Game Development Reference
In-Depth Information
copyrighted footage with fantastic colors. With a Radius value of
50, only the basic composition of the footage remains, along with
the colors (Fig. 12.52).
Figure 12.52 Taking the Radius
value to 50 creates a cool blur
effect that leaves colors and basic
form intact.
The Noise Effect
The Noise effect should be familiar to most Photoshop users.
It mainly just adds noise. This noise can be used in a way simi-
lar to the grain created by the Add Grain effect—to add noise to
footage. This effect renders so fast that it's almost imperceptible,
but it also doesn't allow you much control over the noise like the
Add Grain effect does. Because it autoanimates, the noise created
by the Noise effect can be used for TV noise, It can be used as the
foundation for textures. Note that Fractal Noise can also be used
for these purposes. However, although Fractal Noise will give you
greater control over properties, the Noise effect is much faster to
set up and render.
Let's start fresh with a new composition. Create a new black
solid layer, and apply the Noise effect to it. By default, the Noise
effect doesn't make any obvious changes to your layer. To add
noise, increase the Amount of Noise value. If you're adding noise
to simulate fi lm grain, this should be a very low number—per-
haps 10 or less. So that the results are obvious, I'm going to take
the Amount of Noise value to 100% (Fig. 12.53).
I only use colored noise on rare occasions for this effect. Even
when simulating fi lm noise (which often contains color); it just
feels a little too colorful. You can create noise that is only black
and white by deselecting the Use Color Noise checkbox. Now it's
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