If one uses (touches) only destinations red, blue and green then everything works as expected. Other destinations has strange semantics (setting value >0 enables some special mode related to current destination it seems) and red slider resets by double-click to 1.0 while default for iop is zero (it's not enforced in the code in general that they must match, but logically they should, and why only red anyway?). So yeah, aside from RGB outputs, channel mixer is broken, or at least poorly documented and illogical.
On Mon, 02 Mar 2015 22:58:09 +0100 Sebastian <se...@sebix.at> wrote: > >> What puzzles me about channel mixer (I have to admit that I never really > >> used > >> it myself so it's quite new to me) is that when all sliders are at 0 > it seems > >> to do nothing while the slightest change kind of enables it. To me > this looks > >> severely broken. > > > > I can't confirm this with 1.6.2. When all sliders are set to zero I > > get a completely black image. > > Me too, and also with 1.6.3. The user manual backs this experience: > http://www.darktable.org/usermanual/ch03s04s03.html.php > > What does me disturb is the behavior with destination lightness. By > default all channels are on zero, but if I increase for example by a > tiny bit (0,005), a get a nearly black image, boosting the value more, > brings the image. Double-clicking sets the value two 1, but this isn't > the default, it's zero. ------------------------------------------------------------------------------ Dive into the World of Parallel Programming The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net/ _______________________________________________ Darktable-users mailing list Darktable-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/darktable-users
