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  1. Qt
  2. QTBUG-133693

Gaussian blur in QSvgRenderer has noticeable banding

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    • Icon: Bug Bug
    • Resolution: Unresolved
    • Icon: P3: Somewhat important P3: Somewhat important
    • None
    • 6.8.2
    • SVG Support
    • None
    • Linux/Wayland

      The QSvgRenderer produces noticeable banding when rendering gaussian blur, for example for drop shadows. See the attached image

       

      The image on the left hand side was produced by QSvgRenderer. The image on the right hand side was produced by running `inkscape --export-type="png" -w 352 -h 352 default.svg`.

      See also the attached demo.

        1. image-2025-02-11-20-13-27-379.png
          98 kB
          Vlad Zahorodnii
        2. svg-render.zip
          14 kB
          Vlad Zahorodnii
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            hatemelkharashy Hatem ElKharashy
            zzag Vlad Zahorodnii
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              Created:
              Updated:

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