Key Info Rollout
IK Blend—Determines how forward kinematics and inverse kinematics are blended to interpolate an intermediate position. Using an arm to move a hand is an example of forward kinematics. Using the hand to move the arm is an example of inverse kinematics.
Activates when a biped arm or leg (hand and foot) key is current.
0 with Body selected is normal biped space (forward kinematics).
1 with Body selected is Inverse Kinematics, which creates more straight-line motion between biped keys.
1 with Object selected, but no IK Object specified, puts the limb fully into world space.
1 with Object selected and an IK Object specified puts the biped limb into the coordinate space of the selected object; the biped limb follows the specified object.