SceneViewer aspect ratio is messed up

[hybridherbst]

Description

I understand that this is a SceneViewer bug and not model-viewer, but since there's no way to submit bugs to SceneViewer I'm submitting this here in the hope it goes to the right people.

I think this is a regression as I'm pretty sure it didn't happen a while back, but AR view in SceneViewer being launched from model-viewer doesn't have proper aspect ratio anymore on a Xiaomi Mi 9.

Live Demo

https://near-singularity.glitch.me/ - very visible on the head in the first model

The head is a sphere

Phone in landscape, note head is squashed

Phone in portrait, note head is stretched

Browser Affected

• [x ] Chrome
• Edge
• Firefox
• Helios
• IE
• Safari

OS

• [x ] Android
• iOS
• Linux
• MacOS
• Windows

Versions

Probably a bug in SceneViewer, not model-viewer

[cdata]

Thanks for reporting, I filed this bug internally w/ the Scene Viewer team. I'll report back here if there are any updates.

[hybridherbst]

Bump - aspect is still messed up in latest ARCore/SceneViewer updates.

[elalish]

@tpsiaki Did this get fixed?

[AdrianAtGoogle]

this isn't an issue with the model rendering but with the feed (i.e. the background is similarly squashed and stretched). We don't have much agency over that -- the system tells us what transform to use to sample from the feed texture and what 3D transform to use to match it.

@hybridherbst can you confirm this issue appears only in SV AR on the Xiaomi Mi 9, and not in ModelViewer's WebXR AR?