Game Development Reference
Figure 9.38 Here, the
Stroke>Profi le value is set to
Sawtooth In, which causes the
inside edge of the stroke to have
a slight feather.
Using Another Layer as a Wave Shape
Another of the attractive features of Radio Waves is that you
can use either a mask, or the contours of another layer for the
shape of emitted waves. In the Radio Waves.aep project you'll
fi nd in the Chapter 9 folder of the exercise fi les, you'll see the
Radio Waves layer in the Radio Waves comp. This is an example
of a solid layer that demonstrates the Radio Waves effects
I've illustrated in the previous fi gures. If you turn off that
layer, you'll see two other layers: the face of a person asleep
(an Illustrator drawing of a person's sleeping face), and sheep.
psd (a raster outline of a sheep). We're going to use the Radio
Waves effect to make this slumbering vector guy count sheep
in his sleep.
Make sure that the visibility of the Radio Waves layer is off,
and then turn on the visibility of the face-asleep layer. Then
create a new solid, place it on top of the face-asleep layer in
the layer stack in the Timeline panel, and then apply Radio
Waves to the new solid. The solid background is gone, and
you will see the waves composited over the the sleeping face
( Fig. 9.39 ).
Next, in the Stroke area, We're going to change the Color
value from its default blue, to a sheep-like white, or light gray.
Then, change the Wave Type drop down from Polygon to Image
Contours. This property tells Radio Waves where to look for the
wave shape. By default, it's set to the polygon that it creates. We
change it to Image Contours because we want to use the outline
of the sheep layer as the wave.
Once Image Contours is selected as the Wave Type, the
Polygon area is grayed out, and the Image Contour area becomes