1GLCOLORMASK(3G)                  OpenGL Manual                 GLCOLORMASK(3G)
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NAME

6       glColorMask - enable and disable writing of frame buffer color
7       components
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C SPECIFICATION

10       void glColorMask(GLboolean red, GLboolean green, GLboolean blue,
11                        GLboolean alpha);
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PARAMETERS

14       red, green, blue, alpha
15           Specify whether red, green, blue, and alpha can or cannot be
16           written into the frame buffer. The initial values are all GL_TRUE,
17           indicating that the color components can be written.
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DESCRIPTION

20       glColorMask specifies whether the individual color components in the
21       frame buffer can or cannot be written. If red is GL_FALSE, for example,
22       no change is made to the red component of any pixel in any of the color
23       buffers, regardless of the drawing operation attempted.
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25       Changes to individual bits of components cannot be controlled. Rather,
26       changes are either enabled or disabled for entire color components.
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ERRORS

29       GL_INVALID_OPERATION is generated if glColorMask is executed between
30       the execution of glBegin() and the corresponding execution of glEnd().
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ASSOCIATED GETS

33       glGet() with argument GL_COLOR_WRITEMASK
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35       glGet() with argument GL_RGBA_MODE
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SEE ALSO

38       glClear(), glColor(), glColorPointer(), glDepthMask(), glIndex(),
39       glIndexPointer(), glIndexMask(), glStencilMask()
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42       Copyright © 1991-2006 Silicon Graphics, Inc. This document is licensed
43       under the SGI Free Software B License. For details, see
44       http://oss.sgi.com/projects/FreeB/.
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AUTHORS

47       opengl.org
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51opengl.org                        07/13/2018                   GLCOLORMASK(3G)
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