The Wind filter smears bright colors along a wind direction. It is useful for adding impurifications like rust water. It is recommended that you create a mask with the impurification sources and apply the wind filter to that mask (Image 1). Use the Multi-Texture Mixer with the mask as mixing texture to combine ground and impurification material.

The wind direction is controlled with the Direction parameters.

Regulate the strength of the wind with the Amplify value.