| Summary: | Layered video brightens bottom layer | ||
|---|---|---|---|
| Product: | [Applications] kdenlive | Reporter: | Cheddar Fox <cheddarthefox> |
| Component: | Rendering & Export | Assignee: | Jean-Baptiste Mardelle <jb> |
| Status: | REPORTED --- | ||
| Severity: | minor | CC: | berndmj, cheddarthefox |
| Priority: | NOR | Keywords: | triaged |
| Version First Reported In: | 24.12.1 | ||
| Target Milestone: | --- | ||
| Platform: | Microsoft Windows | ||
| OS: | Microsoft Windows | ||
| Latest Commit: | Version Fixed In: | ||
| Sentry Crash Report: | |||
| Attachments: | Example of how the brightnes changes when the layer starts on timeline | ||
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Description
Cheddar Fox
2025-02-06 22:03:13 UTC
What effect do you use for the overlaying? I'm using separate video layers to overlay the camera video. The effects am using on the camera are the "Bluescreen0r" Effect and the "Transform" Effect. If I remove both effects, due to the camera video being 480x480 square and the main video being 16/9 I can still see the bottom layer and the problem is still occurring with no effects applied if the bottom layer is video. Created attachment 179349 [details]
Example of how the brightnes changes when the layer starts on timeline
I have just discovered that this bug also exists for text objects. The moment a text object starts in the time line, whether it is being faded in or not, the overall image output for everything behind this layer is instantly brighter as if a white box with 5% transparency was put on top along with the text. Even when the text has not faded in yet this filtering effect is happening. It is most obvious on dark clips.
What is the setting in Kdenlive > Settings > Configure Kdenlive > Misc for the preferred timeline compositing method? (In reply to Bernd from comment #4) > What is the setting in Kdenlive > Settings > Configure Kdenlive > Misc for > the preferred timeline compositing method? I have it set to auto currently. I went to try both the other options but when I did transparency on everything in the video stopped working all together and everywhere there should be transparency there is just black... I changed it back and reopened the program but it is still doing the same thing... Hopefully that is not going to be a problem next time I go to edit... (In reply to Cheddar Fox from comment #5) > (In reply to Bernd from comment #4) > > What is the setting in Kdenlive > Settings > Configure Kdenlive > Misc for > > the preferred timeline compositing method? > > I have it set to auto currently. I went to try both the other options but > when I did transparency on everything in the video stopped working all > together and everywhere there should be transparency there is just black... > I changed it back and reopened the program but it is still doing the same > thing... Hopefully that is not going to be a problem next time I go to > edit... The good news is it seams the transparency only broke in the one project and i'm already done that one so its not a problem. (In reply to Cheddar Fox from comment #6) > (In reply to Cheddar Fox from comment #5) > > (In reply to Bernd from comment #4) > > > What is the setting in Kdenlive > Settings > Configure Kdenlive > Misc for > > > the preferred timeline compositing method? > > > > I have it set to auto currently. I went to try both the other options but > > when I did transparency on everything in the video stopped working all > > together and everywhere there should be transparency there is just black... > > I changed it back and reopened the program but it is still doing the same > > thing... Hopefully that is not going to be a problem next time I go to > > edit... > > The good news is it seams the transparency only broke in the one project and > i'm already done that one so its not a problem. Ok. So I did more experimentation and the problem that makes everything look lighter only happens on qtblend and auto. frei0r.cairoblend works fine but for whatever reason changing between any of these presets bricks the transparency on whatever project is open... Will need to make another bug report for that. |