January 11, 2021

Host: Doug Walker

Rotating Secretary: Mark Boorer

Attendees:

• [x] Mark Boorer (TSC) - Industrial Light & Magic
• [x] Mei Chu (TSC) - Sony Pictures Imageworks
• [ ] Sean Cooper (TSC ACES TAC Rep) - DNEG
• [ ] Michael Dolan (TSC Chair) - Epic Games
• [x] Patrick Hodoul (TSC) - Autodesk
• [ ] John Mertic - Academy Software Foundation / Linux Foundation
• [x] Carol Payne (TSC) - Netflix
• [ ] Mark Titchener (TSC) - Foundry
• [ ] Carl Rand (TSC) - Weta Digital
• [x] Bernard Lefebvre - Autodesk
• [x] Doug Walker (TSC Chief Architect) - Autodesk
• [x] Kevin Wheatley (TSC) - Framestore
• [x] Deke Kincaid - Digital Domain
• [x] Joseph Goldstone - ARRI

Apologies: Michael Dolan Mark Titchner

OCIO TSC Meeting Notes

• Aiming for 2.0.0 release in a few weeks.

  • Merged a bunch of issues identified last week
  • Maya PR (preview) 121 - beta with OCIO v2 features Maya PR 122 to follow shortly with OCIO v2 as default colour management system.

• A few outstanding issues

  • Bug in python bindings
  • Some more cleanups from Autodesk
  • Doug working on a config that shows examples of all 2.0 features

• ACES Working Group gamut mapping, where should it live in OCIO v2

  • Builtin transform or FixedFunction transform?

    • Needs to be in a FixedFunction to implement accurately
    • It has parameters that need to be tweaked.
    • Could have some "presets" mirrored into Builtin transforms if need be.

  • How does adding new Builtins or FixedFunctions relate to OCIO versioning (both config and library)

    • Would neccessitate a minor version update.
      • How does that relate to VFX working platform, (which specifies 2.0.x)
        • Might want to ammend the VFX reference platform as we may have newer patch releases - Doug to investigate

  • More discussion to be had around the addition of the Gamut Mapping implementation as it works through the AMPAS ACES process.

• Discussion about helping migrate tools / users to v2

  • Is there anything more we could do?
  • Might it be useful to have an API endpoint to write our the "lowest" possible config version.
    • Perhaps this could just be the default behaviour of the API config write

• Reschedule the Documentation working group so it is on alternate weeks to the ACES v2 config working group.