[Qt-interest] Please help design a Qt framework for OpenGL

[Joe Liu]

Hi,

I know it's quite convenient to use QGLWidget to write your OpenGL app
within Qt;

However, my issue is to make a framework to do more control on FPS of OpenGL
Rendering by, maybe, utilizing QEventLoop;

We might use the following framework on plain Win32 APIs in an OpenGL app:
-----------------
int main()
{
    //init Window and OpenGL

    Messageloop
    {
       * if (PeekMessage(&msg,NULL,0,0,PM_REMOVE))
        {
            TranslateMessage(&msg);
            DispatchMessage(&msg);
        }
        else
        {
            // I can query system time to help control the FPS
            sysTime = timeGetTIme();
            if( sysTime - lastTime > 30 )
            {
                DrawGLScene();
                lastTime = sysTime;
            }
        }*
    }
}
-----------------

I think in Qt, maybe I need to use QEventLoop to control the message by
myself;
But I dont find useful docs or samples about the usage of QEventLoop, or
about controlling FPS;

Do you have any suggestions? Thanks a lot;

Cheers,


Joe
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