2022-09-05 Eevee/Viewport Module Meeting

Practical Info

This is a weekly video chat meeting for planning and discussion of Blender Eevee/viewport module development. Any contributor (developer, UI/UX designer, writer, …) working on Eevee/viewport in Blender is welcome to join.

For users and other interested parties, we ask to read the meeting notes instead so that the meeting can remain focused.

  • Google Meet
  • Next Meeting: September 12, 2022, 11:30 AM to 12:00 PM Amsterdam Time (Your local time: 2022-09-12T09:30:00Z2022-09-12T10:00:00Z)


  • Michael Parkin-White
  • Omar Emara
  • Clément Foucault
  • Jeroen Bakker
  • Dalai Felinto

Draw manager

  • Refactor of draw manager has been reviewed and landed in master. Note that this is just an initial commit and needs more work.
  • EEVEE-Next was hooked up to the new draw manager.

Blender 3.3 LTS/Support

  • Time was spent on fixing high prio bugs and review due to the upcoming release.
  • There was an issue reported by Simon for Project Heist open movie. We are not able to reproduce it. Jeroen will check with Simon and to identify the issue.
  • We looked into the AMD 22.7/22.8 issues. It isn’t clear if the issues are inside the driver or inside Blender. This week we want to continue looking into the root cause of these issues.


Metal Backend

  • Metal shaders have been approved and landed into master. Metal index buffers landed into master. Vertex buffers are approved, but might still not be available in master.
  • Preparing the next patch Metal immediate mode. To actually test the patch a dummy shader will be introduced to test during development.
  • High level patch will be discussed where to switch to geometric shaders alternative.
  • Patch landed that allows more textures to be used in materials on M1 or Apple with AMD GPU. This won’t change the behavior when using Intel.

Vulkan Backend

  • Internal status report has been discussed with Ton about the current state, reasoning and challenges of using Vulkan inside Blender. See Blender Vulkan - Status report for the report. We hope we can find developers interested in participating on this project.

Viewport compositing

  • Some fixes and cleanups have been done.
  • Next nodes would be Fast Gaussian and Glare.

Longer term planning

  • Currently we have 3 bigger projects running that are related to each other.
    • Viewport compositing and needs Metal backend to run on Apple devices as both projects rely on compute shaders that aren’t supported on Apple/OpenGL.
    • EEVEE-Next needs viewport compositing for the Bloom effect.
  • Due to these reason they will be released at the same time. We don’t expect EEVEE-Next and Metal backend to be ready for Blender 3.4
  • Viewport compositor could be an experimental feature in Blender 3.4 on supported platforms.