POV-Ray : Newsgroups : povray.advanced-users : should be normal weighted ? : Re: should be normal weighted ? Server Time
29 Jul 2024 22:31:15 EDT (-0400)
  Re: should be normal weighted ?  
From: Ron Parker
Date: 4 Dec 2000 15:40:25
Message: <slrn92o09s.ms8.ron.parker@fwi.com>
On Mon, 04 Dec 2000 12:01:51 -0800, Josh English wrote:
>I thought that I read in the docs that the length was the dot product, but
>in fact they say "The resulting vector is perpendicular to the two original
>vectors and its length is proportional to the angle between them." In my
>experiments, that distance did seem to be at its largest when the vectors
>were orthogonal.

Proportional to the sine of the angle between them.  Remind me to check the
docs when I get home.  Sine has a maximum at 90 degrees, so your experiments
were correct.

-- 
Ron Parker   http://www2.fwi.com/~parkerr/traces.html
My opinions.  Mine.  Not anyone else's.


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