e.add(ambientLight);

		const directionalLight = new t3d.DirectionalLight(0xffffff, 0.7);
		directionalLight.position.set(20, 30, 40);
		directionalLight.lookAt(new t3d.Vector3(), new t3d.Vector3(0, 1, 0));
		directionalLight.shadow.windowSize = 100;
		directionalLight.castShadow = true;
		scene.add(directionalLight);

		const camera = new t3d.Camera();
		camera.position.set(0, 0, 20);
		camera.lookAt(new t3d.Vector3(0, 0, 0), new t3d.Vector3(0, 1, 0));
		camera.setPerspective(45 / 180 * Math.PI, width / he