Getting a line of decals to match? (ski/snowboarding/tire tracks)

Never tried this, but I think what you describe calls for a spline mesh…
I just once saw a neat Zak Parrish™ tutorial where he created a spline mesh road system… :slight_smile:
As far as I remember that was totally curvy and seemingly seamlessly.

https://www.youtube.com/watch?v=wR0fH6O9jD8