Bug 443305 - Opacity in composite 0 or 100%, no in between
Summary: Opacity in composite 0 or 100%, no in between
Status: REPORTED
Alias: None
Product: kdenlive
Classification: Applications
Component: Video Effects & Transitions (other bugs)
Version First Reported In: 21.08.1
Platform: Other Microsoft Windows
: NOR normal
Target Milestone: ---
Assignee: Jean-Baptiste Mardelle
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2021-10-04 14:41 UTC by Roxane
Modified: 2025-05-21 16:41 UTC (History)
1 user (show)

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Description Roxane 2021-10-04 14:41:18 UTC 
SUMMARY
The opacity slider in composite on windows doesn't seem to work. I tried with multiple wipes. If the value is 1% to 100%, it's as if it were 100%, 0% is still 0%.

STEPS TO REPRODUCE
1. add composite transition between 2 clips
2. change opacity value to any value that's not 100% (or 0%)

OBSERVED RESULT
The top clip stays fully visible until it disappears at 0%.

EXPECTED RESULT
the 2 clips should 'mix' according to the chosen wipe

SOFTWARE/OS VERSIONS
Windows: 10, v21.08.1
macOS: 
Linux/KDE Plasma: 
(available in About System)
KDE Plasma Version: 
KDE Frameworks Version: 
Qt Version: 

ADDITIONAL INFORMATION
Comment 1 Vincent PINON 2021-10-04 16:00:46 UTC 
A remaining comma/point decimal issue?
Does "affine" transition work properly or is it the same for any type?
Comment 2 Roxane 2021-10-07 09:29:33 UTC 
I don't have affine, not ure if it's normal or not. But composite & transform's opacity works fine