EnvRef get_perlin - Uberi/MineTest-API GitHub Wiki
Return world-specific perlin noise (int(worldseed)+seeddiff)
[PerlinNoise](../type/PerlinNoise.html) get_perlin([integer](../type/integer.html) seeddiff, [integer](../type/integer.html) octaves, [float](../type/float.html) persistence, [integer](../type/integer.html) scale)
minetest.env:get_perlin(1234, 3, 0.7, 150)