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In Progress

Fix In Review for 9.1.1, 10.1.2

Under Consideration for 7.1.X

Votes

0

Found in [Package]

7.1.0

9.1.0

10.1.1

Issue ID

DANB-582

Regression

No

Rotating the IK bone chain in certain angles can cause it to flip 180º

Package: 2D Animation

-

This is previously reported by a user in the 2d forums:

https://forum.unity.com/threads/flip-bug-with-inverse-kinematics-limb-solver-2d.1520041/

 

*Steps to reproduce:*

1. Install Animation Samples from 2D Animation package

2. Open up "2 Part Swap" scene under "4 Sprite Swap" directory in the samples

3. In the scene editor, drag the "arm_l_ solver_Target" IKTarget around the joint slowly

*Actual results:* At certain narrow angles, it can be observed that the entire IK Rig flips

*Expected results:* It should not flip at all angles

*Reproducible with versions:* 2D Animation 9.1.0

*Not reproducible with versions:* 

*Can’t test with versions:* 

*Tested on (OS):* MacOS ARM

*Notes:*
*  

  1. Resolution Note (fix version 10.1.2):

    This is fixed on 2D Animation 10.1.2

  2. Resolution Note (fix version 9.1.1):

    Fixed for 2D Animation 9.1.1

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