TextureTransformTest.gltf'
		).then(function(result) {
			result.root.traverse(function(obj) {
				if (obj.isMesh) {
					obj.frustumCulled = false;
					obj.material.side = t3d.DRAW_SIDE.DOUBLE;
				}
			});

			// add mesh to scene
			const children = result.root.children.slice(0);
			for (let i = 0, l = children.length; i < l; i++) {
				scene.add(children[i]);
			}
		}).catch(e => console.error(e));

		const ambientLight = new t3d.AmbientLight(0xffffff, 1.2);
		scene.add(ambientLight);

		const camera =