For entertainment, there has been MVR - My Virtual Rig - specification. The My Virtual Rig file format allows programs to share data and geometry of a scene for the entertainment industry.

Official repo: [1]

Current Spec: [2]

WIP for DIN Spec release: [3]

[1] https://github.com/mvrdevelopment/spec/

[2] https://github.com/mvrdevelopment/spec/blob/main/mvr-spec.md

[3] https://github.com/mvrdevelopment/spec/pull/153