Demon Slayer -Kimetsu no Yaiba- The Hinokami Chronicles

[spiritovod]

Skeletal meshes works fine with official build and 4.25-plus override. As for animations, apparently the game is using kind of master skeleton, specific facial animations and additive animations which are not marked as additive, so auto-search and bulk export will pick up like every existing anims for current mesh (which obviously will be of no good). Exporting of "normal" compatible animations works fine.

Update: Switch version of the game is using ACL animations, which are supported with specific build from this topic.

[animanXPS]

Switch version has been released, but I get a !bIndexIsFrozen error and can't seem to load it.
Looking at the logs, it seems that this is a special storage method for pak that was implemented only in UE4.25, and umodel does not support it.

[animanXPS]

@animanXPS: Only native unrealpak from 4.25 engine properly supports "frozen index" format. You can find it here in alternative tools section.

Thank you, spiritovod!
It sure seems to work about pak.
It appears that the switch version of this game contains audio, video, and other streams in the *.pak, while the character models and other content is contained in the *.ucas file. I would like to find a way to extract about this ucas file.

As for UnrealPakViewer, it doesn't seem to work: selecting pak causes a force close, and selecting ucas causes the program to stop functioning.

[animanXPS]

@animanXPS: UnrealPakViewer is third-party tool, so it may not work in some cases, because current implementation of frozen index, inherited by 4.25 plus branch, is a bit different than original one. Just use native unrealpak for such packages, it works fine. As for ucas files, there is no point in extracting anything from them directly (more info here) - but you can use either build from this topic or from this one (since switch version is using ACL animations) with 4.25 plus override to get something from them. Batch operations like scan or export will not work though, as there are some issues with blueprints, which are not supported anyway.

Thank you! They certainly work! The animations loaded fine in the acl version too. Thanks for your help.

I discovered by accident yesterday in the NARUTO thread on discord, FModel can also load it with the 4.25plus setting.

[spiritovod]

@Yumo: It's mentioned in my post above. The game is using master skeleton with all possible bones clamped into it. Though if you're exporting only selected animations, compatible with particular mesh, results should be less confusing.

[spiritovod]

@Yumo: Could you explain the issue in more details then? I've tried to export SK_P0001_V00_C15 mesh with A_P0001_V00_C00_AtkThrow01_Cut animation and it looks the same way in both umodel and blender, more or less correct (there are also animation curves there, which are not supported by umodel), while no errors popped up in blender. I can only comment on possible causes of inconsistencies between export from umodel and export in other tools, because umodel is doing things under the hood to improve previewing (like retargeting), while export is done as-is. If you got some kind of warning, which doesn't prevent psa animation to work in blender, it's probably expected for this game due to already mentioned reasons. It's also possible that you have issues due to import plugin, you can check legacy one with old blender version.

[spiritovod]

@Yumo: Actual mesh doesn't matter here, all SK_P0001_V00_Cxx meshes are Tanjiro skins with almost the same bones. I've only selected one of them for proper example. If it works correctly in blender despite warnings, I can't help. It depends on the game and its specifics and also on the psk/psa importer and its settings (there are various versions), since both umodel and importer are doing things for the output to look correct. The rest, like how to correctly convert such things from blender to fbx, should be addressed rather to blender communities.