"Ard" <ard### [at] waikatoacnz> wrote...
> Hi folks.  The floor of the gap between these two boxes is in total
> darkness, so I'm using radiosity to bring it out.  The default
> radiosity settings produce the inset image, with obvious horizontal
> artifacts.
>
> After a few renders I ended up with
>
>  count 80 nearest_count 8 error_bound 0.1
>  pretrace_end 0.02 adc_bailout 0.01

Usually black spots with radiosity around reflective objects means that you
need to decrease the adc_bailout and/or increase the max_trace_level.

-Nathan

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