I love ACES and use it every time. The huge frustration is the difficulty to create IDTs. There is no recourse for dummies.
Also DaVinci Resolve offers the possibility to add dctl files in the IDT/ODT folders. OCIO seem way more complex using python and not even sure I can add an IDT or ODT in there. And why Resolve do not offer OCIO V2 color management like all the other softwares?
I work with a GoPro Camera ProtuneLog/NativeGamut. Other people will use other type of camera profiles, D-Log/D-Gamut, F-Log/F-Gamut, Z-Log/Z-Gamut…
Unfortunately, if the manufacturer doesn’t publish a data sheet of their LogGamma/Gamut then I guess, we, as users, are completely screwed and let down.
Nick Shaw made a website with the NativeGamut RGBWxy coordinates and the Protune Log-Gamma Encoding/Decoding formula. I don’t know why, but his website is offline now. Got extremely lucky to have saved his amazing work. I kept the numbers and I’m fairly or naively optimistic that I can create an IDT. After all, this is what ACES should bring us, the ability to enter the manufacturer coordinates and linearize + GamutConvert with a matrix. No?
I think I will need a specialized math gamut and gamma software to make the most precise IDTs and ODTs.
I’ve looked at a lot of work and it seems that they use CAT02 transforms and Bradford transforms. Problem is I have heard a lot of criticisms on these transforms. Also a lot ctlds look like a list of characteristics…
Color science is really hard… I have so much to learn, but I would like to hear from you, why should I not try to make an IDT on my own (even with the manufacturer math)? Maybe the reason is because there is a lot of different formats, different language, code or quality of IDTs.
On github I found the Gopro ProtuneGamma/NativeGamut and ProtuneGamma/Rec709Gamut. I am so grateful for the people that work hard to give the community the Gopro IDTs ctdl for DaVinci Resolve. Thank you guys.
My problem is that I also have shot in Gopro Rec709Gamma/NativeGamut and I need a Protune/Native ODT to export my work back in camera color space.
This is the reason why I make this post, is to solve the IDT rec709/Native and Protune/Native ODT. But, if I succeed, I’ll make a step by step video tutorial on the topic for everyone to get it once for all (If the process is doable).