I can't seem to find any good tutorials on the new .json materials system. I have all of the materials assigned in blender but cannot figure out how to make a colorable paint. All i get is the no texture material in game.
Maybe this tut could help? But if you make a map, copy the whole content located in the levels-folder of your map's zip-folder into "C:\Users\user_name\Documents\BeamNG.Drive\evels", so that you are able to create new textures. Or simply copy the arts-folder from an another map located in the Directory files of BeamNG.Drive. This path should normally look like: "C:\Program Files (x86)\Steam\steamapps\common\BeamNG.Drive\Content\levels"