Root is a shoe that is grown around the foot. It utilizes differential growth, the natural process when parts of a plant grow at different rates, causing the plant to curl in on itself. Root simulates the differential growth in mushrooms.
A base mesh was fed into the Differential Growth Grasshopper Definition, the definitions then cause the algorithm to grow by subdividing each surface. Naturally, the larger surfaces grew slower than the smaller surfaces (as their subdivisions were larger), causing the form to curl in on itself. I was able to control how many iterations the design grew until coming upon the final design.
The shoe was printed using a Gigabot 3D printer.