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  1. Qt
  2. QTBUG-67823

Busy loop in QAspectThread while widget containing Scene3D is not visible

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    • Icon: Bug Bug
    • Resolution: Done
    • Icon: P2: Important P2: Important
    • 5.11.2
    • 5.9, 5.10.1, 5.11.1
    • Qt3D
    • None

      When using the Scene3D QML component in a QQuickWidget, QAspectThread will get in a busy loop while the containing widget is not visible. This does not seem to be related to OnDemand rendering.

      The attached example shows the problem. QAspectThread consumes CPU in a loop until the checkbox is clicked, making QQuickWidget visible.

        1. qquickwidget-busy-loop.zip
          2 kB
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            mauro.persano Mauro Persano
            mauro.persano Mauro Persano
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