It seems these are very complex functions, so that's impressive. If they are
parametric isosurfaces, I guess the render time hits the roof? But a nice
addition to include in toturials, maybe even the Pov3.5 example files.
Together with Ingo's parametric mesh macro, these sor's could be superior to
the old sor keyword, because these will never have holes / errors when they
render.
Regards,
Hugo
