Dear Povers,

 I'd like to build a glass cylinder having dual IOR. For example, a
little bit lower skin IOR(1.45) and normal center IOR(1.55) in the glass
cylinder. Would this be possible?
The other question:
Directionally different IOR's for a glass or semi-transparent plastic
cylinder. For example, higer IOR for cylinder axis direction and lower
IOR for radial direction. Would this also be possible?

Thank you all.
Jong

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