glTF (GL transmission format) is a 3D file format that stores 3D model information in JSON format. The use of JSON minimizes both the size of 3D assets and the runtime processing needed to unpack and use those assets. It was adopted for the efficient transmission and loading of 3D scenes and models by applications.
Additive manufacturing file format (AMF) defines open standards for objects description in order to be utilized by additive manufacturing processes such as 3D printing. CAD programs use the AMF file format by making use of the information such as geometry, color and material of the objects. AMF is different than STL format as the lateral does not support color, materials, lattices, and constellations.