JRG wrote:
> 
> Using pretrace_start 1 and pretrace_end 1 should do the trick though...
> 

But this can be much slower and can lead to worse results in some
situations.  As a rule of thumb you can say it works quite well with low
error_bound, but it depends on the situation.

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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