2010

Table Of Contents
axis within the volume. For a Cone Volume Shape, the central axis is the
positive Y axis:
Using the axis attributes, you can specify that the particles:
move in a direction roughly parallel to the axis toward or away from the
point of the cone (Along Axis)
radiate outward or inward relative to the axis (Away From Axis)
swirl around the axis (Around Axis)
move in a direction based on a combination of these directions
By setting Along Axis to -1, the particles move toward the point of the
cone. (A positive value would move particles in the opposite direction.)
In the next step, youll flip the cone 180 degrees so the aim of the cone
and particles is upward.
By using 0 for the Away From Axis value rather than the default value of
1, the particles will not radiate away from the axis.
Note that you can use larger or smaller values for the Axis attributes to
intensify or diminish movement.
Magnitude specifies the strength of the volume axis field. The greater the
value, the more force is exerted on the particles.
540 | Chapter 10 Dynamics