terrain.beach_slopeCoast & ocean
What it does
How much the beach rises from the waterline up to where the grass starts. Despite the name it's a total height, not a steepness — the default 0.002 is only about a 2 m climb, with most of the rise near the grass side.
What you seeRaise it and beaches climb into raised sandy banks; at 0 the whole beach lies dead flat right at the waterline.
See it on a real map
Reference seed 12345, size 4500. “Try live” opens the generator with the value applied.
default 0.002
0 — beach flat at waterline try live →
0.02 — 20 m raised storm beach try live →
-0.002 — beach sinks below waterline try live →