IK Hand Control Spaces

For interaction with the world:
- Hand control is child of the world
- Pro: Easy contact management
- Con: Hand won't follow body
For movement animations:
- Hand control parented to C-G or Ground shadow.
- Pro: Hands follow body through space
- Con: Needs extra constraint for contact with world
- Good candidate for pseudo-IK, or just FK!
Pole vectors:
- Parent PV to C-G for performance anims
  - Talking, gesturing; low “power center�?
- Parent to Torso for “high and tight�? arms
  - Carrying gun, football; high “power center�?
- PV-centric IK group for elbow contact
  - Crawling, fighting

For interaction with the world: