code: function () {
      var data = this.data;
      var i;
      var objectEls;
  
      // Push meshes onto list of objects to intersect.
      if (data.objects) {
        objectEls = this.el.sceneEl.querySelectorAll(data.objects);
        this.objects = [];
        for (i = 0; i < objectEls.length; i++) {
          this.objects.push(objectEls[i].object3D);
        }
        return;
      }
  
      // If objects not defined, intersect with everything.
      this.objects = this.el.sceneEl.object3D.children;
    }
docs: Update list of objects to test for intersection.