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1 | <?xml version="1.0" encoding="UTF-8"?> |
2 | <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "xhtml1-transitional.dtd"> | |
3 | <!-- saved from url=(0013)about:internet --> | |
4 | <?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 V1.69.1" /></head><body><div class="refentry" lang="en" xml:lang="en"><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" summary="Function synopsis" cellspacing="0" cellpadding="0"><tr><td><code class="funcdef">void <b class="fsfunc">glInvalidateTexImage</b>(</code></td><td>GLuint </td><td><var class="pdparam">texture</var>, </td></tr><tr><td> </td><td>GLint </td><td><var class="pdparam">level</var><code>)</code>;</td></tr></table></div></div><div class="refsect1" lang="en" xml:lang="en"><a id="parameters"></a><h2>Parameters</h2><div class="variablelist"><dl><dt><span class="term"><em class="parameter"><code>texture</code></em></span></dt><dd><p> | |
5 | The name of a texture object to invalidate. | |
6 | </p></dd><dt><span class="term"><em class="parameter"><code>level</code></em></span></dt><dd><p> | |
7 | The level of detail of the texture object to invalidate. | |
8 | </p></dd></dl></div></div><div class="refsect1" lang="en" xml:lang="en"><a id="description"></a><h2>Description</h2><p> | |
9 | <code class="function">glInvalidateTexSubImage</code> invalidates all of | |
10 | a texture image. <em class="parameter"><code>texture</code></em> and <em class="parameter"><code>level</code></em> indicated | |
11 | which texture image is being invalidated. After this command, data in the texture image has undefined | |
12 | values. | |
13 | </p><p> | |
14 | <em class="parameter"><code>level</code></em> must be greater than or equal to zero and be | |
15 | less than the base 2 logarithm of the maximum texture width, height, or depth. | |
16 | </p><p> | |
17 | 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 | |
18 | <code class="constant">GL_TEXTURE_2D_MULTISAMPLE_ARRAY</code>, level must be zero. | |
19 | </p></div><div class="refsect1" lang="en" xml:lang="en"><a id="errors"></a><h2>Errors</h2><p> | |
20 | <code class="constant">GL_INVALID_VALUE</code> is generated if <em class="parameter"><code>level</code></em> is | |
21 | less than zero or if it is greater or equal to the base 2 logarithm of the maximum texture width, height, or depth. | |
22 | </p><p> | |
23 | <code class="constant">GL_INVALID_VALUE</code> is generated if the target of <em class="parameter"><code>texture</code></em> | |
24 | 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 | |
25 | <code class="constant">GL_TEXTURE_2D_MULTISAMPLE_ARRAY</code> and <em class="parameter"><code>level</code></em> is not zero. | |
26 | </p><p> | |
27 | <code class="constant">GL_INVALID_VALUE</code> is generated if <em class="parameter"><code>texture</code></em> is not the | |
28 | name of an existing texture object. | |
29 | </p></div><div class="refsect1" lang="en" xml:lang="en"><a id="associatedgets"></a><h2>Associated Gets</h2><p> | |
30 | <a href="glGet.xml"><span class="citerefentry"><span class="refentrytitle">glGet</span></span></a> with argument <code class="constant">GL_MAX_TEXTURE_SIZE</code> | |
31 | </p></div><div class="refsect1" lang="en" xml:lang="en"><a id="seealso"></a><h2>See Also</h2><p> | |
32 | <a href="glInvalidateTexSubImage.xml"><span class="citerefentry"><span class="refentrytitle">glInvalidateTexSubImage</span></span></a>,, | |
33 | <a href="glInvalidateBufferSubData.xml"><span class="citerefentry"><span class="refentrytitle">glInvalidateBufferSubData</span></span></a>, | |
34 | <a href="glInvalidateBufferData.xml"><span class="citerefentry"><span class="refentrytitle">glInvalidateBufferData</span></span></a>, | |
35 | <a href="glInvalidateFramebuffer.xml"><span class="citerefentry"><span class="refentrytitle">glInvalidateFramebuffer</span></span></a>, | |
36 | <a href="glInvalidateSubFramebuffer.xml"><span class="citerefentry"><span class="refentrytitle">glInvalidateSubFramebuffer</span></span></a>. | |
37 | </p></div><div class="refsect1" lang="en" xml:lang="en"><a id="Copyright"></a><h2>Copyright</h2><p> | |
38 | Copyright <span class="trademark"></span>© 2012 Khronos Group. | |
39 | This material may be distributed subject to the terms and conditions set forth in | |
40 | the Open Publication License, v 1.0, 8 June 1999. | |
41 | <a href="http://opencontent.org/openpub/" target="_top">http://opencontent.org/openpub/</a>. | |
42 | </p></div></div></body></html> |