/// <summary>
/// Will return the list of subpoint from start to end ...
/// by default will use substep from MeshManager
/// </summary>
/// <param name="subStepX">substep in X, if is not provided will use substep from MeshManager</param>
/// <param name="subStepZ">substep in Z, if is not provided will use substep from MeshManager</param>
/// <returns></returns>
List <Vector3> RetOneDirectionList(Vector3 start, Vector3 end, float subStepX, float subStepZ)
{
float epsilon = 0.001f;
//find the common axis.
H axis = RetCommonAxis(start, end, epsilon);
//then we invert the axis bz that the one I will work on. The one is not common
axis = invertAxis(axis);
float min = UMath.ReturnMinFromVector3(start, end, axis);
float max = UMath.ReturnMaxFromVector3(start, end, axis);
float subStep = Mathf.Abs(RetSubStep(axis, subStepX, subStepZ));
//this is set only for X and Z
List <Vector3> res = new List <Vector3>();
res = ReturnFromMinToMax(axis, subStep, min, max, start);
return(res);
}