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    • UNSOLVED How to properly trigger paintGL function ?
      General and Desktop • qpainter qopenglwidget qtime qpaint fps • • Dariusz  

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      Ok solved It appears that a GLOBAL surface setInterval overrides the setIntervals I did on my glWidget. Kinda weird that the global one overrides local one if local one was specified, is this a bug ? format.setSwapInterval(0); QSurfaceFormat::setDefaultFormat(format); overrides on widget > QSurfaceFormat format; format.setSwapInterval(0); setFormat(format);
    • UNSOLVED Is Canvas3D.fps equal to the entire windows's FPS?
      QML and Qt Quick • fps framerate diagnostics • • Stefan Monov76  

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    • Render more than 60 fps
      Mobile and Embedded • opengl qpainter raspberry pi fps • • kDohmen  

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    • Limit number of paintEvents per second
      General and Desktop • update fps painteevent limit • • eduardomezencio  

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      @alex_malyu Well, it actually not. At least in this case (I don't know if this depends on your operating system, or on the type of widget or something like that) If I comment my update() call, paintEvent is never called, no matter how much I move the mouse over it.
    • 75Hz vsync, only shows 60 FPS
      Mobile and Embedded • imx6 vsync fps max fps • • Satiriasis  

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      It depends if it's a Qt Quick application or not. If you are using widgets or doing your own custom OpenGL rendering then there will be no problem. The issue with Qt Quick is that it has its own animation system which gets driven by the default 16.66 ms on platforms where it fails to query the real refresh rate from the system. Run with QSG_INFO=1 to verify the actual value that is in use. (NB Qt 5.5 has some improvements in this area - https://bugreports.qt.io/browse/QTBUG-44971 - so it is now able to retrive the correct refresh rate on embedded platforms too)