Bug 512263

Summary: Wipes not supporting clips with alpha channel.
Product: [Applications] kdenlive Reporter: Gabriel Gazzán <gabcorreo>
Component: Video Effects & TransitionsAssignee: Jean-Baptiste Mardelle <jb>
Status: REPORTED ---    
Severity: normal    
Priority: NOR    
Version First Reported In: unspecified   
Target Milestone: ---   
Platform: Other   
OS: Other   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:
Attachments: sample project file

Description Gabriel Gazzán 2025-11-17 20:30:41 UTC
Created attachment 186897 [details]
sample project file

Stemming from an issue a Reddit user posted today, I've just tested all of the composite wipes available, and found that several of them don't support clips with alpha channel on the top track.

Those are:
- Circle Wipe
- Horizontal/Vertical Barn Door Wipe
- Push Down/Left/Right/Up
- Rectangular Wipe
- Slide Down/Left/Right/Up
- Wipe Down/Left/Right/Up

...nevertheless, the "Slide" wipe does work correctly.

Perhaps there's something that can be done about it...?
I've attached a simple project file to illustrate the problem.

Thanks!