Auragen docs
Auragen docs

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Operators

Generators
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GeneratorsNoise

Voronoi

Cellular noise generator that divides space into organic regions with configurable distance metric, edge detection, and border width.

The Voronoi node generates cellular noise: space is partitioned into regions around a set of drifting seed points, each cell shaded by its distance to the nearest point. It produces stained-glass, cobblestone, and cracked-surface looks, and its edges can be isolated for a wireframe.

Voronoi default output

  • One texture output; two optional texture inputs (domain warp and composite)
  • Distance Metric, Edge Detect, and Border Width shape the cells
  • The cells drift over time when animation is playing
  • Found in the node graph under Generators as Voronoi
Example patch — drag onto the app to load

The image on the right is the example patch itself — drag and drop it onto the app (or load it with File → Load) to open the full graph.

Inputs and outputs

Voronoi node

PortTypePurpose
InputTextureDomain warp — the red/green channels displace the cell coordinates
Composite InputTextureComposited over the output using the node's Blend Mode and Opacity
OutputTextureThe grayscale cell field, normalized to 0–1

A black (or disconnected) Input produces no warp; the warp strength scales with Scale.

Parameters

Voronoi parameters

Opacity, Blend Mode, ALPHA, Invert Alpha, Threshold Min / Threshold Max — the standard operator header; see Perlin Noise for details.

Structure

  • Distance Metric — how distance to the nearest seed point is measured. Euclidean (default) gives straight, angled cell edges; Manhattan gives blocky, axis-aligned cells; Chebyshev gives square, tile-like cells.
  • Edge Detect (0–1, default 0) — blends the fill toward edges only. At 0 the cells are shaded by distance; raise it to isolate the borders as bright lines on dark for a wireframe.
  • Border Width (default 0.15) — the thickness of the dark seams between cells. Higher values widen the gaps; negative values invert the seam.

Transform

  • Seed (0–99999), Scale (0.01–10, default 1), Scale X / Scale Y (0.01–50, default 5), Offset X / Offset Y (−20 to 20), Rotation (0–360) — the shared generator transform block. Scale sets how many cells fill the frame.

Dynamics

  • Speed (0–5, default 1) — playback rate multiplier for the cell drift, compounding with the global animation speed. 0 freezes the cells.

Every slider has a per-parameter animation bar, so any of these can be animated, audio-driven, or MIDI-mapped — see Parameters and Controls.

Troubleshooting

Cells don't move — the node's Speed is 0, or global animation is paused in the transport bar.

Only borders show, no fill — Edge Detect is raised; lower it to bring back the distance shading.

Cells look muddy — raise Border Width to separate them, or increase Threshold Max contrast.

Related

3D Voronoi

Extruded isometric cells with palettes, wires, and ambient occlusion.

FBM

Set its Noise Type to Voronoi to fold cellular detail into a fractal.

Billow Noise

Fractal noise generator that takes the absolute value of each octave, producing soft, puffy, cloud-like grayscale patterns.

Worley Noise

Cellular noise that outputs the raw feature-point distance field, with F1, F2, and F2 minus F1 modes.

On this page

Inputs and outputsParametersStructureTransformDynamicsTroubleshootingRelated