Good to have you in this topic Mikael, cause i have one question 🙂
“A train is separated into different meshes”
Am I correct that this means you export a full train from your 3d software to OBJ?
If this is correct, how does the engine know which part is the wheels / bogey / body? Do you name each group of parts a certain name.
Or do you separate wheels/bogey/body and export them as multiple OBJ files?