get( 'ANGLE_instanced_arrays' ) === null ) {

				document.getElementById( "notSupported" ).style.display = "";
				return;

			}
			renderer.setPixelRatio( window.devicePixelRatio );
			renderer.setSize( window.innerWidth, window.innerHeight );
			//renderer.sortObjects = false;
			container.appendChild( renderer.domElement );

			if ( renderer.extensions.get( 'ANGLE_instanced_arrays' ) === null ) {

				throw 'ANGLE_instanced_arrays not supported';

			}

			// controls

			controls = new THREE.TrackballC