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<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<!DOCTYPE html><html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>glInvalidateFramebuffer - OpenGL 4 Reference Pages</title>
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<header/>
<div class="refentry" id="glInvalidateFramebuffer">
<div class="titlepage"/>
<div class="refnamediv">
<h2>Name</h2>
<p>glInvalidateFramebuffer, glInvalidateNamedFramebufferData — invalidate the content of some or all of a framebuffer's attachments</p>
</div>
<div class="refsynopsisdiv">
<h2>C Specification</h2>
<div class="funcsynopsis">
<table style="border: 0; cellspacing: 0; cellpadding: 0;" class="funcprototype-table">
<tr>
<td>
<code class="funcdef">void <strong class="fsfunc">glInvalidateFramebuffer</strong>(</code>
</td>
<td>GLenum <var class="pdparam">target</var>, </td>
</tr>
<tr>
<td> </td>
<td>GLsizei <var class="pdparam">numAttachments</var>, </td>
</tr>
<tr>
<td> </td>
<td>const GLenum * <var class="pdparam">attachments</var><code>)</code>;</td>
</tr>
</table>
<div class="funcprototype-spacer"> </div>
<table style="border: 0; cellspacing: 0; cellpadding: 0;" class="funcprototype-table">
<tr>
<td>
<code class="funcdef">void <strong class="fsfunc">glInvalidateNamedFramebufferData</strong>(</code>
</td>
<td>GLuint <var class="pdparam">framebuffer</var>, </td>
</tr>
<tr>
<td> </td>
<td>GLsizei <var class="pdparam">numAttachments</var>, </td>
</tr>
<tr>
<td> </td>
<td>const GLenum *<var class="pdparam">attachments</var><code>)</code>;</td>
</tr>
</table>
<div class="funcprototype-spacer"> </div>
</div>
</div>
<div class="refsect1" id="parameters">
<h2>Parameters</h2>
<div class="variablelist">
<dl class="variablelist">
<dt>
<span class="term">
<em class="parameter">
<code>target</code>
</em>
</span>
</dt>
<dd>
<p>
Specifies the target to which the framebuffer object is
attached for
<code class="function">glInvalidateFramebuffer</code>.
</p>
</dd>
<dt>
<span class="term">
<em class="parameter">
<code>framebuffer</code>
</em>
</span>
</dt>
<dd>
<p>
Specifies the name of the framebuffer object for
<code class="function">glInvalidateNamedFramebufferData</code>.
</p>
</dd>
<dt>
<span class="term">
<em class="parameter">
<code>numAttachments</code>
</em>
</span>
</dt>
<dd>
<p>
Specifies the number of entries in the
<em class="parameter"><code>attachments</code></em> array.
</p>
</dd>
<dt>
<span class="term">
<em class="parameter">
<code>attachments</code>
</em>
</span>
</dt>
<dd>
<p>
Specifies a pointer to an array identifying the
attachments to be invalidated.
</p>
</dd>
</dl>
</div>
</div>
<div class="refsect1" id="description">
<h2>Description</h2>
<p>
<code class="function">glInvalidateFramebuffer</code> and
<code class="function">glInvalidateNamedFramebufferData</code> invalidate
the entire contents of a specified set of attachments of a
framebuffer.
</p>
<p>
For <code class="function">glInvalidateFramebuffer</code>, the
framebuffer object is that bound to
<em class="parameter"><code>target</code></em>. <em class="parameter"><code>target</code></em>
must be <code class="constant">GL_FRAMEBUFFER</code>,
<code class="constant">GL_READ_FRAMEBUFFER</code> or
<code class="constant">GL_DRAW_FRAMEBUFFER</code>.
<code class="constant">GL_FRAMEBUFFER</code> is equivalent to
<code class="constant">GL_DRAW_FRAMEBUFFER</code>. Default framebuffers
may also be invalidated if bound to
<em class="parameter"><code>target</code></em>.
</p>
<p>
For <code class="function">glInvalidateNamedFramebufferData</code>,
<em class="parameter"><code>framebuffer</code></em> is the name of the
framebuffer object. If <em class="parameter"><code>framebuffer</code></em> is
zero, the default draw framebuffer is affected.
</p>
<p>
The set of attachments whose contents are to be invalidated are
specified in the <em class="parameter"><code>attachments</code></em> array, which
contains <em class="parameter"><code>numAttachments</code></em> elements.
</p>
<p>
If the specified framebuffer is a framebuffer object, each
element of <em class="parameter"><code>attachments</code></em> must be one of
<code class="constant">GL_DEPTH_ATTACHMENT</code>,
<code class="constant">GL_STENCIL_ATTACHMENT</code>
<code class="constant">GL_DEPTH_STENCIL_ATTACHMENT</code>, or
<code class="constant">GL_COLOR_ATTACHMENT</code><span class="emphasis"><em>i</em></span>,
where <span class="emphasis"><em>i</em></span> is between zero and the value of
<code class="constant">GL_MAX_FRAMEBUFFER_ATTACHMENTS</code> minus one.
</p>
<p>
If the specified framebuffer is a default framebuffer, each
element of <em class="parameter"><code>attachments</code></em> must be one of
<code class="constant">GL_FRONT_LEFT</code>,
<code class="constant">GL_FRONT_RIGHT</code>,
<code class="constant">GL_BACK_LEFT</code>,
<code class="constant">GL_BACK_RIGHT</code>,
<code class="constant">GL_AUX</code><span class="emphasis"><em>i</em></span>,
<code class="constant">GL_ACCUM</code>, <code class="constant">GL_COLOR</code>,
<code class="constant">GL_DEPTH</code>, or
<code class="constant">GL_STENCIL</code>. <code class="constant">GL_COLOR</code>,
is treated as <code class="constant">GL_BACK_LEFT</code> for a
double-buffered context and <code class="constant">GL_FRONT_LEFT</code>
for a single-buffered context. The other attachments identify
the corresponding specific buffer.
</p>
<p>
The entire contents of each specified attachment become
undefined after execution of
<code class="function">glInvalidateFramebuffer</code> or
<code class="function">glInvalidateNamedFramebufferData</code>.
</p>
<p>
If the framebuffer object is not complete,
<code class="function">glInvalidateFramebuffer</code> and
<code class="function">glInvalidateNamedFramebufferData</code> may be
ignored. This is not an error.
</p>
</div>
<div class="refsect1" id="errors">
<h2>Errors</h2>
<p>
<code class="constant">GL_INVALID_ENUM</code> is generated by
<code class="function">glInvalidateFramebuffer</code> if
<em class="parameter"><code>target</code></em> is not one of the accepted
framebuffer targets.
</p>
<p>
<code class="constant">GL_INVALID_OPERATION</code> is generated by
<code class="function">glInvalidateNamedFramebufferData</code> if
<em class="parameter"><code>framebuffer</code></em> is not zero or the name of an
existing framebuffer object.
</p>
<p>
<code class="constant">GL_INVALID_VALUE</code> is generated if
<em class="parameter"><code>numAttachments</code></em> is negative.
</p>
<p>
<code class="constant">GL_INVALID_ENUM</code> is generated if any element
of <em class="parameter"><code>attachments</code></em> is not one of the accepted
framebuffer attachment points, as described above.
</p>
<p>
<code class="constant">GL_INVALID_OPERATION</code> is generated if
element of <em class="parameter"><code>attachments</code></em> is
<code class="constant">GL_COLOR_ATTACHMENT</code><span class="emphasis"><em>m</em></span>
where <span class="emphasis"><em>m</em></span> is greater than or equal to the
value of <code class="constant">GL_MAX_COLOR_ATTACHMENTS</code>.
</p>
</div>
<div class="refsect1" id="associatedgets">
<h2>Associated Gets</h2>
<p>
<a class="citerefentry" href="glGet.xhtml"><span class="citerefentry"><span class="refentrytitle">glGet</span></span></a>
with argument <code class="constant">GL_MAX_COLOR_ATTACHMENTS</code>
</p>
</div>
<div class="refsect1" id="versions">
<h2>Version Support</h2>
<div class="informaltable">
<table style="border-collapse: collapse; border-top: 2px solid ; border-bottom: 2px solid ; border-left: 2px solid ; border-right: 2px solid ; ">
<colgroup>
<col style="text-align: left; "/>
<col style="text-align: center; " class="firstvers"/>
<col style="text-align: center; "/>
<col style="text-align: center; "/>
<col style="text-align: center; "/>
<col style="text-align: center; "/>
<col style="text-align: center; "/>
<col style="text-align: center; "/>
<col style="text-align: center; "/>
<col style="text-align: center; "/>
<col style="text-align: center; "/>
<col style="text-align: center; "/>
<col style="text-align: center; " class="lastvers"/>
</colgroup>
<thead>
<tr>
<th style="text-align: left; border-right: 2px solid ; ">
</th>
<th style="text-align: center; border-bottom: 2px solid ; " colspan="12">
<span class="bold"><strong>OpenGL Version</strong></span>
</th>
</tr>
<tr>
<th style="text-align: left; border-right: 2px solid ; border-bottom: 2px solid ; ">
<span class="bold"><strong>Function / Feature Name</strong></span>
</th>
<th style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">
<span class="bold"><strong>2.0</strong></span>
</th>
<th style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">
<span class="bold"><strong>2.1</strong></span>
</th>
<th style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">
<span class="bold"><strong>3.0</strong></span>
</th>
<th style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">
<span class="bold"><strong>3.1</strong></span>
</th>
<th style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">
<span class="bold"><strong>3.2</strong></span>
</th>
<th style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">
<span class="bold"><strong>3.3</strong></span>
</th>
<th style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">
<span class="bold"><strong>4.0</strong></span>
</th>
<th style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">
<span class="bold"><strong>4.1</strong></span>
</th>
<th style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">
<span class="bold"><strong>4.2</strong></span>
</th>
<th style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">
<span class="bold"><strong>4.3</strong></span>
</th>
<th style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">
<span class="bold"><strong>4.4</strong></span>
</th>
<th style="text-align: center; border-bottom: 2px solid ; ">
<span class="bold"><strong>4.5</strong></span>
</th>
</tr>
</thead>
<tbody>
<tr>
<td style="text-align: left; border-right: 2px solid ; border-bottom: 2px solid ; ">
<code class="function">glInvalidateFramebuffer</code>
</td>
<td style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">-</td>
<td style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">-</td>
<td style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">-</td>
<td style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">-</td>
<td style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">-</td>
<td style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">-</td>
<td style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">-</td>
<td style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">-</td>
<td style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">-</td>
<td style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">✔</td>
<td style="text-align: center; border-right: 2px solid ; border-bottom: 2px solid ; ">✔</td>
<td style="text-align: center; border-bottom: 2px solid ; ">✔</td>
</tr>
<tr>
<td style="text-align: left; border-right: 2px solid ; ">
<code class="function">glInvalidateNamedFramebufferData</code>
</td>
<td style="text-align: center; border-right: 2px solid ; ">-</td>
<td style="text-align: center; border-right: 2px solid ; ">-</td>
<td style="text-align: center; border-right: 2px solid ; ">-</td>
<td style="text-align: center; border-right: 2px solid ; ">-</td>
<td style="text-align: center; border-right: 2px solid ; ">-</td>
<td style="text-align: center; border-right: 2px solid ; ">-</td>
<td style="text-align: center; border-right: 2px solid ; ">-</td>
<td style="text-align: center; border-right: 2px solid ; ">-</td>
<td style="text-align: center; border-right: 2px solid ; ">-</td>
<td style="text-align: center; border-right: 2px solid ; ">-</td>
<td style="text-align: center; border-right: 2px solid ; ">-</td>
<td style="text-align: center; ">✔</td>
</tr>
</tbody>
</table>
</div>
</div>
<div class="refsect1" id="seealso">
<h2>See Also</h2>
<p>
<a class="citerefentry" href="glInvalidateTexSubImage.xhtml"><span class="citerefentry"><span class="refentrytitle">glInvalidateTexSubImage</span></span></a>,
<a class="citerefentry" href="glInvalidateTexImage.xhtml"><span class="citerefentry"><span class="refentrytitle">glInvalidateTexImage</span></span></a>,
<a class="citerefentry" href="glInvalidateBufferSubData.xhtml"><span class="citerefentry"><span class="refentrytitle">glInvalidateBufferSubData</span></span></a>,
<a class="citerefentry" href="glInvalidateBufferData.xhtml"><span class="citerefentry"><span class="refentrytitle">glInvalidateBufferData</span></span></a>,
<a class="citerefentry" href="glInvalidateSubFramebuffer.xhtml"><span class="citerefentry"><span class="refentrytitle">glInvalidateSubFramebuffer</span></span></a>.
</p>
</div>
<div class="refsect1" id="Copyright">
<h2>Copyright</h2>
<p>
Copyright <span class="trademark"/>© 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.
<a class="link" href="http://opencontent.org/openpub/" target="_top">http://opencontent.org/openpub/</a>.
</p>
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