It also depends a LOT on the light, in interior scenes, you should turn ambient light off and work with pointlights - you can use these even in visible areas if you turn off Halo or use lamps or so... Use at least 3 lights, one as the "highlight" near the object and set your highlight with it. Use 2 other lights (spots are great) without shadows and softness about 5 to 10... Youll see the glass looks great... I cant remember who, but someone has posted a tut about that in vue here...

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