14.6. Perlin Noise
| 14. Filtres Compon |

### 14.6. Perlin Noise

#### 14.6.1. Visió general

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. Activació del filtre

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

#### 14.6.3. Opcions

Figura 17.328. «Perlin Noise» filter options

Presets, Preview, Split view, Use selection as input

  | Nota
  These options are described in Secció 2, «Característiques comunes».

Alpha

  Low values give sharper noise

  Figura 17.329. «Alpha » option examples

  Alpha = 0.300

  Alpha = 3.600

Escala

  Scale of the noise function: works like a zoom.

Z offset

  Vary noise.

  Figura 17.330. «Z offset» option examples

  Z offset = -1000

  Z offset = 0.900

Iteracions

  The number of noise octaves.

  Iterations = 7

14.5. Cell Noise |  | 14.7. Plasma

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