Страницы справочника OS X

Эта страница руководства является частью версии 5.0 Инструментов XCode

Читать страницы руководства

GLCLAMPCOLOR(3G)                                 OpenGL 3.3                                 GLCLAMPCOLOR(3G)



NAME
       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 (C) 2010 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/.



OpenGL 3.3                                       03/08/2011                                 GLCLAMPCOLOR(3G)