Graphics Reference
In-Depth Information
For the rest of the ambient lighting,
we're going to build a rig of six shadow
buffered spot lamps. The goal is to make
lamps that have low levels of illumina-
tion, with very soft shadow settings, to
simulate the way that light bounces off
of all the walls, the floor, and the ceiling
in an enclosed space.
Figure 5.27
shows
the settings for one of these spot lamps.
Energy is low: 0.05. The lamp itself is
set far away from the room, just like the
shadow-generating lamp in the outdoor
example. The cone, Clip Start, and Clip
End are kept as small as possible, while
still including the contents of
the room. The special trick
here is to set the
Clip Start
just inside the nearest wall. If
you are working on the spot
lamp that shines from above,
you want the Clip Start indi-
cator just
below
the ceiling.
What this does is cause the
lamp and shadow to actually
shine “through” the ceiling.
Figure 5.25
Outdoor lighting.
Other settings of importance
are
Falloff: Constant
, just
like the outdoor example.
Crank
Softness
up to some-
thing like 20.0. We don't
want distinct shadows, just
suggestions to give some
volume to the room. In our
example, we've also used the
shadow color feature to set
shadows to a medium gray,
instead of completely black.
If your room is relatively
square, you can make a single
lamp for one of the walls,
Figure 5.26
A standard indoor lighting setup, appropriate to animation.
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