URDF Loaders for Unity and THREE.js with example ATHLETE URDF Files open sourced from NASA JPL
APACHE-2.0 License
Utility for exporting THREE.js object trees as a URDF file
THREE.js Model Loader for delegating to the appropriate geometry loader and associated Web Component
Three.js loader for parsing Valve's Source Engine models
ThingJS 3D Engine (t3d) is a lightweight, web-first, and extendable 3D rendering library.
Some helpful glTF components for A-Frame
Develop and export WebXR experiences using Unity WebGL