SIGGRAPH 2008 > For Attendees > Design & Computation > Shape Grammars: Ice-Rays

Shape Grammars: Ice-Rays

Theme: Future History and SIGGRAPH Core

Ice-rays are a type of traditional Chinese lattice used in ornamental window grilles. They form irregular patterns that suggest cracking ice on still water. Straight lines meet longer lines in myriad ways.

Shape grammar rules for ice-rays are defined in two equivalent schemas: x -> div(x) and x -> x' + x'', where x, x', and x'' are triangles, quadrilaterals, or pentagons, and div(x) divides x into x' and x''. The ice-rays in this exhibit are made using both traditional joinery and a CNC milling machine.

George Stiny
MIT Department of Architecture

Christopher Dewart
Massachusetts Institute of Technology

This project was funded in part by a Director's Grant from the MIT Council for the Arts.