@openusd-wasm/core

Core WebAssembly assets for the community OpenUSD pxr bindings.

This package mirrors the role of @ffmpeg/core: it does not provide the high-level API facade. It publishes the Emscripten JavaScript module and the Wasm binary:

dist/openusd_pxr_wasm.js
dist/openusd_pxr_wasm.wasm

Build the assets from the workspace root with an official OpenUSD source checkout:

pnpm build:core -- --openusd-source-dir /path/to/OpenUSD

Consumers normally use this package through @openusd-wasm/pxr.

import { PXR } from '@openusd-wasm/pxr'

const pxr = new PXR()
await pxr.load()

@openusd-wasm/core/urls is safe to use from browser bundles, including Next.js/Turbopack Client Components. When a bundler exposes emitted assets as internal file:///_next/... URLs, this entry converts them back to URLs under the current browser origin before @openusd-wasm/pxr loads the Emscripten runtime.

The core runtime is built with WebAssembly pthreads. Browser hosts must serve pages and assets with cross-origin isolation headers:

Cross-Origin-Opener-Policy: same-origin
Cross-Origin-Embedder-Policy: require-corp
Cross-Origin-Resource-Policy: same-origin