Quote - re: stained glass:  in the Reality thread on DAZ Paolo mentions you can use Lux glass + a texture in the transmission layer to get a gel light pattern.  just offering that in case it makes any sense to anyone (it doesn't to me) (yet)

If I am getting what is meant it would seem to be a bit of workaround and not really what I am aiming for.

Can you post a link for us?  I admit maybe in my caffeine deprive brain it just isn't adding up currently.

Thanks for mention in though.