Vahur Krouverk wrote:

> usually u and v run from 0 to 1 (but they could take other values as
> well). Put u and v values to functions and you can calculate each point
> on surface.

Nah, usually 0 to 2pi ;)

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David Fontaine  <dav### [at] faricynet>  ICQ 55354965
My raytracing gallery:  http://davidf.faricy.net/

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