Game Development Reference
In-Depth Information
Figure 15.12 The shadow after
increasing the Distance value, as
well as increasing the opacity and
softness of the shadow.
like a blur for the shadow. Adjust the color, opacity, and softness
of the shadow to create a realistic composite.
The Radial Shadow Effect
The Radial Shadow effect appears at fi rst glance to be the iden-
tical twin to the Drop Shadow effect. But in reality, Radial Shadow
effect is more like Drop Shadow's older, cooler pro-snowboarder
cousin. Radial Shadow allows you to create a shadow as if it were
being created from a 3D light source. This is great for creating a
shadow from 3D layers onto 2D objects because 2D objects won't
accept shadows from 3D layers and lights. The Radial Shadow
synthesizes another great feature that is reserved for 3D layers:
Light Transmission. Light Transmission allows you to create shad-
ows based on the color of a layer. Radial Shadow doesn't quite get
that cool, but it will allow you to create color shadows that vary in
intensity based on the opacity of the alpha channel.
If you'd like to follow along, I've created the Radial Shadow.aep
project in the Chapter 15 folder of the exercise fi les. This contains
a red window with some variations in its alpha channel. Before
we apply the effect, let's solo the Art Window layer and choose
Alpha from the Show Channel and Color Management Settings
drop down at the bottom of the Composition panel (the icon that
looks like overlapping red, green, and blue circles). This will show
us only the alpha channel of the Art Window layer which will give
us a window (no pun intended) into what's happening with the
transparency here (Fig. 15.13 ).
The white areas indicate where the layer is completely opaque.
The two rectangles that are completely black indicate where the
layer is completely transparent. The three dark, wide bars and the
three light gray rectangles are areas of partial transparency. That's
important to remember going forward. You can now change the
channel view back to the RGB composite view and deselect solo
from the Art Window layer. Apply the Radial Shadow effect to the
Art Window layer.
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