POV-Ray : Newsgroups : povray.advanced-users : accuracy of global illumination : Re: accuracy of global illumination Server Time
28 Jul 2024 10:16:26 EDT (-0400)
  Re: accuracy of global illumination  
From: Christoph Hormann
Date: 2 Mar 2006 05:25:03
Message: <du6gum$jvn$1@chho.imagico.de>
bluefox wrote:
> Hi,
> I would like to use povray for a scientific application in which I need to
> accurately (<=1%) calculate global illumination in simple, idealized
> geometries with area sources. Does anybody know or have experience with how
> accurate povray is? Are there any hidden simplifications that inhibit an
> exact, physically correct calculation?

For what it tries to simulate (namely diffuse interreflection between 
lambertian surfaces) POV-Ray's radiosity system converges to the correct 
solution.  Like for all monte carlo simulation techniques error bounds 
can only be measured as statistical probabilities and errors of course 
do not only depend on the simulation parameters but on the scene as well.

Christoph

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