computer science

WebXR

WebXR is a computer science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand WebXR rather than just read about it. In short: WebXR Device API is a Web application programming interface (API) that describes support for accessing augmented reality and virtual reality devices, such as the HTC Vive, Oculus Rift, Meta Quest, Google Cardboard, HoloLens, Apple Vision Pro, Android XR-based devices, Magic Leap or Open Source Virtual Reality (OSVR), in a web browser. The WebXR Device API and related APIs are standards defined by W3C groups, the Imm…

Key takeaways

WebXR belongs to computer science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect WebXR to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of WebXR from memory before moving on to harder problems.

Reference excerpt

WebXR Device API is a Web application programming interface (API) that describes support for accessing augmented reality and virtual reality devices, such as the HTC Vive, Oculus Rift, Meta Quest, Google Cardboard, HoloLens, Apple Vision Pro, Android XR-based devices, Magic Leap or Open Source Virtual Reality (OSVR), in a web browser. The WebXR Device API and related APIs are standards defined by W3C groups, the Immersive Web Community Group and Immersive Web Working Group. While the Community Group works on the proposals in the incubation period, the Working Group defines the final web specifications to be implemented by the browsers. WebVR was an experimental Web API that was only capable of representing virtual reality and was superseded by WebXR.

History WebVR API was first conceived in spring 2014 by Vladimir Vukićević from Mozilla. The API's contributors include Brandon Jones(Google), Boris Smus and others from the Mozilla team. On March 1, 2016, the Mozilla VR team and the Google Chrome team announced the version 1.0 release of the WebVR API proposal. The resulting API refactoring brought many improvements to WebVR. The latest WebXR Device API Working Draft was last published in February 2022. The editors of the specification currently are from Google and Meta. Other members from Mozilla, Microsoft, Samsung Electronics and Apple, as well as various startups and invited experts have input in the future of the specification. All of the discussions of the specifications are public on GitHub. Notable updates include enhanced AR capabilities, improved performance, and broader device support. The ongoing efforts focus on standardizing and advancing the WebXR API, providing developers with the necessary tools and resources to create immersive web experiences. In 2018, the WebXR Device API superseded WebVR, being designed for both augmented reality, virtual reality devices and the possible future realities and devices. WebVR was implemented in Firefox and Chromium-based browsers before being deprecated and removed. On September 24, 2018, the Immersive Web Working Group became official.

Design The WebXR Device API exposes a few new interfaces (such as XRView, XRPose) that allow web applications to present content in virtual reality and augmented reality, by using WebGL with the necessary camera settings and device interactions (such as controllers or point of view).

Support WebXR Device API (Candidate Recommendation Draft) is currently supported in the stable versions of Edge and Chrome 79+, Chrome for Android 79+, Opera 66+, Opera Mobile 64+, Samsung Internet 12+, and Oculus Browser. WebXR is supported in Safari for visionOS on the Apple Vision Pro mixed reality headset. Android XR also supports WebXR.

Similar technologies Although WebXR is unique as an API, it has similarities to native APIs in the same space such as OpenXR, ARCore, and ARKit.

See also WebGL OpenXR Web API Virtual reality Augmented reality Spatial computing World Wide Web Consortium A-Frame (virtual reality framework)

References

External links Fundamentals of WebXR on MDN Web Docs WebXR: How to Bring Virtual Reality to Any Device

Worked examples

Example 1 — a first encounter with WebXR

Start with the simplest possible case. Write down what WebXR claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In computer science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to WebXR before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about WebXR ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of WebXR

In research: WebXR appears in computer science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses WebXR in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: WebXR is common in secondary-school and first-year university syllabi. It links to neighbouring topics Ambient intelligence, Augmented reality, HTML5, so understanding it makes those chapters shorter.
In everyday life: Look for WebXR outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

Ask Teacher Smith questions about this articleOpens your AI tutor with a question about “WebXR” →

Affiliate

Preply — study more efficiently by working with a personal tutor. 50% off.

How to study WebXR in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what WebXR means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain WebXR out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is WebXR in simple terms?

Why does WebXR matter?

Because it connects several computer science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study WebXR?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on WebXR.