glClampColor - specify whether data read via glReadPixels() should be
void glClampColor(GLenum target,
Target for color clamping. target must be
Specifies whether to apply color clamping. clamp
must be GL_TRUE or GL_FALSE.
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.
GL_INVALID_ENUM is generated if target is not
GL_INVALID_ENUM is generated if clamp is not
GL_TRUE or GL_FALSE.
glGet() with argument GL_CLAMP_READ_COLOR.
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Copyright © 2010-2014 Khronos Group
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