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  1. Qt
  2. QTBUG-132544

painter with antialias leads to visible separation on drawn touching rects

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    • Icon: Bug Bug
    • Resolution: Unresolved
    • Icon: P2: Important P2: Important
    • None
    • 6.8.1
    • GUI: High-DPI
    • None
    • Ubuntu 24.04, Ubuntu on wayland
    • Linux/Wayland

      Drawing rects on wayland with fractional scaling leads to visual separation though they are supposed to be touching.

      The screenshot gives an impression.

      Upper block: 5 rectangles, no antialiasing

      the blocks below with antialiasing, see example code.

        1. Bildschirmfoto vom 2025-01-03 15-49-03.png
          Bildschirmfoto vom 2025-01-03 15-49-03.png
          7 kB
        2. test_alias.tar.gz
          2 kB
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            sorvig Morten Sørvig
            jsundermeyer Jan Sundermeyer
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              Created:
              Updated:

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