Terrain Modification

[snow gyro]

I am making a strategy-based game where the player has to build a city. But I am stuck on how to modify the terrain when the user draws a road over it.

[old ingot]

Unity Terrain isn't meant to be modified

You should probably use something else

Or generate your own mesh on top of the terrain that is aligned with the terrain

[snow gyro]

By modification I mean I want to change the height of the pixels of terrain

[snow gyro]

But that can lead to some horrible roads.

[old ingot]

Yeah it is

[snow gyro]

[orchid void]

terrain getheight and terrain setheight, but I imagine it would be a very slow operation.
I'd rather dump the terrain and go with multiple mesh grids