https://docs.unity3d.com/Packages/com.unity.timeline@1.3/manual/index.html
https://learn.unity.com/tutorial/timeline
Timline overview
Using the Timeline window
Timeline window
Timeline Inspector
Playable Director Component
Timeline Glossary
animatable property: A property belonging to a GameObject, or belonging to a component added to a GameObject, that can have different values over time
animation: The reuslt of adding two different keys, at two different times, for the same animatable property
animation curve: The curve drawn between keys set for the same animatable property, at different farmes or seconds. The position of the tangents and the selected interpolation mode for each key determines the shap of the animation curve
binding or Track binding: Refers to the link between Timeline Asset tracks and the GameObjects in the scene. When you link a GameObject to a track, the track animates the GameObject. Bindings are stored as part of the Timeline instance.
原文：https://www.cnblogs.com/revoid/p/12586623.html