Light.add(spotLightHelper);

		const camera = new t3d.Camera();
		camera.position.set(-80, 30, 80);
		camera.lookAt(new t3d.Vector3(0, 26, 0), new t3d.Vector3(0, 1, 0));
		camera.setPerspective(45 / 180 * Math.PI, width / height, 0.1, 1000);
		scene.add(camera);

		const controller = new OrbitControls(camera, canvas);
		controller.target.set(0, 26, 0);

		function setLightPosition(angle) {
			spotLight.position.x = -Math.sin(angle / 180 * Math.PI) * 60;
			spotLight.position.y = 50;
			spotLight.position.z 