A Voronoi diagram is a mathematical concept that divides a space into regions based on proximity to points in a specific subset of the space. In simpler terms, it's a way to create a pattern of cells that are generated from a set of points.
Free plugins come with inherent constraints. First, performance: generating a Voronoi diagram with 500+ cells will lag or crash SketchUp 2019 and earlier. Solution: use lower point counts (50-150) and later use the "Subdivide and Smooth" free plugin to add complexity. Second, 3D curvature: none of the free plugins natively wrap a Voronoi pattern around a sphere. Workaround: use the MeshLab pipeline or flatten a sphere’s UV map, apply 2D Voronoi, then use "Shape Bender" (free) to wrap it back. Third, non-manifold geometry: after extrusion, you often get stray edges. Clean up with "CleanUp³" (free from Extension Warehouse). voronoi sketchup plugin free download
For years, the most reliable free tool for this specific task has been . A Voronoi diagram is a mathematical concept that
For a SketchUp user, adding Voronoi capabilities means transforming a simple extruded box into a futuristic screen wall, a lamp shade that casts dappled shadows, or a landscape pavilion that mimics leaf venation. Without a plugin, one would have to manually draw dozens or hundreds of irregular polygons—a task measured in days of tedious work. A free plugin reduces that to seconds. First, performance: generating a Voronoi diagram with 500+
Below is a guide to the best free tools available and how to download them.
TIG (a legendary scripter in the SketchUp community) released a suite of tools, including a "Voronoi + Conic Curve" script. Although originally hosted on SketchUcation, it remains freely downloadable. This tool generates 2D Voronoi cells based on user-placed points or a grid. Its genius lies in the "Conic Curve" option, which rounds the sharp cell edges into smooth, organic blobs—mimicking soap bubbles. For 3D use, you manually select each cell face and use SketchUp’s native Push/Pull tool. It is stable, lightweight, and works without external libraries. The downside: it is purely 2D and requires manual extrusion, making complex 3D Voronoi spheres impossible.