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Ik broken in part when resolution plane set for any bone other than the first in a kinematic chain

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Symptom

For example, when you create a three bone skeleton and set the resolution plane (Kinematic Joint > Resolution Plane) of the second bone from 'default' to 'preferred axis' OR 'upvector', then back to 'default', the top bone of the chain no longer is affected by IK.

Cause

Logged as Bug #96408:IK broken when resolution plane set for second bone in chain

Solution

The workaround is on the second bone kinematic joint > joint behaviour toggle 'joint is pseudo-root' on and off again. The chain should return to normal.

Applies To: XSI 3.5.x on NT,Win2K

Posted: 1/7/2004

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