5

Start 1–4: Sets the starting point for the sheet wave. Experiment with these controls to
find wave shapes.
End 1–4: Sets the ending point for the sheet wave. Experiment with these controls to
find wave shapes.
Offset: Sets the coordinates of the center of the sheet. Coordinates are calculated from
the center of your object, which is the coordinate origin.
Brightness: Sets the brightness of the sheet.
Color: Picks the color of the membrane. Click the disclosure triangle to display Red, Green,
and Blue sliders for more precise color selection.
HUD Controls
The HUD contains the following controls: Speed, Start 1–4, End 1–4, Offset, Brightness,
and Color.
Noise
The Noise generator creates a random, colored static pattern. To make animated noise,
you can keyframe the Random Seed parameter in the Noise HUD or Inspector. When
filters are applied to an animated Noise generator, you can create unique textures. In the
second image below, the Stripes distortion filter is applied to an animated Noise generator
to create a vibrant, electric light-type texture.
Default Noise generator Noise generator with applied Stripes filter
Parameters in the Inspector
Random Seed: Because each seed value creates a different noise image, modifying this
value over time yields a constantly changing noise pattern. The easiest way to see and
use the Random Seed parameter is to add a Ramp behavior to it (in the Parameter behavior
category), then ramp from a very small random seed value to a very large random seed
value over time.
HUD Controls
The HUD contains the following control: Random Seed.
965Chapter 18 Working with Generators