Instance Property

velocity

The initial velocity of the cell. Animatable.

Declaration

@property CGFloat velocity;

Discussion

The velocity of the cell will vary by a random amount within the range specified by velocityRange.

See Also

Setting Emitter Cell Temporal Attributes

lifetime

The lifetime of the cell, in seconds. Animatable.

lifetimeRange

The mean value by which the lifetime of the cell can vary. Animatable.

birthRate

The number of emitted objects created every second. Animatable.

scaleSpeed

The speed at which the scale changes over the lifetime 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.