2009

Location group
The Location drop-down list lets you specify where on the emitter the particles
appear. You can create a variety of emission behaviors by varying the
icon
type
on page 2832, Location setting, and direction of emission. Default=Volume.
■ Pivot Emits particles from the center of the icon.
■ Vertices For the Box and Rectangle icon types, emits particles from the
corners of the icon. For the Sphere icon type, emits particles from the six
intersections of the three circles that define the sphere. For the Circle icon
type, emits particles from the center.
■ Edges Emits particles from random points along the edges of the icon.
■ Surface Emits particles from random points on the surface of the icon.
■ Volume Emits particles from random points within the volume of the
icon.
Distinct Points Only Limits emission to a specific number of points (see Total,
below) on the specified Location type.
Emission points are still randomized; change the Uniqueness setting to alter
these.
Total Sets the number of emission points. Available only when Distinct Points
Only is on. Default=10.
Subframe Sampling When on, the operator acquires animation of the emitter
icon on a tick basis (every 1/4800th of a second) rather than a frame basis.
This provides greater precision in allowing the particle positions to follow
animation of the emitter icon. Default=off.
Uniqueness group
The Uniqueness setting lets you alter the randomization of emission points.
Seed Specifies a randomization value.
New Calculates a new seed using a randomization formula.
2852 | Chapter 14 Space Warps and Particle Systems