3D & SimulationParticles
Kill Box Effector
Kills particles inside a region; they respawn at the emitter.
The Kill Box Effector removes any particle that enters its field. Use it to recycle particles that leave the scene.

- Its region is the shared Field block
- Found in the node graph under Particles → Effectors
The image on the right is the example patch itself. Drag and drop it onto the app, or load it with File → Load, to open the full graph. The field turned on at its default sphere.
Inputs and outputs

| Port | Type | Purpose |
|---|---|---|
| Effectors In | Effector | The previous effector in the chain, if any. |
| Field Image | Texture | A texture read by the Image field shape. |
| Origin Object | Surface | A Null to parent the effector to. |
| Effectors Out | Effector | Wire it into the next effector, or into the Particle System's Effectors port. |
Parameters
This effector has no controls of its own. Its kill region is the Field block: turn Field on, then set Field Shape, Field Size, and Invert Field to kill outside the region instead.
Field
- Field (default off) — limits the effector to a region. Field Shape (Sphere, Box, Plane, Image), Field Size (default 3), Falloff (default 0.5), Inner Radius, Invert Field, Field Follows Mouse, and Image Channel for the Image shape. The Field Position / Heading / Pitch / Roll / Scale block places it.
Every slider has a per-parameter animation bar, so it can be animated, audio driven, or MIDI mapped.
Examples
Recycle at the floor — Field Shape Plane below the scene.
Troubleshooting
The node appears to have no parameters. Its kill region is the shared field block. Turn Field on.