Comparison

How does @cinevva/usdjs compare to other USD implementations?

Our Position

We're building a reference-quality USD implementation in pure TypeScript. The goal is spec-correct behavior, verified against Pixar's source code.

Most browser USD solutions fall into two camps: WASM ports (full-featured but complex to deploy) or simple loaders (easy but incomplete). We're aiming for a third option: native JavaScript with full correctness.

Comparison

Approach	Browser	Native JS	USDC	Composition	Notes
Pixar OpenUSD	❌	❌	✅	✅	The reference. What we verify against.
WASM OpenUSD	✅	❌	✅	✅	Full-featured. Needs COOP/COEP headers.
TinyUSDZ	✅	❌	✅	⚠️	C++/WASM loader. Good for viewing.
Three.js USDLoader	✅	✅	⚠️	❌	Simple USDZ loading. Not a runtime.
@cinevva/usdjs	✅	✅	✅	🔄	Aiming for full parity. Pure TS.