<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE html> <html lang="en"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <!-- hellogles3.qdoc --> <title>Hello GLES3 Example | Qt OpenGL</title> <link rel="stylesheet" type="text/css" href="style/offline-simple.css" /> <script type="text/javascript"> document.getElementsByTagName("link").item(0).setAttribute("href", "style/offline.css"); // loading style sheet breaks anchors that were jumped to before // so force jumping to anchor again setTimeout(function() { var anchor = location.hash; // need to jump to different anchor first (e.g. none) location.hash = "#"; setTimeout(function() { location.hash = anchor; }, 0); }, 0); </script> </head> <body> <div class="header" id="qtdocheader"> <div class="main"> <div class="main-rounded"> <div class="navigationbar"> <table><tr> <td >Qt 5.12</td><td ><a href="qtopengl-index.html">Qt OpenGL</a></td><td ><a href="examples-widgets-opengl.html">OpenGL Examples from the Qt OpenGL module</a></td><td >Hello GLES3 Example</td></tr></table><table class="buildversion"><tr> <td id="buildversion" width="100%" align="right"><a href="qtopengl-index.html">Qt 5.12.6 Reference Documentation</a></td> </tr></table> </div> </div> <div class="content"> <div class="line"> <div class="content mainContent"> <div class="sidebar"><div class="sidebar-content" id="sidebar-content"></div></div> <h1 class="title">Hello GLES3 Example</h1> <span class="subtitle"></span> <!-- $$$hellogles3-brief --> <p>The Hello GLES3 example demonstrates easy, cross-platform usage of OpenGL ES 3.0 functions via <a href="../qtgui/qopenglextrafunctions.html">QOpenGLExtraFunctions</a> in an application that works identically on desktop platforms with OpenGL 3.3 and mobile/embedded devices with OpenGL ES 3.0.</p> <!-- @@@hellogles3 --> <!-- $$$hellogles3-description --> <div class="descr"> <a name="details"></a> <p>The code is always the same, with the exception of two places:</p> <ul> <li>The OpenGL context creation has to have a sufficiently high version number for the features that are in use.</li> <li>The shader code's version directive is different.</li> </ul> <p class="centerAlign"><img src="images/hellogles3-example.png" alt="" /></p><p>Files:</p> <ul> <li><a href="qtopengl-hellogles3-glwindow-cpp.html">hellogles3/glwindow.cpp</a></li> <li><a href="qtopengl-hellogles3-glwindow-h.html">hellogles3/glwindow.h</a></li> <li><a href="qtopengl-hellogles3-hellogles3-pro.html">hellogles3/hellogles3.pro</a></li> <li><a href="qtopengl-hellogles3-hellogles3-qrc.html">hellogles3/hellogles3.qrc</a></li> <li><a href="qtopengl-hellogles3-main-cpp.html">hellogles3/main.cpp</a></li> </ul> <p>Images:</p> <ul> <li><a href="images/used-in-examples/hellogles3/qtlogo.png">hellogles3/qtlogo.png</a></li> </ul> </div> <!-- @@@hellogles3 --> </div> </div> </div> </div> </div> <div class="footer"> <p> <acronym title="Copyright">©</acronym> 2019 The Qt Company Ltd. Documentation contributions included herein are the copyrights of their respective owners.<br/> The documentation provided herein is licensed under the terms of the <a href="http://www.gnu.org/licenses/fdl.html">GNU Free Documentation License version 1.3</a> as published by the Free Software Foundation.<br/> Qt and respective logos are trademarks of The Qt Company Ltd. in Finland and/or other countries worldwide. All other trademarks are property of their respective owners. </p> </div> </body> </html>