They do have glasses which are coated with a metallic surfactant. I saw something like that on TV on a cable show called "How It's Made".  Very informative.

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OS: Windows 11 64-bit
Poser: Poser 11.3 ...... Units: inches or meters depends on mood
Bryce: Bryce Pro 7.1.074
Image Editing: Corel Paintshop Pro
Renderer: Superfly, Firefly

9/11/2001: Never forget...

Smiles are contagious... Pass it on!

Today is the tomorrow you worried about yesterday