 
     func setupAnimator() {
         self.animator = ARNTransitionAnimator(operationType: .Present, fromVC: self, toVC: modalVC!)
+        
+        // Present
         
         self.animator.presentationBeforeHandler = { [weak self] (containerView: UIView, transitionContext: UIViewControllerContextTransitioning) in
             

            self!.imageView.transform = CGAffineTransformIdentity
        }
        
        self.modalVC.transitioningDelegate = self.animator
    }
}
            self!.imageView.transform = CGAffineTransformScale(self!.imageView.transform, 1.0 - 0.1 * percentComplete, 1.0 - 0.1 * percentComplete)
        }
        
        // Dismiss
        
        self.animator.dismissalAnimationHandler = { [weak self] (containerView: UIView, percentComplete: CGFloat) in
            let containerViewHeight = self!.modalVC.containerView.frame.size.height
