= window.innerWidth / window.innerHeight;
			camera.updateProjectionMatrix();

			renderer.setSize( window.innerWidth, window.innerHeight );
			pickingRenderTarget.setSize( window.innerWidth, window.innerHeight );

		}

		function animate() {

			if ( doAnimate ) {

				requestAnimationFrame( animate );

			}

			controls.update();
			stats.update();

			render();

		}

		function pick() {

			// render the picking scene off-screen

			highlightBox.visible = false;

			if ( singlePickingMaterial ) {

				sc