Read XCAF for USD / USDZ output
A XCAF-to-USD / USDZ workflow connects the XCAF reader to the USD / USDZ writer. Select the model items and output representation needed by the receiving application.
Read the native XCAF document with the OCCT storage interface matching its file type. Inspect document shapes, assembly occurrences and attributes before selecting the part of the document to exchange.
Prepare a USD scene from the imported geometry
Choose BRep or mesh geometry according to the actual shapes in the document and the destination. Resolve assembly placements and map supported names and colors. Native document storage can contain application information that another CAD or scene format does not represent.
Write USD, USDZ or USDA through the USD component. Map supported names, part placements and appearance into the scene. The component supports meshes, primitives, metadata, materials and animations, but this conversion can preserve only data actually available from the source or explicitly authored by the application.
Check the USD / USDZ result
Check occurrence placement separately from shared part geometry. Validate transferred labels and attributes, and keep the source XCAF document when application-specific data or edit structure needs to be retained.
Reopen the scene in the receiving USD application. Compare axis conventions, unit scale, hierarchy, repeated parts and material assignments. Review external resources or packaging for the chosen output variant; the retained CAD source remains the reference for precise modeling.
Discuss this conversion with the producing and receiving applications, representative files and required geometry and attributes. Compare the reader/writer catalog when a different representation is needed.