Yes it drifts if I don’t have vcgt enabled. With it enabled its fine.
I guess it is broken because the 3D LUT should contain grayscale calibration without the need for 1D LUT.
The it’s user missconfiguration (99% times this is what happens), not a failure of relative colorimetric intent
The profile describes display WITH vcgt applied, that how it’s measured.
It has been explained lots of times in Resolve/DWMLUT threads. If you embed VCGT in LUT3D, do not use system wide grey calibration. If you do not embed VCGT calibration, then VCGT needs to be applied system wide.
Why? because profile was made from measurements with VCGT applied.
This reply was modified 10 months, 1 week ago by Vincent.
Yes but as I explained before I do not use any system wide gray calibration. I have sRGB IEC611966-2.1 loaded in DisplayCal profile loader. This is Windows default profile. So effectively I have gray calibration turned off. And I’m still getting this issue.
This was explained to me by Florian Hoch years ago that this turns off 1D LUT calibration.
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