Perlin noise generates pixels with values that vary between the foreground and background colours, resulting in a cloud pattern. Sometimes known as Clouds or Difference Clouds. It can be used to create realistic looking scaleable textures, including cloud, smoke, and rock or earth-like effects, and is a great way of adding realism to textured areas.
About the Perlin Noise filter
This filter can be found in the Filters Studio.
When the filter is applied, the clouds are generated using the currently selected background and foreground colours. The image data on the active layer is replaced.
Settings
The following settings can be adjusted on the context toolbar:
Octaves—controls the cloud complexity.
Zoom—controls the zoom level of the clouds and the complexity of the noise.
Persistance—controls how blurred or grainy the effect is.
Blend mode—changes how the applied pixels (noise) interact with existing pixels on a layer.
