MCglTF

The library reads glTF and GLB model files with embedded resources referenced through ResourceLocation, and prepares them for rendering. It supports vertex colors, multiple texture coordinates for compatibility with vanilla rendering, and several animations per model. Materials declared in the glTF extras can link textures, and the library includes example code for rendering a model on a block, an item or an entity.

Because it is a library, MCglTF has no content of its own. A mod that depends on it must build its own rendering logic, and the documented animation blending technique covers only the animations defined in the glTF specification, created through GltfAnimationCreator. Two animations cannot control the translation, rotation, scale or weight of the same node at the same time, so a developer needs a custom animation processor for more complex scenes. Materials that depend on lighting effects rely on OptiFine or Iris with a shader pack, while basic rendering does not.

The project is released under the MIT License and is not open source in the sense of publishing its full source tree with the release. It runs on the client only, so servers do not need it. Files are published for Fabric and Forge, across nine release versions 1.12.2 – 1.19.3, with 2.1.0.0 as the latest build for 1.19.3.