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GLINVALIDATEFRAMEBUF(3G)		  OpenGL Manual 		 GLINVALIDATEFRAMEBUF(3G)

NAME
       glInvalidateFramebuffer - invalidate the content some or all of a framebuffer object's
       attachments

C SPECIFICATION
       void glInvalidateFramebuffer(GLenum target, GLsizei numAttachments,
				    const GLenum * attachments);

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.

DESCRIPTION
       glInvalidateFramebuffer invalidates the content 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.

       The set of attachments whose content to invalidate 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. After glInvalidateFramebuffer is executed,
       the contents 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(), glInvalidateSubFramebuffer().

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			 GLINVALIDATEFRAMEBUF(3G)
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