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Add option to skip tracking for entities out of client render range #13456

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Add option to skip tracking for entities out of client render range #13456

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8e448ad
Create 0032-Skip-Entity-Tracking-Out-Of-Render-Range.patch
NewwindServer Dec 28, 2025
c6971d0
Update WorldConfiguration.java
NewwindServer Dec 28, 2025
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34 changes: 34 additions & 0 deletions paper-server/patches/features/0032-Skip-Entity-Tracking-Out-Of-Render-Range.patch
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Original file line number Diff line number Diff line change
@@ -0,0 +1,34 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Newwind <[email protected]>
Date: Fri, 28 Dec 2025 19:17:32 +0200
Subject: [PATCH] Skip entity tracking out of render range


diff --git a/net/minecraft/server/level/ChunkMap.java b/net/minecraft/server/level/ChunkMap.java
index ab88931..38985c1 100644
--- a/net/minecraft/server/level/ChunkMap.java
+++ b/net/minecraft/server/level/ChunkMap.java
@@ -1045,6 +1045,9 @@ public class ChunkMap extends SimpleRegionStorage implements ChunkHolder.PlayerP
private void newTrackerTick() {
final ca.spottedleaf.moonrise.patches.chunk_system.level.entity.server.ServerEntityLookup entityLookup = (ca.spottedleaf.moonrise.patches.chunk_system.level.entity.server.ServerEntityLookup)((ca.spottedleaf.moonrise.patches.chunk_system.level.ChunkSystemServerLevel)this.level).moonrise$getEntityLookup();;

+ // Client entity view distance scale heuristic copied from LevelRenderer.extractVisibleEntities()
+ Entity.setViewScale(Mth.clamp(serverViewDistance / 8.0, 1.0, 2.5) * level.paperConfig().misc.skipTrackingOutOfRenderRangeEntitiesClientDistanceScaling);
+
final ca.spottedleaf.moonrise.common.list.ReferenceList<net.minecraft.world.entity.Entity> trackerEntities = entityLookup.trackerEntities;
final Entity[] trackerEntitiesRaw = trackerEntities.getRawDataUnchecked();
for (int i = 0, len = trackerEntities.size(); i < len; ++i) {
@@ -1381,6 +1384,13 @@ public class ChunkMap extends SimpleRegionStorage implements ChunkHolder.PlayerP
if (flag && !player.getBukkitEntity().canSee(this.entity.getBukkitEntity())) { // Paper - only consider hits
flag = false;
}
+ if (flag && level.paperConfig().misc.skipTrackingOutOfRenderRangeEntities) {
+ double vec3_dy = player.getY() - this.entity.getY();
+ double sqrDistance = d1 + (vec3_dy * vec3_dy);
+ if (!this.entity.shouldRenderAtSqrDistance(sqrDistance)) {
+ flag = false;
+ }
+ }
// CraftBukkit end
if (flag) {
if (this.seenBy.add(player.connection)) {
2 changes: 2 additions & 0 deletions paper-server/src/main/java/io/papermc/paper/configuration/WorldConfiguration.java
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Expand Up @@ -578,6 +578,8 @@ public class Misc extends ConfigurationPart {
public boolean disableRelativeProjectileVelocity = false;
public boolean legacyEnderPearlBehavior = false;
public boolean allowRemoteEnderDragonRespawning = false;
public boolean skipTrackingOutOfRenderRangeEntities = false;
public float skipTrackingOutOfRenderRangeEntitiesClientDistanceScaling = 1.0f;

public enum RedstoneImplementation {
VANILLA, EIGENCRAFT, ALTERNATE_CURRENT
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