Wolfgang Wieser wrote:
> Hi all...
> 
> Some time back, I had the idea that one could implement progressive 
> refinement for POVRay -- something like anti-aliasing for larger pixels. 
> 
> Sombody else suggested in some news group that it would be nice to use 
> the mouse to manually select regions to be drawn. 
> 
> Yesterday, I sat down and wrote a patch which does both these things. 
> 
> The final image will look just as it does with normal povray because 
> all pixels are traced in the end. However, the patch enables you to 
> see the important things earlier during rendering. And: it has little 
> overhead. 

Interesting idea, it might be a good idea to try the effect on radiosity 
scenes if this method is used instead of the pretrace.

Christoph

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