Thought I'd share this with you all.
IMNSHO it's the best rendering of (part of) the Barth Decic that I've seen 
for a while.

For the record:
#declare a=1.0
#declare GM=(sqr(5)+1)/2
#declare GM4=pow(GM, 4)

function(x,y,z,a) {
 8*(pow(x, 2)-GM4*pow(y, 2))*(pow(y, 2)-GM4*pow(z, 2))*(pow(z, 2)-
 GM4*pow(x, 2))*(pow(x, 4)+pow(y, 4)+pow(z, 4)-2*pow(x, 2)*
 pow(y, 2)-2*pow(x, 2)*pow(z, 2)-2*pow(y, 2)*pow(z, 2))+(3+5*GM)
 *pow((pow(x, 2)+pow(y, 2)+pow(z, 2)-pow(a, 2)),2)*pow((pow(x, 2)
 +pow(y, 2)+pow(z, 2)-(2-GM)*pow(a, 2)),2)*pow(a, 2)
}

max_gradient 25060
contained_by{sphere {0, 1.9}}


...and the texture:
texture {
 pigment {
  aoi <3, 1, 3>
  color_map {
   [0 color rgb <1.0,0.4,0.25>]
   [0.8 color rgb <0.15,0.25,0.9>]
  }
 }
 finish {
  ambient 0
  diffuse 0.7
  specular 0.16
 }
}

Must be rendered using Megapov >=1.1

John
-- 
Run Fast
Run Free
Run Linux

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