I want to make a human portrait which's angle of arms can change by the environment,
to make the arm looks correctly, I add the constraint on it
there is a IK chain with 3 bones and 1 helper, and the middle bone has a constrain.
So it would look like this, looks fine in editor
I use this code to change the helper's position
man.SetBonePosition("hand position", target.position, Space.World);
However, It would only return a folding hand in the game
If the IK has no constraint, it could work normally
How do I use the IK constrain when the help's position is changed by code?