The lifetime of the cell, in seconds. Animatable.
- iOS 5.0+
- macOS 10.6+
- Mac Catalyst 13.0+
- tvOS 9.0+
The lifetime of the cell will vary by a random amount with the range specified by
The default value of this property is
Setting Emitter Cell Temporal Attributes
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 amount by which the velocity of the cell can vary. 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.