2009

Timing group
On Time/Off Time The numbers of the frames in which the space warp begins
and ends its effect. Because Push moves the particles to which it's applied over
time, no keyframes are created.
Strength Control group
Basic Force The amount of force exerted by the space warp.
Newtons/Pounds This option specifies the units of force used by the Basic
Force spinner.
A pound is about 4.5 Newtons, and one newton is one
kilogram-per-second-squared. When Push is applied to particle systems, these
values have only subjective meaning because they depend on the built-in
weighting factors and time scaling used by the particle system. However, when
used in a dynamics system, the value listed is precisely the value used.
Feedback On When on, the force varies depending on the speed of the affected
particles relative to the specified Target Speed. When off, the force remains
constant, regardless of the speed of the affected particles.
Reversible When on, if the particle's speed exceeds the Target Speed setting,
the force is reversed. Available only if you turn on Feedback On.
Target Speed Specifies the maximum speed in units per frame before the
Feedback takes effect. Available only if you turn on Feedback On.
Gain Specifies how quickly the force adjusts to approaching the target speed.
If set to 100 percent, the correction is immediate. If set lower, a slower and
"looser" response occurs. Available only if you turn on Feedback On.
NOTE Setting Gain above 100 percent can result in over-correction, but is
sometimes necessary to overcome damping from other system settings, such as
IK damping.
Periodic Variation group
These settings introduce variations into the force by affecting the Basic Force
value randomly. You can set two waveforms to produce a noise effect.
Enable Turns on the variations.
Period 1 The time over which the noise variation makes a full cycle. For
example, a setting of 20 means one cycle per 20 frames.
Forces | 2695