NVIDIA Omniverse™ Platform




NVIDIA Omniverse is a powerful, multi-GPU, real-time simulation and collaboration platform for 3D production pipelines based on Pixar's Universal Scene Description and NVIDIA RTX™.


Omniverse aims for universal interoperability across different applications and 3D ecosystem vendors. It provides efficient real-time scene updates and is based on open-standards and protocols. The Omniverse Platform is designed to act as a hub, enabling new capabilities to be exposed as micro-services to any connected clients and applications.


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Live collaboration between 3D applications and users

Collaborate live between your favorite applications using USD and MDL.

Real-time multi-GPU Ray Traced Viewport

Enable real-time high quality multi-GPU ray tracing and path tracing on USD content.

Simulation

High performance simulation of complex 3D physical worlds leveraging the latest in NVIDIA technology.






Omniverse consists of 5 key components: Omniverse Connect, Nucleus, Kit, Simulation and RTX. These components along with connected third party digital content creation (DCC) tools and additional connected Omniverse microservices make up the full Omniverse ecosystem.







Omniverse Connect libraries are distributed as plugins that enable client applications to connect to Nucleus and to publish and subscribe to individual assets and full worlds.

With any needed synchronization in place, a DCC plugin will use the Omniverse Connect libraries to apply externally received updates and publish internally generated changes as necessary.

As the application makes changes to its USD representation of the scene, Omniverse Connect keeps track of all the local changes since the last publishing event. When requested by the application, the Omniverse Connect libraries will construct a file-by-file set of differences and publish them to Nucleus where they will then be forwarded to all subscribers.

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Omniverse Nucleus offers a set of fundamental services that enables a variety of client applications, renderers, and microservices to share and modify representations of virtual worlds.

Nucleus operates under a publish/subscribe model. Subject to access controls, Omniverse clients can publish modifications to digital assets and virtual worlds to the Nucleus Database (DB) or subscribe to their changes. Changes are transmitted in real-time between connected applications. Digital assets can include geometry, lights, materials, textures and other data that describe virtual worlds and their evolution through time.



The fundamental representation of assets in Omniverse is Pixar’s open-source Universal Scene Description (USD). USD is much more than a file format, it is a rich scene representation with an API that enables complex property inheritance, instancing, layering, lazy loading and a wide variety of other key features. Omniverse uses USD for interchange through the Nucleus DB service.



Materials in Omniverse are represented by NVIDIA’s open-source MDL (Material Definition Library). NVIDIA has developed a custom schema in USD to represent material assignments and parameters allowing for easy interchange between different application-specific material definitions. This standard definition enables materials to look similar if not identical across multiple applications.


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Omniverse Kit is a toolkit for building native Omniverse applications and microservices. It is built on a base framework that provides a wide variety of functionality through a set of light-weight extensions. These stand-alone extensions are plugins that are authored in Python or C++.

Kit is designed to be the premiere foundation for new Omniverse-connected tools and microservices. It can be run headless to create a microservice, or with a UI. The UI Application can be fully written using the UI engine which enables it to be fully customized. The Omniverse UI system uses Dear Imgui while providing a rich Python and scripting experience unique to Omniverse Kit.


Omniverse Kit Interface

Kit comes with a default UI that allows it to act as a USD inspector, editor, layout tool, and viewer. Customized UI’s may look nothing like the default. NVIDIA expects to ship sets of customizations (as "Experiences") that are targeted to specific industries and user communities.



Omniverse Kit RTX Viewport (right) being used to live render changes made in Autodesk 3ds Max (left)

Kit-based applications built with UI can provide rendering windows. The standard rendering interface for applications using USD is part of the USD distribution and known as Hydra. In upcoming releases, Hydra-compliant renderer can be connected to a Kit rendering window. Available Hydra-compliant renderers include NVIDIA’s Omniverse RTX, AMD’s ProRender and Intel’s OspRay.


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Simulation in Omniverse is provided by a collection of NVIDIA technologies as plug-ins or microservices to Omniverse Kit.

One of the first simulation tools to be distributed as part of Omniverse is NVIDIA’s open-source physical simulator PhysX, widely used in computer games. The objects that participate in the simulation, their properties, any constraints, and any solver parameters are specified in a custom USD schema. Kit provides features for editing the simulation set-up, starting and stopping it, and adjusting all the parameters.

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Flow is an Eulerian fluid simulation for smoke/fire, leveraging a sparse voxel grid for unbounded simulation domain.

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Omniverse supports renderers compliant with Pixar’s Hydra architecture, one of which is the new Omniverse RTX viewport which exploits hardware RT cores in Turing and future-generation NVIDIA architectures to do real-time hardware-accelerated ray tracing and path-tracing.

The renderer does not rasterize before ray-tracing, which allows for very large scenes to be handled in real-time. It has two modes: traditional ray tracing for fast performance and path tracing for the highest quality results.

Omniverse RTX natively supports multiple GPUs in a single system and will soon support interactive rendering across multiple systems.

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Omniverse Experiences


NVIDIA Omniverse can now connect to numerous content creation applications and NVIDIA has created “Experiences” to showcase its capabilities in different use cases. These Experiences are built using Omniverse Kit and although quite useful as they stand, they can serve as a starting point for developers to build-upon and extend or create their own. These experiences are available as samples to technical artists and developers and will continually be gaining new features and capabilities.



NVIDIA Omniverse - AEC Experience

The Omniverse AEC Experience is built on the Omniverse platform and focuses on concept design, visualization, and review needs for professionals in architecture, engineering, and construction. Sign up for the early access program below.


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NVIDIA Omniverse - Isaac Sim

The Isaac Sim 2020.1 Preview provides examples from the Leonardo project to explore major features of our next-generation simulation platform.


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More experiences in development...



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Omniverse in-action



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NVIDIA Developer Blog

Isaac Sim 2020.1 Preview


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Looking to evaluate the Omniverse platform?

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