Willem
Kempers

Focal Pivot

Jul 9th, 2014

Glitch is a popular term these days. Well known glitches occur when data is misinterpreted by a computer. Take, for instance, jpeg glitches: when cutting and pasting raw jpeg data you can easily mash up or recolour the original image. When removing the cable from a computer after using a beamer, it sometimes shows a 'glitched' image for a very short period of time. This got me thinking of glitching beamers and how to misinterpret one. A beamer consist of two main parts: a light source (with a small screen) to create the image, and a lens to focus the created image. In a beamer, the lens assists the light source in creating an image. I was wondering if I could purposefully misinterpret this hierarchy, and let the light assist the lens instead. Focal Pivot consists of four custom built beamers in which a lens oscillates and bends the light of an LED. It's always somewhat unsettling to encounter a glitch. I tried to channel this feeling by choreographing a set of movements for the beamers that starts off very slowly, and gains speed over time. After building up suspense the programme will randomly switch to a different choreography according to a Markov chain, breaking all of the tension.