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  1. Qt
  2. QTBUG-89015

Qt animation high GPU usage

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    • Icon: Bug Bug
    • Resolution: Out of scope
    • Icon: P3: Somewhat important P3: Somewhat important
    • None
    • 5.15.1
    • Quick: SceneGraph
    • None
    • Windows 10, msvc2019_64
    • Windows

      Hello,

      I noticed that Qt builtin animations are cause of very high GPU usage. I attached simple application reproducing the problem. Its app from the Qt Quick App template. Just Rectangle and 2 animations that are changing its opacity from 0 to 1 and from 1 to 0. 

      The application often starts with  1%-4% of GPU usage and after couple of seconds then rise to something around 20%-30%. The problem can be observed on at least 5 different computers with Windows 10.

      Regards

       

        1. gpuUsage.png
          46 kB
          Krzysztof Sommerfeld
        2. main.cpp
          0.5 kB
          Krzysztof Sommerfeld
        3. main.qml
          0.6 kB
          Krzysztof Sommerfeld
        4. qml.qrc
          0.1 kB
          Krzysztof Sommerfeld
        5. untitled3.pro
          1 kB
          Krzysztof Sommerfeld
        6. untitled3.pro.user
          59 kB
          Krzysztof Sommerfeld
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            janichol Andy Nichols
            somas Krzysztof Sommerfeld
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              Created:
              Updated:
              Resolved:

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