Catena parametric Voronoi ring worn on a finger, chrome finish on a red backdrop
All Work

Parametric Design

Catena

A Voronoi ring, generated not drawn

RoleComputational design · rendering
ContextRhino / Grasshopper coursework, SFSU
PipelineRhino → Grasshopper → Blender
ScaleSmall-object / jewelry

01 The Premise

The jewelry market is saturated with derivative, hand-made work.

Most jewelry is still sculpted by hand and cast, which makes it hard and slow to produce something genuinely intricate and novel. Catena approaches that saturation from the other direction: procedural, parametric design as the actual design method, using the software to make forms that would be impractical to model by hand.

The goal was a piece that is both beautiful and computationally native, a form that could only really come from a generator.

Voronoi cellular texture detail
The Voronoi cell field that defines the ring's surface.

Catena dimensions and Grasshopper generation diagram
A Grasshopper file wraps a Voronoi texture around a curved surface, sized to an average finger.

02 Method

A node generator, not a sculpt.

I built a Grasshopper node-based generator that maps a Voronoi cell pattern onto a curved surface and extrudes it into a solid, producing a spider-web sleeve sized to an average finger. Because the form is parametric, the cell density, the surface, and the extrusion are all variables I could tune rather than geometry I had to redraw.

I brought the model into Blender to develop material treatments and landed on a chrome finish for maximum visual contrast against the cellular structure. Feedback loops with jewelry enthusiasts, artists, and designers drove the parameter choices.

·Rhino ·Grasshopper ·Blender ·Parametric / Procedural

03 The Piece

Catena ring, chrome Voronoi structure on a red pedestal
Chrome finish, sized to an average finger, with a supporting brand identity to package it as a product.