is a powerful extension (plugin) for Trimble SketchUp, developed by French architect and programmer Christophe B. (often known as "C. Baume" or "Fredo6"). It is widely considered an essential tool for users who need to create organic, double-curved, or complex geometric surfaces that are nearly impossible to build with SketchUp's native tools.

: Its reliability is such that it is used beyond just "pretty pictures." For example, researchers have used Curviloft to create precise 3D morphological reconstructions of the human vocal tract from medical data.

: This tool creates a surface from a closed loop of edges (even if those edges are non-planar). If you have a wireframe boundary, Skinning "fills" the void with a mesh that respects the curvature of the boundary lines. Why Professionals Choose Curviloft

: This is the classic lofting operation. You select a series of separate contours (ribs), and Curviloft skins them with a smooth surface. It is perfect for boat hulls, airplane wings, or organic furniture.

The extension consists of three primary tools, each serving a specific modeling function :

: Curviloft works seamlessly with other "FredoTools," such as Joint Push/Pull (to give your thin skins actual thickness) and Curvizard (for cleaning up the edge segments before lofting). Practical Use Cases

Curviloft is available through SketchUp's Extension Warehouse or via the popular plugin manager, SketchUcation. It is a paid extension (typically $20-30 USD), though a trial version is often available. It is maintained and updated by Fredo6, who provides extensive documentation and video tutorials.