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In article <39981ff8@news.povray.org>, "Zeger Knaepen"
<zeg### [at] yahoo com> wrote:
> What about an isosurface representing a mobius-ring?
Make one. :-)
The only way you can do it with an isosurface would either give the
strip thickness, so it would have an internal side and an external side,
or leave a discontinuity where the normal flips.
It should be possible with the parametric shape, in which case I think
there will still be a discontinuity at the point the beginning and end
meet. That, or it will always show the "outside" texture. I don't know
how the parametric calculates normals.
--
Christopher James Huff - Personal e-mail: chr### [at] mac com
TAG(Technical Assistance Group) e-mail: chr### [at] tag povray org
Personal Web page: http://homepage.mac.com/chrishuff/
TAG Web page: http://tag.povray.org/
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