Please tell what are they for and how to use them. I want street names and other location on my server, but its quite annying with 2D maps, when i meet with bridges etc. Could SMX files help me, if yes please tell me how. Im using C#. Thank You for answers

"Simplified 3D meshes of all LFS tracks." as seen here https://www.lfs.net/programmer

Thought I think what you really want is to handle it throught InSim coordinates.