Architecture Overview

bevy_alight_motion is built on a data-driven architecture that maps Alight Motion's XML schema to Bevy's ECS.

Core Pipeline

1. Loading: The .amproj (a ZIP file) is decompressed. The scene.xml is parsed into a Rust schema.
2. Processing: Media assets (images, fonts) are registered with Bevy's AssetServer.
3. Spawning: Layers are converted into Bevy entities. Parent-child relationships are established using commands.spawn().set_parent().
4. Animation: A dedicated system interpolates keyframes every frame and updates Transform and material properties.
5. Rendering: Custom shaders handle specialized AM effects like Wipe, Stretch, and SDF shapes.