I don’t know what you’ve done here but this looks like you’ve checked out the release-3.7.0 tag, where you should just checkout master. At the risk of repeating myself, version 3.7.0 is identical to version 3.6.0 and so does not contain diffuse. The current development version is 3.7.0+485, which means it has 485 additional changes on top of version 3.7.0 (some of which are the diffuse module).
If you’re on Manjaro/ArchLinux and you want to track the development version you would probably be best by installing the darktable-git package from the AUR.
thanks so much for the pointer about the checkout. I incorrectly assumed that the highest number was the master. I scrolled up on the list and saw the master and did the git checkout on that and it worked perfect. Now I can spent the remainder of the weekend exploring diffuse. Thanks again. I’ll pay it forward someday for someone.
Same here. 3 or 5 iterations may work, anything more is just endless calculation …
What would be a good “minimum requirement” to have this working in a reasonable time?
It really needs OpenCL to run in any reasonable speed. There are some new “fast” presets in latest master (that use just one iteration) which might work better without OpenCL.
ok, thanks. So I’ll have to see if I can find a mainboard with some UEFI that’s not faulty (I have two of those that are) so I can get that openCL working without those crashes.
(and suspend-to-ram is welcomed here in Germany as we have world’s highest electricity prices).
One thing I love about this module (along with Color Balance RGB) is how they preserve the colors. Somehow, to my perception, the colors in both pictures are “the same”, except they are foggy in one and not in the other. It’s mind-blowing.
On that, it would be a good exercise to use it on mountainous landscapes with a strong haze (see Play Raws or sample images from other threads). Usually haze removal comes with saturated colour casts. Newer algorithms have improved but it would be nice to see how this module does.
I know, but the way I see it, something can be accurate and physical, and still mind-blowing Don’t get jaded! It’s almost as bad as believing it’s magic.
Blending dehaze in lightness or some other mode will usually avoid the cast…though I think some people enjoy the boost in saturation…I know the dehaze in RT is a very strong effect but I think it does also offer to use a luminance mode…Funny I like the dehaze preset in diffuse module but to me it does not give the traditional appearance of dehaze…it adds a lot of detail and actually seems to brighten the image a bit as opposed to darkening it …at least in my experience…