text: camera.far = 5;
  stage.rotationX = 45;
  directionLight.shadow = {};
  var glTFLoader = new Hilo3d.GLTFLoader();
  glTFLoader.load({
      src: 'https://ossgw.alicdn.com/tmall-c3/tmx/2dad5b25faf1bece0e4c756a9057dabb.gltf'
  }).then(function (model) {
      window.model = model;
      model.node.setScale(0.008);
      model.materials.map(function (m) {
          m.side = Hilo3d.constants.FRONT_AND_BACK;
      });
      model.node.onUpdate = function(){
          this.rotationY += 1;
      };
      stage.addChild(model.node);
      model.node.pivotZ = -30;
      model.node.z = -model.node.pivotZ;
  });
  var plane = new Hilo3d.Mesh({
      y: -.4,
      rotationX: -90,
      geometry: new Hilo3d.PlaneGeometry(),
      material: new Hilo3d.BasicMaterial({
          lightType:'LAMBERT',
          side: Hilo3d.constants.FRONT_AND_BACK,
          diffuse:new Hilo3d.Color(.612, .612, .612)
      })
  });
  plane.setScale(1.8);
  stage.addChild(plane);