Rick Measham wrote:

>         radiosity {
>             pretrace_start 0.08
>             pretrace_end   0.04
>             count 85
> 
>             nearest_count 5
>             error_bound 1.8
>             recursion_limit 12
> 
>             low_error_factor 0.5
>             gray_threshold 0.0
>             minimum_reuse 0.015
>             brightness 1.2
> 
>             adc_bailout 0.01/2
>         }

I didn't see your post in .general, but...

Holy crap!

recursion_limit 1 is enough for scenes with a lot of ambient light 
(skylight, lots of artificial lighting, etc). 2 will do for most scenes 
with less light and lots of shadows, and you should only go to 3 if 
you're trying to bounce light around a few corners or you're doing a 
fancy final render of a scene that normally gets 2. Beyond 3, the 
differences are usually imperceptible.

The more you increase the recursion, generally speaking, the more 
inaccurate and artifacted your radiosity gets. I don't know that this is 
the problem, but try cutting that 12 down to 2.

Also, you really ought to decrease that error_bound. .3 or less will 
resolve small shadow details, but tends to be pretty slow and needs a 
higher count for smooth results; .5 - 1 will do for an approximation of 
realistic lighting.

-Xplo

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