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By Design
Votes
0
Found in
2019.1.0a1
2019.1.0b9
2019.2.0a1
Issue ID
1144392
Regression
No
Animation is jiggered when manually dragging animation window playback head through keyframes
To reproduce:
1. Open attached project
2. In Hierarchy window, select 'AnimationCon' instance and enable Animation Component in the Inspector
3. Enter the Play Mode
-- Moving leg animation is smooth
4. Manually drag the Animation window's playback head between frames while in Play mode
-- Moving leg animation is twitchy, jiggered
Expected: animation is smooth when dragging the playback head
Actual: the animation is jiggered when dragging the playback head
Reproduced with:
2019.1.0f2, 2019.2.0a12
Notes:
- Playing animation in the Animation window as well results smooth animation
- Could not test with 2018.3 due missing Animation Rigging package
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Resolution Note:
This is by design.
TwoBoneIKConstraint source objects transforms are being written to by a custom user script (LeftIKAttrRig). This script is animated in an Animation component that is nested in the Animator hierarchy that is driving the animation rigging. Doing it like this will always result in a frame of delay and while this is not so noticeable in runtime, scrubbing in the animation window will make the issue much more apparent.