code: function () {
      var data = this.data;
      var els;
  
      // If objects not defined, intersect with everything.
      els = data.objects
        ? this.el.sceneEl.querySelectorAll(data.objects)
        : this.el.sceneEl.querySelectorAll('*');
      this.objects = this.flattenObject3DMaps(els);
      this.dirty = false;
    }
docs: Update list of objects to test for intersection.