In article <3A0### [at] alpharayde>, Paul Blaszczyk 
<3d### [at] alpharayde> wrote:

> it is right, that the maximum of recursion_limit is 6?? I've rendered 
> a test-scene with several values for recursion_limit...after 6 all 
> rendering times (also at 100 and 150) were the same as at 6.

I think that sampling stops when it gets to the point that additional 
samples won't make much difference. It could be that with your settings, 
recursion levels beyond 6 would make such a small contribution that they 
are dropped. Something like the ADC settings.

-- 
Christopher James Huff
Personal: chr### [at] maccom, http://homepage.mac.com/chrishuff/
TAG: chr### [at] tagpovrayorg, http://tag.povray.org/

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"Chris Huff" <chr### [at] maccom> wrote...
> Paul Blaszczyk  <3d### [at] alpharayde> wrote:
>
> > it is right, that the maximum of recursion_limit is 6?? I've rendered
> > a test-scene with several values for recursion_limit...after 6 all
> > rendering times (also at 100 and 150) were the same as at 6.
>
> I think that sampling stops when it gets to the point that additional
> samples won't make much difference. It could be that with your settings,
> recursion levels beyond 6 would make such a small contribution that they
> are dropped. Something like the ADC settings.

Yes.  There is an ADC bailout setting specifically for radiosity (separate
from the usual ADC bailout setting).  See the MegaPov docs for more info.

-Nathan

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Nathan Kopp wrote:
> 
> "Chris Huff" <chr### [at] maccom> wrote...
> > Paul Blaszczyk  <3d### [at] alpharayde> wrote:
> >
> > > it is right, that the maximum of recursion_limit is 6?? I've rendered
> > > a test-scene with several values for recursion_limit...after 6 all
> > > rendering times (also at 100 and 150) were the same as at 6.
> >
> > I think that sampling stops when it gets to the point that additional
> > samples won't make much difference. It could be that with your settings,
> > recursion levels beyond 6 would make such a small contribution that they
> > are dropped. Something like the ADC settings.
> 
> Yes.  There is an ADC bailout setting specifically for radiosity (separate
> from the usual ADC bailout setting).  See the MegaPov docs for more info.

It doesn't seem to work like the docs suggest, though. I've set it to 1
and had no real difference on a scene except to smooth out the radiosity
a little. In fact, based on my limited experience, I'd suggest leaving
it set at 1 all the time.

-Xplo

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