Instance Property

particleZPositionSpeed

The speed at which the particle’s depth changes.

Declaration

@property(nonatomic) CGFloat particleZPositionSpeed;

Discussion

The default value is 0.0.

See Also

Controlling Particle Velocity and Acceleration

particleSpeed

The average initial speed of a new particle, in points per second.

particleSpeedRange

The range of allowed random values for a particle’s initial speed.

emissionAngle

The average initial direction of a particle, expressed as an angle in radians.

emissionAngleRange

The range of allowed random values for a particle’s initial direction, expressed as an angle in radians.

xAcceleration

The acceleration to apply to a particle’s horizontal velocity.

yAcceleration

The acceleration to apply to a particle’s vertical velocity.