Qt Quick 2 with OpenGL > 2.0

LORDIF

Good afternoon everybody. I faced with a problem which I can't solve myself.

I want to use Qt Quick 2.x for my program but I can't make it work with OpenGL > 2.0

I have main.qml:

@ /* imports */
Window {
...
Scene {
...
}
...
}@

In Scene I'm using OpenGL > 2.0 so my shaders aren't working.

I've tried to add this line qobject_cast<QQuickWindow*>(engine.rootObjects().first())->setFormat(format_3_3); in main.cpp but that didn't help.

@int main(int argc, char *argv[])
{
    QGuiApplication app(argc, argv);

    QSurfaceFormat format_3_3;
    format_3_3.setMajorVersion(3);
    format_3_3.setMinorVersion(3);
    format_3_3.setProfile&#40;QSurfaceFormat::CompatibilityProfile&#41;;

    qmlRegisterType<Scene>("SceneGL", 1, 0, "Scene");

    QQmlApplicationEngine engine;
    engine.load(QUrl(QStringLiteral("qrc:/main.qml")));
    qobject_cast<QQuickWindow*>(engine.rootObjects().first())->setFormat(format_3_3);

    return app.exec();
}@

My Scene class:

@class Scene : public QQuickItem
{
    ...
}@

I found a solution "here (47 minute)":http://www.youtube.com/watch?v=GYa5DLV6ADQ: but without source code I can't see full picture to use the same technique.

How can I solve this problem? Thanks for your answers.

sierdzio

Are you running this on Windows with ANGLE, by any chance?

LORDIF

Nope, MAC OS X 10.10

Torgeir

A QWindow's surface format must be set before the window is created. In Qt version including 5.3.2 you'll need to create the Window from the C++ side by using a QQuickView.

In Qt 5.4 you can call QSurfaceFormat::setDefaultFormat to set a default format that the QtQuick Window element also will use.

LORDIF

Thanks, that helped but now I faced with another problem: "problem":http://qt-project.org/forums/viewthread/49501/