I want to rotate hand bone when I rotate IK bone as well. So I decided to using Copy Rotation constraint. Here's how looks like:
Nothing special, important thing is that Hand Bone has Copy Rotation to IK Bone. I set the Target Space and Onwer Space both Local Space.
But when I rotate IK bone, hand rotates totally wrong axis:
I think this happens because Copy rotation just copy the rotation values literally, my guess.
How do I make hand rotates properly? I think it needs to be change the rotation based on current rotation, but there's no option for that in Copy Rotation constraint.
Any advice will very appreciate it.