Since GIMP 2.4, all brushes have a variable size that can be changed.
You can change the brush size in several ways:
Using the Size slider of the tool options. Pencil, Paintbrush, Eraser, Airbrush, Clone, Heal, Perspective Clone, Blur/Sharpen and Dodge/Burn tools have a slider to vary the brush size.
By using the default shortcut keys for changing a tool's size:
Decrease size by 1: [
Increase size by 1: ]
Decrease size by 10: {
Increase size by 10: }
By using the default mouse scrollwheel actions for changing a tool's size:
Decrease size by 1: Ctrl+Alt+Scrollwheel Down
Increase size by 1: Ctrl+Alt+Scrollwheel Up
By programming the mouse wheel:
In the main window of GIMP, click on
→ .In the left column of the new window, select
→ .You can see
, with two columns: and .In the column
, double-click the button.Then, you see a new window:
.In the left column
, click to get it highlighted.Click the
button (at the bottom middle of the list).You can see the window
.Drop-down the
item, by clicking the small triangle on its left.In the left column
, click to highlight it, then click the button.Now, in front of
is display .Close the window.
With the same method, program
with .Don't forget to click the
button of the main window of .After these somewhat long explanations, you can use your mouse wheel to vary size brush. For example, choose the pencil tool with the “Circle” brush. Set the pointer in the image window, use the mouse wheel, in the two directions, you can see the “Circle” shrinking or stretching.
You can program the “Up” and “Down” arrow keys of the keyboard.
The method is similar to that of the mouse wheel. The only differences are:
In the column
, double-click .In the column
, click for the first key, and for the second key.Then, use the two keys (Up arrow and Down arrow) and the result is the same as you got with the mouse wheel.