nxPush

Overview Video

nxPush pushes particles away from one another until they get to a defined distance.

Object tab

Distance Mode

Set to Absolute by default.

The alternative setting is Particle Radius.

Absolute

The distance is a set value.

In this animation, Distance Mode is set to Absolute, pushing particles 10cm away from each other.

Particle Radius

Here, the distance is taken from the individual particle radius.

Adding radius variation in the emitter setting will get the most out of this parameter.

Animation showing Distance Mode set to Particles Radius, taking all available particles into account.

Distance

Only available if the Distance Mode is set to Absolute.

Any particles which are within this distance from each other will be pushed apart by, and to, this amount.

By default, this is set to 10cm.

Animated Distance value increasing from 0 (zero) cm to 9cm, then to 40cm.

Strength

Increasing the Strength setting will speed up the pushing apart process.

Animating the Strength value from 1% to 100%, increasing the push speed.

Iterations

The default setting of 5 should suffice in most scenes.

You can increase this to improve the accuracy of the simulation.

Only Same Group

Regardless of how many groups there are affected by the modifier, if this box is checked, each particle will only be pushed away from particles in the same group.

In this animation, the Only Same Groups option prevents particles of different groups pushing each other away. Orange and blue (outlined) particles are each using their own separate particle group.

Groups Affected tab

Groups

To specify the group, drag and drop the desired Group object into this field.

This setting is useful if you want to ensure that the spawned particles are, or are not, affected by nxPush.

Mapping tab

The modifier’s settings can be mapped to particle data.

Use the dedicated manual page, below, for instructions on how this works.

Mapping

Fields tab

You can use the Fields options to control where nxPush operates.