I think the easiest way to do this would be to use an image map to a 
png, with the palatted colors keyed to different levels of transmit.

Mark M. Wilson wrote:

>Has anyone seen examples of stained glass windows in their "travels"
>through the world of ray tracery?  I'm working on a virtual cathedral
>project and I'd like to get some ideas about how to do the windows, esp.
>the right degree of opacity/translucence.
>THanks for anything,
>Mark M. Wilson
>

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