[PyOpenGL-Users] glu nurbs problem

[Raymond M. <cfd...@gm...>]

Hello,
     I'm attempting to use the GLU nurbs functions to display trimmed nurbs,
but have run into some problems.  The first few surfaces I draw display just
fine, but eventually, a GL_STACK_OVERFLOW exception is raised when
gluEndSurface is called.  It doesn't seem to depend on the surface itself.
I get the error whether I display a short list of surfaces many times (e.g.
rotating, etc) or a long list once.  Eventually the stack overflow occurs.
I think the problem is associated with trimming, because if I draw the
surfaces without trimming, the error does not occur.    I'm running Ubuntu
Linux 9.04 (Mesa 7.6 libGLU), Nvidia drivers/core OpenGL, and pyopengl
3.0.0.  I've duplicated the problem on an RHEL 5.4 installation.

Thanks!