Game Development Reference
In-Depth Information
any lights in the scene quite yet, just take a look at the following explanations
to see what the lights do before placing any in the scene.
Point Light
Think of point lights as a single light bulb suspended in space.
Figure 7.15
shows
a point light sitting in the scene (with ambient light turned off ). There are really
two types of handles that a selected point light presents in Unity 3. The first is
the actual light source—the point from which the illumination emits. This light
source can be moved, scaled, or rotated, although since the light is emanating
from all sides, only moving it will yield any noticeable results. The second are
the Range Handles. These handles are actually just the six little yellow dots at
the intersection of the three yellow rings that surround the source. In any tool
(move, rotate, or scale), selecting these handles will increase or decrease the
falloff range of the light. The illumination from the point light will go no further
than these handles.
Figure 7.15
Point lights and its relevant handles available in the Scene window.
Tips and Tricks
These handles are really, really picky. The tip of the arrow of the cursor has
to be exactly on that handle. Takes a little practice to grab those just right,
but they are definitely more intuitive to use than the numerical range
input field in the Inspector.
The Inspector shows the other options available for the point light. Because
these are covered fairly well in the documentation, we will refrain from
covering them all here except for a few tips.
Intensity
and
range
have an interesting relationship. Intensity refers to
the brightness of the illumination, but this illumination will still stay within
the light's range.
