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

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Last Edited: Mon, May 22, 1995

AFV