3.2. Brushes Dialog

Figure 15.24. The Brushes dialog

The Brushes dialog

The “Brushes” dialog is used to select a brush, for use with painting tools: see the Brushes section for basic information on brushes and how they are used in GIMP. The dialog also gives you access to several functions for manipulating brushes. You can select a brush by clicking on it in the list: it will then be shown in the Brush/Pattern/Gradient area of the Toolbox. GIMP comes with dozens of brushes, different from each other, because the size, the ratio and the angle of every brush can be set in the tool options dialog. You can also create custom brushes using the Brush Editor, or by saving images in a special brush file format.

This dialog is a dockable dialog; see the section Section 2.3, “Dialogs and Docking” for help on manipulating it.

You can access it:

  • from the Toolbox, by clicking on the brush symbol in the Brush/Pattern/Gradient area (if you have checked the “Show active brush, pattern and gradient” option in the toolbox preferences).

  • From the main menu: Windows → Dockable Dialogs → Brushes;

  • from the Tab menu in any dockable dialog by clicking the tab menu button and selecting Add Tab → Brushes.

  • from the Tool Options dialog for any of the paint tools, by clicking on the Brush icon button, you get a popup with similar functionality that permits you to quickly choose a brush from the list; if you click on the button present on the right bottom of the popup, you open the real brush dialog.

    The simplified “Brushes” dialog

    The button bar at the bottom offers the following functionality:

    • Smaller previews

    • Larger previews

    • View as list

    • View as grid

    • Open the brush selection dialog

    Note that, depending on your Preferences, a brush selected with the popup may only apply to the currently active tool, not to other paint tools. See the Tool Option Preferences section for more information.


When you click on a brush preview, it becomes the current brush and it gets selected in the brush area of Toolbox and the Brush option of painting tools. When you double-click on a brush preview, you will activate the Brush Editor. You can also click on buttons at the bottom of the dialog to perform various actions.

Meaning of the small symbols at the bottom right corner of every brush preview:

  • A blue corner is for brushes in normal size. You can duplicate them.

  • A small cross means that the brush preview is in a reduced size. You can get it in normal size by maintaining left click on it.

  • A red corner is for animated brushes. If you maintain left click on the thumbnail, the animation is played.

The button bar at the bottom offers the following functionality:

The functions performed by these buttons can also be accessed from the dialog pop-up menu, activated by right-clicking anywhere in the brush grid/list, or by choosing the top item, Brushes menu, from the tab menu.


The Brush Editor allows you to view the brush parameters of a brush supplied by GIMP, and you can't change them. You can also create a custom brush: click on the New Brush button to activate the functions of the brush editor; you can select a geometrical shape, a circle, a square or a diamond. This editor has several elements:

The dialog bar: As with all dialog windows, the tab menu button opens a menu allowing you to access and set further related options.

The title bar: To give a name to your brush.

The preview area: Brush changes appear in real time in this preview.

Settings:

Shape

A circle, a square and a diamond are available. You will modify them by using the following options:

Radius

Distance between brush center and edge, in the width direction. A square with a 10 pixels radius will have a 20 pixels side. A diamond with a 5 pixels radius will have a 10 pixels width.

Spikes

This parameter is useful only for square and diamond. With a square, increasing spikes results in a polygon. With a diamond, you get a star.

Hardness

This parameter controls the feathering of the brush border. Value = 1.00 gives a brush with a sharp border (0.00-1.00).

Aspect ratio

This parameter controls the brush Width/Height ratio. A diamond with a 5 pixels radius and an Aspect Ratio = 2, will be flattened with a 10 pixels width and a 5 pixels height (1.0-20.0).

Angle

This angle is the angle between the brush width direction, which is normally horizontal, and the horizontal direction, clock-wise. When this value increases, the brush width turns clock-wise (0° to 180°).

Spacing

When the brush draws a line, it actually stamps the brush icon repeatedly. If brush stamps are very close, you get the impression of a solid line: you get that with Spacing = 1. (1.00 to 200.0).

When you use the Copy or Cut command on an image or a selection of it, a copy appears as a new brush in the upper left corner of the “Brushes” dialog. This brush will persist until you use the Copy command again. It disappears when you close GIMP.


[Note] Note

You can save this clipboard brush with Edit → Paste as → Paste as New Brush… as soon as it appears in the “Brushes” dialog. See Section 3.10.8, “Paste as New Brush”.