Gavoronoise Node

Generates a 2D heightmap using the GavoroNoise algorithm, a procedural noise technique for terrain generation.

Category

Primitive/Coherent

Inputs

Name	Type	Description
angle	VirtualArray	Optional input for dynamically modifying the wavelet orientation per pixel.
control	VirtualArray	Optional input that modulates noise intensity or distribution.
dx	VirtualArray	Displacement with respect to the domain size (x-direction).
dy	VirtualArray	Displacement with respect to the domain size (y-direction).
envelope	VirtualArray	Heightmap used as a post-process amplitude multiplier for the generated noise.

Outputs

Name	Type	Description
output	VirtualArray	The final heightmap generated using the GavoroNoise algorithm.

Parameters

Name	Type	Description
amplitude	Float	Controls the overall intensity of the noise function.
angle	Float	Sets the primary orientation of the wave structures in the noise. Expressed in degrees.
angle_spread_ratio	Float	Determines the degree of variation in the angle of the wave structures. Lower values create more aligned structures.
branch_strength	Float	Controls the prominence of branch-like features in the generated noise.
Spatial Frequency	Wavenumber	Base spatial frequencies in the X and Y directions. The frequencies are defined with respect to the entire domain: for example, kw = 2 produces two full oscillations across the domain width (and similarly for the Y direction).
kw_multiplier	Wavenumber	Multiplier applied to the wave numbers, affecting the frequency scaling of the noise function.
Lacunarity	Float	The frequency scaling factor for successive noise octaves. Higher values increase the frequency of each successive octave.
Octaves	Integer	The number of octaves for fractal noise generation. More octaves add finer details to the terrain.
Persistence	Float	The amplitude scaling factor for subsequent noise octaves. Lower values reduce the contribution of higher octaves.
Gain	Float	Mid-centered gain transformation applied to the elevation values. This is a non-linear recurve operator centered around the mid elevation (typically 0.5). Increasing the gain pushes values toward the minimum and maximum elevations, creating flatter low/high regions with a steeper transition around the midpoint.
Gamma	Float	Standard gamma correction applied to the elevation values. This is a monotonic power-law remapping that shifts emphasis toward low or high elevations, making the overall shape sharper or bulkier without changing its ordering.
Invert Output	Bool	Inverts the output values after processing, flipping low and high values across the midrange.
Remap Range	Value range	Linearly remaps the output values to a specified target range (default is [0, 1]).
Saturation Range	Value range	Modifies the amplitude of elevations by first clamping them to a given interval and then scaling them so that the restricted interval matches the original input range. This enhances contrast in elevation variations while maintaining overall structure.
Smoothing Radius	Float	Defines the radius for post-processing smoothing, determining the size of the neighborhood used to average local values and reduce high-frequency detail. A radius of 0 disables smoothing.
Seed	Random seed number	Random seed number. The random seed is an offset to the randomized process. A different seed will produce a new result.
slope_strength	Float	Controls the strength of slope-based directional erosion in the noise function.
z_cut_max	Float	Defines the maximum cutoff value for the Z-axis in the generated noise.
z_cut_min	Float	Defines the minimum cutoff value for the Z-axis in the generated noise.

Example

Corresponding Hesiod file: Gavoronoise.hsd. Use [Ctrl+I] in the node editor to import a hsd file within your current project.

Note

Example files are kept up-to-date with the latest version of Hesiod. If you find an error, please open an issue.