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385c43e7ea
This patch improves performance of OpenGl_BVHClipPrimitiveSet. In particular, on the attached test case for 90 000 spheres the results are the following: 1) Master: vdisplay - 55 sec, 5 FPS, 1.4 GB memory, vclear - 180 sec. 2) Branch: vdisplay - 1.3 sec, 5 FPS, 1.4 GB memory, vclear - 90 sec. So, the patch improves vdisplay in ~40 times, and vclear in ~2 times without extra memory and with no impact on rendering performance. However, the vclear time is still significant. According to profile results, it is due to Graphic3d_Structure::DisconnectAll method. Test case for issue CR26199 Fix invalid warnings in 'vdefaults' command.