Bug 499647 - Text color and effects not as expected
Summary: Text color and effects not as expected
Status: RESOLVED WORKSFORME
Alias: None
Product: kdenlive
Classification: Applications
Component: Title Clips & Subtitles (show other bugs)
Version: 24.12.1
Platform: Other Linux
: NOR normal
Target Milestone: ---
Assignee: Jean-Baptiste Mardelle
URL:
Keywords: triaged
Depends on:
Blocks:
 
Reported: 2025-02-07 15:30 UTC by Stefan Soyka
Modified: 2025-03-12 03:47 UTC (History)
1 user (show)

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


Attachments
Title preview in the title editor (145.95 KB, image/png)
2025-02-07 15:30 UTC, Stefan Soyka
Details
How the title appears from the timeline (188.21 KB, image/png)
2025-02-07 15:32 UTC, Stefan Soyka
Details

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Description Stefan Soyka 2025-02-07 15:30:56 UTC
Created attachment 178050 [details]
Title preview in the title editor

SUMMARY

I added a title clip with text only. I changed the text color to "orange", changed font and font size. In the title editor my changes were reflected as expected. Once I saved the title, added it to the timeline and played it back, the title was not rendered in orange color but in a pale green. Additionally, it was rendered with an interlace-like effect that I had not ordered. Altogether, it had the appearance of a stone age tv screen.

STEPS TO REPRODUCE
1. Create a title with text, change the text color to orange
2. Save the title (the clip preview does not show the accurate color)
3. Add it to the timeline 
4. Play the title

OBSERVED RESULT
color of text is not orange

EXPECTED RESULT
color of text to be orange, not a pale green



SOFTWARE/OS VERSIONS
Linux stefans 6.8.0-52-generic #53-Ubuntu SMP PREEMPT_DYNAMIC Sat Jan 11 00:06:25 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux

ADDITIONAL INFORMATION
No additional graphics adapter installed, only Intel built-in graphics
Comment 1 Stefan Soyka 2025-02-07 15:32:32 UTC
Created attachment 178051 [details]
How the title appears from the timeline
Comment 2 Bernd 2025-02-08 18:25:52 UTC
Looks like your text size is really huge. The first screenshot shows in the upper left hand corner the project viewport indicating that the text object is about 4 times the size of the project dimensions. Is there a reason for this? Do you use the title editor's animation feature?
Comment 3 Stefan Soyka 2025-02-09 10:36:14 UTC
I recreated the effect with "clean" settings, font size 36, canvas size from project settings (720 x 568), no animation. So far, so good. Text color was as expected. Then I added animation. The animation endpoint has a Y-offset of like 1500px. After this change, the color was distorted again. Now, coming to think of it, I had the same effect already years ago in another kdenlive project with an earlier OS and software version.
Is animation not working properly?
Comment 4 Bernd 2025-02-09 22:44:01 UTC
(In reply to Stefan Soyka from comment #3)
> I recreated the effect with "clean" settings, font size 36, canvas size from
> project settings (720 x 568), no animation. So far, so good. Text color was
> as expected. Then I added animation. The animation endpoint has a Y-offset
> of like 1500px. After this change, the color was distorted again. Now,
> coming to think of it, I had the same effect already years ago in another
> kdenlive project with an earlier OS and software version.
> Is animation not working properly?

Are you using the Animation tab in the title editor? Could you NOT use it and use a Transform effect on the title clip instead?
Comment 5 Stefan Soyka 2025-02-10 10:59:17 UTC
I followed your advice and created the title using the title editor and used the "position and zoom" transformation to scroll through it. This did indeed the trick, colors as wanted. 
It is a good workaround and even superior because it allows for key frames to control the flow of scrolling. Nevertheless, the "animation" function in the title editor is broken, obviously since long time, and should - in my opinion - be removed from the title editor.
Thank you for your good work that helped me a lot!
Comment 6 Bernd 2025-02-10 21:05:09 UTC
(In reply to Stefan Soyka from comment #5)
> I followed your advice and created the title using the title editor and used
> the "position and zoom" transformation to scroll through it. This did indeed
> the trick, colors as wanted.
I'm glad it worked. I recommend using the Transform effect because PaZ effect has known issues around compositing artifacts. But up to you.

> Nevertheless, the "animation" function in
> the title editor is broken, obviously since long time, and should - in my
> opinion - be removed from the title editor.
I tested it on my Pop!_OS system with 24.12.1 appimage. Using the title editor's animation feature works as designed, no color degradation visible. Could you please attach the .kdenlive project file for me to test this?

> Thank you for your good work that helped me a lot!
Glad I could help ;-)
Comment 7 Bug Janitor Service 2025-02-25 03:46:48 UTC
🐛🧹 ⚠️ This bug has been in NEEDSINFO status with no change for at least 15 days. Please provide the requested information, then set the bug status to REPORTED. If there is no change for at least 30 days, it will be automatically closed as RESOLVED WORKSFORME.

For more information about our bug triaging procedures, please read https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging.

Thank you for helping us make KDE software even better for everyone!
Comment 8 Bug Janitor Service 2025-03-12 03:47:27 UTC
🐛🧹 This bug has been in NEEDSINFO status with no change for at least 30 days. Closing as RESOLVED WORKSFORME.