glClearColor

3G

glClearColor

specify clear values for the color buffers

# C Specification

                    void glClearColor
                    GLfloat red
                    GLfloat green
                    GLfloat blue
                    GLfloat alpha

## Parameters

`red`

`green`

`blue`

`alpha`

- Specify the red, green, blue, and alpha values used when the color buffers are cleared. The initial values are all 0.

## Description

`glClearColor` specifies the red, green, blue, and alpha values used by

glClear

to clear the color buffers. Values specified by `glClearColor` are clamped to the range 0 1 .

## Notes

The type of the `red`, `green`, `blue`, and `alpha` parameters was changed from GLclampf to GLfloat. This change is transparent to user code and is described in detail on the

removedTypes

page.

## Associated Gets

glGet

with argument `GL_COLOR_CLEAR_VALUE`

## See Also

glClear

,

removedTypes

## Copyright

Copyright 1991-2006 Silicon Graphics, Inc. Copyright 2010-2013 Khronos Group. This document is licensed under the SGI Free Software B License. For details, see http://oss.sgi.com/projects/FreeB/.