fBm

Noise noise.fbm GPU

Fractal noise: layers of Perlin or simplex noise at finer and finer scales.

Output with default settings, rendered by LibreTerrain.

Outputs

Port	Type
Out	Heightfield

Settings

Setting	Default	Range / options	Description
Feature size	3,000 m	10 to 100,000 m	Size of the largest features, in metres.
Basis	Perlin	Perlin, Simplex, Value
Octaves	6	1 to 16	Number of detail layers.
Lacunarity	2	1.1 to 4	How much finer each layer is than the last.
Roughness	0.5	0 to 1	How strong each layer is compared with the last (persistence).
Height Mask port	1,000 m	0 to 20,000 m	Difference between the lowest and highest points, in metres.
Base	0 m	-10,000 to 10,000 m	Height of the lowest points, in metres.
Offset X	0 m	-1,000,000 to 1,000,000 m	Slide the noise east/west.
Offset Y	0 m	-1,000,000 to 1,000,000 m	Slide the noise north/south.
Seed	0	0 to 999,999	Change for a different variation.

Mask ports

Settings marked Mask port can be driven by a mask. Click the setting's Mask port button and connect a mask to the new green input: black scales the value to 0, white keeps the value you set.

See also

Billow · Domain Warp · Perlin · Ridged · Simplex · Value · Voronoi