grouping layers causes scaling slowdown
Environment/Versions
- GIMP version:2.99.14
- Package: flatpak
- Operating System: linux
Description of the bug
Using groups creates significant slowdown on scale transforms
Reproduction
Is the bug reproducible? Always
Reproduction steps:
- create 10 5k layers, or whatever size will take around 10 seconds to scale on your system
- Scale the image to 50% using cubic interpolation and time it.
- Undo, then group the layers in a single group, scale at 50%, the time taken increases significantly.
…
Expected result: same time
Actual result: different time