Game Development Reference
Key Out Safe. After seeing which pixels are out of compliance, you
may choose to use another color adjustment effect to tweak those
values so that you have more control over how their color is cor-
rected (Fig. 6.11).
Figure 6.11 Selecting Key Out
Safe from the How to Make Color
Safe drop down will show you all
pixels that are out of compliance
with video standards.
The last value at the bottom of the effect in the Effect Controls
panel is Maximum Signal Amplitude (IRE), which monitors the
brightness of footage. IRE is a unit of measurement, used to mea-
sure brightness in a video signal. This value sets the maximum
allowable value of brightness in your footage. You can raise the
maximum brightness further by increasing this value, but then
that can also increase the chances of creating unsafe colors when
viewed on some monitors.
Usually, when using this effect, I don't apply it to individual
layers. In my fi nal composition, I create an adjustment layer and
place it on top of the layer stack in the Timeline panel. Then I
apply the Broadcast Colors effect to the adjustment layer so that
all of the layers in the composition have broadcast-safe color.
The Change Color Effect
The Change Color effect and the Change to Color effect (that
we'll look at next) have annoyingly similar names, and identical
purposes—to change the original color to another in footage.
This is helpful for a wide variety of shooting conditions. Let's say
that you had a shot of a large crowd, and an extra in the shot was
wearing a shirt of a color that was distracting. You could use this
color changing facility to replace it with a more suitable color.