As discussed during Meeting #13, we have created a super-repository to host and track-down the development effort of the Virtual Working Group in a version-controlled way.
At the moment the repository has sub-modules for Jed and colour-science repositories with their respective implementations of the RGB Saturation model (and the now background-research HSV Control one).
I have pulled and checkout the versions produced for Meeting #13 and Meeting #14 and tagged/released the corresponding versions: https://github.com/colour-science/aces-vwg-gamut-mapping-2020/releases
Here are some points to consider and talk about:
- The various implementations do not have parity, so we will need to discuss the set of minimum features we want to support.
- We will need to add a CTL variant
- If people want, I would be keen to add or link research notebooks and scripts the group has produced:
- Ultimately, the AMPAS should takeover the repo, for now, it is fine for us to host it.
@nick, @carolalynn, @jedsmith and myself are maintainers, @matthias.scharfenber: Do you have a Github handle?
I attached zip files to all the releases so that they can be grabbed easily: https://github.com/colour-science/aces-vwg-gamut-mapping-2020/releases and added some instructions to the README on how to clone and especially init the sub-repo because it was seemingly not clear!
I have made a new version of the OCIO config which uses the native colour space of each DRT as the shaper. So, for example, the FilmLight T-CAM (Rec.709) display transform converts first to FilmLight E-Gamut / T-Log, and then applies the DRT as a 3D LUT to that. This means that it handles values which are outside AP1, but inside E-Gamut, and therefore works on imagery with or without the gamut mapper applied.
It is currently only in my fork, but I will submit a PR later, so it can be properly added the main OCIO configs repo and the super-repository.
I’m not sure if is mentioned elsewhere, but the additional display transforms show up when using the version of the ACES 1.2 config in the
feature/aces_vwg_gm branch of the repo.
The super-repo should be up-to-date, latest config updates from Nick and I pulled the latest changes from Jed.