FBX export with transparency

I am trying to export the FBX 3d model with no any texture, and upload to a Sketchfab-based website.
However, when I apply the glass texture to the model, the texture will make my model like a white color glass. And I try to set glass material or plastic material with 100% transparency to the model in Rhino and export, they got the same result as white color glass in that website.

And my final goal is to be like below. It is the same texture, but got 2 different results.

Hi Ken -
In a quick test here, FBX export doesn’t support transparency. I found an open bug report that might be relevant and I’ve added this thread - RH-63057.