# NIF File Format Documentation

NIF Objects | Compound Types | Enum Types | Basic Types | File Versions

## Particle

particle array entry

### Attributes

Name | Type | Arg | Arr1 | Arr2 | Cond | Description | From | To
--- | --- | --- | --- | --- | --- | --- | --- | ---
Velocity | Vector3 |  |  |  |  | Particle velocity |  |
Unknown Vector | Vector3 |  |  |  |  | Unknown |  |
Lifetime | float |  |  |  |  | The particle's age. |  |
Lifespan | float |  |  |  |  | Maximum age of the particle. |  |
Timestamp | float |  |  |  |  | Timestamp of the last update. |  |
Unknown Short | ushort |  |  |  |  | Unknown short |  |
Vertex ID | ushort |  |  |  |  | Particle/vertex index matches array index |  |

### Found In

- NiParticleSystemController