"PM 2Ring" <nomail@nomail> wrote:
> This group of stones is a single isosurface. The wet sand is a
> normal-perturbed plane. The stone textures are the standard textures
> in stones.inc.
>
> Now I just need to figure out how to perturb the stones' positions a bit
> more...

Excellent stones, I spent a while trying to get good isosurface stone shapes
for one of my IRTC entries for this round. (I didn't get as intersting
shapes as you managed would you mind posting the source for a couple so I
can see how you did it....

Here's how I created one of mine

#declare  S = function { sqrt(pow(x,2) + pow(y,2) + pow(z,2)) - 2 }

#declare Stone1 = isosurface {
  function {
S(x,y*(1.5-y/12),z)-f_wrinkles(x*0.3,y*0.5,z*0.03)*0.05-fn_scallop_ripples(x,y,z).gray*0.001-f_wrinkles(x*3,y*4,z*4)*0.
005
}
        accuracy isoAccuracy
        max_gradient 2.75
        contained_by{sphere{0,2.2}}
}

Sean

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