Spline Patch 1.1 provides users of C4D, for the first time, with a
patch-modelling function. It adds to the list of C4D’s nurbs objects and
works in a quite similar manner. Drag and drop four splines that surround
the surface to be created in the spline patch object, rearrange them
clockwise and choose the number of subdivisions. That’s it!

When the number of subdivisions is set, many programs proceed with
generating a polygon mesh, which you can work on with certain tools. This
method is not identical to the non-modal style of Cinema 4D so we decided
to conceive our plugin as an object generator. The benefit is obvious: you
can change every parameter anytime, including shape and position of the
splines!