2d games in openGL
<p>hai I am new to iphone development. I used NSTimer scheduledTimerWithTimeInterval 0.01 seconds for game loop. The game consists drawscreen function inwhich I use CGContextClipToRect to clip the large images for animation. But the speed 0.01 seconds is working in simulator only not in the iphone(device). How can i overcome this problem? I respect your reply......you have told about it in previous post. But i could not understand.....
  can anyone give tutorial to do this in openGL like (CGContextClipToRect in openGL),animation
of 2d images,drawing,clipping etc,sample source code.....</p>
