08-08-2026, 08:25 AM
(This post was last modified: 08-08-2026, 08:25 AM by rich2005.
Edit Reason: typo
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(08-06-2026, 11:00 PM)claytoncarney Wrote: Is there a way in GIMP to take an existing image and simulate the effect of placing a sheet of glass on top of the image (viz., a photo in a picture frame)?
Question. What sort of effect should it be ?
Looking at a "photo in a frame" across the room, I see the reflection of an adjacent window (and all the scenery behind the window)
It might be a simple light reflection and you might get there using Filters -> Light & Shadow -> Lighting effects. This is an old plugin, not one of my favourites.
(1) Starting with a picture in a frame (the gmic plugin http://www.gmic.eu does frames)
(2) A new black layer and the lighting effects dialogues I changed the colour and intensity also material specular value. You need to experiment with this filter. Some setting will crash it.
(3) The new layer - The layer mode set to Overlay and opacity reduced. The frame suffers a bit.