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September 14, 2021

Host: Doug Walker

Attendees: 

  • Carol Payne (TSC) - Netflix
  • Doug Walker (TSC Chief Architect) - Autodesk
  •  
  • Thomas Mansencal - Weta Digital
  • J. Schulte - ILM

Apologies: Michael Dolan

OCIO Config Working Group Meeting Notes

  • Review of CLF document for camera vendors
    • Discussion of document: https://docs.google.com/document/d/1uYNnq1IlKqP8fRXnPviZHrAAu37ctvVsjJZeajOFF2A/edit?usp=sharing
    • Carol reviewed upcoming changes to the ACES Versioning spec that were mentioned at the last gamut compression meeting.  Carol will take an action item to update this part of the document to reflect the clarified formatting Scott has proposed.
    • It would be helpful to add some info about intended workflows to help the camera vendors understand how this will be used.  For example, while some workflows will debayer to ACES exr files, others will be using camera log color spaces and the latter is why we need the IDTs in OCIO.  Carol will take an action item to work on a flowchart diagram.
    • It would also be helpful to clarify the repo workflow.  Are we expecting camera vendors to make a PR to a specific repo?  What is the relation to aces-dev?
    • It will be important to sync up with the ongoing IDT efforts in the ACES community.  It is obviously important that the CLF and CTL versions of the transforms stay in sync.
    • Carol took an action item to email Alex, Scott, and Josh and ask them to take a look at our draft.
    • Should the camera vendors be producing both a CTL and CLF?  Which is the ground truth?
    • J: I'd like to continue having the CTL version as a reference.
    • Doug: The CLF might be easier for the vendors to do first since they could test their work in any OCIO v2 app, whereas CTL requires someone with the skills to build it from source and learn how to use the command-line tools.
    • Which repo should the CLFs go in?  Thomas: There is flexibility.  Could go in aces-dev if desired since it is a sub-repo for the config generator.
    • The Implementation Guidelines section needs to be converted from bullets to text.  Doug took an action-item to work on that.
    • Once the document has progressed a bit further we will send to a couple of vendors (ARRI, RED) for feedback.  Would also be great to have their participation in one of our meetings.
  • Other topics
    • Thomas: There is a minor PR in the configs repo ready for review.
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