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This manual is a rewrite of the 1.6 manual. It is not complete.

Filter Masks

Filter masks show an area of their layer with a filter (such as blur, levels, brightness / contrast etc.). For example, if you select an area of a paint layer and add a Filter Layer, you will be asked to choose a filter. If you choose the blur filter, you will see the area you selected blurred.

Unlike applying a filter to a section of a paint layer directly, filter masks do not permanently alter the original image. This means you can tweak the filter (or the area it applies to) at any time. Changes can always be altered or removed.

Unlike filter layers, filter masks apply only to the area you have selected (the mask).

You can edit the settings for a filter mask at any time, by double clicking on it in the layers docker. You can also change the selection that the filter mask affects by selecting the filter mask in the layers docker and then using the paint tools in the main window. Painting white includes the area, painting black excludes it, and all other colors are turned into a shade of grey which applies proportionally.

This page was last modified on 23 July 2015, at 12:03. Content is available under Creative Commons License SA 4.0 unless otherwise noted.