Omniverse Realtime Viewer
OpenAIOfficialCreated by NVIDIA OmniverseDistributed by OpenAI
- Skill
- Meta (authoring, orchestration, planning, memory)
- Software development
- Apache-2.0
- Medium risk
AutoGineer summary
Written by AutoGineer from the skill’s own files, not by the author
The Omniverse Realtime Viewer skill acts as a central orchestrator for developing USD-based viewer applications. It provides a structured approach to selecting implementation recipes, enforcing architectural conventions, and managing dependencies. By utilizing a set of focused reference documents, it guides developers through the lifecycle of building, configuring, and validating viewer applications, ensuring consistent behavior across different delivery paths such as local workstations or streaming environments.
What it does
- Routes development requests to specific implementation recipes based on the target delivery path.
- Enforces architectural rules for USD rendering, stage management, and UI integration.
- Provides guidance on camera selection, input handling, and viewport interaction.
- Standardizes the integration of AOV switching and render product configuration.
- Facilitates the capture of validation evidence for viewer readiness.
- Maintains separation between user-provided USD files and application-specific session state.
When to use it
- When initiating the development of a new USD viewer application within the Omniverse ecosystem.
- When determining the appropriate delivery path for a viewer, such as local native or streaming.
- When needing to implement consistent camera, selection, or UI behavior across viewer projects.
- When integrating advanced rendering features like AOV switching into an existing viewer.
Advantages
- Ensures architectural consistency across diverse viewer implementations.
- Provides a clear, modular path for adding specific capabilities like input routing or data display.
- Promotes clean separation of concerns between stage data and viewer-owned state.
- Standardizes the validation process for consistent delivery.
Usage examples
- “I need to build a browser-based viewer for USD files.”
- The agent will route you to the streaming viewer recipe, providing guidance on WebRTC stream setup, UI integration, and viewport interaction.
- “How do I implement AOV switching in my local USD viewer?”
- The agent will provide the AOV switching reference, detailing how to map render vars and update the display state on the server.
Install
Download the skill as a ZIP:
https://autogineer.com/agent-skills/openai/omniverse-realtime-viewer/downloadUnzip 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
This is the top-level entry point for the Omniverse Realtime Viewer skill package. It is self-contained: all required routing, conventions, and validation guidance live in the selected references.
Use the focused reference documents as implementation recipes. This file chooses the right recipes and preserves the architectural rules that must hold across all generated viewer apps.
Instructions
Start by classifying the requested viewer, then read only the references needed
for that delivery path and feature set. Implement the render path first, layer
interaction and UI behavior on top of it, and finish by capturing validation
evidence from references/validation.md.
Read Order
Read
references/routing.mdto choose the delivery path and focused references.Read
references/conventions.mdbefore implementing camera, input, selection, viewport, streaming protocol, scene loading, or environment behavior.For broad viewer requests, read
references/usd-viewer-app/README.md.If the delivery path is unclear, read
references/streaming-vs-local/README.md.If the prompt includes layout, panels, controls, inspectors, status, or UX, read
references/viewer-ux-workflow/README.mdand then the focused viewer UI references. This applies to React/WebRTC, Tauri, Electron,ovui,ovwidgets, and Dear ImGui apps; "frontend" means user-facing UI, not only browser UI.For viewport interaction, read
references/viewer-input-routing/README.mdbeforereferences/camera-controls/README.md,references/native-picking-selection/README.md, orreferences/object-selection/README.md.Read only the focused capability references needed for the requested app.
Use
references/validation.mdto capture review evidence before handoff.
Non-Negotiables
Use
ovrtxfor all USD and 3D rendering.Browser apps display an
ovstreamWebRTC video stream plus UI. The browser does not render USD geometry.Do not substitute WebGL, Three.js, Babylon.js, PlayCanvas, A-Frame, model-viewer, react-three-fiber, glTF browser viewers, or other client-side 3D renderers.
If local validation cannot run because the GPU/runtime environment is absent, scaffold the
ovrtxpath and document the runtime requirement. Do not add a browser-renderer fallback.Keep user USD files unmodified. Viewer cameras, render products, render vars, settings, selection metadata, and runtime state belong in session/composite layers or app state.
Keep one owner for
renderer.step(), stage mutation, native picking, selection writes, and live attribute writes.Keep dependency acquisition in
references/dependencies/README.mdand deployment choices inreferences/cloud-deployment/README.md; do not duplicate package locations or deployment setup.
Focused Reference Families
Entry points and recipes:
references/usd-viewer-app/README.md,references/streaming-viewer-recipe/README.md,references/ovui-local-viewer-recipe/README.md,references/streaming-vs-local/README.md,references/electron-shm-viewer/README.md,references/ovwidgets-editor-shell/README.md.Rendering and stage:
references/ovrtx-rendering/README.md,references/stage-loading/README.md,references/stage-management/README.md,references/render-settings/README.md,references/aov-switching/README.md,references/stage-hierarchy/README.md,references/stage-queries/README.md,references/stage-attribute-reads/README.md,references/prim-transform-safety/README.md,references/usd-sample-data/README.md.Delivery and runtime:
references/streaming-server/README.md,references/streaming-client/README.md,references/streaming-messages/README.md,references/streaming-lifecycle/README.md,references/local-viewer/README.md,references/tauri-local-viewer/README.md,references/cpp-native-viewer/README.md,references/headless-shm-cli/README.md,references/viewer-backend-interface/README.md,references/webgl-shm-transport/README.md.Viewer UI/UX:
references/viewer-ux-workflow/README.md,references/viewer-layout-patterns/README.md,references/viewer-control-patterns/README.md,references/viewer-data-view-patterns/README.md,references/viewer-feedback-status/README.md.Interaction:
references/viewer-input-routing/README.md,references/camera-controls/README.md,references/object-selection/README.md,references/native-picking-selection/README.md,references/selection-feedback/README.md,references/selection-animation/README.md,references/transform-manipulator/README.md,references/gl-viewport-overlay/README.md,references/ovui-library/README.md,references/prim-pick-effects/README.md,references/prim-info-display/README.md,references/viewport-overlays/README.md.Infrastructure:
references/dependencies/README.md,references/windows-native-setup/README.md,references/cloud-assets/README.md,references/cloud-deployment/README.md,references/troubleshooting/README.md.
Build Workflow
Classify the prompt by delivery path, target user, required capabilities, runtime environment, validation needs, and explicit constraints.
Select a small reference set. Start with the recipe or routing reference, then add focused capabilities such as camera, picking, hierarchy, properties, render settings, transform tools, cloud assets, or deployment.
Read selected references before writing app code. Follow their build order, import order, data-channel contracts, and renderer ownership rules.
Implement the core render path first, then input routing and camera, then selection and data panels, then scene/settings features, then packaging or deployment.
Treat the selected references as the behavior contract for API shape, compatibility, and generated project structure.
Capture validation evidence before calling the viewer ready.
Examples
For a browser viewer request, use the streaming recipe references plus camera, picking, hierarchy, properties, render settings, and stream-status references.
For a local workstation viewer request, use the local or native delivery references plus renderer setup, stage loading, viewport input, and validation.
Completion Checklist
Selected references match the user's intent and delivery path.
No code path uses a browser-side 3D renderer for USD.
The generated app has one clear owner for render stepping and stage mutation.
User USD files remain untouched by viewer-owned session data.
Camera, input, selection, scene loading, and stream behavior follow
references/conventions.md.Setup/build/run results and visual interaction evidence are captured with
references/validation.md.
Files
- ATTRIBUTION.mdAdded by AutoGineer1.0 KiB
- BENCHMARK.md5.5 KiB
- LICENSEAdded by AutoGineer10.0 KiB
- SKILL.md7.4 KiB
- agents/openai.yaml315 B
- evals/evals.json8.1 KiB
- references/aov-switching/README.md15.2 KiB
- references/camera-auto-select/README.md7.4 KiB
- references/camera-controls/README.md17.1 KiB
- references/camera-picker/README.md9.7 KiB
- references/cloud-assets/README.md10.4 KiB
- references/cloud-deployment/README.md18.0 KiB
- references/conventions.md5.3 KiB
- references/cpp-native-viewer/README.md2.4 KiB
- references/cpp-native-viewer/interaction-features.md19.2 KiB
- references/cpp-native-viewer/presentation-loop.md9.0 KiB
- references/cpp-native-viewer/project-build.md6.4 KiB
- references/cpp-native-viewer/renderer-session.md4.5 KiB
- references/cpp-native-viewer/validation.md3.3 KiB
- references/dependencies/README.md3.4 KiB
- references/dependencies/electron-shm.md1.5 KiB
- references/dependencies/environment-validation.md4.4 KiB
- references/dependencies/frontend.md2.3 KiB
- references/dependencies/local-openusd-gpu.md4.4 KiB
- references/dependencies/nvidia-runtime.md9.0 KiB
- references/dependencies/ovrtx.md2.4 KiB
- references/dependencies/ovstream.md2.5 KiB
- references/dependencies/quick-setup.md5.3 KiB
- references/electron-shm-viewer/README.md2.2 KiB
- references/electron-shm-viewer/architecture-project.md6.3 KiB
- references/electron-shm-viewer/electron-client.md5.6 KiB
- references/electron-shm-viewer/protocol-interaction-lifecycle.md6.9 KiB
- references/electron-shm-viewer/python-shm-server.md4.9 KiB
- references/electron-shm-viewer/validation.md2.8 KiB
- references/gl-viewport-overlay/README.md7.9 KiB
- references/gl-viewport-overlay/architecture.md4.1 KiB
- references/gl-viewport-overlay/example-gizmo.md5.5 KiB
- references/gl-viewport-overlay/interaction-pattern.md4.0 KiB
- references/gl-viewport-overlay/projection-alignment.md4.3 KiB
- references/headless-shm-cli/README.md12.2 KiB
- references/huggingface-usd/README.md7.7 KiB
- references/local-viewer/README.md15.0 KiB
- references/native-picking-selection/README.md10.4 KiB
- references/object-selection/README.md9.4 KiB
- references/ovrtx-rendering/README.md18.2 KiB
- references/ovui-library/README.md3.3 KiB
- references/ovui-library/api-reference.md4.3 KiB
- references/ovui-library/extending.md4.8 KiB
- references/ovui-local-viewer-recipe/README.md3.7 KiB
- references/ovui-local-viewer-recipe/interaction-features.md16.1 KiB
- references/ovui-local-viewer-recipe/project-structure.md6.2 KiB
- references/ovui-local-viewer-recipe/setup-shell-renderer.md14.3 KiB
- references/ovui-local-viewer-recipe/validation-build-order.md5.5 KiB
- references/ovwidgets-editor-shell/README.md8.6 KiB
- references/prim-info-display/README.md9.3 KiB
- references/prim-pick-effects/README.md5.9 KiB
- references/prim-transform-safety/README.md8.2 KiB
- references/render-settings/README.md9.9 KiB
- references/routing.md16.5 KiB
- references/seg-outline-highlight/README.md1.4 KiB
- references/selection-animation/README.md9.7 KiB
- references/selection-feedback/README.md6.6 KiB
- references/stage-attribute-reads/README.md5.5 KiB
- references/stage-hierarchy/README.md17.1 KiB
- references/stage-hierarchy/fallback-worker-protocol.md3.5 KiB
- references/stage-loading/README.md19.3 KiB
- references/stage-management/README.md10.1 KiB
- references/stage-queries/README.md5.3 KiB
- references/streaming-client/README.md17.4 KiB
- references/streaming-lifecycle/README.md8.8 KiB
- references/streaming-messages/README.md16.5 KiB
- references/streaming-messages/server-handler-map.md3.1 KiB
- references/streaming-server/README.md18.6 KiB
- references/streaming-server/frame-loop-and-continuity.md3.3 KiB
- references/streaming-viewer-recipe/README.md4.8 KiB
- references/streaming-viewer-recipe/client-protocol.md11.0 KiB
- references/streaming-viewer-recipe/interaction-features.md13.0 KiB
- references/streaming-viewer-recipe/project-structure.md7.0 KiB
- references/streaming-viewer-recipe/server-runtime.md16.8 KiB
- references/streaming-viewer-recipe/validation-build-order.md5.8 KiB
- references/streaming-vs-local/README.md8.1 KiB
- references/tauri-local-viewer/README.md18.2 KiB
- references/tauri-shm-transform-gizmo/README.md11.8 KiB
- references/transform-manipulator/README.md15.0 KiB
- references/troubleshooting/README.md7.2 KiB
- references/troubleshooting/scenario-playbooks.md18.8 KiB
- references/usd-sample-data/README.md11.7 KiB
- references/usd-viewer-app/README.md7.5 KiB
- references/validation.md3.0 KiB
- references/viewer-backend-interface/README.md17.7 KiB
- references/viewer-control-patterns/README.md4.8 KiB
- references/viewer-data-view-patterns/README.md4.8 KiB
- references/viewer-feedback-status/README.md4.9 KiB
- references/viewer-input-routing/README.md7.8 KiB
- references/viewer-layout-patterns/README.md4.7 KiB
- references/viewer-ux-workflow/README.md4.6 KiB
- references/viewport-overlays/README.md4.8 KiB
- references/viewport-resize/README.md8.5 KiB
- references/webgl-shm-transport/README.md14.5 KiB
- references/windows-native-setup/README.md5.7 KiB
- skill-card.md2.9 KiB
- skill.oms.sig28.6 KiB
references/conventions.md
<!-- SPDX-FileCopyrightText: Copyright (c) 2026 NVIDIA CORPORATION & AFFILIATES. All rights reserved. -->
<!-- SPDX-License-Identifier: Apache-2.0 -->
Omniverse Realtime Viewer Conventions
These conventions are the shared behavior contract for all focused references in this skill package. If a focused reference needs one of these values, use this file instead of inventing a local rule.
Architecture
All USD and 3D rendering uses
ovrtx.Browser-streamed apps display an
ovstreamvideo stream in a video element. The browser does not render USD geometry.Desktop apps display frames rendered by
ovrtxin-process or through local pixel transport.
Mouse And Input
Left mouse button drag: orbit.
Middle mouse button drag: pan.
Right mouse button drag: dolly/zoom.
Scroll wheel: zoom; scroll up zooms in.
Left click selection fires on mouse release, not press.
A press becomes a drag when either axis moves by more than
1.0pixel.Local ovui button IDs are remapped before calling shared camera code:
0 -> left/orbit,2 -> middle/pan,1 -> right/dolly.WebRTC input uses the NVST native input channel. The browser streaming library forwards binary
InputEventstructs to ovstream; React does not implement client-side 3D camera math or send JSON camera input.SHM input uses
ovstream.ShmClient.send_input_event()from Python orovstream_shm_client_send_input_event()from C withInputEventstructs. Do not send JSONmouseInputfor SHM camera control.In-process transports call the Python/C++ camera, selection, and settings APIs directly.
Selection
Default viewer behavior is single-select. Selecting a new prim replaces the previous selection; clicking empty space clears selection. If multi-select is requested, every subscriber must explicitly support mixed values and multiple highlighted prims.
Viewport selection should use the selected delivery path's native picking route first, then a documented fallback when native picking cannot resolve a selectable prim.
Selection state is keyed by stable USD prim paths and synchronized across the viewport, tree, property panel, and any status or info surfaces.
Selection feedback should be renderer-visible and work for arbitrary valid USD scenes. Prefer native outlines or selection groups when the selected renderer path supports them.
Material-driven glow, visibility changes, or shader-parameter effects are optional pick effects. Use them only when the active stage exposes compatible targets or the user explicitly asks for that behavior.
Selection animation is optional and product-specific. If requested, keep it parameterized, reversible, and safe for the stage's units and coordinate system; do not assume a fixed lift direction, duration, or asset scale.
Viewport And Rendering
Choose render size from the delivery skill and product requirements. Keep it fixed for a session unless the
viewport-resize/README.mdskill is explicitly selected.UI resize scales the displayed image; it does not dynamically resize the render product unless the
viewport-resize/README.mdskill is explicitly selected.Browser video uses
object-fit: contain.NVST maps pointer coordinates between the contained video and intrinsic stream resolution. Local apps use the visible image content rect for the same letterbox mapping.
Every stream frame handed to ovstream is BGRA8. Convert or colorize AOVs on the server before
stream_video().Shader bake/compile can take time on first load. Complete warmup before accepting client connections when startup latency matters.
Camera
The camera is a USD prim, updated by writing
omni:xform.Camera matrices are row-major: row 0 = right, row 1 = up, row 2 =
-forward, row 3 = eye/translation.Fit the camera to the stage on initial load unless the app restores an explicit saved camera state.
Camera gizmos are ovui overlays: local apps draw them in the viewport UI; streaming apps composite server-side ovui output into the BGRA stream.
Scene Loading
User USD files are not modified by viewer setup.
Viewer camera, render product, render vars, settings, and selection metadata live in a session layer or composite wrapper.
Clear selection, hover, temporary effects, and any viewer-authored runtime overrides on every stage load.
Do not call
renderer.step()whilereset_stage(),add_usd(), or a session/composite rebuild is mutating the renderer.Detect the scene root dynamically on the server and pass
root_prim_pathto clients instead of hardcoding/World.
Streaming Protocol
WebRTC signaling and media ports are selected by the streaming/deployment skills. Do not hardcode deployment-specific ports unless the selected reference or hosting environment requires them.
App messages travel over the data channel as JSON with
{ "event_type": "...", "payload": {...} }.AppStreamer client messages may be wrapped by the streaming library; unwrap before dispatching on the server.
Environment
Set
OVRTX_SKIP_USD_CHECK=1before importing or constructingovrtx.Import/setup order for streaming servers is: environment variables ->
ovrtx/renderer -> streaming helpers ->pxronly behind the chosen isolation boundary.Keep
renderer.step()ownership on one render thread or UI loop.
Requirements and compatibility
Written for: OpenAI Codex
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.
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
- OpenAI (Official)
- Distributed by
- OpenAI
- Source
- openai/plugins · plugins/nvidia/skills/omniverse-realtime-viewer · commit d420d13
- Licence
- Apache License 2.0 (redistribution allowed)
- LICENSE (written by AutoGineer)
- ATTRIBUTION.md (written by AutoGineer)
- Synced
AutoGineer is not affiliated with or endorsed by NVIDIA Omniverse or OpenAI.
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Download ZIP
The ZIP holds the skill’s files, its licence files and an ATTRIBUTION.md. Download omniverse-realtime-viewer.zip