Bug 461346

Summary:	chroma key effect broken
Product:	[Applications] kdenlive	Reporter:	Richard <richard.kidd1968>
Component:	Video Effects & Transitions	Assignee:	Jean-Baptiste Mardelle <jb>
Status:	REPORTED ---
Severity:	major	CC:	fritzibaby
Priority:	NOR
Version First Reported In:	22.08.2
Target Milestone:	---
Platform:	Microsoft Windows
OS:	Microsoft Windows
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description Richard 2022-11-03 08:16:53 UTC

SUMMARY
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STEPS TO REPRODUCE
1.  add a clip that has green background to VL2
2.  add a background clip to VL1
3.  add a chroma key effect to the green screen clip on V2
4. select the green screen colour if not already selected, to make background show through
5. render the video

OBSERVED RESULT

the rendered video shows only the green screen clip complete with green screen background

EXPECTED RESULT

expected the background from V1 to show through the green screen clip from V2

SOFTWARE/OS VERSIONS
Windows: Windows 10 Home
macOS: 
Linux/KDE Plasma: 
(available in About System)
KDE Plasma Version: 
KDE Frameworks Version: 
Qt Version: 

ADDITIONAL INFORMATION

Comment 1 Richard 2022-11-07 10:08:25 UTC

I've found if you change the Edge mode to Skinny from the default then it fails in my tests.

Comment 2 Richard 2022-11-07 10:09:00 UTC

(When in Skinny mode, the rendered output renders with a background of green, but in the preview window in the editor it works properly)