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<?php
$static_title = 'Khronos OpenGL&reg; Registry';
include_once("../../assets/static_pages/khr_page_top.php");
?>
<p> The OpenGL Registry contains specifications of the core API and
shading language; specifications of Khronos- and vendor-approved
OpenGL extensions; header files corresponding to the specifications; and
related documentation including specifications, extensions, and headers
for the GLX, WGL, and GLU APIs. </p>
<p> The OpenGL registry is part of the <a
href="http://www.khronos.org/registry/OpenGL/"> Combined OpenGL Registry </a>
for OpenGL, OpenGL ES, and OpenGL SC, which includes the <a
href="xml/README.adoc">XML API registry</a> of reserved enumerants and
functions. </p>
<p> <b>Table of Contents</b>
<ul>
<li> <b><a href="docs/update_policy.php">Working Group Policy</a></b> for
when Specifications and extensions will be updated. </li>
<li> <b><a href="#apispecs">Current OpenGL API, Shading Language, GLX,
and Related Specifications and Reference Pages</a></b> </li>
<li> <a href="#headers">Core API and Extension Header Files</a> </li>
<li> <b>
<a href="https://www.khronos.org/files/ip-disclosures/opengl/"> IP
Disclosures</a> Potentially Affecting OpenGL Implementations
</b></li>
<li> <b> Extension Specifications </b>
<ul>
<li> <a href="#arbextspecs">OpenGL ARB Extensions Specifications</a> </li>
<li> <a href="#otherextspecs">OpenGL Vendor and EXT Extension Specifications</a>
</li>
</ul> </li>
<li> Older Material for Reference
<ul>
<li> <b><a href="#oldspecs">Older OpenGL and GLX Specifications and
Reference Pages</a></b> </li>
<li> <a href="#abi">OpenGL Application Binary Interface for Linux</a>
</li>
</ul> </li>
</ul>
<hr>
<h2> <a name="apispecs"></a>
Current OpenGL API, OpenGL Shading Language and GLX Specifications and
Reference Pages </h2>
<ul>
<li> <b> Current Specifications (OpenGL 4.6) </b>
<li> OpenGL 4.6 API Specification (May 5, 2022)
<ul>
<li> <a href="specs/gl/glspec46.core.pdf"> Core Profile Specification
</a> </li>
<li> <a href="specs/gl/glspec46.core.withchanges.pdf"> Core Profile
Specification with changes marked </a> </li>
<li> <a href="specs/gl/glspec46.compatibility.pdf"> Compatibility Profile
Specification </a> </li>
<li> <a href="specs/gl/glspec46.compatibility.withchanges.pdf">
Compatibility Profile Specification with changes marked </a>
</li>
</ul> </li>
<li> OpenGL Shading Language 4.60 Specification (August 14, 2023)
<a href="specs/gl/GLSLangSpec.4.60.html"> (HTML) </a> </li>
<a href="specs/gl/GLSLangSpec.4.60.pdf"> (PDF) </a> </li>
<li> <a href="http://www.khronos.org/registry/OpenGL-Refpages/gl4/"> OpenGL 4.5 API and
Shading Language Reference Pages </a> (not yet updated) </li>
<li> <b> OpenGL X Window System Binding (GLX 1.4) Specification </b> </li>
<li> <a href="specs/gl/glx1.4.pdf"> GLX 1.4 Specification </a> </li>
<li> <a href="https://www.khronos.org/developers/reference-cards"> OpenGL
Quick Reference Card </a> (available for different API versions). </li>
</ul>
<h2> <a name="headers"></a> API and Extension Header Files </h2>
<p> Because extensions vary from platform to platform and driver to
driver, OpenGL developers can't expect interfaces for all extensions
to be defined in the standard <tt>gl.h</tt>, <tt>glx.h</tt>, and
<tt>wgl.h</tt> header files supplied with the OS / graphics drivers.
Additional header files are provided here, including: </p>
<p> Almost all of the headers described below depend on a platform header
file common to multiple Khronos APIs called
<tt>&lt;KHR/khrplatform.h&gt;</tt>. </p>
<ul>
<li> <tt><a href="api/GL/glext.h">&lt;GL/glext.h&gt;</a></tt> - OpenGL
1.2 and above compatibility profile and extension interfaces. </li>
<li> <tt><a href="api/GL/glcorearb.h">&lt;GL/glcorearb.h&gt;</a></tt> -
OpenGL core profile and ARB extension interfaces, as described in
appendix G.2 of the OpenGL 4.3 Specification. Does not include
interfaces found only in the compatibility profile. </li>
<li> <tt><a href="api/GL/glxext.h">&lt;GL/glxext.h&gt;</a></tt> - GLX
1.3 and above API and GLX extension interfaces. </li>
<li> <tt><a href="api/GL/wglext.h">&lt;GL/wglext.h&gt;</a></tt> - WGL
extension interfaces. </li>
</ul>
<p> These headers define interfaces including enumerants; prototypes; and,
for platforms supporting dynamic runtime extension queries, such as
Linux and Microsoft Windows, function pointer typedefs. Please report
problems as <a
href="https://github.com/KhronosGroup/OpenGL-Registry/issues/">Issues</a>
in the <a href="index.php#repository">OpenGL-Registry</a> repository.
</p>
<p> <a name="headerskhr"></a> <b> Khronos Shared Platform Header
(<tt>&lt;KHR/khrplatform.h&gt;</tt>) </b> </p>
<ul>
<li> The OpenGL headers all depend on the shared
<a href="https://www.khronos.org/registry/EGL/api/KHR/khrplatform.h">
<tt>&lt;KHR/khrplatform.h&gt;</tt></a> header from the <a
href="http://www.khronos.org/registry/EGL/"> EGL Registry </a>.
This is a new dependency, introduced in
<a href="https://github.com/KhronosGroup/OpenGL-Registry/pull/183">
OpenGL-Registry pull request 183</a> for increased compatibility
between OpenGL and OpenGL ES headers. </li>
</ul>
<hr>
<!-- Older Material -->
<h2> <a name="oldspecs"></a>
Older OpenGL and GLX Specifications and Reference Pages
</h2>
<ul>
<!-- Does not link to diff/withchanges specs, yet -->
<li> <b> OpenGL 4.5 </b>
<li> <a href="specs/gl/glspec45.core.pdf"> (API Core Profile) </a> </li>
<li> <a href="specs/gl/glspec45.compatibility.pdf"> (API Compatibility Profile) </a> </li>
<li> <a href="specs/gl/GLSLangSpec.4.50.pdf"> OpenGL Shading Language
4.50 Specification </a> </li>
<li> <b> OpenGL 4.4 </b>
<li> <a href="specs/gl/glspec44.core.pdf"> (API Core Profile) </a> </li>
<li> <a href="specs/gl/glspec44.compatibility.pdf"> (API Compatibility Profile) </a> </li>
<li> <a href="specs/gl/GLSLangSpec.4.40.pdf"> OpenGL Shading Language
4.40 Specification </a> </li>
<li> <b> OpenGL 4.3 </b>
<li> <a href="specs/gl/glspec43.core.pdf"> (API Core Profile) </a> </li>
<li> <a href="specs/gl/glspec43.compatibility.pdf"> (API Compatibility Profile) </a> </li>
<li> <a href="specs/gl/GLSLangSpec.4.30.pdf"> OpenGL Shading Language
4.30 Specification </a> </li>
<li> <b> OpenGL 4.2 </b>
<li> <a href="specs/gl/glspec42.core.pdf"> (API Core Profile) </a> </li>
<li> <a href="specs/gl/glspec42.compatibility.pdf"> (API Compatibility Profile) </a> </li>
<li> <a href="specs/gl/GLSLangSpec.4.20.pdf"> OpenGL Shading Language
4.20 Specification </a> </li>
<li> <b> OpenGL 4.1 </b>
<li> <a href="specs/gl/glspec41.core.pdf"> (API Core Profile) </a> </li>
<li> <a href="specs/gl/glspec41.compatibility.pdf"> (API Compatibility Profile) </a> </li>
<li> <a href="specs/gl/GLSLangSpec.4.10.pdf"> OpenGL Shading Language 4.10
Specification </a> </li>
<li> <b> OpenGL 4.0 </b>
<li> <a href="specs/gl/glspec40.core.pdf"> (API Core Profile) </a> </li>
<li> A <a href="http://www.cutt.co.jp/book/978-4-87783-255-1.html"> Japanese
translation </a> of the API core profile specification is also
available. </li>
<li> <a href="specs/gl/glspec40.compatibility.pdf"> (API Compatibility Profile) </a> </li>
<li> <a href="specs/gl/GLSLangSpec.4.00.pdf"> OpenGL Shading Language 4.00
Specification </a> </li>
<li> <b> OpenGL 3.3 </b>
<li> <a href="specs/gl/glspec33.core.pdf"> (API Core Profile) </a> </li>
<li> <a href="specs/gl/glspec33.compatibility.pdf"> (API Compatibility Profile) </a> </li>
<li> <a href="specs/gl/GLSLangSpec.3.30.pdf"> OpenGL Shading Language
3.30 Specification </a> </li>
<li> <b> OpenGL 3.2 </b>
<li> <a href="specs/gl/glspec32.core.pdf"> (API Core Profile) </a> </li>
<li> <a href="specs/gl/glspec32.compatibility.pdf"> (API Compatibility Profile) </a> </li>
<li> <a href="specs/gl/GLSLangSpec.1.50.pdf"> OpenGL Shading Language
1.50 Specification </a> </li>
<li> <b> OpenGL 3.1 </b>
<li> <a href="specs/gl/glspec31.pdf"> (API Specification) </a> </li>
<li> <a href="specs/gl/glspec31undep.pdf">
(with GL_ARB_compatibility extension) </a> </li>
<li> <a href="specs/gl/GLSLangSpec.1.40.pdf"> OpenGL Shading Language
1.40 Specification </a> </li>
<li> <b> OpenGL 3.0 </b>
<li> <a href="specs/gl/glspec30.pdf"> (API Specification) </a> </li>
<li> <a href="specs/gl/GLSLangSpec.1.30.pdf"> OpenGL Shading Language
1.30 Specification </a> </li>
<li> <b> OpenGL 2.1 </b>
<li> <a href="specs/gl/glspec21.pdf"> (API Specification) </a> </li>
<li> <a href="specs/gl/GLSLangSpec.1.20.pdf"> OpenGL Shading Language
1.20 Specification </a> </li>
<li> <b> OpenGL 2.1 Reference Pages </b>
<li> <a href="http://www.khronos.org/registry/OpenGL-Refpages/gl2.1/"> OpenGL 2.1 Reference
Pages </a> </li>
<li> <b> OpenGL 2.0 </b>
<li> <a href="specs/gl/glspec20.pdf"> (API Specification) </a> </li>
<li> <a href="specs/gl/GLSLangSpec.1.10.pdf"> OpenGL Shading Language
1.10 Specification </a> </li>
<li> <b> OpenGL 1.x </b>
<li> <a href="specs/gl/glspec15.pdf"> OpenGL 1.5 API Specification </a>
<li> <a href="specs/gl/glspec14.pdf"> OpenGL 1.4 API Specification </a>
<li> <a href="specs/gl/glspec13.pdf"> OpenGL 1.3 API Specification </a>
<li> <a href="specs/gl/glspec121.pdf"> OpenGL 1.2.1 API Specification </a>
<li> <a href="specs/gl/glspec11.pdf"> OpenGL 1.1 API Specification </a>
<li> <a href="specs/gl/glspec10.pdf"> OpenGL 1.0 API Specification </a>
<li> <b> Older GLX Specifications </b>
<li> <a href="specs/gl/glx1.3.pdf"> GLX 1.3 Specification </a>
<li> <a href="specs/gl/glxencode1.3.pdf"> GLX 1.3 Protocol Encoding
Specification </a>
<li> <a href="specs/gl/glx1.2.ps"> GLX 1.2 Specification (PostScript format) </a>
<li> <a href="specs/gl/GLXprotocol.ps"> GLX Protocol Slides (PostScript
format; only of historical interest) </a>
<li> <b> OpenGL Utility Library (GLU) Specification </b>
<li> <a href="specs/gl/glu1.3.pdf"> GLU 1.3 Specification (November 4, 1998) </a>
</ul>
<h2> <a name="abi"></a>
OpenGL Application Binary Interface for Linux </h2>
<p> The <a href="ABI/">OpenGL Application Binary Interface for Linux</a> is
also available. <b>NOTE:</b> this document is extremely old and of no
relevance to modern Linux systems, where the ABI is de-facto defined by
the <a href="https://docs.mesa3d.org/precompiled.html">Mesa
libraries</a> as shipped by distribution vendors. </p>
<h2> <a name="arbextspecs"></a>
ARB and KHR Extensions by number</h2>
<?php include("extensions/arbext.php"); ?>
<h2> <a name="otherextspecs"></a>
Vendor and EXT Extensions by number</h2>
<?php include("extensions/glext.php"); ?>
<?php include_once("../../assets/static_pages/khr_page_bottom.php"); ?>
</body>
</html>
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