14.6. Perlin Noise

14.6.1. Overview

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

14.6.2. Activating the filter

This filter is found in the image window menu under FiltersRenderNoisePerlin Noise….

14.6.3. Options

17.335. ábra - Perlin Noise filter options

„Perlin Noise” filter options

Presets, Preview, Split view, Use selection as input
[Megjegyzés] Megjegyzés

These options are described in 2. szakasz - Common Features.

Alpha

Low values give sharper noise

17.336. ábra - Alpha option examples

„Alpha ” option examples

Alpha = 0.300

„Alpha ” option examples

Alpha = 3.600


Scale

Scale of the noise function: works like a zoom.

Z offset

Vary noise.

17.337. ábra - Z offset option examples

„Z offset” option examples

Z offset = -1000

„Z offset” option examples

Z offset = 0.900


Iterations

The number of noise octaves.

Iterations = 7