glClearIndex

TriggerTek Logo
abcdefghijklmnopqrstuvwxyz_
GLCLEARINDEX(3G)					     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 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(3G)



							     GLCLEARINDEX(3G)