Halo

Each halo is a set of layers with independent position, rotation and scale, and each layer can have a glowing setting. An animation system drives per-layer motion through sine, cosine and linear terms on chosen axes, and several terms on the same axis are summed. Subtle idle bobbing and staggered clock-ring rotation are among the motions that can be built this way.

The halo orientation can be locked to the entity, follow its yaw, float freely, sync loosely or use a hybrid mode. Halos are defined in JSON files under data/halo/halo definitions, so data packs and resource packs can add or change them. Commands cover showing a halo above a target entity, hiding it, listing the halos loaded and running a debug mode, and the mod can give a player a glowing crown.

Halo requires Fabric API. Only players need the mod on the client, and a server may run it for extra features without needing it. It is open source under the MIT License, and its source code and issue tracker are public. Builds cover 1.20 – 26.3 on Fabric, Forge and NeoForge, with files for 26.3 on Fabric, 1.20.1 on Forge and 26.2 on NeoForge.