https://bugs.kde.org/show_bug.cgi?id=512264
Bug ID: 512264
Summary: Wave Effect does not affect alpha channel
Classification: Applications
Product: kdenlive
Version First 25.08.3
Reported In:
Platform: Other
OS: Other
Status: REPORTED
Severity: normal
Priority: NOR
Component: Video Effects & Transitions
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
Created attachment 186898
--> https://bugs.kde.org/attachment.cgi?id=186898&action=edit
Showing black where alpha channel and wave are in different phases
SUMMARY
Wave effect when applied to image or video with alpha channel, only affects the
color channels and leaves the alpha channel in place.
STEPS TO REPRODUCE
1. Import two images, one with alpha channel information
2. Place a solid image on V1, Alpha image on V2
3. Add Wave filter on V2
OBSERVED RESULT
Wave filter ignores the alpha channel information, only applying to color
information
EXPECTED RESULT
Alpha channel moves with the color information, not leaving black areas around
edges close to borders of alpha mask
SOFTWARE/OS VERSIONS
macOS: Ventura 13.7.5
ADDITIONAL INFORMATION
Would be nice for Wave Effect to have separate controls for wavelength and
amplitude
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