Instance Property
scaleSpeed
The speed at which the scale changes over the lifetime of the cell. Animatable.
SDKs
- iOS 5.0+
- macOS 10.6+
- Mac Catalyst 13.0+
- tvOS 9.0+
Discussion
The speed change is defined as the rate of change per second.
The default value of this property is 0.0
.
See Also
Setting Emitter Cell Temporal Attributes
lifetime
The lifetime of the cell, in seconds. Animatable.
birthRate
The number of emitted objects created every second. Animatable.
velocity
The initial velocity of the cell. Animatable.
velocityRange
The amount by which the velocity of the cell can vary. Animatable.
xAcceleration
The x component of an acceleration vector applied to cell.
yAcceleration
The y component of an acceleration vector applied to cell.
zAcceleration
The z component of an acceleration vector applied to cell.