No XR on iOS 17 with XR Viewer

[samhodge]

I tried to get it to work and the button appears but no result

[kotauchisunsun]

@samhodge
As far as I know, Apple's compliance with the WebXR specification is very poor.
You can check your browser's compliance with WebXR at the following site
https://immersive-web.github.io/webxr-samples/

Probably, Safari on iOS will show no support for WebAR. This is probably why the demo program does not work.

[samhodge]

Oh sorry I was using another browser

XRViewer

https://labs.mozilla.org/projects/webxr-viewer/

[samhodge]

AR works VR doesn't on my phone

[jakerator]

AR doesn't work on IOS "WebXR Viewer (firefox)" neither on "XR Browser".
But "XR Browser" works fine with Lumalabs GS library .

So probably some issue with the threejs renderer. Maybe try to use buil-in ARButton component?

[mkkellogg]

Do any of the three.js official AR examples work for you?

https://threejs.org/examples/webxr_ar_lighting.html
https://threejs.org/examples/webxr_ar_cones.html
https://threejs.org/examples/webxr_ar_hittest.html

[samhodge]

Do any of the three.js official AR examples work for you?

https://threejs.org/examples/webxr_ar_lighting.html

https://threejs.org/examples/webxr_ar_cones.html

https://threejs.org/examples/webxr_ar_hittest.html

I tried each of those URLs in the following App

https://apps.apple.com/au/app/webxr-viewer/id1295998056

They all failed in different ways some had the Start AR like button others had a blank screen

[mkkellogg]

Based on your findings my guess is that there is an issue with three.js' WebXR implementation. Hopefully I can dedicate some time to investigate in the near future.

[samhodge]

Thanks for your response, it seems upstream of your work. But could be worth informing the threejs people of the issue

The iOS audience is a large portion of users

[dlazares]

@mkkellogg there's a bug in the current viewer for webxr. You can test this by downloading the visionos simulator, enabling webxr (settings -> app -> safari -> advanced -> feature flags -> enable webxr). you need to change the button to VR mode. There's a big jitter. This wasn't on previous versions. we have an earlier fork that was working on Apple Vision Pro.
it was working as of commit b0b96454550a997c017a1b408186dae58efa4a27