GLCLEARINDEX() GLCLEARINDEX() NAME glClearIndex - specify the clear value for the color index buffers C SPECIFICATION void glClearIndex( GLfloat c ) delim $$ PARAMETERS c Specifies the index used when the color index buffers are cleared. The initial value is 0. DESCRIPTION glClearIndex specifies the index used by glClear to clear the color index buffers. c is not clamped. Rather, c is converted to a fixed-point value with unspecified precision to the right of the binary point. The integer part of this value is then masked with $2 sup m -1$, where $m$ is the num- ber of bits in a color index stored in the frame buffer. ERRORS GL_INVALID_OPERATION is generated if glClearIndex is executed between the execution of glBegin and the corresponding execution of glEnd. ASSOCIATED GETS glGet with argument GL_INDEX_CLEAR_VALUE glGet with argument GL_INDEX_BITS SEE ALSO glClear GLCLEARINDEX()
NAME | C SPECIFICATION | PARAMETERS | DESCRIPTION | ERRORS | ASSOCIATED GETS | SEE ALSO
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