Universal Scene Description

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."

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.

USD & USDA files are text files and begin with the ascii USDC are binary files and begin with the hex values or   in ascii.

Sample Files

 * USDA sample file
 * USDZ sample files