glFinish(3G)

NAME
     glFinish - block until all GL execution is complete


C SPECIFICATION
     void glFinish( void )


DESCRIPTION
     glFinish does not return until the effects of all previously called GL
     commands are complete.  Such effects include all changes to GL state, all
     changes to connection state, and all changes to the frame buffer
     contents.

     Such effects also include asynchronous GL commands, if the SGIX_async
     extension is implemented.

NOTES
     glFinish requires a round trip to the server.

ERRORS
     GL_INVALID_OPERATION is generated if glFinish is executed between the
     execution of glBegin and the corresponding execution of glEnd.


MACHINE DEPENDENCIES
     The SGIX_async and SGIX_async_pixel extensions are implemented only on
     Octane2 VPro systems.


SEE ALSO
     glFlush, glXWaitGL, glXWaitX, glFinishAsyncSGIX