 * window.devicePixelRatio, height * window.devicePixelRatio );

			}

			function animate() {

				requestAnimationFrame( animate );
				render();

			}

			function render() {

				window.composer = composer;
				if ( params.postprocessing ) {

					composer.render();

				} else {

					renderer.setRenderTarget( renderTarget );
					renderer.render( scene, camera );
					renderer.setRenderTarget( null );

					copyQuad.material.uniforms.tDiffuse.value = renderTarget.texture;
					copyQuad.render( rendere