cubicBezier
Creates an easing based on the given control x,y pairs, where the anchor points are at [0,0] and [1,1].
Parameters
x1
the first control point x
y1
the first control point y
x2
the second control point x
y2
the second control point y
Creates an easing based on the given control points, where the anchor points are at [0,0] and [1,1].
Parameters
control1
the first control point
control2
the second control point