glinvalidatesubframebuffer(3g) [centos man page]

GLINVALIDATESUBFRAME(3G)					   OpenGL Manual					  GLINVALIDATESUBFRAME(3G)

NAME

       glInvalidateSubFramebuffer - invalidate the content of a region of some or all of a framebuffer object's attachments

C SPECIFICATION

       void glInvalidateSubFramebuffer(GLenum target, GLsizei numAttachments, const GLenum * attachments, GLint x, GLint y, GLint width,
				       GLint height);

PARAMETERS

       target
	   The target to which the framebuffer is attached.  target must be GL_FRAMEBUFFER, GL_DRAW_FRAMEBUFFER, or GL_READ_FRAMEBUFFER.

       numAttachments
	   The number of entries in the attachments array.

       attachments
	   The address of an array identifying the attachments to be invalidated.

       x
	   The X offset of the region to be invalidated.

       y
	   The Y offset of the region to be invalidated.

       width
	   The width of the region to be invalidated.

       height
	   The height of the region to be invalidated.

DESCRIPTION

       glInvalidateSubFramebuffer invalidates the content of a region of a specified set of attachments of a framebuffer. The framebuffer whose
       content to invalidate is indicated by setting target to the target to which it is bound.  target may be GL_FRAMEBUFFER, GL_READ_FRAMEBUFFER
       or GL_DRAW_FRAMEBUFFER.	GL_FRAMEBUFFER is treated as if it were GL_DRAW_FRAMEBUFFER.

       A region within a subset of the framebuffer's attachments may be invalidated. This set of attachments are specified in an array whose
       address is given by attachments and which contains numAttachments elements. The elements of attachments must be GL_DEPTH_ATTACHMENT,
       GL_STENCIL_ATTACHMENTGL_DEPTH_STENCIL_ATTACHMENT, or GL_COLOR_ATTACHMENTi, where i is between zero and the value of
       GL_MAX_FRAMEBUFFER_ATTACHMENTS minus one. Furthermore, if the default framebuffer is bound to target, then attachments may contain
       GL_FRONT_LEFT, GL_FRONT_RIGHT, GL_BACK_LEFT, GL_BACK_RIGHT, GL_AUXi, GL_ACCUM, GL_COLOR, GL_DEPTH, or GL_STENCIL, identifying that specific
       buffer.	GL_COLOR, is treated as GL_BACK_LEFT for a double-buffered context and GL_FRONT_LEFT for a single-buffered context.

       The region of the framebuffer attachments to be invalidated is specified by x, y, width and height where x and y give the offset from the
       origin (with lower-left corner at (0, 0)) and width and height give the size. Any pixels lying outside of the window allocated to the
       current GL context, or outside of the attachments of the currently bound framebuffer object, are ignored. After glInvalidateFramebuffer is
       executed, the contents of the specified region of the specified attachments become undefined.

ERRORS

       GL_INVALID_ENUM is generated if target is not one of the accepted framebuffer target tokens.

       GL_INVALID_ENUM is generated if any element of attachments is not one of the accepted framebuffer attachment tokens.

       GL_INVALID_OPERATION is generated if element of attachments is GL_COLOR_ATTACHMENTi where i is greater than or equal to the value of
       GL_MAX_COLOR_ATTACHMENTS.

ASSOCIATED GETS

       glGet() with argument GL_MAX_COLOR_ATTACHMENTS

SEE ALSO

       glInvalidateTexSubImage(), glInvalidateTexImage(), glInvalidateBufferSubData(), glInvalidateBufferData(), glInvalidateFramebuffer().

COPYRIGHT

       Copyright (C) 2012 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						  GLINVALIDATESUBFRAME(3G)

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GLFRAMEBUFFERRENDERB(3G)					    OpenGL 3.3						  GLFRAMEBUFFERRENDERB(3G)

NAME

       glFramebufferRenderbuffer - attach a renderbuffer as a logical buffer to the currently bound framebuffer object

C SPECIFICATION

       GLsync glFramebufferRenderbuffer(GLenum target, GLenum attachment, GLenum renderbuffertarget, GLuint renderbuffer);

PARAMETERS

       target
	   Specifies the framebuffer target.  target must be GL_DRAW_FRAMEBUFFER, GL_READ_FRAMEBUFFER, or GL_FRAMEBUFFER.  GL_FRAMEBUFFER is
	   equivalent to GL_DRAW_FRAMEBUFFER.

       attachment
	   Specifies the attachment point of the framebuffer.

       renderbuffertarget
	   Specifies the renderbuffer target and must be GL_RENDERBUFFER.

       renderbuffer
	   Specifies the name of an existing renderbuffer object of type renderbuffertarget to attach.

DESCRIPTION

       glFramebufferRenderbuffer attaches a renderbuffer as one of the logical buffers of the currently bound framebuffer object.  renderbuffer is
       the name of the renderbuffer object to attach and must be either zero, or the name of an existing renderbuffer object of type
       renderbuffertarget. If renderbuffer is not zero and if glFramebufferRenderbuffer is successful, then the renderbuffer name renderbuffer
       will be used as the logical buffer identified by attachment of the framebuffer currently bound to target.

       The value of GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE for the specified attachment point is set to GL_RENDERBUFFER and the value of
       GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME is set to renderbuffer. All other state values of the attachment point specified by attachment are
       set to their default values. No change is made to the state of the renderbuuffer object and any previous attachment to the attachment
       logical buffer of the framebuffer target is broken.

       Calling glFramebufferRenderbuffer with the renderbuffer name zero will detach the image, if any, identified by attachment, in the
       framebuffer currently bound to target. All state values of the attachment point specified by attachment in the object bound to target are
       set to their default values.

       Setting attachment to the value GL_DEPTH_STENCIL_ATTACHMENT is a special case causing both the depth and stencil attachments of the
       framebuffer object to be set to renderbuffer, which should have the base internal format GL_DEPTH_STENCIL.

ERRORS

       GL_INVALID_ENUM is generated if target is not one of the accepted tokens.

       GL_INVALID_ENUM is generated if renderbuffertarget is not GL_RENDERBUFFER.

       GL_INVALID_OPERATION is generated if zero is bound to target.

SEE ALSO

       glGenFramebuffers(), glBindFramebuffer(), glGenRenderbuffers(), glFramebufferTexture(), glFramebufferTexture1D(), glFramebufferTexture2D(),
       glFramebufferTexture3D()

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						  GLFRAMEBUFFERRENDERB(3G)

Linux and UNIX Man Pages

glinvalidatesubframebuffer(3g) [centos man page]

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