Unity Engine documentationScript ReferenceUnityEngineParticleSystemEmissionTypeDistanceEmit when emitter moves.Read time 1 minuteLast updated 6 days agoDefinition Type: Field Namespace: UnityEngine Assembly: UnityEngine.ParticleSystemModule WarningDeprecated. ParticleSystemEmissionType no longer does anything. Time and Distance based emission are now both always active. Distance = 1