POV-Ray : Newsgroups : povray.unofficial.patches : Spiral pattern with uniform angular density : Re: Spiral pattern with uniform angular density Server Time
3 Sep 2024 02:14:35 EDT (-0400)
  Re: Spiral pattern with uniform angular density  
From: Nathan Kopp
Date: 24 Jul 1999 12:23:39
Message: <3799E8B3.849803AF@Kopp.com>
Yes, it is for the jitter function.  You can start minphi at -pi if you
don't want any jitter.

-Nathan

Ken wrote:
> 
> Nieminen Mika wrote:
> >
> > Ken <tyl### [at] pacbellnet> wrote:
> > : What is the purpose of using rand in this declare ?
> >
> > : ---> #declare minphi= -pi + dphi*rand(R)*.5;
> >
> >   It has no purpose. I didn't know what to put there (1? 0? 0.5? something
> > else?) so I just replicated it from the C code.
> >   I tried substituting it with '1', but saw no difference.
> >   I think Nathan can answer to this question.
> 
> After thinking about it it is probably for his jitter function... Nathan ?
> 
> --
> Ken Tyler
> 
> mailto://tylereng@pacbell.net
> http://home.pacbell.net/tylereng/links.htm


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