Which of the following are valid principles of asset structure? Choose three.

Effective USD asset structure is guided by principles that ensure assets are efficient, maintainable, and easy for artists and developers to use. Legibility ensures the asset's purpose and layout are clear. Navigability means that components within the asset can be easily found and targeted. Modularity dictates that assets should be built from smaller, reusable, and overridable components, which is a core strength of USD's composition features. These principles lead to robust and scalable production pipelines.

B. Redundancy is the opposite of a good design principle; USD's composition arcs are designed to reduce data duplication and promote reuse.

E. Compressability is a desirable outcome of a well-structured asset and the chosen file format (e.g., .usdc), not a foundational principle of its logical organization.

1. Pixar, "The Art of Structuring USD Assets," OpenUSD Documentation. Accessed Oct 2023. This guide explicitly discusses the importance of creating assets that are "easy to read and navigate" (Legibility, Navigability) and "promote modularity."

2. Hooker, M., & Govindaraju, K., "Production-Ready USD," NVIDIA GTC 2021 Presentation S32537. The presentation emphasizes modularity and clear organization as key benefits and best practices for structuring USD assets in a production environment.