5.10. Apply Lens

5.10.1. Overview

Figure 16.120. The same image, before and after applying lens effect.

The same image, before and after applying lens effect.

Original image

The same image, before and after applying lens effect.

Filter Apply lens applied


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

5.10.2. Activate the filter

You can find this filter in the image window menu through FiltersLight and ShadowApply Lens

5.10.3. Options

Figure 16.121. Apply Lens filter options

Apply Lens filter options

Preview

If checked, parameter setting results are interactively displayed in preview. Scroll bars allow you to move around the image.

Keep original surroundings

The lens seems to be put on the active layer.

Set surroundings to background color

The part of the active layer outside the lens will have the background color selected in the toolbox.

Make surroundings transparent

The part of the active layer outside the lens will be transparent. This option exists only if the active layer has an alpha channel.

Lens refraction index

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