Creating and Editing Transform Constraints

Transform constraints are another control method. Normally, a parent bone's translation, rotation, and scaling will affect its child bones. Transform constraints allow bones that don't have a parent-child relationship to have similar effects.
The target bone of a transform constraint cannot be a child of the controlled bone.

Creating Transform Constraints

1. Select a bone to be controlled.
2. In the properties panel, under the Constraint group's Transform section, select the Set Target button next to Transform
3. Select a bone on the stage to serve as the target bone.
4. The target bone cannot be a child of the controlled bone.
5. The transform constraint is now created
6. For a newly created transform constraint, you need to adjust the translation, rotation, and scaling weights in the properties panel to see the effect.

Editing Transform Constraints

1. Edit the Transform properties in the Constraint group of the bone's properties panel
   • Local: When checked, the controlled bone's changes will use the target bone's local coordinate system as constraint values. Unchecked by default. When unchecked, calculations are based on the world coordinate system.
   • Rotation Weight: Makes the controlled bone rotate following the target bone; value 0-100, 0 means no change, 100 means complete following. Middle values provide linear transitions between these two values.
   • Translation Weight: Makes the controlled bone translate following the target bone; value 0-100, 0 means no change, 100 means complete following. Middle values provide linear transitions between these two values.
   • Scale Weight: Makes the controlled bone scale following the target bone; value 0-100, 0 means no change, 100 means complete following. Middle values provide linear transitions between these two values.
   • Offset: Offset adds an additional value on top of the transformation values for the controlled bone.

Deleting Transform Constraints

1. In the properties panel's operations, click the delete button to remove the Transform constraint.