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  1. Qt
  2. QTBUG-42330

QPainter::SmoothPixmapTransform is not smooth at over 2x downscaling

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      Description

      QPainter::setRenderHint(QPainter::SmoothPixmapTransform) has no effect whatsoever when painting a QPixmap when QPainter scale is less than 1.0

      When the included project is compiled with Qt4, the results are exceptional. When compiled with Qt 5.3.2 the results are unacceptable.

        Attachments

        1. HorridCanvas.zip
          1 kB
        2. Qt4-vs-Qt5.png
          Qt4-vs-Qt5.png
          20 kB
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            Assignee:
            allan.jensen Allan Sandfeld Jensen
            Reporter:
            sosukodo Christopher
            Votes:
            6 Vote for this issue
            Watchers:
            9 Start watching this issue

              Dates

              Created:
              Updated:

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