The Track To Constraint


This constraint will aim the constrained object or bone at a target.

Options and Settings

OB: The Object to serve as the target (when rigging, it is the name of the Armature Object which contains the target bone).

BO: The Bone to serve as the target.

Align: Target (Button) Copies the target's rotation.

To: X/Y/Z(-) Up:X/Y/Z Determine the aim axis (To), and the axis to face upward in world space (Up).

Head/Tail: Determines whether the head or tail of the control bone is used as the target. The constrained bone can follow the head (0) or tail (1), or any value inbetween (giving access to the whole bone).

CSpace Determines the coordinate system the constrained bones will be evaluated in.
  • World Space means the coordinates will be relative to the world (the grid).
  • Pose Space means the coordinates will be relative to the Armature Object orientations (as if the armature was a container full of bones).
  • Local Space means the coordinates will be relative to the constrained objects/bones themselves.
  • Local Space (With Parent) is the same as Local Space with the addition that the constraint will be evaluated if the control object's parent is transformed, because the controller's transforms are inherited from its parent.
Influence Determines the influence of the constraint as a percentage from 0-100%. This value can be animated manually, or driven by another object or bone in the IPO.

Show Shows the constraint in the IPO window.

Key Sets a keyframe on the current Influence of the constraint at the current frame.

More Resources:
Blender Wiki Page - Track To

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