The amount by which the velocity of the cell can vary. Animatable.
- iOS 5.0+
- macOS 10.6+
- Mac Catalyst 13.0+
- tvOS 9.0+
The range specifies the mean amount the initial
velocity value change.
The default value of this property is
Setting Emitter Cell Temporal Attributes
The lifetime of the cell, in seconds. Animatable.
The number of emitted objects created every second. Animatable.
The speed at which the scale changes over the lifetime of the cell. Animatable.
The initial velocity of the cell. Animatable.
The x component of an acceleration vector applied to cell.
The y component of an acceleration vector applied to cell.
The z component of an acceleration vector applied to cell.