[Webkit-unassigned] [Bug 250388] New: [Regression] Unable to load gltf models on Safari 16.2 with WebKit via Metal

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=250388

            Bug ID: 250388
           Summary: [Regression] Unable to load gltf models on Safari 16.2
                    with WebKit via Metal
           Product: WebKit
           Version: Safari 16
          Hardware: iPhone / iPad
                OS: iOS 16
            Status: NEW
          Severity: Major
          Priority: P2
         Component: WebGL
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: me at mikeorozco.dev
                CC: dino at apple.com, kbr at google.com, kkinnunen at apple.com

When loading a gltf model using latest version of BabylonJS, the resulting canvas is empty (white) with nothing rendered inside of it. Also getting extreme lag in the browser & 0 FPS.
There are no errors or warnings given in the developer console.

This issue does not appear when WebGL via Metal is disabled.
It does NOT seem to be consistently affecting all devices.

This was previously working on iOS 15.6.*

Tested on the following devices:
iPhone 13 Pro Max
iPad Pro 5th gen
iPad Pro 6th gen

Example:
https://playground.babylonjs.com/#LMKWQL#6

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