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 © 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