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  1. Qt 3D Studio
  2. QT3DS-2954

Opacity + rotation rendering order issue

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Details

    • Bug
    • Resolution: Won't Do
    • Not Evaluated
    • None
    • Qt 3D Studio 2.3 BETA1
    • Runtime 2.x
    • None

    Description

      Studio runtime 2 renders the attached simplified example wrong. Rectangle should always be rendered on top of Cylinder and there shouldn't be anything flickering. Attached example presentation and video.

      Notes:

      • This happens with both dragon and non-dragon, so not dragon-specific.
      • Changing Cylinder opacity to 1 fixes the issue, so issue appears only with semi-transparency.
      • As seen, rotation of the Rectangle and rotation of the Cylinder affect the rendering order, wrong order happens when some thresholds are reached.

       

      Attachments

        1. opacity_render_tester_2.uip
          3 kB
          Kaj Grönholm
        2. opacity_render_tester.uip
          3 kB
          Kaj Grönholm
        3. opacity_rendering_bug_20190125.mp4
          3.00 MB
          Kaj Grönholm
        4. opacity_rendering_bug_20190128_dragon.mp4
          4.90 MB
          Kaj Grönholm
        5. opacity_rendering_bug_20190128_nodragon.mp4
          5.06 MB
          Kaj Grönholm
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            stromme Christian
            kagro Kaj Grönholm
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            Dates

              Created:
              Updated:
              Resolved:

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