BezierCurves.BezierCurve3D.GetBinormal C# (CSharp) Method

        public Vector3 GetBinormal(float time, Vector3 up)
        {
            BezierPoint3D startPoint;
            BezierPoint3D endPoint;
            float timeRelativeToSegment;

            this.GetCubicSegment(time, out startPoint, out endPoint, out timeRelativeToSegment);

            return BezierCurve3D.GetBinormalOnCubicCurve(timeRelativeToSegment, up, startPoint, endPoint);
        }