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Why USD Is the Backbone of Reliable Simulation
June 8, 2025
Simulation without structure is just trial and error. To build repeatable, automatable, and trustworthy simulation pipelines, you need a common language—and that’s where Universal Scene Description (USD) comes in.
At Champion, USD isn’t just a file format. It’s the foundation of the entire simulation lifecycle.
🔄 From CAD Chaos to Structured Scenes
Most engineering data starts in CAD—STEP, IGES, JT, you name it. But raw geometry isn’t simulation-ready. It’s messy, unstructured, and missing key information.
Champion converts CAD into clean, structured USD with:
- 📦 Hierarchies that reflect real-world assemblies
- ⚙️ Physics metadata like mass, inertia, joint types
- 🎛️ Variants for swapping configurations
- 🧩 Schemas to track how parts interact
No more hand-editing scripts or fixing broken imports. Just a unified stage you can simulate, share, and version.
🧠 USD as Ground Truth for AI and Simulation
Unlike traditional 3D files, USD is readable by both humans and machines. That’s critical when integrating AI copilots or automation tools.
Champion injects rich metadata and structure so that:
- AI agents can reason over scenes (e.g., “What’s the heaviest movable part?”)
- Simulation scripts can be generated and validated programmatically
- Physics engines know exactly what to simulate—and how
Think of USD as the source of truth for your simulation pipeline.
🧪 Script Once, Simulate Anywhere
With USD as the base, Champion connects directly to NVIDIA’s simulation tools like Isaac Sim and PhysX.
Our platform enables:
- ✅ Automatic generation of Python scripts using USD Code
- 🔁 Reusable scenarios with variant switching
- 🧪 Multi-agent testing and test case generation
- 📊 Full version control of simulation states using Git + LFS
You don’t just run simulations. You build infrastructure.
🚀 Champion Makes Simulation Reproducible by Design
Too many teams treat simulation as a throwaway experiment. Champion changes that.
We use USD to create:
- A unified simulation format that spans CAD, physics, and AI
- A versioned, diffable scene graph you can trust and audit
- A launchpad for AI-driven design, testing, and optimization
🏁 Simulation is no longer just a test—it’s a system.
Build yours with Champion.