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://mp-staging.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

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references/xr-spatial-input/gesture-arbitration.md

Gesture routing, capture and rearm

Use this optional editor mapping when the product calls for left-hand teleport, right-hand selection ray and fist manipulation. It avoids a palm-up menu that can conflict with the headset shell. Recognition comes from hand recognizers; aiming/filtering comes from gesture math. Other mappings must declare their own priorities rather than silently combining these gestures.

Separate state

Keep per-side observed pinch/fist/validity and suppression latches, plus:

Selection: none, scene prim, or panel handle (one authoritative target).
Pointer capture: source, hand, stable node, activation policy and generation.
Manipulation capture: source, hand, target, begin poses and filter state.
Teleport: armed, preview, grace, release-pending, or wait-both-open; gesture ID, aim/twist baseline and correlated query/preview state.

Do not encode all of these as one selected boolean. Evaluate one immutable snapshot, choose an owner, then emit semantic edges once. Process both hands even when only one owns the tool. Unknown/absent input is not a release or open hand.

Priority on each accepted update

Focus/session/stage/source invalidation cancels affected captures once. Physical-controller takeover cancels and suppresses hand tools until rearm.
An active teleport plus a fresh right pinch cancels teleport, consumes that pinch and any competing left selection edge, clears its query/target and enters wait-both-open. It must not also activate a panel or select a prim.
An uncancelled teleport in preview, grace or release-pending retains exclusive tool ownership. Process only its update/release/recovery and suppress new pointer/manipulation captures until it finishes. A fresh right fist while teleporting cannot start moving a previously selected panel.
Existing pointer or manipulation capture owns its full cycle, including a release outside the hit surface. Another held fist cannot steal it.
A selected panel handle plus an eligible fresh fist captures panel movement before scene manipulation; preserve initial panel/hand offset. A selected scene target may use the configured right-fist movement policy.
Outside those captures, right pinch enables the selection ray. A fresh left pinch while that ray is active selects/activates its current hit: visible UI first, then scene. Consume the left cycle so it cannot start teleport.
A fresh left pinch with no selection ray/capture begins teleport. Hold owns it until valid release or cancellation; brief aim miss does not transfer it to another tool. Right-hand absence alone does not cancel this left hold.

For a simultaneous pair of fresh pinches, evaluate right-ray eligibility before the left edge, so the pair selects instead of starting then cancelling teleport. Define this tie rule in tests. A left pinch selects a bar through the active selection ray; it is not an undocumented second standalone left-hand ray. Controller selection follows its profile mapping through the same UI/scene router rather than adopting the hand-button names.

Teleport transitions

State/event	Effect
Armed + eligible left begin	Capture gesture/bases; clear old target; preview
Preview + valid owner sample	Update aim/facing; issue or poll bounded current query
Preview + transient owner joint loss	Grace; retain visual/owner, invalidate commit permission
Grace + valid recovery before deadline	Resume with new query; do not reuse stale commit permission
Grace expiry or lifecycle loss	Cancel once; suppress until valid rearm
Preview + observed left release	Release-pending; use landing acceptance
Preview/grace/release-pending + cancel	Invalidate pending completions; wait-both-open
Wait-both-open + both valid and open in a current snapshot	Arm, without starting; require a subsequent fresh left edge

For this baseline, open means neither pinch nor grab latch active with required feature joints valid. Configure tracking grace in elapsed time plus a maximum sample count, and apply it to both active-invalid and inactive-hand loss if that is the chosen product policy. Focus/session loss is immediate, not tracking grace.

Selection and capture closure

Selecting prim B replaces A in one action and clears panel selection/drag. Selecting a bar replaces scene selection and stores that stable surface target. Pointer activation follows node policy: rows act on press once; buttons on release over the captured node; bars select without implicitly moving.

After a manipulation ends, an already-closed non-owner must open before it can start. Reacquisition of a missing closed hand cannot synthesize a fresh fist. Clear filters and begin offsets when capture identity changes. Test both hand orders, same-update pinch ties, scene/UI selection replacement, cancel during pending query, one-hand loss and open→fresh-left-pinch rearm.

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

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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

2026-11-08

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

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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/xr-spatial-input/gesture-arbitration.md

Gesture routing, capture and rearm

Separate state

Priority on each accepted update

Teleport transitions

Selection and capture closure

Requirements and compatibility

Security

Attribution and licence

Related skills

Setup TS Deep Modules

To Spec

Improve Codebase Architecture

Domain Modeling

Codebase Design

Prototype

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