diff --git a/src/renderers/webgl/WebGLRenderLists.js b/src/renderers/webgl/WebGLRenderLists.js
index 2839e8b94ac61e..c3909d4355c46a 100644
--- a/src/renderers/webgl/WebGLRenderLists.js
+++ b/src/renderers/webgl/WebGLRenderLists.js
@@ -56,6 +56,8 @@ function WebGLRenderList() {
 	const transmissive = [];
 	const transparent = [];
 
+	const objectIdToRenderItem = new Map();
+
 	function init() {
 
 		renderItemsIndex = 0;
@@ -64,6 +66,8 @@ function WebGLRenderList() {
 		transmissive.length = 0;
 		transparent.length = 0;
 
+		objectIdToRenderItem.clear();
+
 	}
 
 	function getNextRenderItem( object, geometry, material, groupOrder, z, group ) {
@@ -122,6 +126,8 @@ function WebGLRenderList() {
 
 		}
 
+		objectIdToRenderItem.set( object.id, renderItem );
+
 	}
 
 	function unshift( object, geometry, material, groupOrder, z, group ) {
@@ -142,6 +148,8 @@ function WebGLRenderList() {
 
 		}
 
+		objectIdToRenderItem.set( object.id, renderItem );
+
 	}
 
 	function sort( customOpaqueSort, customTransparentSort ) {
@@ -178,6 +186,8 @@ function WebGLRenderList() {
 		transmissive: transmissive,
 		transparent: transparent,
 
+		objectIdToRenderItem: objectIdToRenderItem,
+
 		init: init,
 		push: push,
 		unshift: unshift,