On mardi 26 mai 2020 08:49:11 CEST Tim Mortimer wrote: > Hi > > I am a new user to Darktable 3. I played a little bit with Darktable 2.xx > last year, but i'm hoping to now start diving a little deeper in earnest, > at least as far as my demands as an occasional hobby & travel photographer > demand it. > > I've been doing a bit of research & am trying to follow the 'now & future > recommended' Tone Equaliser, Filmic RGB / 'linear' type editing scenario as > described in various videos & websites that i have found. > > I am getting some very erratic behaviour with respect to history. So > erratic that its difficult to reduce to a cause with any certainty. > > What i have been able to observe is that it seems to be primarily concerned > with use of the Filmic RGB module. > > specifically, selecting a previous place in the history stack causes > behaviours such as: > > * new random occurrences of the Filmic RGB module in the history (sometimes > with what looks to be cumulative / duplicating processing effect) &/or > > * sudden truncation of the history stack to the point of (what was planned > to be) a 'temporary' reversion: edits & modules simply disappear from the > history above the point of reversion, deactivate, & revert to their default > settings. > > As i am new to Darktable (& v.3) specifically, i thought i would raise here > in the first instance rather than jump in a 'report' a bug. But, bug or > not, this is basically rendering this unusable for me at present. > > I'm on an old OSX machine basically frozen at 10.11.6. Longer term, i hope > to migrate to a dedicated Linux machine for photography (& video) but at > the moment resource & space restrictions see me using what is effectively > my 'music' computer. > > I'd appreciate any advice or help, or hopefully someone can reproduce this > or advise of similar so a solution can be found with next update or release. > > Finally, is there a way to either get a digest of this forum, or interact > with it in an 'online only' mode (like a Nabble group for example ...) so i > can keep a lot of unnecessary traffic out of my inbox? > > Appreciate your time & help, & i hope a successful future with Darktable is > ahead of me once i can get this issue sorted.
Perhaps it's mostly a misunderstanding about the way the history stack works: It shows the order in which modules were actived or had their parameters changed. The order in which modules are shown there has *no* relation with the order in which modules are applied. Only the latest (closest to the top) version of each module will be used to generate the final image (duplicates you created explicitly will have a unique name, and count as a separate module) If you add a module, then add a second one, when you then change the parameters of the first, you will see an extra copy of the first module in the history stack. E.g. alternating between "exposition" and "filmic" will get you a whole stack of "filmic" and "exposition" in the history stack, which is perfectly normal. Using the "compress history stack" button will remove all the superseded items, and only keep the last added version. Also, if you select a module in the history stack, and then do an edit, everything above the selected line will be discarded, and then the new line will be added. If you want to keep a snapshot to compare two stages in your edit, can use the "snapshots" item just above the history stack: select the line whare you want to take a snapshot, and click on the "take snapshot" button. Then make sure you select the top line in the history stack again... You'll see a new line appear under "snapshots" with the name and number of the line selected when you took the snapshot. Click on that one, and you'll see a split view with half showing the current edit, other half showing the snapshot state. A second click on the selected shapshot gets you back to the "normal" view. Tl;dr: for simple edits, you can mostly ignore the history stack, apart from an occasional compression if it gets too long. I hope this clarifies the history stack functioning a bit, Remco. ____________________________________________________________________________ darktable user mailing list to unsubscribe send a mail to [email protected]
