Cool material instance tutorial for tessellation but I think it’s missing something - the gaps aren’t there, you can see the sun making the tracks glossy.
Tessellation info:
Another snow Tessellation tutorial
And You know, it may not be Voxel mesh displacement, but it still seems to look very nice. Check out this weird mess of an examplehttps://youtube.com/watch?v=KRSi8aUdI2Q
There is also this for just the tessellated material explanation.
Technically you could use this version to paint spots on the map, and activate all of the drawing when on the terrain of the designated Snow type. It’s a lot of adaptation of code but I could see that working with a good 4 hours of work…