AVAL

Technical preview

Introducing AVAL

A new open-source format for interactive video on the web, with a built-in state machine, frame-accurate transitions, and packed-alpha transparency.

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Key features

Deterministic state graph
Package named states, authored triggers, and latest-wins routing in the asset.
Frame-accurate routes
Start transitions on authored content frames using portals, finishes, cuts, and reversals.
Seekless loops
Keep the decoder timeline moving forward across loop seams instead of seeking.
Packed-alpha transparency
Composite transparent prerendered motion with a packed-alpha WebGL2 renderer.
Web-native runtime
Decode with WebCodecs and present with WebGL2, without a mandatory WASM runtime.
Progressive fallback
Keep host-owned fallback markup available for unsupported or reduced-motion contexts.