplier.get());
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}
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}
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GL11.glEnable(GL11.GL_FOG);
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RenderSystem.enableFog();
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RenderSystem.setupNvFogDistance();
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RenderSystem.fogMode(GlStateManager.FogMode.LINEAR);
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GL11.glFogi(NVFogDistance.GL_FOG_DISTANCE_MODE_NV, glFogDistanceMode);
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}
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/**
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* Revert any changes that were made to the fog.
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*/
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@SuppressWarnings("deprecation")
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private void cleanupFog(NearFarFogSettings fogSettings,
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float defaultFogStartDist, float defaultFogEndDist,
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int defaultFogMode, int defaultFogDistance)
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{
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RenderSystem.fogStart(defaultFogStartDist);
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RenderSystem.fogEnd(defaultFogEndDist);
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RenderSystem.fogMode(defaultFogMode);
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GL11.glFogi(NVFogDistance.GL_FOG_DISTANCE_MODE_NV, defaultFogDistance);
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// disable fog if Minecraft wasn't rendering fog
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// but we were
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if(!fogSettings.vanillaIsRenderingFog &&
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(fogSettings.near.quality != FogQuality.OFF ||
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fogSettings.far.quality != FogQuality.OFF))
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{
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GL11.glDisable(GL11.GL_FOG);
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}
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}
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/**
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* Create the model view matrix to move the LODs
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* from object space into world space.
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*/
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private Matrix4f generateModelViewMatrix(float partialTicks)
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{
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// get all relevant camera info
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ActiveRenderInfo renderInfo = mc.gameRenderer.getMainCamera();
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Vector3d projectedView = renderInfo.getPosition();
|
|
|
|
|
|
// generate the model view matrix
|
|
MatrixStack matrixStack = new MatrixStack();
|
|
matrixStack.pushPose();
|
|
// translate and rotate to the current camera location
|
|
matrixStack.mulPose(Vector3f.XP.rotationDegrees(renderInfo.getXRot()));
|
|
matrixStack.mulPose(Vector3f.YP.rotationDegrees(renderInfo.getYRot() + 180));
|
|
matrixStack.translate(-projectedView.x, -projectedView.y, -projectedView.z);
|
|
|
|
return matrixStack.last().pose();
|
|
}
|
|
|
|
|
|
/**
|
|
* create a new projection matrix and send it over to the GPU
|
|
* <br><br>
|
|
* A lot of this code is copied from renderLevel (line 567)
|
|
* in the GameRender class. The code copied is anything with
|
|
* a matrixStack and is responsible for making sure the LOD
|
|
* objects distort correctly relative to the rest of the world.
|
|
* Distortions are caused by: standing in a nether portal,
|
|
* nausea potion effect, walking bobbing.
|
|
*
|
|
* @param partialTicks how many ticks into the frame we are
|
|
*/
|
|
private void setupProjectionMatrix(float partialTicks)
|
|
{
|
|
// Note: if the LOD objects don't distort correctly
|
|
// compared to regular minecraft terrain, make sure
|
|
// all the transformations in renderWorld are here too
|
|
|
|
MatrixStack matrixStack = new MatrixStack();
|
|
matrixStack.pushPose();
|
|
|
|
gameRender.bobHurt(matrixStack, partialTicks);
|
|
if (this.mc.options.bobView) {
|
|
gameRender.bobView(matrixStack, partialTicks);
|
|
}
|
|
|
|
// potion and nausea effects
|
|
float f = MathHelper.lerp(partialTicks, this.mc.player.oPortalTime, this.mc.player.portalTime) * this.mc.options.screenEffectScale * this.mc.options.screenEffectScale;
|
|
if (f > 0.0F) {
|
|
int i = this.mc.player.hasEffect(Effects.CONFUSION) ? 7 : 20;
|
|
float f1 = 5.0F / (f * f + 5.0F) - f * 0.04F;
|
|
f1 = f1 * f1;
|
|
Vector3f vector3f = new Vector3f(0.0F, MathHelper.SQRT_OF_TWO / 2.0F, MathHelper.SQRT_OF_TWO / 2.0F);
|
|
matrixStack.mulPose(vector3f.rotationDegrees((gameRender.tick + partialTicks) * i));
|
|
matrixStack.scale(1.0F / f1, 1.0F, 1.0F);
|
|
float f2 = -(gameRender.tick + partialTicks) * i;
|
|
matrixStack.mulPose(vector3f.rotationDegrees(f2));
|
|
}
|
|
|
|
|
|
|
|
// this projection matrix allows us to see past the normal
|
|
// world render distance
|
|
Matrix4f projectionMatrix =
|
|
Matrix4f.perspective(
|
|
getFov(partialTicks, true),
|
|
(float)this.mc.getWindow().getScreenWidth() / (float)this.mc.getWindow().getScreenHeight(),
|
|
// it is possible to see the near clip plane, but
|
|
// you have to be flying quickly in spectator mode through ungenerated
|
|
// terrain, so I don't think it is much of an issue.
|
|
LodConfig.CLIENT.lodChunkRadiusMultiplier.get(),
|
|
this.farPlaneBlockDistance * LodConfig.CLIENT.lodChunkRadiusMultiplier.get() * 2);
|
|
|
|
// add the screen space distortions
|
|
projectionMatrix.multiply(matrixStack.last().pose());
|
|
gameRender.resetProjectionMatrix(projectionMatrix);
|
|
return;
|
|
}
|
|
|
|
|
|
/**
|
|
* setup the lighting to be used for the LODs
|
|
*/
|
|
@SuppressWarnings("deprecation")
|
|
private void setupLighting(LodQuadTreeDimension lodDimension, float partialTicks)
|
|
{
|
|
float sunBrightness = lodDimension.dimension.hasSkyLight() ? mc.level.getSkyDarken(partialTicks) : 0.2f;
|
|
float gammaMultiplyer = (float)mc.options.gamma - 0.5f;
|
|
float lightStrength = ((sunBrightness / 2f) - 0.2f) + (gammaMultiplyer * 0.3f);
|
|
|
|
float lightAmbient[] = {lightStrength, lightStrength, lightStrength, 1.0f};
|
|
|
|
// can be used for debugging
|
|
// if (partialTicks < 0.005)
|
|
// ClientProxy.LOGGER.debug(lightStrength);
|
|
|
|
ByteBuffer temp = ByteBuffer.allocateDirect(16);
|
|
temp.order(ByteOrder.nativeOrder());
|
|
GL11.glLightfv(LOD_GL_LIGHT_NUMBER, GL11.GL_AMBIENT, (FloatBuffer) temp.asFloatBuffer().put(lightAmbient).flip());
|
|
GL11.glEnable(LOD_GL_LIGHT_NUMBER); // Enable the above lighting
|
|
|
|
RenderSystem.enableLighting();
|
|
}
|
|
|
|
/**
|
|
* Create all buffers that will be used.
|
|
*/
|
|
private void setupBuffers(int numbChunksWide)
|
|
{
|
|
// calculate the max amount of memory needed (in bytes)
|
|
int bufferMemory = RenderUtil.getBufferMemoryForRadiusMultiplier(LodConfig.CLIENT.lodChunkRadiusMultiplier.get());
|
|
|
|
// if the required memory is greater than the
|
|
// MAX_ALOCATEABLE_DIRECT_MEMORY lower the lodChunkRadiusMultiplier
|
|
// to fit.
|
|
if (bufferMemory > MAX_ALOCATEABLE_DIRECT_MEMORY)
|
|
{
|
|
int maxRadiusMultiplier = RenderUtil.getMaxRadiusMultiplierWithAvaliableMemory(LodConfig.CLIENT.lodTemplate.get(), LodUtil.CHUNK_DETAIL_LEVEL);
|
|
|
|
ClientProxy.LOGGER.warn("The lodChunkRadiusMultiplier was set too high "
|
|
+ "and had to be lowered to fit memory constraints "
|
|
+ "from " + LodConfig.CLIENT.lodChunkRadiusMultiplier.get() + " "
|
|
+ "to " + maxRadiusMultiplier);
|
|
|
|
LodConfig.CLIENT.lodChunkRadiusMultiplier.set(
|
|
maxRadiusMultiplier);
|
|
|
|
bufferMemory = RenderUtil.getBufferMemoryForRadiusMultiplier(maxRadiusMultiplier);
|
|
}
|
|
|
|
drawableNearBuffer = new BufferBuilder(bufferMemory);
|
|
drawableFarBuffer = new BufferBuilder(bufferMemory);
|
|
|
|
lodNodeBufferBuilder.setupBuffers(bufferMemory);
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
//======================//
|
|
// Other Misc Functions //
|
|
//======================//
|
|
|
|
/**
|
|
* If this is called then the next time "drawLODs" is called
|
|
* the LODs will be regenerated; the same as if the player moved.
|
|
*/
|
|
public void regenerateLODsNextFrame()
|
|
{
|
|
regen = true;
|
|
}
|
|
|
|
|
|
/**
|
|
* Replace the current drawable buffers with the newly
|
|
* created buffers from the lodBufferBuilder.
|
|
*/
|
|
private void swapBuffers()
|
|
{
|
|
// replace the drawable buffers with
|
|
// the newly created buffers from the lodBufferBuilder
|
|
NearFarBuffer newBuffers = lodNodeBufferBuilder.swapBuffers(drawableNearBuffer, drawableFarBuffer);
|
|
drawableNearBuffer = newBuffers.nearBuffer;
|
|
drawableFarBuffer = newBuffers.farBuffer;
|
|
|
|
|
|
// bind the buffers with their respective VBOs
|
|
if (nearVbo != null)
|
|
nearVbo.close();
|
|
|
|
nearVbo = new VertexBuffer(LOD_VERTEX_FORMAT);
|
|
nearVbo.upload(drawableNearBuffer);
|
|
|
|
|
|
if (farVbo != null)
|
|
farVbo.close();
|
|
|
|
farVbo = new VertexBuffer(LOD_VERTEX_FORMAT);
|
|
farVbo.upload(drawableFarBuffer);
|
|
}
|
|
|
|
|
|
private double getFov(float partialTicks, boolean useFovSetting)
|
|
{
|
|
return mc.gameRenderer.getFov(mc.gameRenderer.getMainCamera(), partialTicks, useFovSetting);
|
|
}
|
|
|
|
|
|
/**
|
|
* Return what fog settings should be used when rendering.
|
|
*/
|
|
private NearFarFogSettings determineFogSettings()
|
|
{
|
|
NearFarFogSettings fogSettings = new NearFarFogSettings();
|
|
|
|
|
|
FogQuality quality = reflectionHandler.getFogQuality();
|
|
FogDrawOverride override = LodConfig.CLIENT.fogDrawOverride.get();
|
|
|
|
|
|
if (quality == FogQuality.OFF)
|
|
fogSettings.vanillaIsRenderingFog = false;
|
|
else
|
|
fogSettings.vanillaIsRenderingFog = true;
|
|
|
|
|
|
// use any fog overrides the user may have set
|
|
switch(override)
|
|
{
|
|
case ALWAYS_DRAW_FOG_FANCY:
|
|
quality = FogQuality.FANCY;
|
|
break;
|
|
|
|
case NEVER_DRAW_FOG:
|
|
quality = FogQuality.OFF;
|
|
break;
|
|
|
|
case ALWAYS_DRAW_FOG_FAST:
|
|
quality = FogQuality.FAST;
|
|
break;
|
|
|
|
case USE_OPTIFINE_FOG_SETTING:
|
|
// don't override anything
|
|
break;
|
|
}
|
|
|
|
|
|
// only use fancy fog if the user's GPU can deliver
|
|
if (!fancyFogAvailable && quality == FogQuality.FANCY)
|
|
{
|
|
quality = FogQuality.FAST;
|
|
}
|
|
|
|
|
|
// how different distances are drawn depends on the quality set
|
|
switch(quality)
|
|
{
|
|
case FANCY:
|
|
fogSettings.near.quality = FogQuality.FANCY;
|
|
fogSettings.far.quality = FogQuality.FANCY;
|
|
|
|
switch(LodConfig.CLIENT.fogDistance.get())
|
|
{
|
|
case NEAR_AND_FAR:
|
|
fogSettings.near.distance = FogDistance.NEAR;
|
|
fogSettings.far.distance = FogDistance.FAR;
|
|
break;
|
|
|
|
case NEAR:
|
|
fogSettings.near.distance = FogDistance.NEAR;
|
|
fogSettings.far.distance = FogDistance.NEAR;
|
|
break;
|
|
|
|
case FAR:
|
|
fogSettings.near.distance = FogDistance.FAR;
|
|
fogSettings.far.distance = FogDistance.FAR;
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case FAST:
|
|
fogSettings.near.quality = FogQuality.FAST;
|
|
fogSettings.far.quality = FogQuality.FAST;
|
|
|
|
// fast fog setting should only have one type of
|
|
// fog, since the LODs are separated into a near
|
|
// and far portion; and fast fog is rendered from the
|
|
// frustrum's perspective instead of the camera
|
|
switch(LodConfig.CLIENT.fogDistance.get())
|
|
{
|
|
case NEAR_AND_FAR:
|
|
fogSettings.near.distance = FogDistance.NEAR;
|
|
fogSettings.far.distance = FogDistance.NEAR;
|
|
break;
|
|
|
|
case NEAR:
|
|
fogSettings.near.distance = FogDistance.NEAR;
|
|
fogSettings.far.distance = FogDistance.NEAR;
|
|
break;
|
|
|
|
case FAR:
|
|
fogSettings.near.distance = FogDistance.FAR;
|
|
fogSettings.far.distance = FogDistance.FAR;
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case OFF:
|
|
|
|
fogSettings.near.quality = FogQuality.OFF;
|
|
fogSettings.far.quality = FogQuality.OFF;
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
return fogSettings;
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
* Get a HashSet of all ChunkPos within the normal render distance
|
|
* that should not be rendered.
|
|
*/
|
|
private HashSet<ChunkPos> getNearbyLodChunkPosToSkip(LodQuadTreeDimension lodDim, BlockPos playerPos)
|
|
{
|
|
int chunkRenderDist = mc.options.renderDistance;
|
|
int blockRenderDist = chunkRenderDist * 16;
|
|
ChunkPos centerChunk = new ChunkPos(playerPos);
|
|
|
|
// skip chunks that are already going to be rendered by Minecraft
|
|
HashSet<ChunkPos> posToSkip = getRenderedChunks();
|
|
|
|
|
|
// go through each chunk within the normal view distance
|
|
for(int x = centerChunk.x - chunkRenderDist; x < centerChunk.x + chunkRenderDist; x++)
|
|
{
|
|
for(int z = centerChunk.z - chunkRenderDist; z < centerChunk.z + chunkRenderDist; z++)
|
|
{
|
|
LodQuadTreeNode lod = lodDim.getLodFromCoordinates(new ChunkPos(x, z), 4);
|
|
if (lod != null)
|
|
{
|
|
short lodHighestPoint = lod.getLodDataPoint().height;
|
|
|
|
if (playerPos.getY() < lodHighestPoint)
|
|
{
|
|
// don't draw Lod's that are taller than the player
|
|
// to prevent LODs being drawn on top of the player
|
|
posToSkip.add(new ChunkPos(x, z));
|
|
}
|
|
else if (blockRenderDist < Math.abs(playerPos.getY() - lodHighestPoint))
|
|
{
|
|
// draw Lod's that are lower than the player's view range
|
|
posToSkip.remove(new ChunkPos(x, z));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return posToSkip;
|
|
}
|
|
|
|
/**
|
|
* This method returns the ChunkPos of all chunks that Minecraft
|
|
* is going to render this frame. <br><br>
|
|
*
|
|
* Note: This isn't perfect. It will return some chunks that are outside
|
|
* the clipping plane. (For example, if you are high above the ground some chunks
|
|
* will be incorrectly added, even though they are outside render range).
|
|
*/
|
|
public static HashSet<ChunkPos> getRenderedChunks()
|
|
{
|
|
HashSet<ChunkPos> loadedPos = new HashSet<>();
|
|
|
|
Minecraft mc = Minecraft.getInstance();
|
|
|
|
// Wow those are some long names!
|
|
|
|
// go through every RenderInfo to get the compiled chunks
|
|
for(WorldRenderer.LocalRenderInformationContainer worldrenderer$localrenderinformationcontainer : mc.levelRenderer.renderChunks)
|
|
{
|
|
if (!worldrenderer$localrenderinformationcontainer.chunk.getCompiledChunk().hasNoRenderableLayers())
|
|
{
|
|
// add the ChunkPos for every empty compiled chunk
|
|
BlockPos bpos = worldrenderer$localrenderinformationcontainer.chunk.getOrigin();
|
|
|
|
loadedPos.add(new ChunkPos(bpos.getX() / 16, bpos.getZ() / 16));
|
|
}
|
|
}
|
|
|
|
return loadedPos;
|
|
}
|
|
|
|
|
|
} |