main.cpp 范例文件

hellogles3/main.cpp
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#include <QGuiApplication> #include <QSurfaceFormat> #include <QOpenGLContext> #include "glwindow.h" // This example demonstrates easy, cross-platform usage of OpenGL ES 3.0 functions via // QOpenGLExtraFunctions in an application that works identically on desktop platforms // with OpenGL 3.3 and mobile/embedded devices with OpenGL ES 3.0. // The code is always the same, with the exception of two places: (1) the OpenGL context // creation has to have a sufficiently high version number for the features that are in // use, and (2) the shader code's version directive is different. int main(int argc, char *argv[]) { QGuiApplication app(argc, argv); QSurfaceFormat fmt; fmt.setDepthBufferSize(24); // Request OpenGL 3.3 core or OpenGL ES 3.0. if (QOpenGLContext::openGLModuleType() == QOpenGLContext::LibGL) { qDebug("Requesting 3.3 core context"); fmt.setVersion(3, 3); fmt.setProfile(QSurfaceFormat::CoreProfile); } else { qDebug("Requesting 3.0 context"); fmt.setVersion(3, 0); } QSurfaceFormat::setDefaultFormat(fmt); GLWindow glWindow; glWindow.showMaximized(); return app.exec(); }