QOpenGL draw in to separate QOpenGLFramebufferObject - wrong buffer draw in ?

[Dariusz]

Hey

I'm trying to do some selection processing for which I would like to draw my current context in to another buffer. However for some reason it still gets drawn in my main QOpenglWidget.

Here is the code that runs in a function - not paint related function.

makeCurrent();
        QOpenGLFramebufferObjectFormat fboFormat;
        fboFormat.setSamples(0);
        fboFormat.setAttachment(QOpenGLFramebufferObject::Depth);
        QOpenGLFramebufferObject fbo(size(), fboFormat);
        fbo.bind();
        QOpenGLPaintDevice deviceX(size()); // do I need it here if I just draw geometries and do no paiting?
        QPainter painterX; // do I need it here if I just draw geometries and do no paiting?
        painterX.begin(&deviceX); // do I need it here if I just draw geometries and do no paiting?
        //glEnable(GL_DEPTH_TEST);
        glClearColor(1.0f, 0.0f, 1.0f, 1.0f);
        mScene->drawScene(viewProj, false);
        painterX.end();
        fbo.release();
        auto img = fbo.toImage();
        label->setPixmap(QPixmap::fromImage(imt));
        label->show(); /// used for debug
        QOpenGLFramebufferObject::bindDefault(); /// rebing back old proper widget FBO ?
        doneCurrent();

When I run this set of commands, my main window changes but it should... not?

Any help would be great.

TIA