Thanks, can you please look at #30 as well…
I don’t see why it wouldn’t work, but I don’t have lightroom or windows to test it out.
If you have light room or FRV with light room export capabilities, why not test it out? If it doesn’t work, then we can talk.
Quick questions: is it - as of today - a part of darktable for Windows? Who has tested it?
darktable on windows is still in early stages. If you’re having a problem please report it. The developers rely on users of their respective platforms to do the testing.
It seems that you’d want to export a LR XMP from FRV then try and import that into darktable.
All these theoretical questions about compatibility can be solved by just trying it.
Who has tested it on windows? I don’t know, I haven’t seen anyone report it as not working. No news is good news.
That page is talking about dt support for LR some parameters, so it is unclear to me why you think that dt, but on some particularly oddball platform, might intentionally miss that functionality.
That being said, no clue whatsoever, we (most of dt devs) don’t use LR (or FRV). It sounds like you want to try and report the results.
My intention was/is simple enough (I hope): to ask here about a possibility to use FRV and darktable for Windows (!) together via re-using XMP sidecar files. Please go back to my initial question.
The answers were: try and report - or start from reading the source code. Both are acceptable for me, although I prefer Yes/No (if from developers) and natural languages, not C/CPP and XML. 
Nope, that absolutely won’t work. Not with LR, not with anything else that is not darktable.
The conversion (not counting the standard XMP tags like rating, etc) is one way only.
What do you exactly mean? Can darkatable for Windows read an XMP file as shown in the manual (see above)?
I feel like this is a severely off-topic. Perhaps you should start a new thread, in a proper category.
Not counting the standard XMP tags like rating, subject, keywords, etc, which should just work;
darktable should be able to read lr development steps from xmp’s;
darktable will not be able to write lr development steps into xmp’s;
lr obviously will not be able to read darktable development steps from xmp’s.
Do we have a chance to use Fast Raw Viewer and DTfW in the same streamlined workflow and re-use the XMP file after FRV? There was a discussion a year ago or so, probably stopped.
Other ways of how do not do same things twice?
Just to update the status.
Edits made in fast raw viewer will not be read by darktable, except for possibly star ratings, keywords, and other very common metadata fields. Things like exposure adjustments, curves, and other editing tools will not carry over.
What do you miss in dt what you get in frv?
Well, fast culling, raw histo accuracy, first corrections … in fact, whatever I did in FRV and saved in XMP can not be exported to DTfW. From the other hand, it can be shared with LR.
I think the idea is clear: to start the next step in the workflow exactly from the previous step results.
I am almost sure that it is doable for you to read the XMP file created in FRV. As of today, the FRV results can be exported (fully or partially) to LR and RPP (e.g. exposure, WB…).
The point is how to do the same to/from DTfW. Can save a lot of time for FRV users.
More info on FRV’s metadata compatibility can be found here: https://www.fastrawviewer.com/usermanual14/xmp-metadata. Looks like it gets along with Adobe, CaptureOne and Raw Photo Processor. If I remember correctly, FRV is made by the folks from LibRaw.
@hobo Have you tried asking the devs of FRV? If you paid for it, they might listen to your request…
Did you actually try that? If none of those settings are taken over it might help to file a bug report against darktable and add an XMP file with all those settings used.
The point is how to do the same to/from DTfW. Can save a lot of time for FRV users.
Please don’t ever call darktable DTfW again. Seriously, it hurts.
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Yes, FRV part - as of today - is Adobe-based, published and can be re-used. RPP needs it own metadata format support, this is done. If I am not wrong, the FRV guys can do more from their side if the DTfW XMP-related details will be shared.
Can I somehow find them? Who knows?
You know better!
Darktable for Windows is a bit longer to write out, you see.
