2009

The mark is slightly elevated above the contact geometry to achieve the visual
effect of the mark spot overlapping the contact geometry. This parameter is
not animatable.
Offset Variation Specifies the maximum extent of a random variation in the
actual surface offset among particles. Default=0.0.
Adjusting this value can help to alleviate rendering artifacts with overlapping
marks.
Vertex Jitter Specifies the maximum extent of a random variation in the
positions of vertices of marks created using the Box Intersection method.
Available only with the Box Intersection method. Default=0.0.
Adjusting this value can help to alleviate rendering artifacts with overlapping
marks.
Uniqueness group
The Uniqueness setting enables changing the randomization of the size/width
variation.
Seed Specifies a randomization value.
New Calculates a new seed using a randomization formula.
Materials and Mapping in Particle View
Particle Flow provides three operators for applying materials to particles. To
give the same appearance to all particles throughout an event, use
Material
Static Operator
on page 2920. If you're using a compound material such as
Multi/Sub-Object on page 5720, you can assign different sub-materials to different
particles with the
Material Frequency operator on page 2923. And to assign
materials that change in appearance over time, use the
Material Dynamic
operator
on page 2925.
Related to this is the
Mapping operator on page 2932, which lets you give the
same mapping coordinates to the entire surface of each particle in an event,
thus using a single pixel from a material to color the particles. By animating
the mapping coordinates, you can cause the particles to change color over
time. This is particularly effective with a gradient material.
The
Bitmap map on page 5795, used in conjunction with Material Dynamic,
lets you assign different frames from an image sequence to particles based on
the particle age, among other effects.
2918 | Chapter 14 Space Warps and Particle Systems