Stonn is a 3D viewer that allows you to load LandXML, IFC, GeoJSON and TopoJSON files in the same workspace and see a full project in one place.* What does this fix? - Instead of having to move around between teams with single copies of your Civil3D, Reviit, Rhino, etc. files, you can load everything here to view for example: terrain displacement or maybe a building construction in time (it s in the feature list!) and pack everything in a .sff federated file that contains everything and you can share between teams without hassle. This streamlines a lot the work between teams.It s also optimized for loading massive files, we tested it with gibibyte sized LandXMLs (around 12m triangles) while still being responsive (~20-30 fps) on iGPU.We re still planning the revenue model (the CLI tool and viewer will probably remain free), so for now, enjoy it for free!Oh! Any comments appreciated, I ve been blindsided into this BIM/terrain/3D domain so I m bound to make a lot of mistakes and learn a lot!