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25 Dec 2024 22:40:17 EST (-0500)
  3d Geometry--averaging normals (Message 1 to 2 of 2)  
From: cadman
Subject: 3d Geometry--averaging normals
Date: 14 Aug 1999 11:10:13
Message: <37b586d5@news.povray.org>
Okay, I'm not real educated with math, esp. that in 3 dimensions.
I need 1) to find the normal of 4 (or more) adjacent planes and 2) to
average them all together to get the normal argument for smooth_triangle.
'Net resources are welcome.

Thanks so much


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From: Nieminen Mika
Subject: Re: 3d Geometry--averaging normals
Date: 16 Aug 1999 03:39:52
Message: <37b7c048@news.povray.org>
cadman <NOS### [at] graffitinet> wrote:
: Okay, I'm not real educated with math, esp. that in 3 dimensions.
: I need 1) to find the normal of 4 (or more) adjacent planes and 2) to
: average them all together to get the normal argument for smooth_triangle.
: 'Net resources are welcome.

  See the help text of the following program:
http://iki.fi/warp/PovUtils/smooth.html

-- 
main(i,_){for(_?--i,main(i+2,"FhhQHFIJD|FQTITFN]zRFHhhTBFHhhTBFysdB"[i]
):5;i&&_>1;printf("%s",_-70?_&1?"[]":" ":(_=0,"\n")),_/=2);} /*- Warp -*/


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