This movie has two parts: lofting closed curves, and lofting open curves.

The closed curves have 56, 32, 8, and 8 control points, respectively. The curves are lofted using three different settings on tsLoft: Minimal, Moderate, and Exact. They are also lofted using Rhino's loft command.

Using tsLoft (Minimal) the curves are lofted, each one maintaining its original number of control points. This does not give an exact fit to the curves, but gives you a minimal number of control points that leaves the surface easy to work with.

Using tsLoft (Moderate) each curve's number of control points are extended to the next curve. This leads to a closer fit to the original curves, but keeps the number of control points down as well.

With tsLoft (Exact) each curve's number of control points are extended two curves away. This leads to an exact fit. The total number of control points is still less than or equal to a NURBS loft.

Here, a NURBS loft and a T-Splines Minimal loft are compared. Again, the T-Splines benefit is that high detail can be maintained in part of the loft without pushing the detail across the whole loft.