Merge pull request #21077 from Mugen87/dev2

WebGLGeometries: Simplify code.

src/renderers/webgl/WebGLGeometries.js

@@ -3,40 +3,39 @@ import { arrayMax } from '../../utils.js';
 
 function WebGLGeometries( gl, attributes, info, bindingStates ) {
 
-	const geometries = new WeakMap();
+	const geometries = {};
 	const wireframeAttributes = new WeakMap();
 
 	function onGeometryDispose( event ) {
 
 		const geometry = event.target;
-		const buffergeometry = geometries.get( geometry );
 
-		if ( buffergeometry.index !== null ) {
+		if ( geometry.index !== null ) {
 
-			attributes.remove( buffergeometry.index );
+			attributes.remove( geometry.index );
 
 		}
 
-		for ( const name in buffergeometry.attributes ) {
+		for ( const name in geometry.attributes ) {
 
-			attributes.remove( buffergeometry.attributes[ name ] );
+			attributes.remove( geometry.attributes[ name ] );
 
 		}
 
 		geometry.removeEventListener( 'dispose', onGeometryDispose );
 
-		geometries.delete( geometry );
+		delete geometries[ geometry.id ];
 
-		const attribute = wireframeAttributes.get( buffergeometry );
+		const attribute = wireframeAttributes.get( geometry );
 
 		if ( attribute ) {
 
 			attributes.remove( attribute );
-			wireframeAttributes.delete( buffergeometry );
+			wireframeAttributes.delete( geometry );
 
 		}
 
-		bindingStates.releaseStatesOfGeometry( buffergeometry );
+		bindingStates.releaseStatesOfGeometry( geometry );
 
 		if ( geometry.isInstancedBufferGeometry === true ) {
 
@@ -52,27 +51,15 @@ function WebGLGeometries( gl, attributes, info, bindingStates ) {
 
 	function get( object, geometry ) {
 
-		let buffergeometry = geometries.get( geometry );
-
-		if ( buffergeometry ) return buffergeometry;
+		if ( geometries[ geometry.id ] === true ) return geometry;
 
 		geometry.addEventListener( 'dispose', onGeometryDispose );
 
-		if ( geometry.isBufferGeometry ) {
-
-			buffergeometry = geometry;
-
-		} else {
-
-			console.log( 'TODO: Remove this', geometry );
-
-		}
-
-		geometries.set( geometry, buffergeometry );
+		geometries[ geometry.id ] = true;
 
 		info.memory.geometries ++;
 
-		return buffergeometry;
+		return geometry;
 
 	}