ovphysx

ovphysx is a self-contained library package offering the PhysX SDK and Omni PhysX capabilities behind a C API and corresponding Python bindings for inclusion in user applications. It loads USD scenes, runs simulation, and allows reading and writing simulation data with DLPack interoperability.

Note

Pre-release notice: ovphysx is pre-release software and not yet mature. Current limitations include a strict in-process USD requirement: ovphysx can only coexist with OpenUSD v25.11 that is non-monolithic, Python-enabled, and linked against oneTBB (in particular, ovphysx cannot be used together with usd-core in the same process today), and parts of the API are still being completed and may change before 1.0.

It packages the Omni PhysX runtime (providing in particular USD-aware simulation and tensorized data access) on top of the PhysX SDK. The dependency stack is: PhysX SDK → omni.physx (Omniverse integration) → ovphysx (standalone C/Python SDK).

The source repository of ovphysx can be found at NVIDIA-Omniverse/PhysX.

External references:

• Omni PhysX User Guide

• PhysX SDK Documentation

These documentation pages contain the following:

Overview

• ovphysx Overview
  • Relationship to PhysX SDK and Omni PhysX
  • Who This Is For
  • What You Can Do
  • Core Concepts
  • End-to-End Usage in Python
  • C/C++ SDK
  • Release and distribution
  • Versioning and compatibility
  • Runtime Warnings
  • PhysX SDK and Omni PhysX Documentation
  • Conclusion
• Developer Guide
  • Relationship and Consumption Model
  • Samples and Tutorials
  • Execution Model
  • Multi-Instance Support
  • Operation Indices and Polling
  • Threading
  • Ownership and Lifetimes
  • Dependency Management
  • Error Handling
  • GPU Warmup and Determinism
  • Scene Cloning
  • Logging

Tutorials

• SDK Quickstart
• Hello World: Load USD and Step
• Tensor Bindings: Read and Write Simulation Data
• Cloning: Replicate Environments
• Rendering Handoff

API Reference

• Python API Reference
• C API Reference

Legal

• Security