In article <3a3e4b5e@news.povray.org>, Geoff Wedig 
<wed### [at] darwinepbicwruedu> wrote:

> Hmm, this is a deformation formula, so it ranges quite far (much further
> than [0..1].  I'll check to see what error it gave when I get the chance.

Ah, than this bit of code:
  value = ((value > 1.0) ? fmod(value, 1.0) : value);
will cause you some problems...it shouldn't make an error though, it 
will just make it repeat the [0, 1] range.

I'm thinking of modifying the pattern feature to allow values outside of 
[0, 1] to let these "special cases" work properly, it shouldn't be a big 
problem for older scenes. Also, I did write up a bit of code for 
allowing functions to be evaluated directly, but I never tested it. I 
posted it here or in povray.programming...maybe I will get back to work 
on it.

-- 
Christopher James Huff
Personal: chr### [at] maccom, http://homepage.mac.com/chrishuff/
TAG: chr### [at] tagpovrayorg, http://tag.povray.org/

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