public void SampleDerivs(Vector3[] results, float u0 = 0f, float u1 = 1f)
{
var p0 = begin.position;
var m0 = begin.ForwardScaled();
var p1 = end.position;
var m1 = end.ForwardScaled();
int len = results.Length;
var u = u0;
var du = (u1 - u0) / len;
for (int i = 0; i < len; ++i)
{
u += du;
results[i] = Curves.CubicHermiteDeriv(p0, m0, p1, m1, u);
}
}
public Vector3 DerivAt(float u)
{
return(Curves.CubicHermiteDeriv(begin.position, begin.ForwardScaled(), end.position, end.ForwardScaled(), u));
}
