glClearIndex(3G)

NAME
     glClearIndex - specify the clear value for the color index buffers


C SPECIFICATION
     void glClearIndex( GLfloat c )


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
                                                     m
     integer part of this value is then masked with 2 -1, where m is the
     number 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