Apple Motion 4 - Manual (Page 521)

HUD Controls
The HUD lets you specify the direction and speed of the Wind behavior by dragging an
arrow within a circular region. The direction of the arrow defines the direction of
movement in X and Y space, and the length of the arrow defines speed (velocity). A slider
to the right lets you adjust the scale of the HUD control, increasing or decreasing the
effect the control has over the object.
Controls direction and
speed of Wind
Adjusts scale of the HUD
control
Press the Shift key while dragging the arrow to constrain it to 45 degree angles. Press the
Command key to change the arrow’s direction without affecting its length.
When you click the 3D button, the HUD allows you to use the center arrow control to
define the direction the object is “blown” by the wind in 3D. The Speed slider (on the left
side of the HUD) lets you increase or decrease the velocity of the blown object.
Adjusts velocity of the
wind
Adjusts the direction of
the wind in X, Y, and Z
space
Note: The maximum speed you can define with the HUD is not the maximum speed
possible. Higher values can be entered into the Velocity parameter in the Behaviors tab
of the Inspector.
Related Behaviors
• Motion Path
• Gravity
• Random Motion
• Throw
521 Chapter 9 Using Behaviors