NVIDIA PhysX® is an open source, scalable, multi-platform physics simulation solution supporting a wide range of devices, from smartphones to high-end multicore CPUs and GPUs.

The powerful SDK brings high-performance and precision accuracy to industrial simulation use cases from traditional VFX and game development workflows, to high-fidelity robotics, medical simulation, and scientific visualization applications.

 Get PhysX In Omniverse   Get PhysX Cpu Source On Github

high-performance and accuracy to industrial simulation
PhysX is an open source SDK that includes Blast and Flow.

Experience Powerful, Flexible Simulation

Unified Solver

PhysX provides a wide range of new features including FEM soft body simulation, cloth, particles, and fluid simulation with two way coupled interaction under a unified solver framework.


PhysX offers a highly scalable simulation solution for gaming, robotics, VFX, and more. It provides a simulation that can be run on a wide range of platforms ranging from low-power mobile CPUs through to high-end GPUs, including a new GPU API targeting end-to-end GPU-based reinforcement learning.

Quality and Assurance

Through collision detection and the solver, PhysX offers simulation stability for more robust stacking and joints. PhysX also includes momentum conservation for the articulation system and gyroscopic forces in the rigid body system.

Physics Simulation SDK

NVIDIA PhysX core software developer kit (SDK) includes PhysX, Blast, and Flow.

 Get PhysX In Omniverse   Get PhysX Cpu Source On Github



PhysX is available in NVIDIA Omniverse and as a BSD3 open source release, including all CPU source code and GPU binaries.

PhysX Blast


The NVIDIA PhysX SDK includes Blast, a destruction and fracture library designed for performance, scalability, and flexibility.


Flow enables realistic combustible fluid, smoke, and fire simulations. Flow is part of the PhysX SDK.

NVIDIA PhysX SDK Features Overview

Implemented on:
Rigid Body Dynamics
Scene Query
Reduced Coordinate Articulations
Vehicle Dynamics
Character Controllers
Soft Body Dynamics (Finite Element Method)
PBD (liquid/cloth/inflatable/shape matching)
Custom Geometries
Blast - distributed with PhysX
Flow - distributed with PhysX

Key PhysX Features

Rigid Body Dynamics

Study the movement of multi-body interactions under external forces, such as gravity. PhysX provides industry-proven scalable rigid body simulation on both CPU and GPU.

 PhysX provides support for raycast, overlap and sweep queries

Scene Query

Perform spatial queries against the simulated world to permit perception and reasoning in a simulated environment. Combined with flexible filtering mechanisms, PhysX provides support for raycast, overlap, and sweep queries against the entire world or individual bodies.


Joints constrain the way bodies move relative to one another. PhysX provides a suite of common built-in joint types and supports custom joints through a flexible callback mechanism.

Reduced Coordinate Articulations

Reduced coordinate articulations provide a linear-time, guaranteed joint-error-free simulation of a tree of rigid bodies. PhysX's implementation closely matches analytical models.

Vehicle Dynamics

PhysX provides accurate and efficient simulation of vehicles, including tire, engine, clutch, transmission, and suspension models.

Character Controllers

PhysX provides a kinematic character controller that permits an avatar to navigate a simulated world. It supports rich interactions with both static and dynamically simulated bodies.

Soft Body Dynamics

Finite Element Method (FEM) soft bodies simulate measurable properties of hyperelastic materials to form an accurate and efficient model of elastic deformable bodies.

SDF Colliders

A new Signed Distance Field based collision representation allows PhysX to simulate non-convex shapes like gears and cams without convex decomposition.

Position Based Dynamics

Position Based Dynamics provide a flexible framework for simulating a wide range of phenomena including liquids, granular materials, cloth, rigid bodies, deformable bodies, and more. It is used extensively in the VFX industry.

Custom Geometry

PhysX provides a wide range of built-in geometries and, additionally, provides a flexible callback mechanism to allow the application to introduce their own geometry types into the simulation.

Industrial Applications for Features

Autonomous Vehicles Game Development HPC Visualization Industrial Manufacturing Industrial Applications Robotics VFX and Media
Rigid Body Dynamics (TGS or PGS solver)
Scene Query
Vehicle Dynamics
Character Controllers
Soft Body Dynamics
Position Based Dynamics

See PhysX in Action

Latest PhysX News

NVIDIA Omniverse

NVIDIA Omniverse™ is a scalable, multi-GPU real-time reference development platform for building and operating metaverse applications. Creators, designers, researchers, and engineers can accelerate their workflows with one-click interoperability between leading software tools in a true-to-reality shared virtual world.

Physically Accurate Simulation

Omniverse is a platform built from the ground up to be physically based and integrated with core technologies including MDL for materials, PhysX, Flow, and Blast for physics, and RTX technology for real time ray and path tracing. Omniverse features several core apps tailored to accelerate specific workflows.

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Develop Tools on Omniverse

Unlike monolithic development platforms, Omniverse was designed to be easily extensible and customizable with a modular development framework. Developers can easily build extensions, apps and microservices using Omniverse Kit.

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Try PhysX today in NVIDIA Omniverse

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