Apple Motion 4 - Manual (Page 917)

Caustics
The Caustics generator creates an animated, simulated water surface. The size, speed,
refraction, brightness, and color of the Caustics pattern can be modified and animated.
You can use the Caustics generator to add light patterns to a project, or as the source
object for an image map.
Default Caustics generator Modified Caustics generator over an image
Parameters in the Inspector
Size: Sets the size of the shapes and spaces in the pattern.
Speed: Sets the speed of movement of the light patterns.
Refraction: Sets the refraction of the light shapes.
Brightness: Sets the brightness of the light shapes.
Color: Picks the color of the light shapes. Use the disclosure triangle to display Red, Green,
and Blue sliders for more precise color selection.
HUD Controls
The HUD contains the following controls: Size, Speed, Refraction, Brightness, and Color.
917 Chapter 15 Working with Generators