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The Masking Brush In ON1 Photo RAW And ON1 Effects

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This article is part of a mini-series about the masking features in ON1 Photo RAW and ON1 Effects. This installment introduces the Masking Brush and explains all its controls.

The Masking Brush

The masking brush is a classic paint brush masking tool. It’s the choice to make hand-painted masks or to clean up stray areas left behind by other masking tools, like the Masking Bug. There are three major “personalities” the brush works in:

  • Classic - a traditional, round paint brush to add and remove portions of a mask

  • Perfect Brush - enables edge detection for precision masking work around objects and along edges

  • Custom Brushes - change the brush shape to a custom shape, pattern or texture

No matter the mode, there are a variety of controls to use with the Masking Brush.

See this gallery in the original post

The Masking Brush controls in ON1 Photo RAW and ON1 Effects.

The Masking Brush Controls

From left to right across the toolbar, the masking brush controls are:

  • Style - save brush presets for quick recall of your favorite brush settings

  • Shape - set the shape of the brush. The default is a circle, the classic paint brush.

  • Mode - set the brush so strokes Paint In (reveal) or Paint Out (conceal) the mask

  • Size - the size of the brush

  • Feather - the softness or hardness at the edge of the brush

  • Opacity - the strength of the mask produced by the brush

  • Flow - how quickly or slowly the a brush stroke builds up to the selected Opacity

  • Angle - the angle of rotation of the brush (no effect with the default circular brush shape)

  • Perfect Brush - a control to toggle off/on edge detection

  • Gear Menu - additional controls that affect flow, edge detection, and pen tablet input devices

The settings are per brush stroke. After each brush stroke, you can change the settings and continue painting with the new settings. However, you cannot modify the settings of an already-applied brush stroke.

Additional Masking Brush Notes

There are are few keyboard shortcuts that are very helpful when working with the Masking Brush

  • Shift-X - toggle the mode between Paint Out and Paint In

  • Square bracket keys - increase (]) or decrease ([) the size of the brush

  • Shift-square bracket keys - increase (Shift-]) or decrease (Shift-[) the feather of the brush

Also, note that brush strokes are additive. If you are using a partial opacity brush and strokes overlap, the overlapping areas will get a sum-total strength of the brush strokes. This is quite useful for some types of masking work and a valuable feature. However, if you require a certain area to be masked at partial strength uniformly, you’ll need to do it in a single brush stroke.

Up Next

This masking series continues with a closer look at the difference between Opacity and Flow in the Masking Brush.


See this gallery in the original post