internal static Vector3 EvaluateSplineSegmentNormal(SplinePoint pointA, SplinePoint pointB, float t)
{
// Evaluate the normal for value t between points A and B
return(((6.0f * (t * t)) - (6.0f * t)) * pointA.position + ((3.0f * (t * t)) - ((4.0f * t) + 1)) * pointA.GetHandle(Direction.Forward)
+ ((-6.0f * (t * t)) + (6.0f * t)) * pointB.position + ((3.0f * (t * t)) - (2.0f * t)) * pointB.GetHandle(Direction.Backward));
}