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  1. Qt
  2. QTBUG-39370

OpenGL picture update in 5.3.0 very slow

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: P2: Important
    • Resolution: Done
    • Affects Version/s: 5.3.0
    • Fix Version/s: 5.3.2, 5.4.0
    • Component/s: GUI: OpenGL
    • Labels:
      None
    • Environment:
      Centos 6.4. Dell workstation. NVIDIA graphics card.

      Description

      I've just upgraded from 5.2.1 to 5.3.0 and the OpenGL updates have become very slow. For example, in the example hellogl if I move the mouse very rapidly to rotate the image, the rotation lags and takes a second or two to catch up when I stop moving the mouse. The same example compiled with 5.2.1 is instantly responsive. I've hacked a version of the openglwindow example to similarly rotate with the mouse and that shows the same behaviour, so I would guess it is not specific to the old QGLWidget.

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            Assignee:
            lagocs Laszlo Agocs
            Reporter:
            eric David Cosgrove
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              Dates

              Created:
              Updated:
              Resolved:

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