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 nerdGRAPH 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

Port	Type	Purpose
Input	Texture	Domain warp — the red/green channels displace the cell coordinates
Composite Input	Texture	Composited over the output using the node's Blend Mode and Opacity
Output	Texture	The grayscale cell field, normalized to 0–1

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

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 top 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.

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.