LIPScan 3D supports the 400 Series and is free of charge, though it is a commercial product.
https://www.microsoft.com/en-gb/p/lipscan/9nc85cq8b1p9?rtc=1&activetab=pivot:overviewtab
https://youtube.com/watch?v=N14Pi6z-MkE
There is an open-source software called CloudCompare that works with the 400 Series cameras. It is 3D point cloud and mesh programming software.
https://www.danielgm.net/cc/release/index.html
The Python based pyntcloud has the ability to do a point cloud scan and then convert it into a 3D mesh model.
https://github.com/daavoo/pyntcloud
MeshLab is an open source system for processing and editing 3D triangular meshes.
http://www.meshlab.net/
The link below has a guide to using it with the 400 Series.
https://www.andreasjakl.com/capturing-3d-point-cloud-intel-realsense-converting-mesh-meshlab/
