POV-Ray : Newsgroups : povray.newusers : question on radiosity : Re: question on radiosity Server Time
29 Jul 2024 18:24:32 EDT (-0400)
  Re: question on radiosity  
From: Warp
Date: 16 May 2005 20:06:37
Message: <4289358d@news.povray.org>
JYR <jyr### [at] hotmailcom> wrote:
> Hi all!
> I'd like to know if i'm missing something about the way radiosity works,
> especially the effect of the "pretrace_end" parameter.  I'm in the
> impression that the lower it is, the longer the pretrace step, obviously.
> But, otoh, more and better radiosity values are being gathered during
> pretrace, allowing the final pass to be done with more relaxed parameters
> (such as a lower "count", a higher "adc_bailout", etc...), and thus to be
> completed faster.  For instance, let's say your pretrace takes 10 min
> instead of 2, but the final pass takes 12 hours instead of 24, for a fairly
> complex scene, that is.

> Now, the docs tend to say that lowering "pretrace_end" enhances quality at
> the mere expense of speed...

> Since i'm still fairly new at POV, i'd appreciate your thoughts on the
> subject.  Thanks !

  I don't see anything wrong in your interpretation.

  What was your question anyways?-)

-- 
                                                          - Warp


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