Object requires a newer version of IOS

[wallabyway]

I can load and view a normal test.GLB file on my iPhone, using the three.js USDZ exporter. It converts the three.js scene into a USDZ file, so it can be viewed with AR QuickLook, on iPhone.

However, if I compress the same test.GLB file with mesh-optimizer, and load this in three.js with meshOpt, then, it appears to preview correctly in three.js, but when it converts it to a USDZ file, and tries to view that on the iPhone quicklook preview.. then the following error message appears: "Object requires a newer version of IOS" when viewing in IOS QuickLook.

Could this be something wrong with the USDZ exporter, or something wrong with the buffer structure?

[wallabyway]

oh wait.. there's something wrong with the USDZExporter.

it's reporting this error in the console...

for ( let i = 0; i < data.length; i += 3 ) {

		array.push( `(${ data[ i + 0 ].toPrecision( PRECISION ) }, ${ data[ i + 1 ].toPrecision( PRECISION ) }, ${ data[ i + 2 ].toPrecision( PRECISION ) })` );

[wallabyway]

Cross Referencing: mrdoob/three.js#22609

[zeux]

FWIW this is probably going to be reproducible without -c as well, and likely says that USDZ exporter doesn't support interleaved arrays. Either way that's a three.js issue, gltfpack doesn't know what USDZ is.

[wallabyway]

Bug was in three.js. Now fixed via this pull request: mrdoob/three.js#22633)