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  1. Qt 3D Studio
  2. QT3DS-1740 Enhanced blending support in Runtime 2.x
  3. QT3DS-335

Add Qt 3D support for extra blend modes via extension

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Details

    • Technical task
    • Resolution: Won't Do
    • P2: Important
    • None
    • Runtime 2.x
    • None

    Description

      Would need to support:

      • GL_KHR_blend_equation_advanced
      • GL_NV_blend_equation_advanced
      • OpenGL ES 3.2 which has the KHR extension built in

      Advanced modes also need changes to the fragment shader (3DS default material fragment shaders usually contain "layout(blend_support_all_equations) out;") Thus proper support in Qt 3D needs to cover the extras materials, the shader node stuff, etc. (even though 3DS does not need those)

      Not sure about blend barriers.

      Not convinced this is worth the effort considering we will have to do our own fallbacks for the 3 interesting advanced modes (overlay/color burn/color dodge) anyway. Hence P3.

      Update: Dropped to P4 now that we have working blend shaders (QT3DS-690), yay!

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        Issue Links

          is required for

          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

          Technical task - A technical task. QT3DS-652 Materials: Non-standard blend modes via extension

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

          Bug - A problem which impairs or prevents the functions of the product. QT3DS-651 Materials: Non-standard blend modes for layers with shader and FBO-based workarounds

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

          Technical task - A technical task. QT3DS-127 Layers: Non-standard blend modes for layers with shader and FBO-based workarounds

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

          User Story - Created by Jira Software - do not edit or delete. Issue type for a user story. QT3DS-660 Qt 3D bugs and features required for Runtime 2

          • 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.
          • Withdrawn
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              lagocs Laszlo Agocs
              lagocs Laszlo Agocs
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              Dates

                Created:
                Updated:
                Resolved:

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