is there a standard method for simulating a light bulb? like if you could see the source of a light in a room - a bulb or halogen light for example. could you put a maya light in it, and have the light react the same way? i want to make a halogen light, the long kind on ceilings. what's the best way to mimic that kind of light source? the result sholud be a rectangular area lit up, as opposed to circular...