Curvature of every bounce segment (Penner's 7.5625).
Each of the four segments of bounceOut is the same parabola scaled by
this factor; together with BOUNCE_SEGMENT_DIVISOR it makes the
segment boundaries meet at value 1 (a bounce touching the floor).
Curvature of every bounce segment (Penner's
7.5625).Each of the four segments of bounceOut is the same parabola scaled by this factor; together with BOUNCE_SEGMENT_DIVISOR it makes the segment boundaries meet at value 1 (a bounce touching the floor).