I want to create a UV layout for a very complex terrain mesh where i can achieve this sort of effect: http://static3.depositphotos.com/1009905/267/i/950/depositphotos_2674560-Texture-of-wall-of-the-canyon.jpg
To get the pattern to match up on all of the walls of the mesh, I need the unwrapped v coordinates to be proportional to the mesh’s z coordinate.
I cannot think of any way to do this in blender or with a script while still allowing for a reasonable unwrap in the u direction. This seems like a reasonable problem to solve. Any ideas?