public Quaternion PathDirection(float t)
{
int requestedSegment;
if (t >= 1f)
{
t = 1f;
requestedSegment = SegmentCount() - 1;
}
else
{
t = Mathf.Clamp01(t) * SegmentCount();
requestedSegment = (int)t;
t -= requestedSegment;
}
Vector3[] segmentPoints = LocalSegment(requestedSegment);
Vector3 tangent = Bezier.CubicTangent(segmentPoints[0], segmentPoints[1], segmentPoints[2], segmentPoints[3], t);
return(Bezier.CubicOrientation(tangent, Vector3.up));
}