controls.keys = [ 'KeyA', 'KeyS', 'KeyD' ];

			}

			function onWindowResize() {

				const aspect = window.innerWidth / window.innerHeight;

				perspectiveCamera.aspect = aspect;
				perspectiveCamera.updateProjectionMatrix();

				orthographicCamera.left = - frustumSize * aspect / 2;
				orthographicCamera.right = frustumSize * aspect / 2;
				orthographicCamera.top = frustumSize / 2;
				orthographicCamera.bottom = - frustumSize / 2;
				orthographicCamera.updateProjectionMatrix();

				renderer.setSiz