xpAvoid changes particle direction to avoid other objects in the scene.

It can also be used to kill or freeze particles.

Object Properties

xpAvoid Object tab menu.

Enabled

Checking this box activates xpAvoid.

Mode

Set at Independent, by default.

You can change this to Action-Controlled.

Independent Mode

In this mode, particles will be affected if they come into the field of effect of the modifier.

Action-Controlled Mode

When in the Action-Controlled Mode setting, the modifier will only act on a particle when told to do so by an action.

Detection Distance

This is the distance, in scene units, at which the particle will detect that there is an object to be avoided.

The shorter this distance, the closer the particle will get to the object before starting to turn to avoid the object.