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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "xhtml1-transitional.dtd">
<?xml-stylesheet type="text/xsl" href="mathml.xsl"?><html xmlns="http://www.w3.org/1999/xhtml" xmlns:pref="http://www.w3.org/2002/Math/preference" pref:renderer="mathplayer-dl"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><link rel="stylesheet" type="text/css" href="opengl-man.css" /><title>glInvalidateTexImage - OpenGL 4 Reference Pages</title><meta name="generator" content="DocBook XSL Stylesheets V1.78.1" /></head><body><div class="refentry"><a id="glInvalidateTexImage"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>glInvalidateTexImage — invalidate the entirety a texture image</p></div><div class="refsynopsisdiv"><h2>C Specification</h2><div class="funcsynopsis"><table border="0" class="funcprototype-table" summary="Function synopsis" style="cellspacing: 0; cellpadding: 0;"><tr><td><code class="funcdef">void <strong class="fsfunc">glInvalidateTexImage</strong>(</code></td><td>GLuint <var class="pdparam">texture</var>, </td></tr><tr><td> </td><td>GLint <var class="pdparam">level</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer"> </div></div></div><div class="refsect1"><a id="parameters"></a><h2>Parameters</h2><div class="variablelist"><dl class="variablelist"><dt><span class="term"><em class="parameter"><code>texture</code></em></span></dt><dd><p>
The name of a texture object to invalidate.
</p></dd><dt><span class="term"><em class="parameter"><code>level</code></em></span></dt><dd><p>
The level of detail of the texture object to invalidate.
</p></dd></dl></div></div><div class="refsect1"><a id="description"></a><h2>Description</h2><p>
<code class="function">glInvalidateTexSubImage</code> invalidates all of
a texture image. <em class="parameter"><code>texture</code></em> and <em class="parameter"><code>level</code></em> indicated
which texture image is being invalidated. After this command, data in the texture image has undefined
values.
</p><p>
<em class="parameter"><code>level</code></em> must be greater than or equal to zero and be
less than the base 2 logarithm of the maximum texture width, height, or depth.
</p><p>
For textures of targets <code class="constant">GL_TEXTURE_RECTANGLE</code>, <code class="constant">GL_TEXTURE_BUFFER</code>, <code class="constant">GL_TEXTURE_2D_MULTISAMPLE</code>, or
<code class="constant">GL_TEXTURE_2D_MULTISAMPLE_ARRAY</code>, level must be zero.
</p></div><div class="refsect1"><a id="errors"></a><h2>Errors</h2><p>
<code class="constant">GL_INVALID_VALUE</code> is generated if <em class="parameter"><code>level</code></em> is
less than zero or if it is greater or equal to the base 2 logarithm of the maximum texture width, height, or depth.
</p><p>
<code class="constant">GL_INVALID_VALUE</code> is generated if the target of <em class="parameter"><code>texture</code></em>
is any of <code class="constant">GL_TEXTURE_RECTANGLE</code>, <code class="constant">GL_TEXTURE_BUFFER</code>, <code class="constant">GL_TEXTURE_2D_MULTISAMPLE</code>, or
<code class="constant">GL_TEXTURE_2D_MULTISAMPLE_ARRAY</code> and <em class="parameter"><code>level</code></em> is not zero.
</p><p>
<code class="constant">GL_INVALID_VALUE</code> is generated if <em class="parameter"><code>texture</code></em> is not the
name of an existing texture object.
</p></div><div class="refsect1"><a id="associatedgets"></a><h2>Associated Gets</h2><p>
<a class="citerefentry" href="glGet.xml"><span class="citerefentry"><span class="refentrytitle">glGet</span></span></a> with argument <code class="constant">GL_MAX_TEXTURE_SIZE</code>
</p></div><div class="refsect1"><a id="seealso"></a><h2>See Also</h2><p>
<a class="citerefentry" href="glInvalidateTexSubImage.xml"><span class="citerefentry"><span class="refentrytitle">glInvalidateTexSubImage</span></span></a>,,
<a class="citerefentry" href="glInvalidateBufferSubData.xml"><span class="citerefentry"><span class="refentrytitle">glInvalidateBufferSubData</span></span></a>,
<a class="citerefentry" href="glInvalidateBufferData.xml"><span class="citerefentry"><span class="refentrytitle">glInvalidateBufferData</span></span></a>,
<a class="citerefentry" href="glInvalidateFramebuffer.xml"><span class="citerefentry"><span class="refentrytitle">glInvalidateFramebuffer</span></span></a>,
<a class="citerefentry" href="glInvalidateSubFramebuffer.xml"><span class="citerefentry"><span class="refentrytitle">glInvalidateSubFramebuffer</span></span></a>.
</p></div><div class="refsect1"><a id="Copyright"></a><h2>Copyright</h2><p>
Copyright <span class="trademark"></span>© 2013 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="ulink" href="http://opencontent.org/openpub/" target="_top">http://opencontent.org/openpub/</a>.
</p></div></div></body></html>
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