POV-Ray : Newsgroups : povray.unofficial.patches : Are angle dependent reflections based upon actual lighting effects? : Re: Are angle dependent reflections based upon actual lighting effects? Server Time
3 Sep 2024 02:14:39 EDT (-0400)
  Re: Are angle dependent reflections based upon actual lighting effects?  
From: Jerome M  BERGER
Date: 11 Aug 1999 14:53:12
Message: <37B1C697.D650D44C@enst.fr>
Nieminen Mika wrote:
> 
> Jerome M. BERGER <jbe### [at] enstfr> wrote:
> :       Okay, there's just one problem with this model: I don't remember how it
> : accounts for materials like wood that neither reflect nor transmit any
> : light...
> 
>   Actually wood reflects light. If it didn't, you would see it as black.
> And a white object in a room with wooden walls will certainly be colored
> differently than in a room with white walls.
>   I think that the color of the wood (or any material) depends on the
> frequency of the electrons the light affects.
> 
> --
> main(i,_){for(_?--i,main(i+2,"FhhQHFIJD|FQTITFN]zRFHhhTBFHhhTBFysdB"[i]
> ):5;i&&_>1;printf("%s",_-70?_&1?"[]":" ":(_=0,"\n")),_/=2);} /*- Warp -*/

	Yes, what I meant was that you can't see any reflections on a wood
surface (unless it is higly polished and varnished). The effect that
causes wood to become visible is probably different from the one I
described since it is independant on the viewing direction...

		Jerome

-- 
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* they'll tell you what can't * mailto:ber### [at] inamecom
* be done and why...          * http://www.enst.fr/~jberger
* Then do it.                 *
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