From 0a868eab9a6d6be330cdbb1a5f18c0d99c7c7ccb Mon Sep 17 00:00:00 2001
From: "Alaric.Baraou" <alaric.baraou@gmail.com>
Date: Wed, 20 Nov 2024 21:26:05 +0900
Subject: [PATCH] fix SceneOptimizer (#29935)

---
 examples/jsm/utils/SceneOptimizer.js | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/examples/jsm/utils/SceneOptimizer.js b/examples/jsm/utils/SceneOptimizer.js
index 14e56c35a78977..84c4854c8ce84f 100644
--- a/examples/jsm/utils/SceneOptimizer.js
+++ b/examples/jsm/utils/SceneOptimizer.js
@@ -46,6 +46,7 @@ class SceneOptimizer {
 	getMaterialPropertiesHash( material ) {
 
 		const mapProps = [
+			'map',
 			'alphaMap',
 			'aoMap',
 			'bumpMap',
@@ -237,7 +238,15 @@ class SceneOptimizer {
 				0
 			);
 
-			const batchedMaterial = new THREE.MeshPhysicalMaterial( group.materialProps );
+			const batchedMaterial = new group.materialProps.constructor( group.materialProps );
+
+			if ( batchedMaterial.color !== undefined ) {
+
+				// Reset color to white, color will be set per instance
+				batchedMaterial.color.set( 1, 1, 1 );
+
+			}
+
 			const batchedMesh = new THREE.BatchedMesh(
 				maxGeometries,
 				maxVertices,