Apple Motion 3 - Manual (Page 722)

722 Chapter 8 Working with Particles
Tile Offset (Rectangle, Circle, Image, Box, Sphere): This parameter appears when Tile
Fill is chosen from the Arrangement pop-up menu. Values from 0 to 100% offset the
rows toward the right, and values from 0 to –100% offset the rows toward the left. A
value of 50 or –50% creates a “brickwork” pattern.
Ranks (Box, Sphere): When Tile Fill or Outline (Box only) is the selected Arrangement,
this parameter specifies the number of points in Z space on a grid over the selected
shape from which particles are emitted.
Twists (Spiral): A slider that defines the number of turns in the spiral. The default value
is 0.25.
Number of Arms (Burst or Spiral): A slider that defines the number of branches from
which particles are emitted. The default value is 3.
Amplitude (Wave): A slider that defines half the distance from the highest point to the
lowest point in the wave. Higher values result in more extreme waves.
Frequency (Wave): A slider that defines the number of waves. Higher values result in
more waves.
Phase (Wave): A dial that defines the degrees of the offset of the waves from the start
and end points of the path. When set to 0 degrees (default), the wave begins and ends
at half the distance from the highest point to the lowest point in the wave. When set to
90 degrees, the wave begins and ends at the highest point in the wave. When set to 90
degrees, the wave begins at the lowest point in the wave. When set to 180 degrees, the
waves are the same as 0 degrees, but inverted.
Damping (Wave): A slider that progressively diminishes the oscillation of the wave.
Positive damping values diminish the wave forward (from left to right); negative values
diminish the wave backward (from right to left).
Spiral emitter shape set to default Number of
Arms and Twists Spiral emitter shape with Twists set to .70