14.6. Perlin Noise

This filter generates a noise texture using the Perlin Noise algorithm. Results don't depend on the image you opened.

Filter applied with default options: Alpha=1.200 Scale=1.800 Z offset=-1.000 Iterations=3

This filter is found in the main menu under Filters → Render → Noise → Perlin Noise….

Figura 17.354. “Perlin Noise” filter options

Presets, “Input Type”, Clipping, Blending Options, Pré-visualização, Merge filter, Split view

	Nota
	These options are described in Seção 2, “Common Features”.

Alpha

Low values give sharper noise

Figura 17.355. “Alpha ” option examples

Alpha = 0.300

Alpha = 3.600

Escala:

Scale of the noise function: works like a zoom.

Z offset

Vary noise.

Figura 17.356. “Z offset” option examples

Z offset = -1000

Z offset = 0.900

Iterações

The number of noise octaves.

Iterations = 7