GLCOLORMASK - Online Linux Manual PageSection : 3G

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NAME"glColorMask − enable and disable writing of frame buffer color components

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C SPECIFICATIONvoid glColorMask( GLboolean red, GLboolean green, GLboolean blue, GLboolean alpha )

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PARAMETERSred, 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.

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DESCRIPTION­glColorMask 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.

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ERRORS­GL_INVALID_OPERATION is generated if ­glColorMask is executed between the execution of ­glBegin and the corresponding execution of ­glEnd.

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ASSOCIATED GETS­glGet with argument ­GL_COLOR_WRITEMASK
­glGet with argument ­GL_RGBA_MODE

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SEE ALSO­glClear(3G), ­glColor(3G), ­glColorPointer(3G), ­glDepthMask(3G), ­glIndex(3G), ­glIndexPointer(3G), ­glIndexMask(3G), ­glStencilMask(3G) 0

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