How are the moving parts of the model made?

Question

Unity

Tell me how the moving parts of the model are made that react to physics. For example, some kind of keychain on a weapon that reacts to the character's walking.

Answer 1

Ragdoll reacts to physics, but specifically, the keychain is rather an animation.

Answer 2

The key fob is made a separate model, and physics is superimposed on it.

Answer 3

1. The unit has a built-in physics engine. Any object with a rigid body automatically supports physics.
2. Animation reactions are usually recorded as part of the animation.
3. Also in the unit there is built-in support for rag doll.
4. Another unit right out of the box supports various joints that simulate physical connections.

Answer 4

Just attach collider + rigidbody and that's it