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Table of Contents
glColorMask - enable and disable writing of frame buffer color components
void glColorMask( GLboolean red,
GLboolean green,
GLboolean blue,
GLboolean alpha )
- red, green, blue, alpha
- Specify whether red, green, blue, and
alpha can or cannot be written into the frame buffer. The initial values
are all GL_TRUE, indicating that the color components can be written.
glColorMask
specifies whether the individual color components in the frame buffer can
or cannot be written. 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.
GL_INVALID_OPERATION is generated if glColorMask
is executed between the execution of glBegin and the corresponding execution
of glEnd.
glGet with argument GL_COLOR_WRITEMASK
glGet with argument GL_RGBA_MODE
glClear(3G)
, glColor(3G)
, glColorPointer(3G)
,
glDepthMask(3G)
, glIndex(3G)
, glIndexPointer(3G)
, glIndexMask(3G)
, glStencilMask(3G)
Table of Contents
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