I finally managed to make it work! Before your reply actually, but still, thanks a lot, you gave me some infos that could help me to make mods more cleanly.
So here's my adventure, maybe it will help someone who has the same problems.
First, I changed the path of the export folder. I guess it's a question of rights, but it didn't work with my "C:\Users\username\Downloads" folder. However, it worked when the path was set on the mod folder in Local CookedPC, or on a folder in another diskdrive : the "specified path being too long" error disappeared.
Then, I noticed that if I quickly set UPK Manager into offline mode in the settings when starting it, the " Dispatcher Unhandled Exception" error disappeared too. And I also had to uncheck "Show files with type" to make the UPK files appear on the left (why is it checked by default?).
After that, I tried to click more or less everywhere to understand how to rebuild my file, so here's the procedure that worked for me :
- select the UPK I want to mod in the list
- File -> Export Selected Files (the program created a bns/CookedPC/000***** folder in the export folder and put the dds files inside)
- modify the dds, I used paint.net for this
- replace the original dds by the modified dds into the aforementioned folder
- in Rebuild tab, checkmark the 000***** line (which also checks all the dds files), then Rebuild -> Rebuild Selected Exports
- I don't know why, the modded UPK doesn't appear in the export folder, but in NCSOFT\BNS\contents\bns\CookedPC\mod. So I just had to put it into the Local CookedPC mod folder, and it's done^^
(still needs some refining at the junction between the legs and the feet)
So more or less, I did what you suggested. I'll just set the export folder in a proper place, so it's more clear for me.
Three questions now :
- first, is it a problem if I checkmark all the dds files when rebuilding, or should I really select the only one I modified?
- second, when I save the texture into dds file whith paint.net, there is an option to put it to BC1, BC2, up to BC7, but I don't really know how it works. From what I tested, BC1 creates a small file, but degrades the quality of the texture, and BC7 makes a bigger file and keeps quality, but creates a compatibility error when rebuilding. I used BC3 for my file, which doesn't seem to alter the quality, and is compatible. But if you have an explanation on how it works, I'm all ears.
- and finally, I modified the skin color in the texture to make it match my Lyn's (and it's not perfect yet), because it doesn't adapt by itself. Is there a way to make it match the character's skintone automatically? Would be nice if I could make a mod anyone can use.
So once again, thanks a lot for your help. As it seems to work, I'll stick with UPK Manager 1.6.1 for now, but I'll keep in mind the version you showed me, it may prove useful some day.