POV-Ray : Newsgroups : povray.binaries.images : Documenting wrinkles normal pattern bias. v3.7/v3.8. : Re: Documenting wrinkles normal pattern bias. v3.7/v3.8. Server Time
12 Jun 2021 20:32:29 EDT (-0400)
  Re: Documenting wrinkles normal pattern bias. v3.7/v3.8.  
From: Bald Eagle
Date: 5 May 2021 19:05:00
Message: <web.609323a8c711449a1f9dae3025979125@news.povray.org>
"Bald Eagle" <cre### [at] netscapenet> wrote:
> William F Pokorny <ano### [at] anonymousorg> wrote:
>
> > A thought, but I'm thinking simpler at the moment. A weighted normalized
> > vector addition to the incoming normal in the direction of the point
> > light(1).

And of course that's vastly easier to do in source, since POV-Ray functions
return scalar values not vectors.
https://wiki.povray.org/content/Reference:Function_Pattern

Maybe there's a clever way to do this in SDL using the color channels and
average {} or some other method...


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