glTF
The core of glTF is a JSON file that describes the structure and composition of a scene containing 3D models, which can be stored in a single binary glTF file (.glb). The top-level elements of the file include: Scenes and nodes, cameras, meshes, buffers, materials, textures, skins and animations.
Also in the API standards catalog
This standard shows up on both sides of the house — as a data model here, and as a standard applied in API operations. Same standard, two lenses.
See it as an API standard →