catmullRom function
Do a catmull rom spline interpolation with edge0
, edge1
, edge2
and
edge3
by amount
.
Implementation
double catmullRom(double edge0, double edge1, double edge2, double edge3,
double amount) =>
0.5 *
((2.0 * edge1) +
(-edge0 + edge2) * amount +
(2.0 * edge0 - 5.0 * edge1 + 4.0 * edge2 - edge3) * (amount * amount) +
(-edge0 + 3.0 * edge1 - 3.0 * edge2 + edge3) *
(amount * amount * amount));