USD is a system for authoring, composing, and reading hierarchically organized scene description.
USD comprises a set of modules that scalably encode and interchange static and time-sampled 3D geometry and shading data between Digital Content Creation applications. Domain-specific schema modules define the geometry and shading encoding atop USD's domain-agnostic core.
Continue reading about USD's purpose and overall architecture, or jump directly into the core of the Usd API.
USD is distributed under a modified Apache 2.0 license