Unity's Timeline
Use Unity's Timeline to create cinematic content, gameplay sequences, audio sequences, and complex particle effects.
Each cut-scene, cinematic, or gameplay sequence that you create with Unity's Timeline consists of a Timeline asset and a Timeline instance. The Timeline window creates and modifies Timeline assets and Timeline instances simultaneously.
The Timeline assets and instances topic provides details on the relationship between the Timeline window, Timeline assets, and Timeline instances.
The Timeline Workflows section provides basic steps on how to create Timeline assets and Timeline instances, record basic animation, animate humanoids, use Animation Override tracks, Sub-Timelines, and other Timeline features.
The Timeline Samples section provides a description of the samples included in the Timeline package.