Work / The Alien Tree · IAC Paris
Case study · Interactive sculpture
A treewith senses.
Four metres of otherworldly sculpture for the world's biggest space congress — a tree that sensed you coming, sang when you touched it, and hummed through the seats grown out of its roots.
The brief
Buble Studios wanted to land IAC delegates on an alien exoplanet — a portal to another dimension, and a living tree growing in the strange world on the other side. The tree was the world's anchor: something people would cross the hall for, sit under with a coffee, and not quite believe. It had to run all day, every day, for five days. (The portal itself has its own story — the Infinity Cave.)
A sculpture with senses
A twisting trunk traced in addressable LED, a pale canopy that gently swayed overhead, and seating grown straight out of the roots. The light breathed, shifted and bloomed — but the tree's real trick was that it noticed you.
Sixteen tendrils ran from the treetop to the floor. Eight musical tendrils fanned out from the canopy like the strings of an instrument — step inside the fan and touch one, and it played, each with its own controllable tone, so delegates stood there composing chords with a tree. Another eight hung straight down, tipped with glowing light-balls — each housing its own LED, a tiny speaker and a LiDAR sensor — walk up to one and it sensed you, sang, and shied away upwards like something alive.
Sit on the roots and the tree got you too: subwoofers under the seats let you feel its hum, hidden speakers carried a calming score, and built-in humidifiers breathed scent into the air. Light, sound, bass, motion and smell — a sculpture running on senses, holding people of every age under it for the whole five days.


How it was made
- 01
Bespoke fabrication
A one-off — sculpted, built and finished from scratch to look like nothing else in the hall, and to pack down, travel and rebuild on the stand.
- 02
Addressable LED, mapped
Every pixel placed and mapped by hand, so colour and motion flow through the trunk, branches and tendrils as one continuous, controllable surface.
- 03
Sensors, sound & touch
LiDAR in every light-ball, touch sensing in every musical tendril, speakers hidden through the canopy and subwoofers under the seats — the tree didn't play a loop, it responded to people.
- 04
Electronics in-house
The controllers, wiring and effects were all ours — designed and programmed in-house, so the tree on the stand matched the tree in the concept, exactly.
On the stand



Credits
- Client
- Buble Studios
- Produced with
- Universal Live
- Event
- International Astronautical Congress, Paris
- Sculpture, sensors, sound, LED & electronics
- HALF GREY BEAR