Hi Robert,

The initialisation of glu low level tessellator is done in 
osgUtil::Tessellator::beginTessellation()
This function is not virtual, preventing any customization of the 
tesselation.
In particular, there in an option in glu tesselator that force the 
generated primitives to be triangles and that I'd like to use 
(GLU_TESS_EDGE_FLAG).

Thanks,

        Luc
 




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