This filter adds stains to the image.
Every stain is created in a layer of its own. The stain layers are randomly moved to let the stains spread out (at the end you may see the boundary of the moved top layer). So after applying the filter you can easily edit (e.g., move, scale, remove) the stains, or create additional stains using the filter again.
The number of stains (1-10).
Poiché ogni macchia viene creata in un livello a sè tutti i livelli si mescolano nel risultato finale. Se questa opzione è selezionata la relativa modalità di livello viene impostata a «Solo toni scuri», altrimenti è impostata a «Normale».
The layer mode determines how the pixels of the layers are combined. If «Darken only» is unchecked we use «Normal» mode, and every stain covers the pixels of the layers below. If «Darken only» is checked, stains cover the corresponding pixels of the layers below them only if these pixels are lighter.
The gradient that is used for created stains.