Ah yea, once a particle is deleted it's gone for good.
An alternative would be to send particles to an event with no display/mesh operator when they're inside a volume, then in that event have an "outside volume" surface test that sends them back to the original event. That way particles will only be visible/renderable when outside the volume. And looping events like that is perfectly fine in tyFlow.
An alternative would be to send particles to an event with no display/mesh operator when they're inside a volume, then in that event have an "outside volume" surface test that sends them back to the original event. That way particles will only be visible/renderable when outside the volume. And looping events like that is perfectly fine in tyFlow.