Occlusion Culling

I turned on Occlusion Culling in CATIA, and it did not seem to improve performance (render/visualization speed). Am I missing a setting? Isn't occlusion culling used to improve perf by not rendering visually hidden frames?

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Software culling really isn't necessary anymore with modern graphics cards like the Geforce and Quadro. They automatically perform hierarchical Z-order operations and Z-buffer culling. OpenGL has had this capability for many years and has been used in games and professional applications alike.

If you're using a software OpenGL renderer (CPU only) your not likely to see any benefit from culling while your processor is taxed with so much else.

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