DarklightGames/io_scene_psk_psa
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Added automated tests (testing PSA import for now, more to come)

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Colin Basnett
2025-04-02 15:12:23 -07:00
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README.md
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@@ -10,28 +10,21 @@ This software is licensed under the [GPLv3](https://www.gnu.org/licenses/gpl-3.0
# Features
* Full PSK/PSA import and export capabilities.
* Non-standard file section data is supported for import only (vertex normals, extra UV channels, vertex colors, shape keys).
* Non-standard file section data (.pskx) is supported for import only (vertex normals, extra UV channels, vertex colors, shape keys).
* Fine-grained PSA sequence importing for efficient workflow when working with large PSA files.
* PSA sequence metadata (e.g., frame rate) is preserved on import, allowing this data to be reused on export.
* Specific bone collections can be excluded from PSK/PSA export (useful for excluding non-contributing bones such as IK controllers).
* [Bone collections](https://docs.blender.org/manual/en/latest/animation/armatures/bones/bone_collections.html#bone-collections) can be excluded from PSK/PSA export (useful for excluding non-contributing bones such as IK controllers).
* PSA sequences can be exported directly from actions or delineated using a scene's [timeline markers](https://docs.blender.org/manual/en/latest/animation/markers.html), pose markers, or NLA track strips, allowing direct use of the [NLA](https://docs.blender.org/manual/en/latest/editors/nla/index.html) when creating sequences.
* Manual re-ordering of material slots when exporting multiple mesh objects.
* Manual re-ordering of material slots.
* Multiple armature objects can be exported to a single PSK or PSA file, allowing seamless use of [action slots](https://docs.blender.org/manual/en/latest/animation/actions.html#action-slots).
* Support for exporting instance collections.
# Installation
For Blender 4.2 and higher, it is recommended to download the latest version from the [Blender Extensions](https://extensions.blender.org/add-ons/io-scene-psk-psa/) platform.
For Blender 4.1 and lower, you can install the addon manually by following these steps:
1. Download the .zip file of the latest compatible version for your Blender version (see [Legacy Compatibility](#legacy-compatibility)).
2. Open Blender.
3. Navigate to the Blender Preferences (`Edit` > `Preferences`).
4. Select the `Add-ons` tab.
5. Click the `Install...` button.
6. Select the .zip file that you downloaded earlier and click `Install Add-on`.
7. Enable the newly added `Import-Export: PSK/PSA Importer/Exporter` addon.
For Blender 4.1 and lower, see [Legacy Compatibility](#legacy-compatibility).
# Legacy Compatibility
Below is a table of the latest addon versions that are compatible with older versions of Blender. These versions are no longer maintained and may contain bugs that have been fixed in newer versions. It is recommended to use the latest version of the addon for the best experience.
Critical bug fixes may be issued for legacy addon versions that are under [Blender's LTS maintenance period](https://www.blender.org/download/lts/). Once the LTS period has ended, legacy addon versions will no longer be supported by the maintainers of this repository, although the releases will still be available for download.
@@ -41,7 +34,7 @@ Critical bug fixes may be issued for legacy addon versions that are under [Blend
| [4.1](https://www.blender.org/download/releases/4-1/) | [7.0.0](https://github.com/DarklightGames/io_scene_psk_psa/releases/tag/7.0.0) | No |
| [4.0](https://www.blender.org/download/releases/4-0/) | [6.2.1](https://github.com/DarklightGames/io_scene_psk_psa/releases/tag/6.2.1) | No |
| [3.4 - 3.6](https://www.blender.org/download/lts/3-6/) | [5.0.6](https://github.com/DarklightGames/io_scene_psk_psa/releases/tag/5.0.6) | June 2025 |
| [2.93 - 3.3](https://www.blender.org/download/releases/3-3/) | [4.3.0](https://github.com/DarklightGames/io_scene_psk_psa/releases/tag/4.3.0) | September 2024 |
| [2.93 - 3.3](https://www.blender.org/download/releases/3-3/) | [4.3.0](https://github.com/DarklightGames/io_scene_psk_psa/releases/tag/4.3.0) | ~~September 2024~~ |
# Usage
## Exporting a PSK
@@ -69,7 +62,7 @@ Critical bug fixes may be issued for legacy addon versions that are under [Blend
# FAQ
## Why can't I see the animations imported from my PSA?
Simply importing an animation into the scene will not automatically apply the action to the armature. This is in part because a PSA can have multiple sequences imported from it, and also that it's generally bad form for importers to modify the scene when they don't need to.
Simply importing an animation into the scene will not automatically apply the action to the armature. This is in part because a PSA can have multiple sequences imported from it, and also that it's generally bad form for importers to modify the scene in ways that the user may not expect.
The PSA importer creates [Actions](https://docs.blender.org/manual/en/latest/animation/actions.html) for each of the selected sequences in the PSA. These actions can be applied to your armature via the [Action Editor](https://docs.blender.org/manual/en/latest/editors/dope_sheet/action.html) or [NLA Editor](https://docs.blender.org/manual/en/latest/editors/nla/index.html).
@@ -80,6 +73,9 @@ The method I prefer is to simply change the Blender [scene properties](https://d
The second option is to simply change the `Scale` value on the PSK import dialog. This will scale the armature by the factor provided. Note that this is more destructive, but may be preferable if you don't intend on exporting PSKs or PSAs to a game engine.
## How do I control shading for PSK exports?
The PSK format does not support vertex normals and instead uses [smoothing groups](https://en.wikipedia.org/wiki/Smoothing_group) to control shading. Note that a mesh's Custom Split Normals Data will be ignored when exporting to PSK. Therefore, the best way to control shading is to use sharp edges and the Edge Split modifier.
## Why are the mesh normals not accurate when importing a PSK extracted from [UE Viewer](https://www.gildor.org/en/projects/umodel)?
If preserving the mesh normals of models is important for your workflow, it is *not recommended* to export PSK files from UE Viewer. This is because UE Viewer makes no attempt to reconstruct the original [smoothing groups](https://en.wikipedia.org/wiki/Smoothing_group). As a result, the normals of imported PSK files will be incorrect when imported into Blender and will need to be manually fixed.