Since animation-constraint blending lets
you transform the constrained channels of a driven object, you must
lock the constrained channels that you want strictly influenced
by the target objects.
After transforming a constrained object,
you can retain its new translation, rotation, and/or scaling by
reapplying Maintain Offset from the Modify
Constrained Axis Options window. This prevents the constrained object
from snapping back to its original translation, rotation, and/or
scaling when its target objects are transformed.
To blend animation and constraints on
the same object
Animate and constrain the same object.
Edit and key the pairBlendWeight attribute
to animate the amount of influence the constraint and keyframe animation
have on their target object. See
Blend Weights in the Channel Box.
To blend set driven key animation with
constraints
Apply set driven keys and constraints
to the same object.
Edit and key the Blend
ConstraintTypen channel on the constrained/driven object’s
transform node to animate the amount of influence the constraint
and driver have on their constrained/driven object.