glClearIndex(3G)	       OpenGL Reference		      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 default value is zero.


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 2m-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
























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