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  1. Qt
  2. QTBUG-107691

ShaderEffectSource/layer always accounts for high DPI in textureSize, cannot work with pixels (Incorrect image when layer.enabled is true)

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    • Icon: Bug Bug
    • Resolution: Done
    • Icon: P2: Important P2: Important
    • 6.5.0 Beta1
    • 6.4.0
    • Quick: SceneGraph
    • None
    • Windows
    • 33202a58d7 (qt/qtdeclarative/dev) 33202a58d7 (qt/tqtc-qtdeclarative/dev)

      Setting layer.enabled to true warps the displayed image.
      To reproduce:
      1) Run the attached example
      2) layer.enabled is false, Bayer pattern is visible.
      3) Set layer.enabled to true -> no Bayer pattern visible anymore.
      There should be 3 texels between each black line, but when the layer is enabled there are 4 texels. Total number of texels silently changes from 128 to 160.

      The problem is not reproducible only if "Display Scale and Layout" is set to 100% in the system settings.

        1. pattern.png
          pattern.png
          40 kB
        2. shadertest.7z
          26 kB
        For Gerrit Dashboard: QTBUG-107691
        # Subject Branch Project Status CR V
        438693,3 Improve variable naming in QSGLayer implementation dev qt/qtdeclarative Status: MERGED +2 0
        438694,2 Restore the interpretation of user-provided layer/effect textureSize dev qt/qtdeclarative Status: MERGED +2 0

            qt.team.graphics.and.multimedia Qt Graphics Team
            alexey89 alexey89
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              Created:
              Updated:
              Resolved:

                There are no open Gerrit changes