Applies a force to either Particle Systems or Dynamics Systems. The effect is slightly different, depending on the system.
Particles: Applies a uniform, unidirectional force in a positive or negative direction. When it’s a positive force, it moves in the direction of the pad on the hydraulic jack. The breadth of the force is infinite perpendicular to the direction, though you can limit it using the Range option.
Dynamics: Provides a point force (also called a point load) away from the pad of the hydraulic jack icon. (A negative force pulls in the opposite direction.) In dynamics, applying a force is the same as pushing on something with your finger.
On Time/Off Time: The times that the space warp begins its effect and ends its effect. Note that, because Push moves the objects to which it’s applied, those objects will move over time, although there are no keyframes created.
Basic Force: The amount of force exerted by the space warp.
Newtons/Pounds: These options specify 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 so much is dependent on the weighting factors built into the particle system and the time scaling used by the particle system. However, when used in the Dynamics system, the value listed is precisely the value used.
Feedback On: When this is checked, the force lessons, depending on how near the affected objects get to the specified Target Speed value (described below). When this is unchecked, the force remains constant, regardless of the speed of the affected objects.
Reversible: When checked, if the objects speed exceeds the Target Speed the force is reversed.
Target Speed: This is only used when Feedback is checked. It specifies the maximum speed before the Feedback takes effect. Speed is specified in units traveled per frame.
Gain %: Specifies how quickly the force adjusts to the approach to target speed. If this is set to 100 percent, the correction is immediate. If it’s lower, a slower and “looser” response occurs. Note that this spinner can be set above 100 percent, This will often result in overcorrection, but Gains greater than 100 percent are sometimes necessary to overcome damping from other system settings, such as IK damping, and so on.
Provides settings that introduce variations into the force by affecting the Basic Force value randomly. You can set two waveforms to produce more of a noise effect.
Enable: Check this to turn 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.
Amplitude 1 %: The strength of the variation. This uses the same types of units as the Basic Force spinner.
Phase 1: Offsets the variation pattern.
Period 2: The next three spinners provide an additional variation pattern to increase the noise.
Amplitude 2 %: The strength of the variation of the second wave. This uses the same types of units as the Basic Force spinner.
Phase 2: Offsets the variation pattern of the second wave.
Lets you restrict the Push effect to a specific range. Note that this only affects particles systems; it has no effect on Dynamics.
Enable: Check this to limit the range of the effect to a sphere, displayed as a tri-hooped sphere. The effect falls off increasingly as the particles near the boundary of the sphere..
Range: Specifies the radius of the range of the effect, in units.
Icon Size: Sets the size of the Push icon. This is for display purposes only, and does not alter the Push effect.
The Push appears as a hydraulic jack icon.