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  1. Qt
  2. QTBUG-99012

Scene rendering getting slower per QQuick3DGeometry updates

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    • Icon: Bug Bug
    • Resolution: Done
    • Icon: P3: Somewhat important P3: Somewhat important
    • 6.2.3, 6.3.0 Alpha
    • 6.2, 6.3
    • Quick: 3D
    • None
    • Linux/Wayland
    • 657a7248af7a4c56a294985a95dfee1348dd1808 (qt/qtquick3d/6.2) 5cdbbf2f2f94d6f27f30381625af40e6e0089a0e (qt/qtquick3d/dev)

      The attached example calls QQuick3DGeometry::update() by 30Hz interval
      and feed 1MB dummy vertices. The rendering performance is getting worse
      until the QQuick3DGeometry instance recreated.

      Apparently the subsets count increases indefinitely. I'll send a patch shortly.

        1. quick3d-get-fat.zip
          7 kB
        For Gerrit Dashboard: QTBUG-99012
        # Subject Branch Project Status CR V
        385147,2 Clear subsets prior to copying them from frontend geometry object dev qt/qtquick3d Status: MERGED +2 0
        385189,2 Clear subsets prior to copying them from frontend geometry object 6.2 qt/qtquick3d Status: MERGED +2 0

            qt.team.graphics.and.multimedia Qt Graphics Team
            jirauser52013 user-c858f (Inactive)
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              Created:
              Updated:
              Resolved:

                There are no open Gerrit changes