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49 changes: 49 additions & 0 deletions
49
...falsepattern/falsetweaks/mixin/mixins/client/occlusion/optifine/shaders/ShadersMixin.java
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,49 @@ | ||
| /* | ||
| * This file is part of FalseTweaks. | ||
| * | ||
| * Copyright (C) 2022-2024 FalsePattern | ||
| * All Rights Reserved | ||
| * | ||
| * The above copyright notice and this permission notice shall be included | ||
| * in all copies or substantial portions of the Software. | ||
| * | ||
| * FalseTweaks 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, either version 3 of the License, or | ||
| * (at your option) any later version. | ||
| * | ||
| * FalseTweaks 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 FalseTweaks. If not, see <https://www.gnu.org/licenses/>. | ||
| */ | ||
|
|
||
| package com.falsepattern.falsetweaks.mixin.mixins.client.occlusion.optifine.shaders; | ||
|
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| import com.falsepattern.falsetweaks.modules.occlusion.shader.ShadowPassOcclusionHelper; | ||
| import org.spongepowered.asm.mixin.Final; | ||
| import org.spongepowered.asm.mixin.Mixin; | ||
| import org.spongepowered.asm.mixin.Shadow; | ||
| import org.spongepowered.asm.mixin.injection.At; | ||
| import org.spongepowered.asm.mixin.injection.Inject; | ||
| import org.spongepowered.asm.mixin.injection.callback.CallbackInfo; | ||
| import shadersmod.client.Shaders; | ||
|
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| import java.nio.FloatBuffer; | ||
|
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| @Mixin(value = Shaders.class, | ||
| remap = false) | ||
| public abstract class ShadersMixin { | ||
| @Shadow @Final static FloatBuffer shadowModelView; | ||
|
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| @Inject(method = "setCameraShadow", | ||
| at = @At("RETURN"), | ||
| require = 1) | ||
| private static void onSetCameraShadow(CallbackInfo ci) { | ||
| shadowModelView.position(0); | ||
| ShadowPassOcclusionHelper.shadowModelViewMatrix.set(shadowModelView); | ||
| } | ||
| } |
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113 changes: 113 additions & 0 deletions
113
...java/com/falsepattern/falsetweaks/modules/occlusion/shader/ShadowPassOcclusionHelper.java
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,113 @@ | ||
| /* | ||
| * This file is part of FalseTweaks. | ||
| * | ||
| * Copyright (C) 2022-2024 FalsePattern | ||
| * All Rights Reserved | ||
| * | ||
| * The above copyright notice and this permission notice shall be included | ||
| * in all copies or substantial portions of the Software. | ||
| * | ||
| * FalseTweaks 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, either version 3 of the License, or | ||
| * (at your option) any later version. | ||
| * | ||
| * FalseTweaks 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 FalseTweaks. If not, see <https://www.gnu.org/licenses/>. | ||
| */ | ||
|
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| package com.falsepattern.falsetweaks.modules.occlusion.shader; | ||
|
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| import org.joml.Matrix4f; | ||
| import org.joml.Vector3f; | ||
|
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| import net.minecraft.client.renderer.WorldRenderer; | ||
|
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| public class ShadowPassOcclusionHelper { | ||
| private static float minCamX, minCamY, minCamZ; | ||
| private static float maxCamX, maxCamY; | ||
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| private static float minX, minY, minZ; | ||
| private static float maxX, maxY, maxZ; | ||
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| private static Vector3f scratch = new Vector3f(); | ||
| public static Matrix4f shadowModelViewMatrix = new Matrix4f(); | ||
| public static void begin() { | ||
| minCamX = Float.POSITIVE_INFINITY; | ||
| minCamY = Float.POSITIVE_INFINITY; | ||
| minCamZ = Float.POSITIVE_INFINITY; | ||
| maxCamX = Float.NEGATIVE_INFINITY; | ||
| maxCamY = Float.NEGATIVE_INFINITY; | ||
| minX = Float.POSITIVE_INFINITY; | ||
| minY = Float.POSITIVE_INFINITY; | ||
| minZ = Float.POSITIVE_INFINITY; | ||
| maxX = Float.NEGATIVE_INFINITY; | ||
| maxY = Float.NEGATIVE_INFINITY; | ||
| maxZ = Float.NEGATIVE_INFINITY; | ||
| } | ||
|
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| public static void addShadowReceiver(WorldRenderer wr) { | ||
| minX = Math.min(minX, wr.posX); | ||
| minY = Math.min(minY, wr.posY); | ||
| minZ = Math.min(minZ, wr.posZ); | ||
| maxX = Math.max(maxX, wr.posX + 16); | ||
| maxY = Math.max(maxY, wr.posY + 16); | ||
| maxZ = Math.max(maxZ, wr.posZ + 16); | ||
| } | ||
|
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| public static void end() { | ||
| for (int i = 0; i < 8; i++) { | ||
| float x = (i & 1) == 0 ? minX : maxX; | ||
| float y = (i & 2) == 0 ? minY : maxY; | ||
| float z = (i & 4) == 0 ? minZ : maxZ; | ||
| shadowModelViewMatrix.transformPosition(x, y, z, scratch); | ||
| x = scratch.x; | ||
| y = scratch.y; | ||
| z = scratch.z; | ||
| minCamX = Math.min(minCamX, x); | ||
| minCamY = Math.min(minCamY, y); | ||
| minCamZ = Math.min(minCamZ, z); | ||
| maxCamX = Math.max(maxCamX, x); | ||
| maxCamY = Math.max(maxCamY, y); | ||
| } | ||
| if (Float.isNaN(minCamX)) | ||
| minCamX = Float.NEGATIVE_INFINITY; | ||
| if (Float.isNaN(minCamY)) | ||
| minCamY = Float.NEGATIVE_INFINITY; | ||
| if (Float.isNaN(minCamZ)) | ||
| minCamZ = Float.NEGATIVE_INFINITY; | ||
| if (Float.isNaN(maxCamX)) | ||
| maxCamX = Float.POSITIVE_INFINITY; | ||
| if (Float.isNaN(maxCamY)) | ||
| maxCamY = Float.POSITIVE_INFINITY; | ||
| } | ||
|
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| public static boolean isShadowVisible(WorldRenderer wr) { | ||
| float posX = wr.posX; | ||
| float posY = wr.posY; | ||
| float posZ = wr.posZ; | ||
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| float minX = Float.POSITIVE_INFINITY, minY = Float.POSITIVE_INFINITY; | ||
| float maxX = Float.NEGATIVE_INFINITY, maxY = Float.NEGATIVE_INFINITY, maxZ = Float.NEGATIVE_INFINITY; | ||
| for (int i = 0; i < 8; i++) { | ||
| float x = posX + ((i & 1) == 0 ? 0 : 16); | ||
| float y = posY + ((i & 2) == 0 ? 0 : 16); | ||
| float z = posZ + ((i & 4) == 0 ? 0 : 16); | ||
| shadowModelViewMatrix.transformPosition(x, y, z, scratch); | ||
| x = scratch.x; | ||
| y = scratch.y; | ||
| z = scratch.z; | ||
| minX = Math.min(minX, x); | ||
| minY = Math.min(minY, y); | ||
| maxX = Math.max(maxX, x); | ||
| maxY = Math.max(maxY, y); | ||
| maxZ = Math.max(maxZ, z); | ||
| } | ||
| return maxX > minCamX && minX < maxCamX && maxY > minCamY && minY < maxCamY && maxZ > minCamZ; | ||
| } | ||
| } |