you could use nurbs with trim curves instead of polies.

On 10/24/06, Steven T. Hatton <[EMAIL PROTECTED]> wrote:
It's fairly easy to create a plank using osg::PrimitiveSet::QUADS, but I don't
see an obvious way to put a hole in such a thing.  Is there an established
convention for doing this sort of thing?  One thing I want to do is create a
flat plank of "steel" with bolt holes in it.

As far as I know, there are no OpenGL primitive constructs that can have holes
in them.
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