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  1. Qt 3D Studio
  2. QT3DS-101 Enhance Layer Support in Runtime 2.0
  3. QT3DS-127

Layers: Non-standard blend modes for layers with shader and FBO-based workarounds

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      Not convinced the 3DS1 implementation is functional and correct. To begin with, it seems it only supports fullscreen layers. See QT3DS-657.

      Rather, let's implement a working solution for the new runtime.

      Some of the bits needed for this (compositor refactoring) also provide enablers for implementing post-processing effects later on.

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          depends on

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-65080 BlitFramebuffer node unusable when the input/output RT is not actively used elsewhere in the framegraph

          • P1: Critical - Urgent and Important, will STOP the release if matched with set FixVersion field. This includes regressions from the last version that are not edge cases; Data loss; Build issues; All but the most unlikely crashes/lockups/hanging; Serious usability issues and embarrassing bugs & Bugs critical to a deliverable. This is the highest possible priority for requirements.
          • Closed
          relates to

          Technical task - A technical task. QT3DS-335 Add Qt 3D support for extra blend modes via extension

          • P2: Important - Urgent, should be fixed, but will not stop the release.
          • Closed

          Technical task - A technical task. QT3DS-334 Layers: Non-standard blend modes via extensions

          • P3: Somewhat important - Should be fixed, but doesn't affect the release in any way.
          • Closed
          resulted in

          Bug - A problem which impairs or prevents the functions of the product. QT3DS-657 Advanced blend mode fallback breaks for any non-fullscreen layer

          • P1: Critical - Urgent and Important, will STOP the release if matched with set FixVersion field. This includes regressions from the last version that are not edge cases; Data loss; Build issues; All but the most unlikely crashes/lockups/hanging; Serious usability issues and embarrassing bugs & Bugs critical to a deliverable. This is the highest possible priority for requirements.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-65081 BlitFramebuffer does not provide automatic parenting unlike other framegraph nodes

          • P2: Important - Urgent, should be fixed, but will not stop the release.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-65123 BlitFramebuffer coordinate system mismatch

          • P2: Important - Urgent, should be fixed, but will not stop the release.
          • Closed

          Technical task - A technical task. QT3DS-690 Advanced (layer) blend modes produce incorrect results

          • P2: Important - Urgent, should be fixed, but will not stop the release.
          • Closed
          For Gerrit Dashboard: QT3DS-127
          # Subject Branch Project Status CR V
          213840,2 Import advanced blend fallback shaders master qt3dstudio/qt3d-runtime Status: MERGED +2 0
          213920,12 Add support for adv. layer blend modes via custom shaders master qt3dstudio/qt3d-runtime Status: MERGED -2 0

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              lagocs Laszlo Agocs
              lagocs Laszlo Agocs
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