Augmented Reality
This demonstrates several augmented reality modes, including
webxr, scene-viewer,
quick-look & the accompanying attributes,
ar, ar-scale,
ios-src.
Note that WebXR mode requires the page be served on HTTPS and if
enclosed in an iframe, that iframe must allow your origin the
xr-spatial-tracking policy.
In this example an ios-src attribute is specified,
which enables Quick Look on iOS even if it is not specified in
ar-modes. This requires an extra download, but can be
useful if the auto-generated USDZ is not adequate (for instance it
does not support animations yet). Also, this source can be either
a .usdz or a .reality file.