Chrome iOS + auto-generated USDZ = not launching Quick-Look?

[cunicode]

Chrome iOS fails to launch Quick-look when the USDZ is auto-generated by modelviewer.

can you reproduce? or is it only me?

√ - The auto-generated USDZ loads in Quick-Look in Safari
√ - Chrome iOS launches Quick-look if if USDZ is in the code
X - Chrome iOS does not launch if the USDZ is auto-generated

[samaneh-kazemi]

@cunicode Hi, can you please share a repro link so we can debug your case?

[cunicode]

this one: https://modelviewer.dev/examples/augmentedreality/#customButton

<!-- Import the component -->
<model-viewer ar ar-modes="webxr scene-viewer quick-look" camera-controls src="../../shared-assets/models/Astronaut.glb" alt="A 3D model of an astronaut">
  <button slot="ar-button" style="background-color: white; border-radius: 4px; border: none; position: absolute; top: 16px; right: 16px; ">
      👋 Activate AR
  </button>
</model-viewer>

[elalish]

I believe this has been fixed by the latest iOS Chrome version. Have you updated?

[milesgreen]

I don’t think Chrome iOS supports opening USDZ from auto-generated file blob, only from URL.

To work in Chrome iOS, you need to provide a path to a USDZ in the ios-src parameter.

Which is a pain, as that limits USDZ auto generation to just Safari on iOS.

[cunicode]

that's the behaviour I was seeing.
I just wanted to confirm if that was the expected behaviour.
if yes, documentation should be updated.

[elalish]

It's just a bug on iOS Chrome; they're working on it. Similar to how Safari has a bug where Quick Look's API doesn't work for auto-generated USDZ either, since they drop query params on blobs. Ah for life at the bleeding edge...

[nbaybara]

Is there any updates?

[uprealdigital]

Hi,

I just ran into that issue with IOS Chrome and auto-generated USDZ files.

I saw a GLB / GLTF exporter but if we had a USDZ exporter, we could generate the file ourselves and serve the file in a regular URL and not a blob URL right?

[elalish]

That's right; you can use Apple's converter for this.

[nbaybara]

Is there any updates on this issue?

[rawwerks]

i am also curious if there is any update on this issue?

related discussions:

• best practices for maintaining color with AR - USDZExporter not matching three.js #3192
• is it possible to load a client-side GLB blob into model-viewer? #3184

[elalish]

The main thread is here: #3292 which includes a link to the iOS Chrome bug, which you could +1: https://bugs.chromium.org/p/chromium/issues/detail?id=1197345