https://bugs.kde.org/show_bug.cgi?id=436832
Bug ID: 436832
Summary: Fade in/out not working on rendered output
Product: kdenlive
Version: 21.04.0
Platform: Archlinux Packages
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: Translation
Assignee: vpi...@kde.org
Reporter: die-...@elektrische-lasagne.de
Target Milestone: ---
SUMMARY
Fade in/out not working on rendered output
STEPS TO REPRODUCE
1. In the timeline stack two clips above each other (Use tracks V1 and V2)
2. Drag the left upper edge of clip in V2 a bit to the right to create a fade
in
3. Drag the right upper edge of clip in V2 a bit to the left to create a fade
out
OBSERVED RESULT
In the rendering result: As long as fading goes on, the clip beneath (v2) is
not shown, just black. That's not the case in the realtime project monitor
where V1 can be seen though. The moment the fade in the upper video is down to
zero, the lower clip in V1 is abruptly 100% visible.
EXPECTED RESULT
The rendering result should be the same as what's shown in the project monitor:
When fading the clip in v2, the content from v1 should start shimmering
through instead of just showing a black nothing.
SOFTWARE/OS VERSIONS
Windows:
macOS:
KDE Plasma Version: 5.21.5
KDE Frameworks Version: 5.82.0
Qt Version: 5.15.2
MLT: 6.26.1
ADDITIONAL INFORMATION
Tested with
* Kdenlive 21.07.70 from git
* AND Kdenlive 21.4.0 (official arch package)
Both show the bug.
The bug does not occur on
* Kdenlive 20.12.3
Tested on AMD ZEN Hardware with free MESA AMD graphics stack and Intel Hardware
with propriatary Nvidia graphics stack.
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