As for Blender, you'll find the 3ds Max plugin (written in C#) in the Babylon.js GitHub repository at
* is the exporter's version. In the archive, you'll find two folders:
2015, that are the currently supported versions of 3ds Max for the
3ds Max is another tool used by 3D artists to create 3D scenes, such as Blender. 3ds Max is the most famous 3D modeler as it is used for many professional 3D video games and known by all 3D artists.
Once you identify the proper version to use (
2015), just copy/paste the binaries in the
bin/assemblies folder and start 3ds Max (typically located at