Uploaded image for project: 'Qt 3D Studio'
  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

    XMLWordPrintable

    Details

    • Type: Technical task
    • Status: Closed
    • Priority: P2: Important
    • Resolution: Won't Do
    • Fix Version/s: None
    • Component/s: Runtime 2.x
    • Labels:
      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!

        Attachments

          Issue Links

          No reviews matched the request. Check your Options in the drop-down menu of this sections header.

            Activity

              People

              Assignee:
              lagocs Laszlo Agocs
              Reporter:
              lagocs Laszlo Agocs
              Votes:
              0 Vote for this issue
              Watchers:
              1 Start watching this issue

                Dates

                Created:
                Updated:
                Resolved:

                  Gerrit Reviews

                  There are no open Gerrit changes