POV-Ray : Newsgroups : povray.general : 3dnoise: help me understand. : Re: 3dnoise: help me understand. Server Time
11 Aug 2024 01:16:17 EDT (-0400)
  Re: 3dnoise: help me understand.  
From: Greg M  Johnson
Date: 5 Oct 1999 21:39:48
Message: <37faa864@news.povray.org>
SPHERE!

"Jerome M. BERGER" wrote:

> "Greg M. Johnson" wrote:
> >
> > noise3d (x*f, y*f, z*f)*(R-sqrt(x^2+y^2+z^2))
> >
> > Nope.  This is a solid sphere.
> > I've used R=500 and a dozen orders of magnitude for f.
> >
> > I've had a little luck with adding an "*f" term to the right side.  But this
> > is not the concept, although intuitively the math must be VERY CLOSE....
> >
>         What about noise3d(...)-sqrt(...)/R ?
>
>                 Jerome
>
> --
> *******************************

> * they'll tell you what can't * mailto:ber### [at] inamecom
> * be done and why...          * http://www.enst.fr/~jberger
> * Then do it.                 *
> *******************************


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