https://bugs.kde.org/show_bug.cgi?id=462404
Bug ID: 462404
Summary: Certain Effects (Exposure, Vibrance, etc) effect file
clips (Project Bin) vs timeline clips vs master track
differently.
Classification: Applications
Product: kdenlive
Version: 22.08.3
Platform: Microsoft Windows
OS: Microsoft Windows
Status: REPORTED
Severity: normal
Priority: NOR
Component: Effects & Transitions
Assignee: vpi...@kde.org
Reporter: zif...@gmail.com
Target Milestone: ---
SUMMARY
When applying an effect such as Exposure or Vibrance to a file in the Project
Bin, the rendered output in the Clip Monitor changes considerably (orange and
red colors are most noticeably changed) despite using default effect values.
However, the view in the Project Monitor window appears to be correct if the
clip is added to the timeline. This makes it difficult to properly configure
file clip effects using just the Clip Monitor.
Likely related is that if an Exposure effect is applied to the Master track,
the Project Monitor output will then brighten/change (similar to how the Clip
Monitor changed above). If a default Exposure effect is applied to an
individual track, it behaves correctly and there is no visible change in the
Project Monitor output.
STEPS TO REPRODUCE
1. Create a new project and add a video (or likely an image) clip (one with
mid-value oranges or reds makes it more noticeable).
2. Select the new clip and note the orange/red colors in the Clip Monitor.
3. Drag/drop an Exposure effect onto the clip in the Project Bin and note the
change in colors though the effect's values are at their default. The 'Disable
Effect' (Eye Button) in the Effect/Composition Stack can be toggled to see the
difference.
4. Remove the Exposure effect from the file.
5. Drag the clip into the the timeline and view it in the Project Monitor.
6. Drag and Drop an Exposure effect to the new clip in the timeline. Note that
there is *no* visible change when applied (as expected).
7. Remove the Exposure effect from the clip in the timeline.
8. Drag and Drop an Exposure effect to the Master track. Note that the colors
in the Project Monitor now change though they should not.
And just to verify that individual Track-level effects *do* work properly:
9. Remove the clip from the master track.
10. Drag and Drop an Exposure effect to the track containing the clip. Note
that no change with the default exposure values occurs (as expected).
OBSERVED RESULT
* Certain effects sometimes change the output in the Clip Monitor or Project
Monitor despite using the same default values.
EXPECTED RESULT
* Applying an effect to files vs. timeline clips vs. master track vs.
individual tracks should result in the same rendered output from the Clip
Monitor or Project Monitor.
SOFTWARE/OS VERSIONS
Windows: 11
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