2010-2013
Khronos Group
glClampColor
3G

# glClampColor

specify whether data read via glReadPixels should be clamped

## C Specification

                    void glClampColor
                    GLenum target
                    GLenum clamp

## Parameters

`target`

  Target for color clamping. `target` must be `GL_CLAMP_READ_COLOR`.

`clamp`

  Specifies whether to apply color clamping. `clamp` must be `GL_TRUE` or `GL_FALSE`.

## Description

`glClampColor` controls color clamping that is performed during glReadPixels. `target` must be `GL_CLAMP_READ_COLOR`. If `clamp` is `GL_TRUE`, read color clamping is enabled; if `clamp` is `GL_FALSE`, read color clamping is disabled. If `clamp` is `GL_FIXED_ONLY`, read color clamping is enabled only if the selected read buffer has fixed point components and disabled otherwise.

## Errors

`GL_INVALID_ENUM` is generated if `target` is not `GL_CLAMP_READ_COLOR`.

`GL_INVALID_ENUM` is generated if `clamp` is not `GL_TRUE` or `GL_FALSE`.

## Associated Gets

glGet with argument `GL_CLAMP_READ_COLOR`.

## Copyright

Copyright 2010-2013 Khronos Group. This material may be distributed subject to the terms and conditions set forth in the Open Publication License, v 1.0, 8 June 1999. http://opencontent.org/openpub/.