that’s very cool!
Definetely too many options for mere mortals (thinking about a possible implementation in darktable), maybe you can reduce it with some presets and/or 3-4 ‘knobs’ max?
Quoting Todd @priort I also think would be nice to see a comparison between one straight image, one with added grain using the current grain module available in darktable and another using a couple of different sets of parameters according to your taste that could emulate different kind of grains perhaps (if you’ve managed to isolate those params that could emulate for example the tri-x pushed to 1600 or some other typical film – that’s the thing that I always aim for because on the wall just next to my monitor I have a panel with scattered prints and the ones that I still love are old shots taken with tri-x).
EDIT my good friend @Claes reminded me of this thread where Andrea and other knowledgeable contributors have discussed grain and algorithms… I guess my little advice above is totally unnecessary, as it can be seen that Andrea is the sort of guy that has already figured it all out, so I would just say, forget everything else, it would be nice to see the new grain generator implemented somehow in darktable and perhaps a followup to that thread to show a few examples?
It’s funny because I completely forgot that I also added a comment to that thread above, almost 3 yrs after the initial post… and here I am all excited again for some grainy noise to be added to my too clean images!!