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….

図17.354 「Perlin Noise」 filter options

Presets, 「Input Type」, Clipping, Blending Options, プレビュー, Merge filter, Split view

	注記
	These options are described in 「Common Features」.

Alpha

Low values give sharper noise

図17.355 「Alpha 」 option examples

Alpha = 0.300

Alpha = 3.600

拡大縮小

Scale of the noise function: works like a zoom.

Z offset

Vary noise.

図17.356 「Z offset」 option examples

Z offset = -1000

Z offset = 0.900

繰り返し

The number of noise octaves.

Iterations = 7