finding the edges

[flok]

Hi,

I designed a nice 3D fractal. Now I would like to render it in povray to get shadow and lighting effects. For that it would be best to find the edges (e.g. the edge where it takes a finite number of iterations against an infinite number of iterations) of the fractal-blob so that I can connect those with e.g. triangles.
Has someone already designed an algorithm for that? For finding those edges? I was thinking of casting rays in the x/y/z directions of my fractal but then I won't "see" what is behind "hills" which is unfortunate if start to rotate the fractal.

[David Makin]

Probably the best method for generating output in polygon form is to use Buddhi's method of rendering say 2000 2D slices at 2000*2000 - see the main thread on true 3D Mandy for details.