3.16. Smeta

The Smudge tool evokes finger painting. It works in two ways:

3.16.1. Aktivera verktyget

There are different possibilities to activate the tool:

  • From the main menu: ToolsPaint ToolsSmudge.

  • By clicking the tool icon in the Toolbox.

  • By pressing the S keyboard shortcut.

3.16.2. Tangentmodifierare (standardvärden)


The Shift key places the smudge tool into straight line mode. Holding Shift while clicking the mouse Left Button will smudge in a straight line. Consecutive clicks will continue smudging in straight lines that originate from the end of the last line.

Figur 14.82. Smudge tool

Smudge tool

Shift click and drag to create line


Using Ctrl with Shift, you can constrain the angle between two successive lines to vary by steps of 15°.

3.16.3. Alternativ

Figur 14.83. Smudge Options

Smudge Options

Normally, tool options are displayed in a window attached under the Toolbox as soon as you activate a tool. If they are not, you can access them from the main menu through WindowsDockable WindowsTool Options which opens the option window of the selected tool.

Opacity; Brush; Size; Aspect ratio; Angle; Spacing; Hardness; Force; Dynamics; Dynamics Options; Apply Jitter; Smooth stroke; Lock brush to zoom

See the Common Paint Tool Options for a description of tool options that apply to many or all paint tools.

Hard edge: this option gives a hard contour to the smudged area.


This option could be called "Smudge length" since it sets the length of the smudging effect in a stroke.

Figur 14.84. Rate example

Rate example

1: Rate=20 2: Rate=60 3: Rate=90

No erasing effect

If smudging will decrease alpha of some pixels; this alpha is not decreased if this option is checked, and so pixels are not erased. This is useful to fill a gap between two color areas.

Figur 14.85. An example of "No erasing"

An example of "No erasing"

Without "No erasing effect"

An example of "No erasing"

With "No erasing effect"


We already saw the different behavior of the Flow option when it is set to 0.00 (works as the original Smudge tool) and set to more than 0.00 (uses the foreground color for smudging).

Here are comments and examples for the No erasing effect and Flow options from gimp-forum.net: