| particles | The input particle buffer, which represents the particle state to apply to particles in this Particle System. |
| size | The number of elements in the particles array that Unity should write to the Particle System. |
| offset | The location in the particle array to start assigning particles. For example, set the value to 4 to assign particles starting with the 4th particle in the array. |
Sets the particles of this Particle System.
Setting the lifetime of a particle to a negative value will result in that particle being removed from the Particle System. Additional resources: GetParticles.