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

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