Bug 438422 - Fade In/Out effects darkens the image
Summary: Fade In/Out effects darkens the image
Status: REPORTED
Alias: None
Product: kdenlive
Classification: Applications
Component: Video Effects & Transitions (show other bugs)
Version: 21.04.1
Platform: Other Linux
: NOR normal
Target Milestone: ---
Assignee: Vincent PINON
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2021-06-10 15:02 UTC by Lucas Vinicius Hartmann
Modified: 2021-09-22 20:44 UTC (History)
1 user (show)

See Also:
Latest Commit:
Version Fixed In:
Sentry Crash Report:


Attachments
Sample (10.86 KB, application/x-kdenlive)
2021-06-10 15:07 UTC, Lucas Vinicius Hartmann
Details

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Description Lucas Vinicius Hartmann 2021-06-10 15:02:47 UTC
SUMMARY

Fade In/Out effects, when not to/from black, still darken the image.

STEPS TO REPRODUCE
1. Create any white clip, like a title with white background.
2. Place the white clip on the timeline, on two video tracks.
3. Add fade in (or out) effect to the top clip.
4. Check a frame halfway along the fade.

OBSERVED RESULT

Frame will be gray, as a result of combined fade to black+transparent.

EXPECTED RESULT

Frame should be white, as a result of fade to transparent only.

SOFTWARE/OS VERSIONS

Linux: Fedora 34, kernel 5.12.8-300.fc34.x86_64
KDE Plasma Version: ?
KDE Frameworks Version: 5.82.0
Qt Version: 5.15.2

ADDITIONAL INFORMATION
Using rpmfusion-free package kdenlive.x86_64 21.04.1-1.fc34
Comment 1 Lucas Vinicius Hartmann 2021-06-10 15:07:01 UTC
Created attachment 139203 [details]
Sample

Fades from white, to white, but gets gray halfway.