This is the scene, now note, you can alter the sliders for camera's
shutter speed and film speed, and the 3 light source's power,
and the S M R buttons undermeath can turn lights to "solo"
(so that's the only light that will show), etc
we have 3 light sources:
-the Environment light showing through the doorway (a standard
-The flourescent tube light near the doorway
-The desk lamp hovering over the deck.
Important note: Maxwell lights behave exactly like REAL lights!
their temperature, wattage and the surface area of the object
all work correctly as if they were real.
One point of this is, say you make a huge light source, a football
perhaps, and set it to have a 40 watt light power...well, 40 watts
from such a huge surface area is not gonna be very powerful and
thus be very diffuse! But if it's from a small light bulb, it
will shine bright. Thus, you must always work in real world units
Also, you have to turn on multilighting in your render settings
for it to work. It increases render time, alas, but well worth