https://bugs.kde.org/show_bug.cgi?id=452773
Bug ID: 452773
Summary: Flatten Layer on animation layer with Transparency
Mask produces strange result
Product: krita
Version: 5.0.5
Platform: Microsoft Windows
OS: Microsoft Windows
Status: REPORTED
Severity: normal
Priority: NOR
Component: Animation
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
Created attachment 148246
--> https://bugs.kde.org/attachment.cgi?id=148246&action=edit
example .kra file
SUMMARY
Executing a Flatten Layer on an animated layer with a transparency mask
duplicates pixels from frames on to unrelated frames.
STEPS TO REPRODUCE
1. Make multi-frame animation layer, with each frame having pixels that extend
outside the 'bounding box' that contains the pixels of the previous frame.
2. Add Transparency Mask to animation layer.
3. Perform 'Flatten Layer' on animation layer.
OBSERVED RESULT
Krita includes pixels from other frames that are outside the 'bounding box' of
the current frame's pixels.
EXPECTED RESULT
Krita preserves the unflattened layer's appearance without adding extra pixels.
SOFTWARE/OS VERSIONS
Windows: 10 21H2
ADDITIONAL INFORMATION
Grouping the animation layer/transparency mask and then merging the group works
correctly and can be used as a workaround.
The contents of the Transparency Mask don't seem to affect the results, whether
it is animated or not.
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