(Unity provides the Animation modifier, which allows us to modify the physical animation. For example, there is a swing swinging back and forth in the scene. This swing only serves as a foil effect in the project, and it will not interact with other game objects. If the swing is also written with code to control it to swing back and forth, it will make a mountain out of a molehill. At this point, you can use the Animation modifier to end. However, it cannot modify FK and IK animation at present, so the variety of animation modifications in the modifier is still limited. If FK and IK animation can be modified in Unity one day, it will give awesome... As shown in the figure below, first create a game object in the Hierarchy view, and here I will create a cube cube object. Keep the mouse selected, and then select Window gt; in the Unity navigation menu bar; Animation will call out the animation modification window. This document includes the following annexes:)