set the current color index
Deprecation Notice
Note that this function has been marked deprecated in the OpenGL 3.0 specification.
You should not be using this function in new code, though it will likely be supported
by most implementations via the GL_ARB_compatibility extension.
For more information on OpenGL 3.x deprecations, see the
deprecations page.
Parameters
- c
-
Specifies a pointer to a one-element array that contains the new value for the current color index.
Description
glIndex
updates the current (single-valued) color index.
It takes one argument, the new value for the current color index.
The current index is stored as a floating-point value.
Integer values are converted directly to floating-point values,
with no special mapping.
The initial value is 1.
Index values outside the representable range of the color index buffer
are not clamped.
However,
before an index is dithered (if enabled) and written to the frame buffer,
it is converted to fixed-point format.
Any bits in the integer portion of the resulting fixed-point value
that do not correspond to bits in the frame buffer are masked out.
Notes
glIndexub
and
glIndexubv
are available only if the GL version is
1.1 or greater.
Associated Gets
glGet
with argument
GL_CURRENT_INDEX
See Also
Copyright
Copyright
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/
.