57.9 Scene States and Scenes🔗ℹ

A scene state is one complete snapshot of the top-level Visuals in a scene. It stores both an identity lookup table and a significant drawing order. Drawing order is back to front: later Visuals are painted over earlier Visuals. A group occupies one top-level entry; its children keep a separate back-to-front order inside the group.

A scene is an immutable timeline. A scene contains chronological play and wait clips. Each play clip stores its complete starting state and compiled animation endpoints. Sampling one frame does not depend on sampling any earlier frame.