14.6. Perlin Noise

14.6. Perlin Noise
	14. Filtry vykreslení

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 image window menu under Filters → Render → Noise → Perlin Noise….

Obrázek 17.340. „Perlin Noise“ filter options

Presets, „Input Type“, Clipping, Blending Options, Preview, Split view

	Poznámka
	These options are described in 2 – „Common Features“.

Alpha

Low values give sharper noise

Obrázek 17.341. „Alpha “ option examples

Alpha = 0.300

Alpha = 3.600

Škála

Scale of the noise function: works like a zoom.

Z offset

Vary noise.

Obrázek 17.342. „Z offset“ option examples

Z offset = -1000

Z offset = 0.900

Iterations

The number of noise octaves.

Iterations = 7