A red plus sign anchors a changing field of white square outlines. Made in tribute to Herbert W. Franke, the work uses geometric intersection to determine which parts of a moving grid become visible.
Provenance
Released on 22 October 2022 for Tribute to Herbert W. Franke, organized by art meets science – Foundation Herbert W. Franke.












Intersections: Addition is one of two companion software works created for the 2022 tribute to Herbert W. Franke. Its published preview reduces the work to a red plus sign on black. The live work brings this emblem into a changing relationship with a white grid.
The program translates, rotates and scales a grid of square outlines using continuous oscillations. It tests the squares against the red shape and retains those that intersect its boundary. The visible grid gathers around the cross, giving a simple operation a changing geometric form.
The companion version, Intersections: Subtraction, reverses the selection rule. Together the works turn addition and subtraction into visible procedures. They were released on Tezos as separate editions of 32, with adjustable stroke widths, layout, motion and colors. The tribute connects Gysin’s software practice with Franke’s long investigation of mathematical structures as artistic material.