WebGPU: Fix crash of StandardMaterial when using uv2
WebGPU: Fix crash of StandardMaterial when using uv2
RaananW/Babylon.js,sebavan/Babylon.js,BabylonJS/Babylon.js,RaananW/Babylon.js,RaananW/Babylon.js,sebavan/Babylon.js,BabylonJS/Babylon.js,BabylonJS/Babylon.js,sebavan/Babylon.js