code: function (doneCb) {
      var el = this.el;
      var self = this;
  
      if (this.data.cameraOverride) {
        prepareCamera(this.data.cameraOverride);
        return;
      }
  
      // Grab camera.
      if (el.camera && el.camera.el) {
        prepareCamera(el.camera.el);
        return;
      }
  
      el.addEventListener('camera-set-active', function setup (evt) {
        prepareCamera(evt.detail.cameraEl);
        el.removeEventListener('camera-set-active', setup);
      });
  
      function prepareCamera (cameraEl) {
        if (self.cameraEl) {
          self.cameraEl.removeAttribute('motion-capture-recorder');
        }
        self.cameraEl = cameraEl;
        cameraEl.setAttribute('motion-capture-recorder', {
          autoRecord: false,
          visibleStroke: false
        });
        doneCb(cameraEl)
      }
    }
docs: Set motion capture recorder on the camera once the camera is ready.