> I've found that in architectural-type images it works better to increase
the
> minimum_reuse and the count, and decrease the error_bound.  Also,
increasing
> the recursion_limit will increase the brightness a little bit.
>
> I found this to work okay for my last scene:
>      pretrace_start 1
>      pretrace_end   0.01
>      count 600
>      nearest_count 5
>      error_bound 0.25
>      recursion_limit 5
>      low_error_factor .5
>      gray_threshold 0.0
>      minimum_reuse 0.05
>      brightness 1
>      adc_bailout 0.01/1

That did the trick, thank you!
This is the first scene I'm making which depends so much on radiosity,
there's a lot to learn.

-Peter

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