"Shay" <sah### [at] simcopartscom> wrote in message
news:3c975115@news.povray.org...
> Very nice. I have tried a web search to learn more about a NURBS surface,
> but have not found any good information. Do you know of any good sites
which
> discuss these surfaces?

This one is about NURB curves, the basis for the surfaces:
http://devworld.apple.com/dev/techsupport/develop/issue25/schneider.html

Gleb

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