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Why is Scene3D so slow?

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  • A Offline
    A Offline
    Andreas E.
    wrote on last edited by
    #1

    Hi,

    I am trying to integrate Scene3D in a QML app but especially when compiled for Android it is incredibly slow. On a modern device I get like 3 fps even for a simple triangle. This is also happening in the Qt Scene3D example. If the same scene in rendered in a pure Qt3D app, it is running smoothly. What is the reason for this difference? Is there a way to get Scene3D content to run with regular performance?
    I have tested this with Qt 5.9.2 and 5.10 beta with the same result.

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    • A Offline
      A Offline
      Andreas E.
      wrote on last edited by
      #2

      Apparently the following property should be set in Scene3D:

      multisample: false
      

      It does not even exist in the documentation, so I can only guess what it does, but it solves the FPS issue for me.

      KarwanK 1 Reply Last reply
      3
      • A Andreas E.

        Apparently the following property should be set in Scene3D:

        multisample: false
        

        It does not even exist in the documentation, so I can only guess what it does, but it solves the FPS issue for me.

        KarwanK Offline
        KarwanK Offline
        Karwan
        wrote on last edited by
        #3

        @Andreas-E. Man You Saved Ma Project , Thanks !

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