title: SCNTransaction AnimationOptions
body: <p>I have an animation in my SceneKit project. It animates the node that is pressed. Now, the animation works with this code:</p>
  
  <pre><code>SCNTransaction.begin()
  SCNTransaction.setAnimationDuration(0.5)
      SCNTransaction.setCompletionBlock {
          SCNTransaction.begin()
          SCNTransaction.setAnimationDuration(0.5)
          result.node!.position.y -= 1
          SCNTransaction.commit()
      }
      result.node!.position.y += 1
      SCNTransaction.commit()
  }
  </code></pre>
  
  <p>I want to make the node seem like it is jumping, therefore I would like to use some animation options, such as you can use with a UIView: <code>CurveEaseIn</code> etc.. (I want it to start slowly, end abrupt. The second should be abrupt first, then slowly.)</p>
  
  <p>Is there a way to use these for a <code>SCNTransaction</code>? Or is there maybe a better way to make it 'bounce'?</p>
  
  <p>Thanks in advance :)</p>