In article <38b53386@news.povray.org>, "Bill DeWitt" 
<the### [at] earthlinknet> wrote:

> Looks great how it is but you are right, just a little bit of 
> texturing would go a long way on this. I am just baffled at how this 
> is one IsoSurface! I suspect that there is some sort of a sin()/cos() 
> thing going on, but dang if I can figger it.
> 
> There is a -lot- more to IsoSurface than I will ever be able to learn.

function {
   sqrt(
      sqr(x)
      + sqr(y-sqrt(sqr(x/2)+sqr(z/2))*1.5)
      + sqr(z)
   ) - 1
   - (sin(TH(x, y, z)*18)*0.1)//This is what makes the ridges
}

I will post the complete source in povray.text.scene-files after I clean 
it up a little.

-- 
Chris Huff
e-mail: chr### [at] yahoocom
Web page: http://chrishuff.dhs.org/

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