glClearIndex(3)

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 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(3G)

                                                              GLCLEARINDEX(3G)