title: How to implement HD "Retina Display" graphics in Cocos2D
body: <p>I am not quite sure how use HD images for sprites in cocos2d.  I looked through the documentation, and downloaded the newest beta which supports points instead of pixels, but I don't understand the whole -hd suffix idea.  In other word I need help and have no idea how to use retina quality graphics in my cocos2d game.  I feel that it is very simple, but I cannot find anything on doing this.  Any help would be greatly appreciated.</p>
  
  <p>Ok so maybe this is asking too much but, it would be very helpful if someone could give me the code a tell me where to put it.  (Thats probably too much to ask)  But if it is a line or too,  it would be great if you could post it.  I am absolutely clueless here.  One thing I did try, was to set the content scale factor.  The image was hi-def, but the fps went way down to around 12fps on an iPod touch 4th gen.  I really do not understand this.</p>
  
  <p>Thanks,</p>
  
  <p>Tate</p>