Mesh Lines - Horizontal and Vertical Edges

[Krypton]

Hi,
When generating meshes, Curvy Splines produces instances of Mesh. Using Unity's API, you can get the list of vertices and triangles of that mesh. From that, you can produce the list of lines making your mesh. Via dot product (or other means), you can deduce what lines are horizontal or vertical.
I hope this helped. If and when you feel like it, please leave a review for the asset, that helps a lot.
Have a nice day

Are you creating the mesh with your own code or with unity?