3.7. Linear Motion Blur
| 3. Filtres de flous |

### 3.7. Linear Motion Blur

#### 3.7.1. Overview

Figure 17.22. The Linear Motion Blur filter

Original

Blur applied

This filter creates a linear blur in a direction determined by the « Angle » option. The default direction is horizontal to the right (0.000 degree).

#### 3.7.2. Options

Figure 17.23. « Linear Motion Blur » filter options

Presets, Preview, Split view

  These options are common to GEGL-based filters. Please refer to Section 2, « Options communes ».

Length

  In this case, « Length » represents the blur intensity. More Length will result in more blurring.

Angle

  « Angle » describes the direction of the movement. Thus, a setting of 90 will produce a vertical blur, and a setting of 0 will produce a horizontal blur.

Use selection as input

  Explained in Section 3.4, « Pixelize ».

On-canvas controls

  This option (default) allows you to modify blur settings directly on canvas, for easier visual tweaking of blur settings. It displays a line with handle on both ends to vary direction and transform.

  Press Ctrl key to change direction by 15° steps.

3.6. Circular Motion Blur |  | 3.8. Zoom Motion Blur

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