REE.Scene();
				scene.background = new THREE.Color( 0xeeeeee );

				const ambient = new THREE.HemisphereLight( 0xffffff, 0x999999, 3 );
				scene.add( ambient );

				// renderer
				renderer = new THREE.WebGLRenderer( { antialias: true } );
				renderer.setPixelRatio( window.devicePixelRatio );
				renderer.setSize( window.innerWidth, window.innerHeight );
				renderer.setAnimationLoop( animate );
				document.body.appendChild( renderer.domElement );

				stats = new Stats();
				document.body.appendChil