END OF AN ERA, FRACTALFORUMS.COM IS CONTINUED ON FRACTALFORUMS.ORG

#group Coloring
// Roquen's domain mash up coordinate to invert to infinity
uniform vec3 InvertC; slider[(-5,-5,-5),(0,0,0),(5,5,5)]

// performs the active c = T(s)
vec3 domainMap(vec3 c)
{
  float s = dot(c,c);
  return c/s + InvertC;
}

if (i<ColorIterations) orbitTrap = min(orbitTrap, abs(vec4(domainMap(-z),r*r)));