Only compile renderable objects (#29345)

src/renderers/WebGLRenderer.js

@@ -979,6 +979,12 @@ class WebGLRenderer {
 
 			scene.traverse( function ( object ) {
 
+				if ( ! ( object.isMesh || object.isPoints || object.isLine || object.isSprite ) ) {
+
+					return;
+
+				}
+
 				const material = object.material;
 
 				if ( material ) {