MHA_ARkitConverter is a dedicated plugin for Unreal Editor, designed to efficiently convert MetaHuman Animator facial animations to the ARKit standard expression system.

It can batch-map MHA facial curves to the standard ARKit52 target curves via a JSON configuration file, and automatically generate new AnimSequence animation assets. The plugin supports joint coupled solving, jaw and mouth linkage models, and provides three smoothing filtering modes: None, EMA, and OneEuro, allowing flexible control over animation quality.

Users only need to select animations in the Content Browser, right-click to perform one-click conversion, and choose to overwrite, create new, or cancel when handling asset conflicts. You can also decide whether to keep the original MHA curves, achieving pure ARKit output or mixed output. The plugin features complete logs and troubleshooting prompts, along with debugging tools to help quickly locate issues in mapping, solving, and parameters. It is ideal for standardizing digital human facial animations and cross-platform expression adaptation.