ChrisBrejon
October 9, 2020, 10:58am
2
Hello Manu,
as discussed privately, I do not have all the answers to your questions. But here are a few tips.
If you have a look at the CTL code, you may find some pretty good information about what the RRT/ODT does. Here are the links :
// <ACEStransformID>urn:ampas:aces:transformId:v1.5:ODT.Academy.Rec709_100nits_dim.a1.0.3</ACEStransformID>
// <ACESuserName>ACES 1.0 Output - Rec.709</ACESuserName>
//
// Output Device Transform - Rec709
//
//
// Summary :
// This transform is intended for mapping OCES onto a Rec.709 broadcast monitor
// that is calibrated to a D65 white point at 100 cd/m^2. The assumed observer
// adapted white is D65, and the viewing environment is a dim surround.
//
// A possible use case for this transform would be HDTV/video mastering.
//
// Device Primaries :
// Primaries are those specified in Rec. ITU-R BT.709
// CIE 1931 chromaticities: x y Y
// Red: 0.64 0.33
show original
I have also found some useful information in Cinematic Color 2 :
We are currently working on the Knowledge Base of ACEScentral and we’ll make sure that these topics are properly documented.
About LMT, you have probably read the articles from @sdyer :https://acescentral.com/knowledge-base-2/lmts/
From what I have seen, LMT are not fully implemented in softwares and you’ll probably need to edit yourself the OCIO Config to implement them. I have tried in the past and it is a bit tricky.
Chris
