Convert PSA to AHU

Understanding PSA and AHU file formats

PSA files are typically associated with Unreal Engine's animation system, specifically the Persona Animation Set format. These files store skeletal animation data for 3D models, often used in game development and animation pipelines.

AHU files, on the other hand, are less common and are usually related to animation hierarchy units or proprietary animation formats used in specific 3D engines or software. The exact structure of AHU files can vary depending on the application, but they generally contain animation data for 3D models.

How to convert PSA to AHU

Direct conversion between PSA and AHU formats is not widely supported by mainstream 3D software. However, you can use a two-step process involving intermediate formats:

1. Import the PSA file into a 3D software that supports Unreal Engine animation formats, such as Blender (with the PSA/PSK Importer add-on).
2. Export the animation to a more common format like FBX or BVH using File → Export → FBX or File → Export → BVH.
3. Convert the exported file to AHU using the target software's import tools or a dedicated converter, if available. Some proprietary engines or tools may provide an Import function for FBX/BVH and then allow you to save or export as AHU.

Recommended software for conversion

• Blender (with PSA/PSK Importer add-on): Free and open-source, supports importing PSA and exporting to common animation formats.
• 3ds Max (with ActorX plugin): Useful for handling PSA files and exporting to FBX.
• Custom tools: If your AHU format is proprietary, check if the software vendor provides a conversion utility or import/export plugin.

Tips for successful conversion

• Always backup your original files before conversion.
• Check for animation compatibility (bone structure, hierarchy) between formats.
• Test the converted AHU file in your target application to ensure proper animation playback.