Spline IK Heck

• What:

  • “Isner spineâ€? for the neck
  • Head control parented to ground shadow or body root
    • Orient constrains bind head
    • deforms spline IK curve
  • Rotate-only neck control parented to torso
    • Deforms spline IK Curve
  • Neck twist driven by head rotation relative to torso

• For:

  • Automatic head stability in motion

• Pro:

  • Head movement, rotation on single control
  • Good stability for movement anims

• Con:

  • Allows impossible moves
  • Body space head orientation issues