tion.y = 25 * Math.sin(elapsedTime * 1.2) + 25;

			spotLightHelper.update();

			forwardRenderer.render(scene, camera);
		}
		requestAnimationFrame(loop);

		function onWindowResize() {
			width = window.innerWidth || 2;
			height = window.innerHeight || 2;

			camera.setPerspective(45 / 180 * Math.PI, width / height, 1, 1000);

			forwardRenderer.backRenderTarget.resize(width, height);
		}
		window.addEventListener('resize', onWindowResize, false);
	</script>
</body>
</html>