Hello all...

I now ported my progressive refinement patch to POVRay-3.6. 
Details: 
http://www.cip.physik.uni-muenchen.de/~wwieser/render/povray/prt-patch/

News: 
  Verfiied to work with radiosity and photons. 
  Code cleaned up and split into several files. 
  Critical parts (2 major ones) marked with "FIXME"

Unfortunately it turned out that it is not possible to write this patch 
without a platform-dependent part. So, I decided to write the full-featured 
UNIX patch. 

If anybody is interested in having this patch work on his Windows or MAC 
computer and has the necessary skills to implement at least the function 
  POV_DISPLAY_UPDATE_RECT(handle,x,y,w,h)
(which simply puts the passed rectangular image region from off-screen 
storage onto the screen), then please volunteer and contact me. 

I'm interested in comments on the patch (functionality and source). 

Regards,
Wolfgang

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