Intent to Prototype: WebXR/WebGPU integration

[Chromestatus]

Contact emails

baj...@chromium.org

Explainer

https://github.com/immersive-web/WebXR-WebGPU-Binding/blob/main/explainer.md

Specification

None

Summary

Provides a mechanism to display content rendered with WebGPU in WebXR sessions, enabling higher fidelity VR and AR content.

Blink component

Blink>WebXR

Motivation

WebXR is currently limited to only displaying content rendered with WebGL. WebGPU is the modern GPU rendering API, enabling many new features such as compute shaders. A new integration point must be introduced to enable WebXR to display content rendered with WebGPU, allowing it to keep pace with the latest in web capabilites.

Initial public proposal

https://github.com/immersive-web/proposals/issues/58

TAG review

None

TAG review status

Pending

Risks

Interoperability and Compatibility

None

Gecko: No signal

WebKit: No signal

Web developers: No signals

Other signals:

WebView application risks

Does this intent deprecate or change behavior of existing APIs, such that it has potentially high risk for Android WebView-based applications?

None

Debuggability

None

Is this feature fully tested by web-platform-tests?

No

Flag name on chrome://flags

None

Finch feature name

None

Non-finch justification

None

Requires code in //chrome?

False

Estimated milestones

No milestones specified

Link to entry on the Chrome Platform Status

https://chromestatus.com/feature/5077077997649920?gate=5154252033622016

This intent message was generated by Chrome Platform Status.

[Ken Russell]

Multiple developers have verbally indicated interest in using WebGPU to render to the WebXR environment, but nothing in writing that I can point to. Thumbs up from my non-owners standpoint.

-Ken

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[Caleb Raitto]

FYI, in the Chrome status entry (https://chromestatus.com/feature/5077077997649920), the link to this intent to prototype is broken.

-Caleb

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[Brandon Jones]

The link was previously working for me, but I've updated it just in case. Thanks!

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[Rik Cabanier]

Thanks for starting this effort Brandon! Many developers have expressed interest in WebGPU support for WebXR because they believe it will give them better performance and access to more GPU features.

Please let me know if you need any help or if the prototype is ready to be implemented by other vendors such as Quest Browser,

On Tue, Aug 13, 2024 at 12:03 PM Chromestatus <ad...@cr-status.appspotmail.com> wrote:

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