NIF Objects | Compound Types | Enum Types | Basic Types | File Versions
| Name | Type | Description |
|---|---|---|
| Velocity | Vector3 | Particle velocity |
| Unknown Vector | Vector3 | Unknown |
| Lifetime | float | The particle 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 |