trailData | The Trails to apply to the Particle System. |
Use this method with the results of an earlier call to ParticleSystem.GetTrails, in order to restore the Particle System to the state stored in the Trails object.
To fully restore a Particle System to a previous state, use this method along with ParticleSystem.SetParticles and ParticleSystem.SetPlaybackState.
Additional resources: GetTrails, SetParticles, SetPlaybackState.