add hills on plane object


In Unity I add a plane object to the scene and of course it is flat.
How do I add hills/valleys to the plane object.

I dont want to use terrain in Unity as I am using a plane.

You can alter the vertices using the Mesh class, but generally that’s not something you’d do. Create the hills/valleys in a 3D app, or just use the terrain object (that’s what it’s for).