enable and disable writing of frame buffer color components
Signature
Parameters
| Variables | Description |
|---|---|
| buf |
For
glColorMaski
, specifies the index of the
draw buffer whose color mask to set.
|
| red, green, blue, alpha |
Specify whether red, green, blue, and alpha are to be written
into the frame buffer.
The initial values are all
GL_TRUE
,
indicating that the color components are written.
|
Description
glColorMask
and
glColorMaski
specify whether the individual color components in the frame buffer
can or cannot be written.
glColorMaski
sets the mask for a specific draw buffer, whereas
glColorMask
sets the mask for all draw buffers.
If
red
is
GL_FALSE
,
for example,
no change is made to the red component of any pixel in any of the
color buffers,
regardless of the drawing operation attempted.
Changes to individual bits of components cannot be controlled.
Rather,
changes are either enabled or disabled for entire color components.
Associated Gets
glGet
with argument
GL_COLOR_WRITEMASK
See Also
Copyright
Copyright
1991-2006
Silicon Graphics, Inc.
Copyright
2010-2011 Khronos Group.
This document is licensed under the SGI
Free Software B License. For details, see
http://oss.sgi.com/projects/FreeB/
.
Sample Code References
The following code samples have been found which appear to reference the functions described here. Take care that the code may be old, broken or not even use PyOpenGL.
glColorMask