On this pageCircle EffectSettingsKeyExpectsDescriptionradiusdoubleThe range at which particles may generatexRotationdoubleyRotationdoublezRotationdoubleangularVelocityXdoubleangularVelocityYdoubleangularVelocityZdoubleenableRotationbooleanExample 1: class: Circle category: PERSISTENT radius: 0.8