/// <summary>
/// Retrieve the source position for a given relative position (TF)
/// </summary>
/// <param name="tf">relative position</param>
/// <returns>
/// a world position
/// </returns>
protected override Vector3 GetInterpolatedSourcePosition(float tf)
{
return((Space == Space.World) ? Path.Module.Generator.transform.TransformPoint(PathData.InterpolatePosition(tf)) : PathData.InterpolatePosition(tf));
}