Warp wrote:
> 
>   Try inverting that image (ie. making it negative) with an image editing
> program. Looks almost natural.
> 

Yes, indeed.  

The reason is probably that the slowest regions are those where most
radiosity samples are not taken from the sky but from the isosurface
itself.  

Christoph

-- 
Christoph Hormann <chr### [at] gmxde>
IsoWood include, radiosity tutorial, TransSkin and other 
things on: http://www.schunter.etc.tu-bs.de/~chris/

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