### 3.11. Linear Motion Blur

#### 3.11.1. Overview

Figure 17.33. The Linear Motion Blur filter

Original image

Filter 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).

#### 3.11.2. Activating the Filter

This filter is found in the main menu under Filters → Blur → Linear Motion Blur….

#### 3.11.3. Options

Figure 17.34. “Linear Motion Blur” filter options

Presets, “Input Type”, Clipping, Blending Options, Preview, Merge filter, Split view

  | Note
  These options are described in Section 2, “Common Features”.

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.

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.

3.10. Circular Motion Blur |  | 3.12. Zoom Motion Blur

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