Calculate Curvature

What is it about?

This page documents the Calculate Curvature node of the Scene Nodes system in Cinema 4D. It writes surface curvature into a weight map based on point-normal angles — a data source for masks that follow edges and creases.

This Node adds a weight map to a geometry. The values of the weight map range between 0% and 100% and indicate the angles between the neighboring point normals.

The Node calculates weight values for vertices based on the surrounding surface normal. In this example the weight information is converted to a selection using the Select by Weight Node.