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….

Figure 17.354. “Perlin Noise” filter options

	Note
	These options are described in Section 2, “Common Features”.

Low values give sharper noise

Figure 17.355. “Alpha ” option examples

Alpha = 0.300

Alpha = 3.600

Scale of the noise function: works like a zoom.

Vary noise.

Figure 17.356. “Z offset” option examples

Z offset = -1000

Z offset = 0.900

The number of noise octaves.

Iterations = 7