09-21-2020, 10:12 AM
Probably the best forum to ask in is GimpChat. I seem to recall some posts about adding transitions to animations. There is the old Gimp Animation Package plugin (GAP) Big learning curve, Neurolurker (sometimes comes here) maintains the plugin.
As always work in RGB mode: Make a transition and add any before / after sequence as a final assembly before going into any indexed mode.
1. Built into Gimp animation section: a blend filter https://i.imgur.com/G6vWoni.mp4
2. Hands on: using layer groups to add a left to right 'swipe' Make a basic layer group, duplicate, then all about using selections https://i.imgur.com/gihAzkR.mp4
3. More hands on: A rotating swipe, again using layer groups and masks. https://i.imgur.com/p2YueuV.mp4 Having white / black masks is more efficient than white / white.
Using another one of ofnuts plugins flatten-groups-0.0.py to collapse the layer groups:
Where to find them https://sourceforge.net/projects/gimp-to...s/scripts/
Might look labour intensive but for a few layers does not take that long.
As always work in RGB mode: Make a transition and add any before / after sequence as a final assembly before going into any indexed mode.
1. Built into Gimp animation section: a blend filter https://i.imgur.com/G6vWoni.mp4
2. Hands on: using layer groups to add a left to right 'swipe' Make a basic layer group, duplicate, then all about using selections https://i.imgur.com/gihAzkR.mp4
3. More hands on: A rotating swipe, again using layer groups and masks. https://i.imgur.com/p2YueuV.mp4 Having white / black masks is more efficient than white / white.
Using another one of ofnuts plugins flatten-groups-0.0.py to collapse the layer groups:
Where to find them https://sourceforge.net/projects/gimp-to...s/scripts/
Might look labour intensive but for a few layers does not take that long.