Bug 398434 - Curves effect not reflecting changes but still processing video
Summary: Curves effect not reflecting changes but still processing video
Status: RESOLVED FIXED
Alias: None
Product: kdenlive
Classification: Applications
Component: Effects & Transitions (show other bugs)
Version: 19.04.2
Platform: Appimage Linux
: NOR normal
Target Milestone: ---
Assignee: Vincent PINON
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2018-09-09 17:53 UTC by Javier O. Cordero Pérez (Cuperino)
Modified: 2019-06-13 20:01 UTC (History)
2 users (show)

See Also:
Latest Commit: https://invent.kde.org/kde/kdenlive/commit/9f353c193f799d1ed0ddd5745e87b38f1832a6b3
Version Fixed In: nightly build
fritzibaby: Brainstorm+

Attachments
Screenshot of the Curves effect with some settings applied. (947.94 KB, image/png)
2018-09-09 17:53 UTC, Javier O. Cordero Pérez (Cuperino) 		Details
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Description Javier O. Cordero Pérez (Cuperino) 2018-09-09 17:53:02 UTC 
Created attachment 114864 [details]
Screenshot of the Curves effect with some settings applied.

Applying and messing the "Curves" effect has no effect on the image in any of the possible settings combinations. The effect still slows down playback, as if the image were being processed.

The "Show graph in picture" checkbox is the only setting to have an effect on the image. The graph that shows inside the picture shows a straight line within a transparent grid background, as if the changes to the curve were not being read.

On a side note, the similar "Bézier Curves" effect is working just fine.
Comment 1 emohr 2019-01-13 13:04:39 UTC 
confirmed, can reproduce it. Tested with Appimage Nightly build #50 12.Jan 19
Comment 2 H.H. 2019-06-09 20:39:13 UTC 
For me the curves affect produces a black picture in the preview pane. This bug is new with version 19.04
Comment 3 emohr 2019-06-10 10:15:08 UTC 
Confirmed. I opened issue: https://invent.kde.org/kde/kdenlive/issues/242 .

Workaround: use effect Bezier Curves.
Comment 5 H.H. 2019-06-13 20:01:44 UTC 
Great! Thanks!