Description
Easing equation for a quartic (t^4) ease-in/out, accelerating until halfway, then decelerating.
Use value, *value, *kr or *ar, all with a Float argument t between 0.0 and 1.0. If t is below or above this range the output will be undefined.
Instance Methods
.value
Arguments:
| t |
a Float between 0.0 and 1.0. |