8.2. Apply Lens
| 8. Glass Effects filters |

### 8.2. Apply Lens

Revision History
Revision $Revision: 1578 $ | 2006-11-28 | j.h

#### 8.2.1. Overview

Figure 16.109. The same image, before and after applying lens effect.

You can find this filter through Filters → Glass effects → Apply Lens

After applying this filter, a part of the image is rendered as through a spherical lens.

#### 8.2.2. Options

Figure 16.110. “Apply Lens” filter options

Preview

  Parameter setting results are interactively displayed in preview. Scroll bars allow you to move around the image.

Parameter settings

  - Keep original surrounding: The lens seems to be put on the image.

  - Set surroundings to Background color: The part of the image outside the lens will have the Background color selected in Toolbox.

  - Make Surroundings Transparent: The part of the image outside the lens will be transparent.

  - Lens Refraction Index: Lens will be more or less convergent (1-100).

8. Glass Effects filters |  | 8.3. Glass Tile