void Update()
{
// List<Vector3> pathPos = new List<Vector3>();
// for (int n = 0; n < animPath.keyframes.Length; n++){
// Vector3 pos = animPath.keyframes[n].position;
// pathPos.Add(pos);
// }
// path = pathPos.ToArray();
if(path == null || path.Length < 1){ return; }
Shape sp = new Shape();
sp.moveTo( path[0] );
for(int n = 1; n < path.Length-1; n++)
{
Vector3 pos = Vector3.Lerp( path[n], path[n+1], 0.5f);
sp.curveTo( path[n], pos );
}
Vector3 posC = Vector3.Lerp( path[path.Length-2], path[path.Length-1], 0.5f);
Vector3 posEnd = path[path.Length-1];
sp.curveTo( posC, posEnd );
pathInfo = new PathInfo(sp.commands, sp.data);
DrawLinePoints();
//
Point3D _p3d = pathInfo.lengthToPoint(t_length);
p3D = new Vector3(_p3d.x, _p3d.y, _p3d.z);
}