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EntityCulling
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‎atdeprecated-server/minecraft-patches/features/0012-Lophine-Add-config-to-enable-Raytracing-tracker.patch‎

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@@ -4,7 +4,7 @@ Date: Thu, 24 Jul 2025 23:04:37 +0700
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Subject: [PATCH] Lophine: Add config to enable Raytracing tracker
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Co-authored by: MrHua269 <[email protected]>
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As part of: Purpur (https://github.com/LuminolMC/Lophine/blob/904abaa56499a869259d3e6b3e586c1d33e34d28/lophine-server/minecraft-patches/features/0006-Add-config-to-enable-Raytracing-tracker.patch)
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As part of: Lophine (https://github.com/LuminolMC/Lophine/blob/904abaa56499a869259d3e6b3e586c1d33e34d28/lophine-server/minecraft-patches/features/0006-Add-config-to-enable-Raytracing-tracker.patch)
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Licensed under: MIT (https://github.com/LuminolMC/Lophine/blob/904abaa56499a869259d3e6b3e586c1d33e34d28/LICENSE.md)
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diff --git a/net/minecraft/server/level/ChunkMap.java b/net/minecraft/server/level/ChunkMap.java

‎atdeprecated-server/src/main/java/dev/tr7zw/entityculling/CullTask.java‎

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package dev.tr7zw.entityculling;
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import ca.spottedleaf.moonrise.common.util.TickThread;
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import com.logisticscraft.occlusionculling.OcclusionCullingInstance;
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import com.logisticscraft.occlusionculling.util.Vec3d;
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import dev.tr7zw.entityculling.versionless.access.Cullable;
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import fun.mntale.atdeprecated.config.AtCoreConfig;
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import net.minecraft.world.entity.Entity;
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import net.minecraft.world.entity.decoration.ArmorStand;
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import net.minecraft.world.entity.player.Player;
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import net.minecraft.world.phys.AABB;
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import net.minecraft.world.phys.Vec3;
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import java.util.concurrent.CompletableFuture;
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import java.util.concurrent.Executor;
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import java.util.concurrent.Executors;
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import java.util.concurrent.TimeUnit;
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public class CullTask implements Runnable {
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private volatile boolean requestCull = false;
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private volatile boolean scheduleNext = true;
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private volatile boolean inited = false;
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private final OcclusionCullingInstance culling;
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private final Player checkTarget;
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private final int hitboxLimit;
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public long lastCheckedTime = 0;
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// reused preallocated vars
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private final Vec3d lastPos = new Vec3d(0, 0, 0);
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private final Vec3d aabbMin = new Vec3d(0, 0, 0);
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private final Vec3d aabbMax = new Vec3d(0, 0, 0);
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private static final Executor backgroundWorker = Executors.newCachedThreadPool(task -> {
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final TickThread worker = new TickThread("EntityCulling") {
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@Override
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public void run() {
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task.run();
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}
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};
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worker.setDaemon(true);
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return worker;
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});
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private final Executor worker;
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public CullTask(
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OcclusionCullingInstance culling,
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Player checkTarget,
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int hitboxLimit,
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long checkIntervalMs
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) {
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this.culling = culling;
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this.checkTarget = checkTarget;
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this.hitboxLimit = hitboxLimit;
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this.worker = CompletableFuture.delayedExecutor(checkIntervalMs, TimeUnit.MILLISECONDS, backgroundWorker);
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}
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public void requestCullSignal() {
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this.requestCull = true;
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}
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public void signalStop() {
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this.scheduleNext = false;
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}
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public void setup() {
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if (!this.inited)
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this.inited = true;
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else
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return;
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this.worker.execute(this);
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}
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@Override
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public void run() {
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try {
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if (this.checkTarget.tickCount > 10) {
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// getEyePosition can use a fixed delta as its debug only anyway
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Vec3 cameraMC = this.checkTarget.getEyePosition(0);
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if (requestCull || !(cameraMC.x == lastPos.x && cameraMC.y == lastPos.y && cameraMC.z == lastPos.z)) {
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long start = System.currentTimeMillis();
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requestCull = false;
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lastPos.set(cameraMC.x, cameraMC.y, cameraMC.z);
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culling.resetCache();
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cullEntities(cameraMC, lastPos);
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lastCheckedTime = (System.currentTimeMillis() - start);
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}
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}
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} finally {
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if (this.scheduleNext) {
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this.worker.execute(this);
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}
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}
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}
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private void cullEntities(Vec3 cameraMC, Vec3d camera) {
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for (Entity entity : this.checkTarget.level().getEntities().getAll()) {
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if (!(entity instanceof Cullable cullable)) {
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continue; // Not sure how this could happen outside from mixin screwing up the inject into
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// Entity
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}
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if (entity.getType().skipRaytracningCheck) {
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continue;
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}
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if (!cullable.isForcedVisible()) {
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if (entity.isCurrentlyGlowing() || isSkippableArmorstand(entity)) {
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cullable.setCulled(false);
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continue;
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}
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if (!entity.position().closerThan(cameraMC, AtCoreConfig.RAY_TRACKING_ENTITY_TRACKER_CONFIG.tracingDistance)) {
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cullable.setCulled(false); // If your entity view distance is larger than tracingDistance just
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// render it
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continue;
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}
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AABB boundingBox = entity.getBoundingBox();
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if (boundingBox.getXsize() > hitboxLimit || boundingBox.getYsize() > hitboxLimit
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|| boundingBox.getZsize() > hitboxLimit) {
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cullable.setCulled(false); // Too big to bother to cull
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continue;
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}
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aabbMin.set(boundingBox.minX, boundingBox.minY, boundingBox.minZ);
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aabbMax.set(boundingBox.maxX, boundingBox.maxY, boundingBox.maxZ);
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boolean visible = culling.isAABBVisible(aabbMin, aabbMax, camera);
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cullable.setCulled(!visible);
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}
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}
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}
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private boolean isSkippableArmorstand(Entity entity) {
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if (!AtCoreConfig.RAY_TRACKING_ENTITY_TRACKER_CONFIG.skipMarkerArmorStands)
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return false;
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return entity instanceof ArmorStand && entity.isInvisible();
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}
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}

‎atdeprecated-server/src/main/java/dev/tr7zw/entityculling/DefaultChunkDataProvider.java‎

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package dev.tr7zw.entityculling;
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import com.logisticscraft.occlusionculling.DataProvider;
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import net.minecraft.core.BlockPos;
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import net.minecraft.world.level.Level;
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import net.minecraft.world.level.block.Blocks;
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import net.minecraft.world.level.chunk.ChunkAccess;
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public class DefaultChunkDataProvider implements DataProvider {
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private final Level level;
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public DefaultChunkDataProvider(Level level) {
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this.level = level;
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}
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@Override
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public boolean prepareChunk(int chunkX, int chunkZ) {
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return this.level.getChunkIfLoaded(chunkX, chunkZ) != null;
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}
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@Override
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public boolean isOpaqueFullCube(int x, int y, int z) {
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BlockPos pos = new BlockPos(x, y, z);
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final ChunkAccess access = this.level.getChunkIfLoaded(pos);
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if (access == null) {
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return false;
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}
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if (this.level.isOutsideBuildHeight(pos)) {
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return Blocks.VOID_AIR.defaultBlockState().isSolidRender();
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} else {
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return access.getBlockState(pos).isSolidRender();// 好孩子不要学坏叔叔这样绕过异步拦截()
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}
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}
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@Override
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public void cleanup() {
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DataProvider.super.cleanup();
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}
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}

‎atdeprecated-server/src/main/java/dev/tr7zw/entityculling/versionless/access/Cullable.java‎

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package dev.tr7zw.entityculling.versionless.access;
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public interface Cullable {
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public void setTimeout();
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public boolean isForcedVisible();
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public void setCulled(boolean value);
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public boolean isCulled();
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public void setOutOfCamera(boolean value);
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public boolean isOutOfCamera();
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}

‎atdeprecated-server/src/main/java/fun/mntale/atdeprecated/config/modules/experiment/RayTrackingEntityTrackerConfig.java‎

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@ConfigInfo(name = "check-interval-ms", comments = "The interval in milliseconds to check for culling.")
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public int checkIntervalMs = 500;
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@ConfigInfo(name = "skip-marker-armor-stands", comments = "Enable this to skip marker armor stands from being culled.")
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public boolean skipMarkerArmorStands = true;
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@Override
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public EnumConfigCategory getCategory() {
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return EnumConfigCategory.EXPERIMENT;

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