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.
VERSION SUPPORT¶
|
OpenGL Version |
|
|
|
|
|
|
|
|
|
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|
Function / Feature Name |
2.0 |
2.1 |
3.0 |
3.1 |
3.2 |
3.3 |
4.0 |
4.1 |
4.2 |
4.3 |
4.4 |
4.5 |
glFlush |
✔ |
✔ |
✔ |
✔ |
✔ |
✔ |
✔ |
✔ |
✔ |
✔ |
✔ |
✔ |
SEE ALSO¶
glFinish()
COPYRIGHT¶
Copyright © 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/.
COPYRIGHT¶
Copyright © 1991-2006 Silicon Graphics, Inc.
Copyright © 2010-2014 Khronos Group