2023-02-06 Grease Pencil Module Meeting

Practical info

Date/Time: 2023-02-06T15:00:00Z
Link: https://meet.google.com/ier-srzv-mng

  • Amélie Fondevilla (developer, Les Fées Spéciales)
  • Antonio Vazquez (Grease Pencil Module Owner)
  • Corrado Piscitelli (R&D, Mad Entertainment)
  • Daniel Martinez Lara (Grease Pencil Team)
  • Falk David (Grease Pencil developer)
  • Fiona Cohen (producer, Blender Studio)
  • Flavio Perez (Les Fées Spéciales)
  • Ivan Cappiello (Head of animation, MAD Entertainment)
  • Nick Fox-Gieg (York University)
  • Nick Alberelli (Tiny Media)
  • Ross Barefoot (Elliott Animation, generalist)
  • Samuel Bernou (developer, @pullusb, ADV Studios)
  • Shen Ciao (individual researcher)


  • Announcements
    • Talk about migration to gitea
  • Shen Ciao: Will present his research on brushes rendered in OpenGL (~10min)
  • Plan next meeting to summarize results of the user form and define big goals for GP 3.0.

Meeting Notes

  • Announcements
    • Falk: First day as grease pencil developer, this week will be working on more hair curves selection (as preparation for GP 3.0) and on a first draft of document with high level goals and principles.
    • Fiona: First day as producer at Blender, will be in charge of preparing the grease pencil workshop in a few months.
    • Gitea migration: Tomorrow (2023-02-06T23:00:00Z) will be the switch to gitea.
  • Shen Ciao presented his research on brushes rendered in OpenGL:
    • Work started in Blender as a fix for airbrushes (Blender Archive - developer.blender.org).
    • Then moved to create a tool called Ciallo together with a research paper (in collaboration with Li Yi) and experimented with textured brushes using evenly spaced stamp textures.
    • Implemented a vector based bucket fill tool. Still needs some work as it has issues with floating-point precision and can crash.
    • Falk: This is very much the direction that we want to move with grease pencil.
    • Antonio: We need to make sure that we work along side of the improvements being made with the rendering, brush management and eevee materials.
  • Daniel: Is working on VR for this year together with 2 developers. The idea is to have a basic prototype and figure out the UI in VR (not only for grease pencil drawing but potentially more areas of Blender).
  • Fiona: For the workshop it might be interesting to have not only developers, but also artists on site (budget would allow for this).
  • We decided to do the meeting to summarize the results of the user form on 2023-02-10T15:00:00Z. We will also review the draft of the document that Falk will work on during the week.

Next Meeting