
Intro to Inverse Kinematics
371
The Mystery of IK Instance Naming
Anatomy of an Armature
continued
You can control movement at a head point in various ways: you can allow full rotation (the
default), prevent rotation completely, or limit rotation to create a joint that bends in one
direction, like an elbow or a knee; you can prevent (the default), allow, or limit horizontal
and vertical movement (known as x- and y-translation). You cannot control movement at a
tail point. In a linear armature, most of the joints containing a tail point also contain a head
point; you can constrain the joint by constraining the head. e symbol instance that comes ...