'\" t
.\"     Title: glInvalidateFramebuffer
.\"    Author: [FIXME: author] [see http://docbook.sf.net/el/author]
.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
.\"      Date: 01/03/2018
.\"    Manual: [FIXME: manual]
.\"    Source: [FIXME: source]
.\"  Language: English
.\"
.TH "GLINVALIDATEFRAMEBUF" "3G" "01/03/2018" "[FIXME: source]" "[FIXME: manual]"
.\" -----------------------------------------------------------------
.\" * Define some portability stuff
.\" -----------------------------------------------------------------
.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.\" http://bugs.debian.org/507673
.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.ie \n(.g .ds Aq \(aq
.el       .ds Aq '
.\" -----------------------------------------------------------------
.\" * set default formatting
.\" -----------------------------------------------------------------
.\" disable hyphenation
.nh
.\" disable justification (adjust text to left margin only)
.ad l
.\" -----------------------------------------------------------------
.\" * MAIN CONTENT STARTS HERE *
.\" -----------------------------------------------------------------
.SH "NAME"
glInvalidateFramebuffer, glInvalidateNamedFramebufferData \- invalidate the content of some or all of a framebuffer\*(Aqs attachments
.SH "C SPECIFICATION"
.HP \w'void\ glInvalidateFramebuffer('u
.BI "void glInvalidateFramebuffer(GLenum\ " "target" ", GLsizei\ " "numAttachments" ", const\ GLenum\ *\ " "attachments" ");"
.HP \w'void\ glInvalidateNamedFramebufferData('u
.BI "void glInvalidateNamedFramebufferData(GLuint\ " "framebuffer" ", GLsizei\ " "numAttachments" ", const\ GLenum\ *" "attachments" ");"
.SH "PARAMETERS"
.PP
\fItarget\fR
.RS 4
Specifies the target to which the framebuffer object is attached for
\fBglInvalidateFramebuffer\fR\&.
.RE
.PP
\fIframebuffer\fR
.RS 4
Specifies the name of the framebuffer object for
\fBglInvalidateNamedFramebufferData\fR\&.
.RE
.PP
\fInumAttachments\fR
.RS 4
Specifies the number of entries in the
\fIattachments\fR
array\&.
.RE
.PP
\fIattachments\fR
.RS 4
Specifies a pointer to an array identifying the attachments to be invalidated\&.
.RE
.SH "DESCRIPTION"
.PP
\fBglInvalidateFramebuffer\fR
and
\fBglInvalidateNamedFramebufferData\fR
invalidate the entire contents of a specified set of attachments of a framebuffer\&.
.PP
For
\fBglInvalidateFramebuffer\fR, the framebuffer object is that bound to
\fItarget\fR\&.
\fItarget\fR
must be
\fBGL_FRAMEBUFFER\fR,
\fBGL_READ_FRAMEBUFFER\fR
or
\fBGL_DRAW_FRAMEBUFFER\fR\&.
\fBGL_FRAMEBUFFER\fR
is equivalent to
\fBGL_DRAW_FRAMEBUFFER\fR\&. Default framebuffers may also be invalidated if bound to
\fItarget\fR\&.
.PP
For
\fBglInvalidateNamedFramebufferData\fR,
\fIframebuffer\fR
is the name of the framebuffer object\&. If
\fIframebuffer\fR
is zero, the default draw framebuffer is affected\&.
.PP
The set of attachments whose contents are to be invalidated are specified in the
\fIattachments\fR
array, which contains
\fInumAttachments\fR
elements\&.
.PP
If the specified framebuffer is a framebuffer object, each element of
\fIattachments\fR
must be one of
\fBGL_DEPTH_ATTACHMENT\fR,
\fBGL_STENCIL_ATTACHMENT\fR
\fBGL_DEPTH_STENCIL_ATTACHMENT\fR, or
\fBGL_COLOR_ATTACHMENT\fR\fIi\fR, where
\fIi\fR
is between zero and the value of
\fBGL_MAX_FRAMEBUFFER_ATTACHMENTS\fR
minus one\&.
.PP
If the specified framebuffer is a default framebuffer, each element of
\fIattachments\fR
must be one of
\fBGL_FRONT_LEFT\fR,
\fBGL_FRONT_RIGHT\fR,
\fBGL_BACK_LEFT\fR,
\fBGL_BACK_RIGHT\fR,
\fBGL_AUX\fR\fIi\fR,
\fBGL_ACCUM\fR,
\fBGL_COLOR\fR,
\fBGL_DEPTH\fR, or
\fBGL_STENCIL\fR\&.
\fBGL_COLOR\fR, is treated as
\fBGL_BACK_LEFT\fR
for a double\-buffered context and
\fBGL_FRONT_LEFT\fR
for a single\-buffered context\&. The other attachments identify the corresponding specific buffer\&.
.PP
The entire contents of each specified attachment become undefined after execution of
\fBglInvalidateFramebuffer\fR
or
\fBglInvalidateNamedFramebufferData\fR\&.
.PP
If the framebuffer object is not complete,
\fBglInvalidateFramebuffer\fR
and
\fBglInvalidateNamedFramebufferData\fR
may be ignored\&. This is not an error\&.
.SH "ERRORS"
.PP
\fBGL_INVALID_ENUM\fR
is generated by
\fBglInvalidateFramebuffer\fR
if
\fItarget\fR
is not one of the accepted framebuffer targets\&.
.PP
\fBGL_INVALID_OPERATION\fR
is generated by
\fBglInvalidateNamedFramebufferData\fR
if
\fIframebuffer\fR
is not zero or the name of an existing framebuffer object\&.
.PP
\fBGL_INVALID_VALUE\fR
is generated if
\fInumAttachments\fR
is negative\&.
.PP
\fBGL_INVALID_ENUM\fR
is generated if any element of
\fIattachments\fR
is not one of the accepted framebuffer attachment points, as described above\&.
.PP
\fBGL_INVALID_OPERATION\fR
is generated if element of
\fIattachments\fR
is
\fBGL_COLOR_ATTACHMENT\fR\fIm\fR
where
\fIm\fR
is greater than or equal to the value of
\fBGL_MAX_COLOR_ATTACHMENTS\fR\&.
.SH "ASSOCIATED GETS"
.PP
\fBglGet\fR()
with argument
\fBGL_MAX_COLOR_ATTACHMENTS\fR
.SH "VERSION SUPPORT"
.TS
allbox tab(:);
lB cB s s s s s s s s s s s
lB cB cB cB cB cB cB cB cB cB cB cB cB.
T{

T}:T{
\fBOpenGL Version\fR
T}
T{
\fBFunction / Feature Name\fR
T}:T{
\fB2\&.0\fR
T}:T{
\fB2\&.1\fR
T}:T{
\fB3\&.0\fR
T}:T{
\fB3\&.1\fR
T}:T{
\fB3\&.2\fR
T}:T{
\fB3\&.3\fR
T}:T{
\fB4\&.0\fR
T}:T{
\fB4\&.1\fR
T}:T{
\fB4\&.2\fR
T}:T{
\fB4\&.3\fR
T}:T{
\fB4\&.4\fR
T}:T{
\fB4\&.5\fR
T}
.T&
l c c c c c c c c c c c c
l c c c c c c c c c c c c.
T{
\fBglInvalidateFramebuffer\fR
T}:T{
\-
T}:T{
\-
T}:T{
\-
T}:T{
\-
T}:T{
\-
T}:T{
\-
T}:T{
\-
T}:T{
\-
T}:T{
\-
T}:T{
✔
T}:T{
✔
T}:T{
✔
T}
T{
\fBglInvalidateNamedFramebufferData\fR
T}:T{
\-
T}:T{
\-
T}:T{
\-
T}:T{
\-
T}:T{
\-
T}:T{
\-
T}:T{
\-
T}:T{
\-
T}:T{
\-
T}:T{
\-
T}:T{
\-
T}:T{
✔
T}
.TE
.sp 1
.SH "SEE ALSO"
.PP
\fBglInvalidateTexSubImage\fR(),
\fBglInvalidateTexImage\fR(),
\fBglInvalidateBufferSubData\fR(),
\fBglInvalidateBufferData\fR(),
\fBglInvalidateSubFramebuffer\fR()\&.
.SH "COPYRIGHT"
.PP
Copyright
\(co
2014 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\&.
\m[blue]\fBhttp://opencontent\&.org/openpub/\fR\m[]\&.
.SH "COPYRIGHT"
.br
Copyright \(co 2014 Khronos Group
.br