Hello everyone. I just created this account to start with this question because I’m trying to solve this IK problem for days now and I don’t know where else to ask.
This is a complicated set up so I hope that I can help you understand what is going on.
I’m almost done rigging the arm of this APU machine from the Matrix.
It starts with two FK controls in the shoulder (one CTL for each Axis), then goes down to another control for the elbow, then a Twist control for the rotation of the lower arm and then the IK control.
The IKH is parented to the L_armTwist_CTL and both the IKH and the Twist control are point contrained by the gunIK_CTL. That way I can automate the rotation of the lower arm and the translation of the IKH with just the gun control.
The rig gets messed up when I rotate any of the two controls above the Twist_CTL (that is the L_elbowFK_CTL and the L_armRotateForward).
Both the IKH and the gun control lose their original positions and I have to reload the scene before trying something else. “Undo” doesn’t fix it.
Any idea what I can try? Feel free to ask any questions.