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DarklightGames / io_scene_psk_psa

A Blender extension for importing and exporting Unreal PSK and PSA files
GNU General Public License v3.0
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Imported PSK mesh has non-functional Shape Keys #99

Closed Dmgvol closed 4 months ago

Dmgvol commented 4 months ago

Versions Blender: 4.2 io_scene_psk_psa: 7.0.0

Describe the bug When importing a .psk mesh which has morph/shape keys, the keys are listed but not functioning. When adjusting the shape key values - nothing happens. So when exporting it and importing it into UE5.2 - it says "0 morph keys".

To Reproduce Steps to reproduce the behavior:

  1. Import a .psk file with facial expression animation that uses morph/shape keys for animations.
  2. Check the individual ShapeKeys by changing their values and check if any morph as expected.

Expected behavior The expected behavior is to have functioning shape keys, so it's possible to export and import it into UE5 for further modding.

Screenshots shape As shown above, none of the shape keys affect the imported mesh.

Files PSK file: SK_Robocop_Head.zip I've attached the mentioned psk file (zipped), which I exported from the game using the latest FModel.

cmbasnett commented 4 months ago

This appears to be an issue with the file itself, and not the add-on. I checked the data and though the shape keys are listed, there does not appear to be any actual data to work with beyond that:

image

I would report this issue to the FModel or CUE4Parse teams.

Just for clarity, when you import it into UE5.2, what file format are you using? This add-on doesn't support exporting shape keys to PSK since as far as I know, nothing ingests it other than this add-on and maybe some other importers scattered about.