On 1-11-2014 15:39, Bald Eagle wrote:
> I'm currently experiencing a major bottleneck in the radiosity-enabled render.
> It seems to me to be hanging up on the heightfield frame of the big round mirror
> on the left.
>
> I'll try to pore over the docs again, but I'd appreciate it if someone could
> suggest a quick (heh) fix to get past those sticky spots.  It went fairly fast
> until it hit that, and now it's 12 hours later and still struggling.
> WHAT is it _doing_??!
>
> Also, is there a _short_ concise explanation of this file that radiosity can
> generate?  If I suffer through this once, does it make subsequent renders vastly
> faster?
>
> Thanks!
>
> pretrace_start 0.08
> pretrace_end 0.04
> count 35
> nearest_count 5
> error_bound 0.5
> recursion_limit 3
> low_error_factor 0.5
> gray_threshold 0.0
> minimum_reuse 0.015
> maximum_reuse 0.2
> brightness 1
> adc_bailout 0.01
>
>

Does the height_field have some reflections enabled? You try do switch 
that off. As far as the radiosity is concerned, I do not see anything 
that really slows down a render; I use those settings currently myself. 
You can increase error_bound to 1.0 and try with recursion_limit 2.

Thomas

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