"Steve" <ste### [at] zeroppsuklinuxnet> wrote in message
news:slr### [at] zeroppsorguk...
> On Wed, 18 Sep 2002 15:40:25 +0100, Tom Melly wrote:
> > photons, media and iso-surfaces... why is it always the hardest things to
get
> > right are also the ones that take longest to render?
> >
>
> I like the lines on the sea bed.
>

Thanks - iso-surface btw...

  #declare Bed_func = function(x,y,z){
    y +
    10 +
    (sin(x*5 - sin(z + f_noise3d(x,0,z))*1)/20) -
    (sin((x+z)*1 -
    sin(z + f_noise3d(x,0,z))*1)/30)
  }

#declare Bed_base =
isosurface {
  function { Bed_func(x, y, z) }
  contained_by {sphere{0,Cont_rad}}
  accuracy 0.001
  max_gradient 2
  pigment{rgb<0.9,0.9,0.6>}
}

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