https://bugs.kde.org/show_bug.cgi?id=422316
Bug ID: 422316
Summary: Rotate Filter (keyframe) not rotating like expected
Product: kdenlive
Version: 20.04.1
Platform: Archlinux Packages
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: Effects & Transitions
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
Created attachment 128969
--> https://bugs.kde.org/attachment.cgi?id=128969&action=edit
kdenlive sample file for the described rotation issue
SUMMARY
When trying to start a rotation around the z-axis(value 800, keyframe 1),
stopping when the rotation is at value 0 (keyframe 2 and 3) and then trying to
continue the rotation (keyframe 4, value -800), the rotated clip spins in the
direction "where it came from", instead of continuing the rotation.
Sample clip attached.
STEPS TO REPRODUCE
1. Add clip (text clip making it more obvious than color clip for example)
2. Add rotation keyframable effect
3. add keyframe-rotation around z-axis at first frame with for example 800
4. add keyframes 2 and 3 after 1s and 2s with 0 rotation, add 4th frame with
-800 (or +800)
OBSERVED RESULT
Clip spins around z-axis counter-clockwise until keyframe 1 and rotates
clockwise after the 3rd keyframe. Changing the z-axis value in the 4th keyframe
does not change the rotation.
EXPECTED RESULT
When the rotation initiates on a negative value (keyframe 1, gets stopped at 0
(keyframe 2 and 3) and continues the rotation with a positive value (keyframe
4) the direction of the rotation should be the same.
At the moment it seems to be impossible to continue the rotation into the same
direction as both negative and positive values in keyframe 4 do not seem to
change the spins direction.
SOFTWARE/OS VERSIONS
Windows:
macOS:
Linux/KDE Plasma:
(available in About System)
KDE Plasma Version:
KDE Frameworks Version:
Qt Version:
ADDITIONAL INFORMATION
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