About threejs-webxr
A skill for developers and coding agents working with three.js WebXR features. It covers session setup, entry buttons, controllers, hand tracking, and estimated lighting, with attention to browser and device limitations.
Key features
- 01XR session and renderer setup
- 02VR and AR entry buttons
- 03Controller models and input
- 04Optional hand tracking
- 05Estimated lighting for AR
- 06Session exit and render-loop handling
Use cases
- 01Adding VR or AR entry to a three.js scene
- 02Handling XR controllers and gamepad input
- 03Enabling hand models when supported
- 04Restoring normal rendering after an XR session
Install
Copy the command and run it in a terminal.
npx skills add https:/ / github.com/ full-stack-skills/ threejs-skills --skill threejs-webxrAfter installing, type/threejs-webxrin Claude Code to confirm it loaded.
Bundled filesagents/openai.yamlexamples/workflow-xr-button.md
Details
From the project READMEWhen to use this skill
ALWAYS use this skill when the user mentions:
- Entering VR/AR,
navigator.xr, reference spaces, sessionrequestAnimationFrameloop via renderer VRButton,ARButton,XRButtoncreation patterns from examples- Controller models, hand tracking meshes, estimated real-world lighting probes
IMPORTANT: webxr vs renderers vs camera
| Topic | Skill |
|---|---|
| Enable XR on renderer, sizing | threejs-renderers (basics) + threejs-webxr (session) |
| Desktop projection | threejs-camera |
Trigger phrases include:
- "WebXR", "VRButton", "ARButton", "XRControllerModelFactory", "hand tracking"
- "虚拟现实", "增强现实", "沉浸式"
How to use this skill
- HTTPS requirement and feature detection for XR availability.
- Buttons: use official button factories to create DOM entry points; handle session end.
- Renderer: call
renderer.xr.enabled = truepatterns per docs; prefersetAnimationLoopfor XR loops. - Controllers: attach models via factories; read gamepad axes/buttons carefully with fallbacks.
- Hands: opt-in hand models when runtime supports; performance implications.
- Lighting:
XREstimatedLightfor AR realism—combine with threejs-lights cautiously. - Exit: restore non-XR render loop and resize handling on session end.
See examples/workflow-xr-button.md.
Doc map (official)
| Docs section | Representative links |
|---|---|
| Renderer XR | https://threejs.org/docs/WebXRManager.html |
| Webxr addons | https://threejs.org/docs/VRButton.html |
| Webxr addons | https://threejs.org/docs/ARButton.html |
| Webxr addons | https://threejs.org/docs/XRControllerModelFactory.html |
Scope
- In scope: Documented WebXR manager + listed addons for buttons/controllers/hands/planes.
- Out of scope: Store submission, OpenXR runtime specifics, custom native layers.
Common pitfalls and best practices
- Desktop testing requires XR emulation or hardware; fail gracefully.
- Mismatched reference space causes floor offset—validate stage vs local-floor.
- Heavy post chains may not meet VR frame time—profile aggressively.
Documentation and version
WebXR entry points span Addons → Webxr and renderer WebXRManager in three.js docs. Browser and device capabilities vary—answers should cite the official example name and three.js version when possible.
Agent response checklist
When answering under this skill, prefer responses that:
- Link
WebXRManager,VRButton,ARButton, or controller factories as relevant. - Use
setAnimationLooppatterns with threejs-renderers for XR render loops. - Avoid duplicating desktop threejs-camera projection advice for XR eyes.
- Mention reference space choice (local-floor, etc.) at a high level with docs link.
- Flag performance interaction with threejs-postprocessing in VR.
References
- https://threejs.org/docs/WebXRManager.html
- https://threejs.org/docs/VRButton.html
- https://threejs.org/docs/ARButton.html
- https://threejs.org/docs/XRControllerModelFactory.html
Keywords
English: webxr, vr, ar, xr session, controller, hand tracking, three.js
中文: WebXR、VR、AR、VRButton、手柄、手部追踪、沉浸式、three.js