Quote - One method is explained by BagginsBill in the attached link.

 

I guess I'll have to check that out, so thanks.

I'm not sure that's the same thing I'm talking about though. I was wondering if it was possible to do it more simply, with some sort of shader network, instead of lens tricks.

Even so, that's prettyy damn clever, although I don't have the time at the moment to study it.

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