User Guide

GNU Image Manipulation Program
490 / 653
15.9.4 Lighting Effects
15.9.4.1 Overview
Figure 15.123: The same image, before and after applying Lighting filter
(a) Original image (b) Filter Light-Effects applied
You can find this filter through Filters → Light Effectsender → Lighting Effects
This filter simulates the effect you get when you light up a wall with a spot. It doesn’t produce any drop shadows and, of course,
doesn’t reveal any new details in dark zones.
15.9.4.2 Options
Preview When Interactive is checked, parameter setting results are interactively displayed in preview without modifying the
image until you click on OK button.
If Interactive is not checked, changes are displayed in preview only when you click on the Update button. This option is
useful with a slow computer.
General Options
Figure 15.124: ‘Lighting’ filter general options