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Heavy Metal

(http://nocache-nocookies.digitalgott.com/gallery/15/4842_21_01_14_7_28_59.jpeg)

http://www.fractalforums.com/index.php?action=gallery;sa=view;id=15477

double DE(dvec3 p)
{
   double rr = 1.0;

   for (int i = 0; i < 10; i++)
   {
      AmazingBox(p, atr2.y*4.0, atr2.z*4.0, 0.5, rr);
      OctahedronIFS(p, atr2.w*2.0, vec3(1.0, 0.0, 0.0));
      if (rr>1024.0)
         break;
   }
   for (int i = 0; i < 10; i++)
   {
      AmazingBox(p, param[61].x*4.0, 2.0*param[61].y, 0.0, rr);
      AmazingSurf(p, 4.0*param[61].z, 4.0, 0.0, rr);
      if (rr>1024.0)
         break;
   }
   return 0.35*length(p.xyz) / p.w;
}