title: Cool tricks in postprocessing with normal map?
body: <p>This is a very specific question: I am looking to use normals in post processing. I have been looking at SSAO, but it seems slow and at low samples I don't see good results.</p>
  
  <p>At the moment I can use it for simple "lighting", but I figure there should be more and better possibilities. So, anyone know of any postprocessing tricks with normal maps?</p>
  
  <p>Edit: Bump maps I already know as well btw.</p>
  
  <p>Edit2: I found a cheaper SSAO shader also, <a href="http://blenderartists.org/forum/showthread.php?184102-nicer-and-faster-SSAO" rel="nofollow">http://blenderartists.org/forum/showthread.php?184102-nicer-and-faster-SSAO</a></p>