terrain.noise_south_plainRegional detail
What it does
Every map is split into three climate strips, a desert end, a middle, and a snow end along a direction the seed picks (so “south” isn't literal compass south). This command adds small ground ripple across the DESERT strip only. amp is how tall the ripple is, freq how fine, offset how much of the strip it covers.
Dune-like ripples across the desert third: more amp = a rougher, taller desert while the rest of the map is untouched.
See it on a real map
Reference seed 12345, size 4500. “Try live” opens the generator with the value applied.
default oct=8,freq=1,amp=0.025,offset=-0.02
amp=0 — perfectly flat desert floor try live →
amp=0.1,offset=0.02 — rugged badlands try live →
freq=4 — tiny tight desert ripples try live →