glTF (version 2.0) is a recent JSON-based 3D geometry delivery format. It supports modern materials (PBR) as well as geometry instancing and is supported by many desktop- and web-apps. It is currently a recommended exchange format for new projects. For more details, refer to https://github.com/KhronosGroup/glTF.
Import settings
glTF import has the following options:
File  | Press Browse... to open a file dialog to select a .gltf or .glb file to import.  | 
Import as static model  | When checked, the file will be imported 'as is' and will not be modifiable by cga rules. Otherwise, Start Shapes will be created from the provided (if available: textured) polygons, ready to be used with CGA rules.  | 
Align to terrain  | When checked, the geometry will be automatically aligned to the terrain.  | 
Scale  | Factor applied to the imported object.  | 
Offset  | Adds the specified offset to the imported object: 
  |