glclampcolor(3g) [centos man page]

GLCLAMPCOLOR(3G)						   OpenGL Manual						  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/.

AUTHORS

       opengl.org

opengl.org							    06/10/2014							  GLCLAMPCOLOR(3G)

GLRENDERBUFFERSTORAG(3G)					   OpenGL Manual					  GLRENDERBUFFERSTORAG(3G)

NAME

       glRenderbufferStorage - establish data storage, format and dimensions of a renderbuffer object's image

C SPECIFICATION

       void glRenderbufferStorage(GLenum target, GLenum internalformat, GLsizei width, GLsizei height);

PARAMETERS

       target
	   Specifies a binding to which the target of the allocation and must be GL_RENDERBUFFER.

       internalformat
	   Specifies the internal format to use for the renderbuffer object's image.

       width
	   Specifies the width of the renderbuffer, in pixels.

       height
	   Specifies the height of the renderbuffer, in pixels.

DESCRIPTION

       glRenderbufferStorage is equivalent to calling glRenderbufferStorageMultisample() with the samples set to zero.

       The target of the operation, specified by target must be GL_RENDERBUFFER.  internalformat specifies the internal format to be used for the
       renderbuffer object's storage and must be a color-renderable, depth-renderable, or stencil-renderable format.  width and height are the
       dimensions, in pixels, of the renderbuffer. Both width and height must be less than or equal to the value of GL_MAX_RENDERBUFFER_SIZE.

       Upon success, glRenderbufferStorage deletes any existing data store for the renderbuffer image and the contents of the data store after
       calling glRenderbufferStorage are undefined.

ERRORS

       GL_INVALID_ENUM is generated if target is not GL_RENDERBUFFER.

       GL_INVALID_VALUE is generated if either of width or height is negative, or greater than the value of GL_MAX_RENDERBUFFER_SIZE.

       GL_INVALID_ENUM is generated if internalformat is not a color-renderable, depth-renderable, or stencil-renderable format.

       GL_OUT_OF_MEMORY is generated if the GL is unable to create a data store of the requested size.

SEE ALSO

       glGenRenderbuffers(), glBindRenderbuffer(), glRenderbufferStorageMultisample(), glFramebufferRenderbuffer(), glDeleteRenderbuffers()

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/.

AUTHORS

       opengl.org

opengl.org							    06/10/2014						  GLRENDERBUFFERSTORAG(3G)