"Bald Eagle" <cre### [at] netscapenet> writes:

> Because it's a giant mess.  You can do it, and it will be a bit slow,
> but here's a link for you:
>
> http://news.povray.org/web.5ebedadaa032ea3dfb0b41570%40news.povray.org

Thanks, but my goal was to get an arbitrary POV-Ray object—like a text
object consisting of a single theta—into an isosurface, so it could then
be transformed non-linearly at will.  Of course, that’d require a
generic way to make up a smooth transition, with a finite gradient, from
the outside to the inside, to replace the ‘object’ pattern’s jump from 0
to 1 at the boundary.

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