Game Development Reference
In-Depth Information
Transitions that Don't Transition
As we saw with Gradient Wipe, some of these transitions create interesting effects, even without animation.
Although their names imply transition, you don't have use them for transitions only. Again, the whole theme of this topic
is to create illusions by using effects for purposes other than those for which they were intended. You can use transitions
that don't transition for vignettes, POV shots (say, through a rifl e scope), to do split screens, and much more. Don't let the
name of the effect category that limits your creativity.
Figure 20.23 The Iris Wipe effect
with two other Artbeats video
clips. Here, the Iris Points value
is 12, Outer Radius is at 560, Use
Inner Radius is selected with an
Inner Radius value of 60, and a
Feather value of 50. Here, I'm
going for a subtle result with a
not-so-subtle effect, but you can
see the 6-pointed star, centered in
the layer.
Wars movies. George Lucas used these to show the great dis-
tances of time and space between scenes.
For this example, I'm again using the Transitions.aep project
from the Chapter 20 folder. The Linear Wipe effect transitions
between clips with a simple line. You can change the transition
completion, alter the angle of the line, and feather it, and that's it.
But it is the simplicity here that makes it so appropriate. Just like
the way it was used by George Lucas, use this to create a harder
transition than a simple cut between shots. It can also be used
to transition with movement in the shot. For example, if you had
footage of someone opening a door, you could use the Linear
Wipe transition to create the illusion that they were opening the
door to the next clip (Figs. 20.24 and 20.25 ).
The Radial Wipe Effect
The Radial Wipe effect creates a wipe that goes around a
layer, like the hands of a clock. Because of this, it is often used to
communicate the passage of time. Let's say you had a nervous
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