From 0eda1956e7739c969ead24ee4d0783b4294c17b9 Mon Sep 17 00:00:00 2001
From: sunag <sunagbrasil@gmail.com>
Date: Mon, 15 Dec 2025 10:16:22 -0300
Subject: [PATCH 1/2] Lighting: Refactor camera usage (#32557)

---
 src/renderers/common/Lighting.js      | 26 +++++---------------------
 src/renderers/common/RenderObject.js  |  2 +-
 src/renderers/common/RenderObjects.js | 20 ++++++++++++++++++--
 3 files changed, 24 insertions(+), 24 deletions(-)

diff --git a/src/renderers/common/Lighting.js b/src/renderers/common/Lighting.js
index 1d332ee7eedc0c..b9685bd02ee504 100644
--- a/src/renderers/common/Lighting.js
+++ b/src/renderers/common/Lighting.js
@@ -1,8 +1,7 @@
 import { LightsNode } from '../../nodes/Nodes.js';
-import ChainMap from './ChainMap.js';
 
 const _defaultLights = /*@__PURE__*/ new LightsNode();
-const _chainKeys = [];
+const _weakMap = /*@__PURE__*/ new WeakMap();
 
 /**
  * This renderer module manages the lights nodes which are unique
@@ -12,18 +11,8 @@ const _chainKeys = [];
  * with the actual lights from the scene.
  *
  * @private
- * @augments ChainMap
  */
-class Lighting extends ChainMap {
-
-	/**
-	 * Constructs a lighting management component.
-	 */
-	constructor() {
-
-		super();
-
-	}
+class Lighting {
 
 	/**
 	 * Creates a new lights node for the given array of lights.
@@ -44,26 +33,21 @@ class Lighting extends ChainMap {
 	 * @param {Camera} camera - The camera.
 	 * @return {LightsNode} The lights node.
 	 */
-	getNode( scene, camera ) {
+	getNode( scene ) {
 
 		// ignore post-processing
 
 		if ( scene.isQuadMesh ) return _defaultLights;
 
-		_chainKeys[ 0 ] = scene;
-		_chainKeys[ 1 ] = camera;
-
-		let node = this.get( _chainKeys );
+		let node = _weakMap.get( scene );
 
 		if ( node === undefined ) {
 
 			node = this.createNode();
-			this.set( _chainKeys, node );
+			_weakMap.set( scene, node );
 
 		}
 
-		_chainKeys.length = 0;
-
 		return node;
 
 	}
diff --git a/src/renderers/common/RenderObject.js b/src/renderers/common/RenderObject.js
index 702373ee77564e..ab457f6db3ab20 100644
--- a/src/renderers/common/RenderObject.js
+++ b/src/renderers/common/RenderObject.js
@@ -882,7 +882,7 @@ class RenderObject {
 
 		}
 
-		cacheKey = hash( cacheKey, this.camera.id, this.renderer.contextNode.id, this.renderer.contextNode.version );
+		cacheKey = hash( cacheKey, this.renderer.contextNode.id, this.renderer.contextNode.version );
 
 		return cacheKey;
 
diff --git a/src/renderers/common/RenderObjects.js b/src/renderers/common/RenderObjects.js
index 0495aa7d50effa..fc742b42a2f967 100644
--- a/src/renderers/common/RenderObjects.js
+++ b/src/renderers/common/RenderObjects.js
@@ -91,12 +91,15 @@ class RenderObjects {
 
 		const chainMap = this.getChainMap( passId );
 
-		// reuse chainArray
+		// set chain keys
+
 		_chainKeys[ 0 ] = object;
 		_chainKeys[ 1 ] = material;
 		_chainKeys[ 2 ] = renderContext;
 		_chainKeys[ 3 ] = lightsNode;
 
+		//
+
 		let renderObject = chainMap.get( _chainKeys );
 
 		if ( renderObject === undefined ) {
@@ -107,6 +110,12 @@ class RenderObjects {
 
 		} else {
 
+			// update references
+
+			renderObject.camera = camera;
+
+			//
+
 			renderObject.updateClipping( clippingContext );
 
 			if ( renderObject.needsGeometryUpdate ) {
@@ -133,7 +142,14 @@ class RenderObjects {
 
 		}
 
-		_chainKeys.length = 0;
+		// reset chain array
+
+		_chainKeys[ 0 ] = null;
+		_chainKeys[ 1 ] = null;
+		_chainKeys[ 2 ] = null;
+		_chainKeys[ 3 ] = null;
+
+		//
 
 		return renderObject;
 

From 81f1bca2a658d4ae928388ebd85238331afd02e7 Mon Sep 17 00:00:00 2001
From: sunag <sunagbrasil@gmail.com>
Date: Mon, 15 Dec 2025 10:16:48 -0300
Subject: [PATCH 2/2] UniformGroups: Partially updates (#32558)

---
 src/renderers/common/UniformsGroup.js | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/src/renderers/common/UniformsGroup.js b/src/renderers/common/UniformsGroup.js
index 029947c8cbc214..84628d35bd26c6 100644
--- a/src/renderers/common/UniformsGroup.js
+++ b/src/renderers/common/UniformsGroup.js
@@ -235,6 +235,8 @@ class UniformsGroup extends UniformBuffer {
 			b[ offset ] = a[ offset ] = v;
 			updated = true;
 
+			this.addUpdateRange( offset, 1 );
+
 		}
 
 		return updated;
@@ -265,6 +267,8 @@ class UniformsGroup extends UniformBuffer {
 
 			updated = true;
 
+			this.addUpdateRange( offset, 2 );
+
 		}
 
 		return updated;
@@ -296,6 +300,8 @@ class UniformsGroup extends UniformBuffer {
 
 			updated = true;
 
+			this.addUpdateRange( offset, 3 );
+
 		}
 
 		return updated;
@@ -328,6 +334,8 @@ class UniformsGroup extends UniformBuffer {
 
 			updated = true;
 
+			this.addUpdateRange( offset, 4 );
+
 		}
 
 		return updated;
@@ -358,6 +366,8 @@ class UniformsGroup extends UniformBuffer {
 
 			updated = true;
 
+			this.addUpdateRange( offset, 3 );
+
 		}
 
 		return updated;
@@ -396,6 +406,8 @@ class UniformsGroup extends UniformBuffer {
 
 			updated = true;
 
+			this.addUpdateRange( offset, 12 );
+
 		}
 
 		return updated;
@@ -423,6 +435,8 @@ class UniformsGroup extends UniformBuffer {
 			setArray( a, e, offset );
 			updated = true;
 
+			this.addUpdateRange( offset, 16 );
+
 		}
 
 		return updated;