Bug 246461 – REGRESSION: <model> stopped presenting any .usdz

• Component: WebXR
• Status: NEW

[Thomas Kumlehn]

macOS Version 13.0 Beta (22A5373b)

Neither Safari 16 Version 16.1 (18614.2.9.1.8), nor Safari TP Release 155 (Safari 16.4, WebKit 18615.1.7.1) load USDZ files.

Examples pages that worked on prior macOS 12 are:
https://kreativekommunikationskonzepte.de/ar-player-webbasierte-augmented-reality-jetzt-auch-vom-desktop-aus-moeglich/
https://kreativekommunikationskonzepte.de/wp-content/uploads/ar/_xA_CNC_example.html

[Radar WebKit Bug Importer]

<rdar://problem/101151375>

[Thomas Kumlehn]

not fixed for macOS Version 13.0 RC (22A379)

Instead of just an empty <model> canvas, it now shows the error icon

[Thomas Kumlehn]

Same for Release 157 (Safari 16.4, WebKit 18615.1.11.7)

[Cameron McCormack (:heycam)]

Hi Thomas, thanks for filing this bug. I can't seem to reproduce the problem though. I tried using Safari on macOS 13.0, as well as a more recent macOS release, and using STP 159, and models are showing up fine.  This does require the experimental feature to be turned on: Develop > Experimental Features > HTML <model> element.

Can you confirm that you have the experimental feature turned on, and that models are still not showing for you?

[Thomas Kumlehn]

Dear Cameron,

with Safari on iPadOS it works again, but still on my macMini under macOS 13.0.1 (22A400) and with STP 159 the above mentioned pages don't work. System 
Experimental features for both <model> and stand-alone document are enabled, like on iPadOS.

You obviously have other conditions compared to mine.

My system has 16 GB RAM and I just quit ALL Applications except Safari and Finder.
No change.

[Thomas Kumlehn]

I restarted ("warm boot") the system and the only change:
Instead of staying empty, the <model> canvas shows an ARKit-Error-Icon (with an x) like mentioned before.

[Thomas Kumlehn]

I specifically test with this:
https://kreativekommunikationskonzepte.de/wp-content/uploads/ar/_xA_CNC_example.html

It loads not a simple USDZ Asset, but a scene that uses the preliminary AR related extension schemes. So maybe I better report this problem to the ARQL team, as you probably only test with regular, non-interactive assets.

[Dean Jackson]

Thanks for the report. We'll send it over to the USD team.

[Thomas Kumlehn]

I tried to use a non interactive USDZ scene, but w/o success.

```html
<model interactive>
    <source src="NeilArmstrong.usdz" type="model/vnd.usdz+zip">
</model>
```