dingBox = new t3d.Box3();
		const targetBoundingSphere = new t3d.Sphere();

		const boundingBoxHelper = new Box3Helper(targetBoundingBox);
		boundingBoxHelper.visible = false;
		scene.add(boundingBoxHelper);
		const boundingSphereHelper = new SphereHelper(targetBoundingSphere);
		boundingSphereHelper.visible = false;
		scene.add(boundingSphereHelper);

		//

		const stats = new Stats();
		stats.domElement.style.position = 'absolute';
		stats.domElement.style.top = '0px';
		canvas.parentElement.appendChild(s