GLCLEARINDEX(3G) OpenGL Manual 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 2 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()
COPYRIGHT
Copyright (C) 1991-2006 Silicon Graphics, Inc. This document is licensed under the SGI Free Software B License. For details, see
http://oss.sgi.com/projects/FreeB/.
AUTHORS
opengl.org
opengl.org 06/10/2014 GLCLEARINDEX(3G)
