What am I saying it has a green Exit Color. If you want to make a donation for the development of this site, then you can do it here: Donate. I think echadwick-artist manually edited the glTF to create the glass material when he created it. Creating realistic glass material in 3d Max. Even without any texture, if we simply change Transparency Weight from 0 to any other value, we got transparent material with same problems glitches.
nest...