Louis NN

On 8/3/2021 at 1:50 PM, Daniel Rheaume said:

@Bruno Mansi

 Thanks for sharing that information! Interesting, and still perplexing!

In my example above then....

If I bring in log footage (scene referred according to above) and do a cst into log c, I assume that would just be a scene ref to scene ref transform, since they are both log? So I should have ootf boxes unchecked?

Conversely, when I go from log c to r.709 at my final output cst, that would be scene referred to display referred? 
So then forward ootf should be enabled?

Is that how you would understand it as well?

Yes that seems to be how it works, but resolve does this automatically for you so we don’t have to touch anything, but just for clarification 

A log to log conversion will have both boxes unchecked

A log to rec709 conversion will have  apply forward OOTF checked

I assume that converting from rec709 back to log would have the reverse OOTF checked (will confirm when back in Resolve)

I still don't know what this OOTF is and how it functions, but It turns on when you input log into the gamma part of the CST.

It turns off if you use HLG, so Resolve is automatically assigning it based on if the input is log or not, which would mean that HLG does NOT require Apply forward OOTF

Hope this makes sense

So basically you don't need to touch it

see below