In the context of modding, BHUNP and 3BA are specialized body systems used to create custom character outfits with advanced physics and high-detail customization. While these systems originated in the Skyrim modding community, creators have adapted them for Genshin character models to allow for more sophisticated movement and unique aesthetic variants. Core Body Systems
: Users can use the BodySlide and Outfit Studio tool to adjust sliders (e.g., muscle definition, proportions) so the costume perfectly fits their preferred body shape.
These systems act as the "skeleton" and "skin" that a custom outfit is built upon: