Motion engine

Rendering Animations with Rust and WebAssembly in the Browser Animation is judged by your worst frame, and JavaScript's garbage collector doesn't respect 16.7ms budgets. Why our animation runtime renders with Rust compiled to WebAssembly — and why the export matches the preview exactly.

Designing an Animation Format for AI: How .fmtion Enables LLM-Generated Animations Every animation tool has a file format. We built .fmtion — and designed it from day one for a world where AI generates your animations. Here's what we learned.

Building a Layered State Machine for Animation Eight state types. Nested components. Declarative event binding. Game-engine-grade animation state management running in the browser at 60fps.