Public function for usdz export

[annahassel]

Is it possible to add public function for usdz export? For iOS issue I need to save real usdz file, and it's will be great if this file will be same as generated usdz file from model-viewer. But model-viewer element has no ability to get generated file or three.js scene (that could be used for USDZExporter utility).

Are you interested in PR for this feature?

[elalish]

Hmm, can I understand the use case a little better first? Our USDZ export is not the best; is there a reason you wouldn't use Apple's tools to build a USDZ and then use that in our ios-src?

[annahassel]

It's all because WKWebView does not support opening USDZs in QuickLook, so I need to store usdz for iOS app. I want to convert glb to usdz in the user's browser. I am satisfied with the result from USDZExporter utility and it solves my problem. At the moment I using GLTFLoader to get the three.js scene from user's glb and then pass it to USDZExporter, but that usdz looks different from the model-viewer. It will be great for me if these files are the same, but it's okay if it's not a model-viewer job.

[elalish]

Strange, that should give identical results. Perhaps check with three.js version you're using? What differences have you seen? You might look through our export function to see any tweaks we make to the scene you may want to copy.