@anon41087856 I have a note that I made after seeing one of your videos (sorry, I don’t remember which one), that if I change the exposure from the default, I should make the same change to the white relative exposure in filmic rgb. Did I understand that correctly, and is it still valid in darktable 3.4? I have looked at the excellent dtdocs user manual, but I can’t find any mention of it there.
It’s not a rule, it’s a recommendation.
Basically - if you change exposure, that probably affects whites and thus white relative exposure… however changing or not depends on the image.
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Well, if you change exposure, you change all tonalities by a certain amount, including the highlights. That means that you might push them beyond the maximum displayable luminosity, and to correct that, you’ll have to adjust the white point in filmic. Whether the change in filmic is the same amount as in exposition will depend from where you started.
For the rest, I judge the image when I adjust filmic, keeping an eye on the histogram to avoid clipping.
And remember that in dt, temporarily pushing the whites a bit too far isn’t fatal, no information is lost.
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