terrain.noise_mid_hillRegional detailSame grassy middle strip as noise_mid_plain, but this one makes the proper hills, the classic rolling green interior of a Rust map. It's the strongest of the six regional layers by default.
The rolling green hills in the middle of the island get taller and steeper as amp rises; at 0 the interior deflates to gentle plains.
Reference seed 12345, size 4500. “Try live” opens the generator with the value applied.