model lost texture

[dungnguyen234]

i have use this scan model for display in AR with model viewer , the problem is that this model have texture when i open with https://3dviewer.net/ but can not when using with model viewer , this is file model :

https://drive.google.com/file/d/1zPMWu_nZZzlVGaBPMS_pSfyWTdz4wGUG/view?usp=share_link

please help me to figure out this issue

[elalish]

Your file uses the SpecularGlossiness extension, which is deprecated (hence no color). Our editor should be able to automatically update it for you, but there's a bug blocking that: donmccurdy/glTF-Transform#916

You should be able to use the gltf-transform CLI to do the conversion for you as well.