centos man page for glflush

GLFLUSH(3G)							   OpenGL Manual						       GLFLUSH(3G)

NAME
       glFlush - force execution of GL commands in finite time

C SPECIFICATION
       void glFlush(void);

DESCRIPTION
       Different GL implementations buffer commands in several different locations, including network buffers and the graphics accelerator itself.
       glFlush empties all of these buffers, causing all issued commands to be executed as quickly as they are accepted by the actual rendering
       engine. Though this execution may not be completed in any particular time period, it does complete in finite time.

       Because any GL program might be executed over a network, or on an accelerator that buffers commands, all programs should call glFlush
       whenever they count on having all of their previously issued commands completed. For example, call glFlush before waiting for user input
       that depends on the generated image.

NOTES
       glFlush can return at any time. It does not wait until the execution of all previously issued GL commands is complete.

SEE ALSO
       glFinish()

COPYRIGHT
       Copyright (C) 1991-2006 Silicon Graphics, Inc. This document is licensed under the SGI Free Software B License. For details, see
       http://oss.sgi.com/projects/FreeB/.

AUTHORS
       opengl.org

opengl.org							    06/10/2014							       GLFLUSH(3G)