anchor.diff:  
         }
   
  +      triggerAutoUpdate();
       }
   
       touchend( TouchEvent event ) {
  
positive.code: 
      }
  
      update() {
  
        _eye.setFrom( object.position ).sub( target );
  
negative.code:       dispatchEvent(startEvent);
        dispatchEvent(endEvent);
  
        triggerAutoUpdate();
      }
  
      touchstart( TouchEvent event ) {
  