### 12.2. Add Bevel

#### 12.2.1. Overview

图 17.259. Example for the “Add Bevel” filter

Original image, the colored rectangle is selected

Filter applied

This filter adds a slight bevel to an image using a bump map (see below). If there is a selection, it is bevelled, otherwise the filter has no effect.

图 17.260. Another “Add Bevel” example, with bumpmap

Original image

Bumpmap

Filter applied

| 注意
If the image is in grayscale mode or indexed mode, this menu entry is disabled.

#### 12.2.2. Activating the Filter

This filter is found in the main menu under Filters → Decor → Add Bevel….

#### 12.2.3. Options

图 17.261. “Add Bevel” options

Thickness

  You can specify the thickness of the bevel, in pixels. Maximal thickness is 30 pixels.

Work on copy

  If checked, the filter creates a new window containing a copy of the image with the filter applied. The original image remains unchanged.

Keep bump layer

  When checked, you will keep the generated bumpmap as a new, not visible layer:

  Layers Dialog with “Keep bump layer” enabled

12. 装饰滤镜 |  | 12.3. Add Border

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