UsdUtils: USD Utilities

Overview

UsdUtils contains utility classes and functions for managing, inspecting, editing and creating USD assets. The high-level grouping of classes and functions is as follows:

• Authoring provides functionality for copying metadata between layers.

• Coalescing diagnostic delegate provides a utility to aggregate warnings and statuses emitted from Tf's diagnostic management system.

• Conditionally abort diagnostic delegate provides a utility that can be used to abort operations for a non fatal USD error or warning emitted from Tf's diagnostic management system by operating on inclusion/exclusion rules defined for this delegate.

• Stitching provides functionality for merging layers together as well as
  generating value clips from sets of layers (see stitchClips).

• Dependency analysis and asset packaging provides functionality for extracting the external dependencies (i.e. references, payloads, and sublayers) of a given layer. See UsdUtilsExtractExternalReferences and
  UsdUtilsCreateNewUsdzPackage

• Introspection provides functionality for understanding various characteristics of a UsdStage including memory usage, prim counts, prototype counts and more.

• Pipeline provides utilities for establishing pipeline conventions.

• StageCache provides a class, UsdUtilsStageCache for managing a singleton instance UsdStageCache to be shared amongst various clients.

• complianceChecker.py provides a set of Python classes and methods used for checking the compliance of a given USD asset or USDZ package.