Constraint Type Items

Motion Tracking

CAMERA_SOLVER

Camera Solver.

FOLLOW_TRACK

Follow Track.

OBJECT_SOLVER

Object Solver.

Transform

COPY_LOCATION

Copy Location.

Copy the location of a target (with an optional offset), so that they move together.

COPY_ROTATION

Copy Rotation.

Copy the rotation of a target (with an optional offset), so that they rotate together.

COPY_SCALE

Copy Scale.

Copy the scale factors of a target (with an optional offset), so that they are scaled by the same amount.

COPY_TRANSFORMS

Copy Transforms.

Copy all the transformations of a target, so that they move together.

LIMIT_DISTANCE

Limit Distance.

Restrict movements to within a certain distance of a target (at the time of constraint evaluation only).

LIMIT_LOCATION

Limit Location.

Restrict movement along each axis within given ranges.

LIMIT_ROTATION

Limit Rotation.

Restrict rotation along each axis within given ranges.

LIMIT_SCALE

Limit Scale.

Restrict scaling along each axis with given ranges.

MAINTAIN_VOLUME

Maintain Volume.

Compensate for scaling one axis by applying suitable scaling to the other two axes.

TRANSFORM

Transformation.

Use one transform property from target to control another (or same) property on owner.

TRANSFORM_CACHE

Transform Cache.

Look up the transformation matrix from an external file.

Tracking

CLAMP_TO

Clamp To.

Restrict movements to lie along a curve by remapping location along curve’s longest axis.

DAMPED_TRACK

Damped Track.

Point towards a target by performing the smallest rotation necessary.

IK

Inverse Kinematics.

Control a chain of bones by specifying the endpoint target (Bones only).

LOCKED_TRACK

Locked Track.

Rotate around the specified (‘locked’) axis to point towards a target.

SPLINE_IK

Spline IK.

Align chain of bones along a curve (Bones only).

STRETCH_TO

Stretch To.

Stretch along Y-Axis to point towards a target.

TRACK_TO

Track To.

Legacy tracking constraint prone to twisting artifacts.

Relationship

ACTION

Action.

Use transform property of target to look up pose for owner from an Action.

ARMATURE

Armature.

Apply weight-blended transformation from multiple bones like the Armature modifier.

CHILD_OF

Child Of.

Make target the ‘detachable’ parent of owner.

FLOOR

Floor.

Use position (and optionally rotation) of target to define a ‘wall’ or ‘floor’ that the owner can not cross.

FOLLOW_PATH

Follow Path.

Use to animate an object/bone following a path.

PIVOT

Pivot.

Change pivot point for transforms (buggy).

SHRINKWRAP

Shrinkwrap.

Restrict movements to surface of target mesh.