Atemraum
Atemraum is a kinetic light installation for the outdoor area of the Poolbar Festival, consisting of 50 luminaries. Based on the physical phenomenon of diacaustics, a reflective membrane is continuously reshaped by air currents, creating water-like projections that unfold in slow, organic, breathing movements across the roofs of the festival’s five wooden pavilions.



The installation was conceived in parallel with the architectural project during the Poolbar Generator Labs in February 2026 and subsequently further developed, produced, and assembled until the festival opening on July 9.





This year’s pavilion architecture is defined by a series of folded roof structures resting on slender supports, creating the impression of floating forms above the festival grounds. The light projections respond to this architectural movement and extend it with a fleeting, constantly changing layer.


Rather than relying on digital animation, Atemraum embraces the unpredictability of mechanical processes to create a calm, breathing rhythm that evokes the movement of water. The installation makes the invisible forces of air, movement, and reflection perceptible, translating them into a poetic spatial experience. Through the interplay of light, material, and architecture, the work creates a moment of deceleration, inviting visitors to perceive their surroundings more consciously and experience the space as an evolving.
Credits
- Concept & Prototype: Roland Batroff, Leon Dönch, Tobias Kauer, Joachim Rettenbacher, Annika Zehnder (participants of the Poolbar Generator Light Art Lab, led by VOLNA)
- Development & Production: VOLNA, Joachim Rettenbacher, Roland Batroff, Annika Zehnder
- Guest Critique: Heller & Dimmer
- Production Support: 1zu1scale GmbH, Neutrik AG
- Special Thanks: Andreas Hölldorfer
- Supported by: Culture Moves Europe, a project funded by the European Union and Goethe-Institut. This work was produced with the financial assistance of the European Union. The views expressed herein do not necessarily reflect the official opinion of the European Union
- Camera: Ira & John
- Video: Polina Korotaeva
- Music: Oliver Bierman – :ekon:OB:
- © VOLNA (2026)