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.

To get started, see the Quickstart.

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.

ovphysx 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 of contained functionality:

• Omni PhysX User Guide

• PhysX SDK Documentation

Table of Contents

Overview

• ovphysx Overview
• Developer Guide
• Changelog

Tutorials

• Quickstart
• Hello World: Load USD and Step
• Tensor Bindings: Read and Write Simulation Data
• Contact Binding: Reading Contact Forces
• Cloning: Replicate Environments
• Rendering Handoff
• PhysX Interop: Direct PhysX SDK Access

API Reference

• Python API Reference
• C API Reference

Legal

• Security