arc/sec – Uwe Rieger & Yinan Liu
LightScale II is a kinetic installation designed to facilitate the exploration of spatial digital narratives. With its slow and gentle movements, it emulates the graceful motion of a giant whale traversing a virtual ocean. This colossal structure serves as a guide, allowing visitors to detect, capture, and materialise invisible sea creatures and nautical events. Through projections on its multiple layered gauze volume, LightScale II creates a tangible and immersive experience of holographic animations. The installation consists of a 20-metre-long carbon mast construction mounted asymmetrically on a single point support. A set of counterweights maintains a delicate balance and enables the structure to oscillate through space when touched by a visitor. LightScale II incorporates a position sensor that recognises its location and movement acceleration. This information is then combined with a live-render programme, which superimposes the physical construction with projected digital animations.
Developed with the intention of exploring user engagement with spatial digital data, LightScale II represents a novel approach to navigating and experiencing multi-dimensional narratives. Merging the physical and virtual realms, it opens up new possibilities for the interaction with digital information in architectural space.
![](https://epfl-pavilions.ch/media/pages/archive/lightscale-ii/c00068e1ff-1709114698/04-epfl-pavillons-uwerieger-yinanliu-021023-f-juliengremaud-503-nr-web-1600x900.jpg)
Photo: Julien Gremaud
![](https://epfl-pavilions.ch/media/pages/archive/lightscale-ii/0bf116b4a1-1709114698/04-epfl-pavillons-uwerieger-yinanliu-021023-f-juliengremaud-466-nr-1-web-1600x900.jpg)
Photo: Julien Gremaud
![](https://epfl-pavilions.ch/media/pages/archive/lightscale-ii/60f15ee498-1709114698/04-epfl-pavillons-uwerieger-yinanliu-021023-f-juliengremaud-511-nr-1-web-1600x900.jpg)
Photo: Julien Gremaud