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  in‐
       dex 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 2m−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(3G)