OptionalbiomesBiome ids it belongs to (empty = any).
OptionalcontextMust be within maxDistance metres of this (roads, lots, junctions, fields, settlement links).
OptionaldepthWater depth range, metres.
OptionalheightHeight above sea level range, metres.
OptionalminMinimum share of the matching biomes at the spot.
OptionalnearWithin this many metres of water.
OptionalslopeGround slope range (rise/run).
What it stands on.
OptionaltemperatureTemperature range, °C.
threejs-worldgen's
PlacementRuleplus the man-made context a prop needs.