Light rays through stained glass

Anybody knows how to make ray of lights pass thru an object in 3d Studio Max 6? For example I have a dome, stained glass want to show the effect of light rays coming from above, the light rays having the colors of the stained glass.

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Keyword Spy

Have a look here: http://area.autodesk.com/index.php/forums/viewthread/15252/

And next time, you should post your question in the 3DS Max section.