Generated banner for Omniverse Realtime Viewer
Generated logo for Omniverse Realtime Viewer

Omniverse Realtime Viewer

NVIDIAOfficialCreated by NVIDIA Omniverse

  • Skill
  • Tool integration
  • Software development
  • Apache-2.0
  • Medium risk

From the author

Use as the top-level router for Omniverse Realtime Viewer USD apps, XR delivery, SPG GPU processing, stylized rendering, and focused viewer reference documents.
— the description by NVIDIA Omniverse

AutoGineer summary

Written by AutoGineer from the skill’s own files, not by the author

The Omniverse Realtime Viewer skill acts as a central routing and architectural framework for developing USD-based 3D viewer applications. It provides a structured approach to composing rendering, scene state, and delivery mechanisms, ensuring that developers can integrate OVRTX rendering, OVStage scene management, and various UI or streaming adapters effectively. The skill emphasizes a modular architecture where the viewer runtime, UI/input adapters, and delivery systems are decoupled, allowing for consistent behavior across local and streamed environments.

What it does

  • Provides a routing architecture for USD viewer apps, XR delivery, and GPU-accelerated rendering.
  • Defines the separation of concerns between viewer runtime, UI adapters, and delivery systems.
  • Offers guidance on integrating OVRTX for high-fidelity 3D rendering.
  • Establishes conventions for camera interaction, scene state management, and input handling.
  • Supports the implementation of specialized features like stylized rendering and CAE/CFD visualization.
  • Provides protocols for agent-to-UI communication and scene control.

When to use it

  • When starting the development of a new USD-based realtime viewer application.
  • When integrating advanced rendering features like stylized visualization or AOV switching.
  • When building XR or spatial editing capabilities into an existing Omniverse application.
  • When you need to standardize the architecture for local and streamed viewer deployments.
  • When implementing chat-driven scene control or agent-based inspection of a 3D scene.

Advantages

  • Promotes a clean, modular architecture that separates rendering logic from UI and transport.
  • Ensures consistent behavior across different delivery methods, such as local windows or WebRTC streaming.
  • Provides clear paths for extending functionality without disrupting the core viewer runtime.
  • Facilitates the integration of complex simulation and visualization data into the viewer.
  • Standardizes conventions for scene state, selection, and camera control.

Usage examples

“How do I set up a basic USD viewer application using the Omniverse Realtime Viewer architecture?”
The agent will guide you to start with the viewer app reference, resolve dependencies, and implement the core runtime owner to manage the OVStage and OVRTX renderer.
“I need to add stylized rendering to my existing viewer. Where should I start?”
The agent will direct you to the stylized visualization references to implement the required USD/Lua/CUDA nodes within your existing runtime owner.
“How can I enable an AI agent to control the viewer scene?”
The agent will point to the A2UI Scene Copilot reference to implement an operation interface that allows the agent to send commands through the existing runtime owner.
“How do I switch between different render outputs like beauty and depth in my viewer?”
The agent will explain how to use the AOV switching reference to map RenderVars and update the RenderProduct's orderedVars through the runtime owner.

Install

  1. Download the skill as a ZIP:

    https://autogineer.com/agent-skills/nvidia/omniverse-realtime-viewer/download
  2. Unzip it into the cross-client skills folder of your project:

    mkdir -p .agents/skills && unzip omniverse-realtime-viewer.zip -d .agents/skills

Documentation by NVIDIA Omniverse

<!-- SPDX-FileCopyrightText: Copyright (c) 2026 NVIDIA CORPORATION & AFFILIATES. All rights reserved. -->

<!-- SPDX-License-Identifier: Apache-2.0 -->

Omniverse Realtime Viewer

Build responsive USD viewers by composing OVRTX rendering, OVStage scene state, and the delivery/UI libraries appropriate to the app. Use this package for viewer architecture and interaction; use each selected SDK's upstream guidance for installation and exact release-specific APIs.

Start With The App

  1. When delivery is explicit, select its recipe through references/routing.md and follow its current phase. Otherwise start with references/usd-viewer-app/README.md. For an existing app, keep its architecture and read only the references for the requested change. Broad app, conventions and UI catalogs are lookups as needed.

  2. Resolve the selected libraries through references/dependencies/README.md. Preserve the project's manifest unless an upgrade is requested.

  3. Build a working frame and camera interaction in the chosen shell, then add the requested capabilities. Read references/conventions.md for shared input, camera, selection, and protocol conventions.

  4. Use references/viewer-ux-workflow/README.md for broader interface design. Loading, selection feedback, errors, and input responsiveness belong in the first working app, alongside rendering.

  5. Validate the actual delivery path with references/validation.md. A browser screenshot does not validate a native window or a different transport.

Architecture

OwnerResponsibility
Viewer runtimeOwn the live OVStage, publication clock, OVRTX renderer, scene changes, and render stepping.
UI and input adapterDisplay frames and copied app state; send user intent to the runtime owner.
Storage/query/simulation workersPerform their assigned work and return results through the selected integration boundary.
Delivery adapterPresent locally or stream through ovstream; respect frame ownership and backpressure.

Use OVRTX for USD/3D rendering. Browser apps display its WebRTC video; local apps present its output through their native shell. A missing GPU means rendering is unverified, not a reason to substitute a browser 3D renderer.

Keep viewer cameras, settings, effects, and transient edits in app-owned session or runtime state so the source USD stays intact. Serialize scene mutation and render stepping through the runtime owner. Read references/ovstage-ovrtx-integration/README.md for that loop, then the population or data-plane references when implementing scene loading or attribute writes.

Keep expensive loading and metadata work off the UI and render threads. Keep transport details behind a delivery adapter so camera, selection, properties, and loading state can be reused across local and streamed shells.

Add Capabilities As Needed

Use references/routing.md to select camera/picking, scene management, render settings, cloud assets, simulation, editor tools, deployment, or CAE/CFD visualization. Read the selected capability's implementation flow and its linked contract; the full reference catalog is not a prerequisite for a first frame.

For simulation, use the routing reference's Simulation Ecosystem section plus references/realtime-sim-integration/README.md. For UI-driven forces or control, add references/interaction-round-trip/README.md.

For example scenes, use references/usd-sample-data/README.md. When a runtime failure needs diagnosis, use references/troubleshooting/README.md and the selected SDK's matching release guidance before changing the architecture.

Solid Modeling: Upstream First

For usd-brep, exact BRep, solid modeling, kernel failures, CAD topology, or BrepArray questions, first read references/dependencies/README.md → USD BRep. Follow the owning repository's current agent guidance, skills, operation docs, and package API before selecting local integration references. Discover the upstream router rather than assuming skill names or directory layouts remain fixed. Upstream owns modeling semantics, schema rules, tuning, and diagnostics; this package owns OVRTX display, worker handoff, selection mapping, and publication timing.

GPU Processing And Stylized Viewers

For custom GPU processing, chained outputs and lens sampling, read references/spg-processing/README.md. For toon, ink, technical/X-Ray styles, geometry strokes or full wireframe, continue to references/stylized-visualization/implementation.md. Its USD/Lua/CUDA starting node and geometry/depth/composite build sequence work with the selected viewer recipe; use references/stylized-visualization/style-recipes.md for the preset math and references/stylized-visualization/README.md for supporting contracts. Implement the result inside the existing OVRTX/runtime owner and deliver the published processed output. These instructions do not require a sample checkout or a prior stylized-rendering implementation.

For an optional usd-brep geometry source, first read references/dependencies/README.md → USD BRep and the owning repository's current agent guidance, skills, and operation docs; then read references/stylized-visualization/usd-brep-source.md for the display boundary.

XR Viewers

For headsets, immersive viewers, or spatial editors, start with references/xr-viewer-recipe/README.md. Resolve SDK setup and contracts through references/dependencies/ovxr.md; the library owns OpenXR lifecycle and frame submission. For controllers, hands, navigation, or scene tools, add references/xr-spatial-input/README.md and references/ovxr-python-interactions/README.md. For projection-integrated UI, read references/ovxr-composition-ui/README.md and references/ovxr-composition-ui-validation/README.md.

Files

references/ovwidgets-editor-shell/README.md

ovui Full Editor

Triggers

Use this reference for the complete USD Viewer editor: docking, RTX viewport, stage browser, property inspector, transform tools, undo/redo, themes, content browser, and layer stack.

Use ovui_widgets.app.application.Application for the complete editor. For a minimal single-window shell, read local-viewer. For custom controls and panels, add viewer-control-patterns and viewer-data-view-patterns.

Start With The Selected Provider

Resolve the UI, widgets, and adapters through references/dependencies before imports. Read the matching upstream AGENTS.md and application/widget skills; they own exact bootstrap, provider, and adapter contracts. Discover the current composition recipe and source map from that upstream router before writing the app. Verify the imports and calls below against the resolved package's exports, examples, and signatures; adapt them when upstream changes.

Launch the stock editor with an optional scene:

from ovui_widgets.app.application import Application

Application().run(usd_path="path/to/stage.usd")

The equivalent module launch is python -m ovui_widgets.app path/to/stage.usd; the console entry point is ovui-widgets.

Choose the OpenUSD or native OVStage provider explicitly from its supported runtime contract. With both adapters installed, the stock application defaults to OpenUSD; OVUI_DATA_ADAPTER_PROVIDER=ovstage selects the native provider. The OpenUSD editor's verified in-process USD setup is distinct from the default isolated query workers used by lightweight viewers. Do not copy custom USD build paths or worker package pins into this editor's environment.

Compose Through Widgets And Adapters

Widgets live in ovui_widgets; adapter interfaces live in ovui_data_adapters.common, and concrete OpenUSD adapters are exported from ovui_data_adapters.openusd. Confirm these namespaces in the current upstream source map before composing widgets.

SurfaceCurrent import
Applicationovui_widgets.app.application.Application
RTX viewportovui_widgets.viewport.viewport_widget.ViewportWidget
Stage browserovui_widgets.stage.widget.stage_widget.StageWidget, ovui_widgets.stage.window.StageWindow
Property inspectorovui_widgets.property.window.PropertyWindow
Content browserovui_widgets.content.ContentBrowserWindow
Layer panelovui_widgets.layers.LayerWindow
OpenUSD rendering and scene stateovui_data_adapters.openusd.OvRtxRendererAdapter, UsdStageAdapter, UsdPropertyAdapter, UsdTransformAdapter, UsdLayerStackAdapter

Prefer the stock Application for complete editor lifecycle. Its provider session opens the scene and supplies adapters; its file-open flow prepares or reuses the renderer before activating the replacement, clears undo state, and wires the panels. Do not replace this with a second stage owner or a fresh renderer on every file open.

For individual widgets, follow the upstream composition recipe:

  1. Initialize the shell and register the shared settings, scheduler, recent-file, selection, and undo services before building panels.

  2. Use one SelectionBus for viewport, tree, and inspector. Set its instance before constructing PropertyWindow.

  3. Open the scene through the selected provider's supported lifecycle. For OpenUSD embedding, use the upstream renderer construction/import order.

  4. Supply the viewport's renderer, bus, services, and stage adapter provider; attach transform/stage adapters and the undo manager. Wire the property adapter factory and stage adapter into the inspector.

  5. Let the viewport render through its frame-clock contract. Retire scene-bound callbacks and services at replacement or shutdown.

The upstream source map supplies constructors and required calls; a bare ViewportWidget(renderer=...) does not constitute complete editor wiring. Keep lazy frame builders limited to widget creation; callback state must exist before selection, attach, or adapter callbacks run.

Interaction And Validation

Route pointer gestures through viewer-input-routing and give transform tools first refusal. Keep undoable mutations behind the provider's adapters and command stack. Use prim-transform-safety for custom live transforms.

Validate the actual desktop or supported headless delivery path, using upstream inspector guidance for real mouse/keyboard interaction. Capture:

  • a nonblank OVRTX frame, viewport resize, and camera navigation;

  • selection synchronized across tree, viewport, and inspector, including outline changes while the camera stays stationary;

  • create, undo, redo, and a subsequent edit of the created prim;

  • Delete and Backspace in a numeric property field without deleting the prim;

  • scene replacement, cleared stale selection, reconnect when used, and shutdown.

Let the provider adapter own selection-outline activation and renderer update requirements. Implement selection through its current public API and keep the render loop advancing so changes appear even while the camera is stationary. Use the upstream keyboard-focus contract so text editing consumes Delete and Backspace before scene-level commands. Confirm scene replacement and shutdown release the provider's renderer, image resources, and scene-bound callbacks.

If the renderer fails, surface the error and preserve usable non-render panels; a mock renderer or blank viewport does not validate the viewer.

Requirements and compatibility

Works with: Claude Code, Claude apps, OpenAI Codex, GitHub Copilot, Cursor, Gemini CLI, Kiro, OpenCode, Goose, Amp, Roo Code, JetBrains Junie, Factory Droid, Devin (ex-Windsurf), Mistral Vibe, OpenHands, Letta

“Works with” means the tool reads the open Agent Skills format; a skill written for one tool may use features others lack.

Needs: Needs Python, Needs Node.js

The author says: Orchestrator skill. Downstream focused references may require NVIDIA GPUs, ovrtx, ovstream, ovui, OpenUSD, Python, Node/React, Tauri, Electron, C++, or cloud GPU deployment access depending on the selected viewer path.

Security

What our scanner noticed· Medium risk

  • Large base64-encoded blobs
  • Instructions that use the network

A static scan is not a guarantee. Skills are third-party content: review a skill before you let an agent use it.

Attribution and licence

Created by
NVIDIA Omniverse
Publisher
NVIDIA (Official)
Source
NVIDIA/skills · skills/omniverse-realtime-viewer · commit fce3cca
Licence
Apache License 2.0 (redistribution allowed)
  • LICENSE (added by AutoGineer from LICENSE-APACHE)
  • ATTRIBUTION.md (written by AutoGineer)
Synced

AutoGineer is not affiliated with or endorsed by NVIDIA Omniverse or NVIDIA.

Download ZIP

The ZIP holds the skill’s files, its licence files and an ATTRIBUTION.md. Download omniverse-realtime-viewer.zip