Universal Scene Description

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File Format
Name Universal Scene Description
Ontology
Extension(s) .usd, .usda, .usdc

Universal Scene Description is a framework developed by Pixar. Also known as Crate files. "It is a system for encoding scalable, hierarchically organized, static and time-sampled data, for the primary purpose of interchanging and augmenting the data between cooperating digital content creation applications."[1][2]

File Identification

USDA files are plain ascii, while USDC are binary files. USDZ is a container for the format in a ZIP structure, used by Apple for 3D and AR applications[3].

Sample Files

References

  1. https://graphics.pixar.com/usd/docs/USD-Frequently-Asked-Questions.html
  2. https://en.wikipedia.org/wiki/Universal_Scene_Description
  3. https://medium.com/techinpieces/all-about-apples-new-usdz-file-format-simplified-12dff29f3fc0
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