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[edit] Constraints Summary

Constraints are a way to restrict some object's movement. If the object is an Armature, then individual bone constraints can be placed on each bone.

• Constraints are arranged in a stack, and are executed in order of the stack. Therefore, a different stack order of the same set of constraints may have a different outcome.
• There are many types of constraints based on what is being constrained and how it is being constrained.
• The influence of constraints can be animated. Constraints on bones, when animated, are action-specific.