- Mon Jan 24, 2011 5:40 pm
#336617
well the first thing you have to do is model the thickness of the glass -- meaning there should be an empty vacuum inside the bulb with a very thin glass shell.
However it should be said up front that this is a really bad idea in Maxwell as it stands -- the reason is everything will then be lit with caustic light and will take forever to clear (if ever)... and truthfully how often does one actually see a bare light bulb. Even then if you take into account very few bulbs are made completely "clear" it is much smarter to simply assign a MXI emitter based material to the outside of the "bulb" if you need to see it... seeing into and through the bulb is not necessary in most cases.
If you are not looking at the bulb (on camera) and you are just looking for a specific lighting effect then IES emitters are a much better way to go.
That said, if you do have a need to see (and see through) the bulb itself then I would suggest modeling it as accurately as possible and using a render farm to get the high SL required.
Best,
Jason.
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