GLFLUSH - Online Linux Manual PageSection : 3G
Updated : 01/20/2022
Source : [FIXME: source]
Note : [FIXME: manual]

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NAMEglFlush − force execution of GL commands in finite time

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C SPECIFICATIONvoid glFlush(void);

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DESCRIPTIONDifferent 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​.

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

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VERSION SUPPORT OpenGL Version Function / Feature Name 2​.0 none;'>none;'>none;'>none;'>none;'>none;'>none;'>none;'>none;'>none;'>none;'>none;'>none;'> 2​.1 3​.0 3​.1 3​.2 3​.3 4​.0 4​.1 4​.2 4​.3 4​.4 4​.5 glFlush ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔

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SEE ALSOglFinish()

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COPYRIGHTCopyright © 1991−2006 Silicon Graphics, Inc​. Copyright © 2010−2014 Khronos Group​. This document is licensed under the SGI Free Software B License​. For details, see http://oss​.sgi​.com/projects/FreeB/​.

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COPYRIGHT
Copyright © 1991-2006 Silicon Graphics, Inc.
Copyright © 2010-2014 Khronos Group
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