Silicon Graphics

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(-) OpenGL Programming Guide
(-) Appendix DThe OpenGL Extension to the X Window System
(-) Controlling Rendering

Off-Screen Rendering

To render off-screen, first create an X Pixmap and then pass this as an argument to glXCreateGLXPixmap(). Once rendering is completed, you can destroy the association between the X and GLX Pixmaps with glXDestroyGLXPixmap(). (Off-screen rendering isn't guaranteed to be supported for direct renderers.)

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OpenGL Programming Guide

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