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

Download the skill as a ZIP:
https://autogineer.com/agent-skills/nvidia/omniverse-realtime-viewer/download

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

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

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.
Resolve the selected libraries through references/dependencies/README.md. Preserve the project's manifest unless an upgrade is requested.
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.
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.
Validate the actual delivery path with references/validation.md. A browser screenshot does not validate a native window or a different transport.

Architecture

Owner	Responsibility
Viewer runtime	Own the live OVStage, publication clock, OVRTX renderer, scene changes, and render stepping.
UI and input adapter	Display frames and copied app state; send user intent to the runtime owner.
Storage/query/simulation workers	Perform their assigned work and return results through the selected integration boundary.
Delivery adapter	Present 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

ATTRIBUTION.mdAdded by AutoGineer943 B
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references/viewer-feedback-status/README.md

Viewer Feedback And Status

Triggers

Use this skill for loading state, stream status, connection health, offline, lagged, reconnecting, error banner, warning, toast, status tag, empty state, disabled controls, destructive warning, or operation progress.

Use this with streaming-client, streaming-lifecycle, streaming-messages, stage-management, and viewer-control-patterns.

Feedback Scope

Choose feedback by the scope of the condition:

Scope	Pattern	Examples
Workspace/global	Banner or header/footer status	Backend unavailable, auth required, active stream offline.
View/panel	Inline alert, placeholder, panel overlay	Stage tree failed, no assets, properties loading.
Item	Status tag or row message	Asset missing, prim hidden, upload failed.
Transient success	Toast or short-lived status	Settings saved, screenshot captured.
Blocking decision	Dialog	Delete, overwrite, reset, discard unsaved edits.

Assign severity by consequence:

Severity	Use when
Info	Context or neutral state; no action required.
Success	Operation completed.
Warning	The user can continue, but risk or degraded behavior exists.
Error	Something failed or must be corrected.

Always pair color with text. Color-only status is not sufficient.

Stream Health Model

Use one application-level stream status signal. Components subscribe to it; they do not poll independently.

State	Meaning	User implication
Connecting	Session is starting or reconnecting.	Viewport may be blank; commands may queue or no-op.
Live	Frames are current and commands can be visually verified.	Normal operation.
Lagged	Connection exists but visual feedback is delayed.	Edits may apply before the user can see them.
Offline	Stream disconnected or no frames are arriving.	User is working without visual confirmation.
Failed	Connection or backend setup failed.	User needs corrective action or diagnostics.

Suggested placements:

Header or footer: compact persistent status visible from anywhere.
Viewport overlay: local status in the surface affected by stream health.
Panel-level alerts: only when the panel's own data operation failed.

Do not gate every tool panel on stream health. The outliner and inspector can remain useful if their data path is still available. Disable only actions that truly cannot complete.

Loading States

Situation	Pattern
Known progress, such as upload or staged import	Progress bar with label.
Unknown duration, such as reconnect or query	Spinner or skeleton in the affected panel.
Long renderer/shader warmup	Persistent status text with phase label and logs/diagnostics path when available.
Empty data set	Placeholder, not spinner.

Clear stale content before loading replacement scene data if keeping it visible could mislead the user. For expensive stage reloads, show the previous scene only when the app explicitly labels it as stale or still-active.

Destructive And Blind-Edit Warnings

Classify actions by consequence:

Incremental/reversible: numeric settings, camera changes, selection, AOV changes. Do not interrupt; show status and allow reset/undo where available.
Structural/destructive: delete prim, clear stage, reset settings, overwrite file, discard changes, disconnect active collaboration. Confirm with a dialog.

When stream state is Lagged or Offline, include current status in destructive confirmations so the user understands they may not visually verify the result immediately.

Dialog content should include:

Action name.
Plain-language consequence.
Current stream/session status when relevant.
Cancel action and confirm action.
Destructive styling for irreversible confirm actions.

Users may dismiss the current stream-degradation notice until the stream returns to Live. Keep the current stream status visible, and retain confirmation dialogs for destructive actions even while that notice is dismissed.

Disabled State Rules

Disabled controls should have an understandable reason available nearby or on hover/focus.
Prefer keeping controls enabled with recoverable error feedback when a command can be attempted safely.
Never hide a control solely because a backend is temporarily disconnected if hiding it would make recovery harder.
Re-enable controls from a single state transition path; avoid split flags such as isLoading, isDisabled, and isOffline fighting each other.

Validation

Before finishing UI status work, test:

Initial no-stage state.
Connecting, Live, Lagged/Offline, and Failed stream/session states where supported.
Stage-load progress and stage-load failure.
Selection cleared and selected-object invalid after scene switch.
Destructive confirmation with normal and degraded stream status.
Narrow viewport layout with status text visible and not overlapping controls.

See also: streaming-lifecycle, streaming-client, troubleshooting, viewer-control-patterns, stage-management.

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

2026-11-09

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

From the author

AutoGineer summary

What it does

When to use it

Advantages

Usage examples

Install

Documentation by NVIDIA Omniverse

Omniverse Realtime Viewer

Start With The App

Architecture

Add Capabilities As Needed

Solid Modeling: Upstream First

GPU Processing And Stylized Viewers

XR Viewers

Files

references/viewer-feedback-status/README.md

Viewer Feedback And Status

Triggers

Feedback Scope

Stream Health Model

Loading States

Destructive And Blind-Edit Warnings

Disabled State Rules

Validation

Requirements and compatibility

Security

Attribution and licence

Related skills

Setup TS Deep Modules

To Spec

Improve Codebase Architecture

Domain Modeling

Codebase Design

Prototype

Download ZIP