ACEScg for Animation feature and further questions

[ChrisBrejon (Christophe Brejon)]

So I have been doing some discoveries since I first posted this…

Great article about colour space and terminology:

The Importance of Terminology and sRGB Uncertainty

Great post about ACES and texture generation:

Color primaries shifting and Negative values (OCIO) confusion

Hi @nick, thank you so much for the clarification. It’s not far from what I thought was happening, but it was based on speculation, and it’s great to get clear answers. So I guess I’m used to use Linear AWG for comp in Nuke. How would one handle the negative values resulting from working with Alexa plates in ACEScg? It’s visually weird as these areas are bright highlights that become very dark, and keyers don’t like it at all. Also as a side question, are AP1 and RGB primaries similar? On the…

Apparently it is possible to paint in Substance in ACEScg using a 3d lut generated by an exr. I will have to investigate that.

I guess I am still left with my LMT question… If anyone could shine some light on it, that would be much appreciated!

Thanks!