SUMMARY Using the Rotoscoping effect, the selection outlines do not align with the shape/selection. Applies to animated and static reotoscoping. Note: When animated, if you move/wiggle the selection, the offset may disappear. STEPS TO REPRODUCE 1. Enable monitor "Show Edit mode". 2. Add video clip to timeline + color clip on top. 3. Add rotoscoping effect to color clip. 4. Make a selection on color using rotoscoping. 5. Observe offset. -OPTIONAL- 6. Animate rotoscoping, ~5 frames at a time ( 3- 4 keyframes). 7. Return to first keyframe - (everything aligns). 8. Jump to next keyframe - (notice offset). OBSERVED RESULT The (red) outline of the selection/shape does not align with the Rotoscoping selection outlines. EXPECTED RESULT The (red) outline of the Rotoscoping's selection should align with with the selection/shape SOFTWARE/OS VERSIONS Windows: macOS: (available in the Info Center app, or by running `kinfo` in a terminal window) Linux/KDE Plasma: KDE Plasma Version: KDE Frameworks Version: 6.9.0 Qt Version: 6.7.3 ADDITIONAL INFORMATION In my experience, when animated - a simple wiggle of the selection restores the alignment. Error seems to occur on smaller selections. Error doesn't always occur.
Thank you for reporting. I can confirm the issue. Following your steps. A small gap between the red rotoscoping out line and the color clip shape appear where the AV/clip shine through. In my case the color clip shape seems to be shifted 1 pixel downwards. If you zoom into the monitor by one step the miss alignment is gone.
Created attachment 180261 [details] offset transform Looks like its not specific to the rotoscope effect but more general. You get something similar when using transform and scale in a bit. Then you can see the offset on the red rectangle on the monitor.