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Rendering with Arnold in CINEMA 4D using the C4DtoA plug-in.
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Basic Question about IOR Values

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Anonymous
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Basic Question about IOR Values

I just noticed a second ago that IOR in C4DtoA can go below 1.

I guess it's nothing new, I've just never used/noticed this before.

My question is, what practical applications are there for using an IOR that is below 1?

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peter.horvath6V6K3
in reply to: Anonymous

An example I can think of could be bubbles underwater.

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