glClearIndex.3gl




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




Introduction | Alphabetic | Specification

Last Edited: Mon, May 22, 1995

AFV