This is the bread and butter. You select multiple profile curves (circles, rectangles, custom splines) in sequence, and CurviLoft creates a skin that flows through all of them.
(Skin between curves)
This is the "wild card" of the group. It is designed to generate a surface from a complex wireframe, essentially filling in the "holes" in a web of lines.
Curviloft consists of three primary tools used to create organic or complex curved geometry: Loft by Spline
is a premier SketchUp extension created by legendary developer Fredo6 that revolutionizes how designers build organic skins, complex curves, and parametric geometry. While SketchUp excels at hard-surface modeling, boxy architecture, and straight lines, it historically struggles with fluid, non-uniform shapes. Curviloft bridges this gap, allowing you to bridge disparate contours and generate beautiful, clean meshes with just a few clicks.