Trace

Trace closes Nohlab's FLOW exhibition at AKM Istanbul. It is the finale room where visitors steer sound and image with their own movement, leaving a momentary mark on a future-facing landscape. GATE and MOMENT earlier in the route are sequential experiences; Trace is the only fully interactive chapter.

My work sat on the creative technology and visualization side of that interaction. Three LiDAR sensors had to be mapped and calibrated in 3D before the room could respond accurately. Visitor position and trigger data traveled over OSC to Max for sound design; the visual layer lived in TouchDesigner, with welcome and interaction stages that shifted as people entered the space.

The engineering question wasn't novelty. It was feel. Body movement had to guide visuals and audio without perceptible lag, without the slight disconnect that breaks immersion in sensor-driven rooms. The compensation across sensors, projection, and playback was the part I focused on making invisible.

What visitors experienced was immediate: step in, the room adjusts, movement becomes input. Behind that simplicity sat calibration work that made a large architectural zone feel responsive rather than technical.