Tom Melly wrote:
> 
> "Nekar Xenos" <j-p### [at] citywalkcoza> wrote in message
> news:3af65116@news.povray.org...
> >
> > > I don't think isos work with complex numbers
> >
> > So you can't do iso-mandelbrots?
> >
> 
> Well, you can't have iterations in an iso. I've wondered if, provided you
> were willing to accept a fairly low number of iterations, it would still be
> possible by nesting the iterations (which would no longer be iterations).
If you get last version of POVMan, then you can use specific shader type
iso_function for isosurface potential calculation. Shader language
supports for and while cycles, so it is quite easy write 'recursive'
iso-functions. POVMan documentation contains example of menger sponge,
where you can specify iteration depth by setting shader input parameter
and watch, how sponge disappears...

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