Universal Scene Description
Framework for 3D graphics interchange and collaboration.
Universal Scene Description (USD) is a 3D computer graphics data interchange framework built for collaboration, non-destructive editing, and supporting multiple perspectives or interpretations of graphics data. Its use spans visual effects, architecture, design, robotics, CAD, and rendering.
Pixar developed USD and first released it as open-source software in 2016 under a modified Apache license. On August 1, 2023, Pixar, Adobe, Apple, Autodesk, and Nvidia, alongside the Joint Development Foundation of the Linux Foundation, formed the Alliance for OpenUSD (AOUSD) to standardize, develop, and grow the technology.
The specification defines several file formats: `.usd` (ASCII or binary), `.usda` (ASCII), `.usdc` (binary), and `.usdz`—a zero-compression, unencrypted zip archive that can contain `.usd`, `.usda`, `.usdc`, `.png`, `.jpeg`, `.m4a`, `.mp3`, and `.wav` files.
USD is supported across a wide range of software. Adobe Substance 3D uses it. Apple’s Reality Composer Pro supports `.usdz` for RealityKit and visionOS, and SceneKit supports `.usdz` for 3D model interchange. Autodesk products include support: 3ds Max (version 2022 onward), Fusion 360 (export since April 2022), Inventor (version 2023), Maya (version 2022), and VRED Professional 2025 (`.usd`, `.usda`, `.usdc`, `.udsz`). Blender added USD import and export in version 4.0. Cinema 4D supports USD for import and export. DaVinci Resolve and Fusion both support importing USD. Houdini implements USD for format interchange and scene editing. MoonRay uses it. Nvidia supports USD in its Omniverse collaboration platform. Rhinoceros 3D has limited support in v8 WIP (not yet in the stable release). Unreal Engine supports `.usd`, `.usda`, `.usdc`, and `.usdz` with an importer still in beta. Vectorworks added USD export and import from Service Pack 3 of version 2023 onward.
Related formats include Alembic and glTF.
Quick Facts
- Extension
- .usd, .usda, .usdc, .usdz
- Developer
- Alliance for OpenUSD (AOUSD)
- Genre
- 3D computer graphics
Facts from the source article.
Lore & Background
Universal Scene Description was developed by Pixar and first published as open source software in 2016 under a modified Apache license. The framework was designed to address the challenges of large-scale 3D scene assembly and collaboration across different software tools. Its file formats include .usd (ASCII or binary), .usda (ASCII), .usdc (binary), and .usdz (a zero-compression, unencrypted zip archive that may contain usd, usda, usdc, png, jpeg, m4a, mp3, and wav files).
On 1 August 2023, Pixar, Adobe, Apple, Autodesk, and Nvidia, together with the Joint Development Foundation of the Linux Foundation, announced the Alliance for OpenUSD (AOUSD) to promote the standardization, development, evolution, and growth of Pixar's Universal Scene Description technology. The framework has seen broad adoption across the industry, with support from software such as Adobe Substance 3D, Apple's Reality Composer Pro and SceneKit, Autodesk 3ds Max, Fusion 360, Inventor, Maya, and VRED Professional, Blender, Cinema 4D, DaVinci Resolve, Fusion, Houdini, MoonRay, Nvidia Omniverse, Rhinoceros 3D (limited to v8 WIP), Unreal Engine (importer in beta), and Vectorworks 2023 Service Pack 3 onwards.
Reader's Guide
Universal Scene Description has become a foundational technology for 3D content creation and interchange, particularly in visual effects and animation pipelines. Its emphasis on non-destructive editing and multiple opinions allows artists and engineers to work on the same scene without overwriting each other's contributions, enabling complex collaborative workflows. The formation of the Alliance for OpenUSD in 2023 marked a significant step toward standardizing the format across the industry, with major software vendors committing to support it. USD's ability to represent layered scene descriptions, reference external assets, and package multiple file types into a single .usdz archive makes it versatile for both production and delivery. Its adoption extends beyond entertainment into architecture, design, robotics, CAD, and rendering, reflecting its utility as a universal interchange format. The framework's open-source nature and backing by a consortium of industry leaders suggest it will continue to evolve as a key standard for 3D data exchange.
Did You Know?
- The Alliance for OpenUSD was announced on 1 August 2023 by Pixar, Adobe, Apple, Autodesk, and Nvidia with the Joint Development Foundation of the Linux Foundation.
- Unreal Engine supports USD files, though its importer is in beta.
More in People
Elsewhere in Pixar
Spotted an error? Know more?
Reader corrections go straight into our review queue. Suggest an edit · How this site is sourced