Nodes · Atelier

CoherentNoise

Atelierv1coreNeeds full input

Overview

Noise that tracks the world: sampled in world space through the position pass, so grain, paper and jitter stay stationary on the surface across a camera move instead of sliding on the glass. A noise layer for other nodes, or applied as grain directly.

How to

How-to

Wire a render with a position pass; set scale in world units (or scale_px on a plate).
output = noise gives the field; grain modes multiply, add or mix it into the picture.
evolve_rate animates it quantised to fps, so it steps with the frames.

Inputs

Input	What it takes
in	the image this node works on

Outputs

Output	Type
out	Image

Parameters

Parameter	Type	Default	What it does
scale	Float	0.05	Feature size in the render's world units (with a position pass) — the field is stationary on the surface on every frame.
scale_px	Float	12.0	Feature size in px on the screen: the fallback without a position pass, and for pixels with none (sky).
octaves	Int	3	Fractal detail.
contrast	Float	1.0	Contrast of the applied grain about 0.5.
amount	Float	0.25	How much the grain is applied (multiply / add / mix).
output	Choice	noise	noise: the field as a `noise` data layer only, for other nodes. multiply / add / mix: applied to the picture as grain. `noisemultiplyaddmix`
evolve_rate	Float	0.0	Ticks per second at which the field drifts (0 = still). Quantized, like the painterly boil.
evolve	Float	0.25	How far one tick moves through the field, in feature sizes.
fps	Float	24.0	The rate `evolve` is quantised to, so the noise steps with the project's frames instead of drifting between them.
seed	Int	7	A different field.
disabled	Bool	false	Bypass: the node passes its first input through untouched (D in the graph). The knobs keep their values for when it comes back.
label	Text		A note shown under the node in the graph — what this node is FOR. Never affects the render or the cache.
hide_input	Bool	false	Draw the node without its input wire — a tidy graph for a node whose source is obvious (a Dot, a viewer tap).