POV-Ray : Newsgroups : povray.newusers : Accuracy of Optics : Re: Accuracy of Optics Server Time
8 May 2024 14:53:03 EDT (-0400)
  Re: Accuracy of Optics  
From: Ben
Date: 18 Nov 2011 21:05:00
Message: <web.4ec70e37e4b1b8ff9ead97900@news.povray.org>
Thanks!  Can you recommend any unbiased renderers, then?  My goal is to
eventually produce real optical devices to test the predicted results (series of
optics).


Warp <war### [at] tagpovrayorg> wrote:
> Ben <nomail@nomail> wrote:
> > Can POVRay be used to make nearly-accurate-to-physics models for optics beyond
> > refraction and reflection... to diffraction, interference, etc.?
>
>   Short answer: No.
>
>   The so-called unbiased renderers, which support BRDF definitions, are
> designed for this exact purpose. In other words, if you are able to
> describe the physical property of an object with a BRDF, the renderer
> will then be able to simulate that property with a high degree of accuracy.
> (Of course in many cases it will be extremely slow, and getting a good,
> non-grainy result can take humongous amounts of time.)
>
>   Unfortunately POV-Ray is not such a renderer. (On the plus side you
> get non-grainy results which are often quite good pretty fast in most
> cases.)
>
> --
>                                                           - Warp


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