I am fairly new to OpenGL.

What I am doing is rendering surfaces defined by splines using NURBS. Now though it would be ideal to be able to get the coordinates of each vertex that was generated for the surface and its principle direction.

How do I go about doing this?

[This message has been edited by jankri (edited 06-22-2001).]

Sorry about my… unknowledge . I’m starting with OpenGL. Well, what is NURBS?

Thank you,


NURBS is basically an openGL interface that allows you to create surfaces defined by Non-Uniform B-Splines.