glTF
GL Transmission Format is a royalty-free specification for the efficient transmission and loading of 3D scenes and models by engines and applications.
- Site: https://www.khronos.org/gltf/
- Spec (1.0): https://github.com/KhronosGroup/glTF/blob/master/specification/1.0/README.md
- Spec (2.0): https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md
Version 1.0 was finalized in 2015 by Khronos Group, after its similar counterpart OpenGEX.