2025-05-12 TSC Meeting notes

Dev Days - May 15 

• Please pay extra attention to slack/github!

• If you have good first issues, please log them!

Exponent bug

• Effects exponent transform - op can clamp, mirror, or passthrough. Passthrough option was not composing correctly in the optimizer

• If you have two exponent ops adjacent to one another, result will be wrong

• Should we do another patch release? Leaning no, but wanting groups opinion.

• Group decides no, can wait for 2.5

CI Docs on MacOS

• Issue – documentation build not working on macOS

• Zach has a PR up, https://github.com/AcademySoftwareFoundation/OpenColorIO/pull/2158

• Please take a look and review if you have a moment, we’d like to get this in before Dev Days

CMake 4.0 support

• Cuneyt is starting to work on this and a variety of other third party dependencies that might need to come along for the ride

• C++ is a different issue - will go to a minimum of 17

CIF meeting 5/19

• Display color spaces initiative deck: https://docs.google.com/presentation/d/1mb0JG1JchDiuL8cQG44QaWgCHdQhyfxNkOKnkAAzOA8/edit?usp=sharing

• Similar to texture asset color spaces deliverable

• Doc would be a “Rosetta Stone” for connecting all the dots between different display metadata systems

• Joseph - how would we clarify HLG adaptations?

  • Doug - we’d enumerate those less-common knowledge in the specification we publish

• Group seems relatively happy with the initial list

• Extended sRGB - scRGB on windows - used to do HDR (with limitations)