About Curve Fitting

Curve Fitting is a Blender add-on that smooths uneven vertex arrangements while keeping the original shape intact. When a set of connected vertices is selected, the add-on projects them onto a polynomial curve or surface calculated from the selection, automatically choosing between curve and surface. The Curve Degree parameter controls the polynomial degree up to 1000; higher values fit more complex geometry but reduce simplicity. Ends Weight (default 10) and Border Weight (default 1) influence how strongly start/end points or surface boundaries resist movement. The tool is accessed from the right‑click context menu or the Vertex header menu. Because the algorithm operates only in Cartesian coordinates, shapes that overlap when projected—such as circles or spirals—may not process correctly. Version 0.3.0 introduced surface fitting capability.

Features

• Moves selected vertices onto a curve or surface approximated by a polynomial, with the choice between curve and surface determined automatically from the selection
• Curve Degree sets the polynomial degree, up to a maximum of 1000; higher degrees fit more complex shapes at the cost of simplicity
• Ends Weight adjusts how hard the start and end points of a selected vertex sequence are to move on curves, defaulting to 10 with a minimum of 1
• Border Weight adjusts the immovability of boundary points for surfaces, defaulting to 1 with a minimum of 1
• Runs from the right-click context menu or the Vertex header menu after selecting connected vertices
• Version 0.3.0 added surface fitting

Best for

Blender modelers who need to clean up uneven vertex spacing without altering the overall shape of their mesh.