scale()

function scale(
    inDuration: number,
    outDuration: number,
    ease?: Easing,
): Behavior;

Creates a behavior that grows a particle from 0 to its sampled size and shrinks it back to 0 over the specified durations.

The growing takes place during the first inDuration seconds of a particle’s lifetime, while the shrinking happens during the last outDuration seconds of the particle’s lifetime. The supplied easing is applied forwards when growing, and in reverse when shrinking.

Parameters

inDurationnumber

The duration in seconds it takes for the particle to grow from 0 to its sampled size, or 0 if it should start at its sampled size.

outDurationnumber

The duration in seconds it takes for the particle to shrink back to 0, or 0 if it should end at its sampled size.

easeoptionalEasing

How the transition progresses. Defaults to linear().

Returns

Behavior