title: How do I prevent Core Animation blocking my main thread?
body: <p>I'm aware of the fact that Core Animation dispatches its animations in a seperate thread, as stated in the documentation. Nevertheless, my animations seem to be blocking my main thread. All animations start and finnish. (With or without kCATransactionDisableActions set as true.) but become jumpy and the main runloop stalls.</p>
  
  <p>What am I doing wrong?</p>
  
  <p><em>Conceptual example:</em></p>
  
  <pre><code>[NSTimer scheduledTimerWithTimeInterval:0.0333  target:self selector:@selector(gameEngine) userInfo:nil repeats:YES];
  
  - (void)gameEngine 
  {    
     [CATransaction begin];
     [CATransaction setValue:(id)kCFBooleanTrue forKey:kCATransactionDisableActions];
     myLayer.position = CGPointMake( newX, newY);
     [CATransaction commit];    
  }
  </code></pre>