USD, OpenUSD
Visualizer
USD USDZ Online Viewer
A simple web based USD and USDZ Online viewer (3D models - Universal Scene Description)
https://www.usdz-viewer.net/
Development
Pixar Universal Scene Description (USD)
Pixar USD is an easily extensible, open-source 3D scene description and file format for 3D content creation and interchange among different tools.
https://developer.nvidia.com/usd

Document
USD Home — Universal Scene Description 23.11 documentation
Learn
https://openusd.org/release/index.html
Universal Scene Description
Universal Scene Description (USD) is a framework for interchange of 3D computer graphics data. The framework focuses on collaboration, non-destructive editing, and enabling multiple views and opinions about graphics data.[1] USD is used in many industries including visual effects, architecture, design, robotics and CAD.[2] It is developed by Pixar and was first published as open source software in 2016, under a modified Apache license.[3] Pixar, Adobe, Apple, Autodesk, and NVIDIA, together with the Joint Development Foundation (JDF) of the Linux Foundation, announced the Alliance for OpenUSD (AOUSD) on August 1, 2023 to "promote the standardization, development, evolution, and growth of Pixar's Universal Scene Description technology."[4]
https://en.wikipedia.org/wiki/Universal_Scene_Description


Seonglae Cho