pxr.Usd
pxr module's module
Usd is the core client-facing module for authoring, composing, and reading Universal Scene Description. USD is designed to encode scalable, hierarchically organized, static and time-sampled data, for the primary purpose of interchanging and augmenting the data between cooperating Digital Content Creation applications.
Universal Scene Description: Usd : Universal Scene Description (Core)
USD の API における Core ライブラリに相当する module