terrain.fade_plainElevation
What it does
How fast the plains texture ramps up to full strength once it starts. A small number means it kicks in suddenly, a big number means it builds up slowly and gently.
What you seeSmall values jump abruptly from flat beach to fully bumpy plains, large values ramp up gently, leaving most of the map smoother.
Gotcha
Setting it to exactly 0 does NOT make the change instant
See it on a real map
Reference seed 12345, size 4500. “Try live” opens the generator with the value applied.
default 0.25
0.05 — abrupt beach-to-bumpy jump try live →
1.0 — gentle half-strength plains try live →
0 — quirk: plains switched OFF try live →