Tree, by Simon Heijdens, is projected onto several facades in the city, including dark corners and alleys. The main location has a 3×8 meter drawing of a tree projected onto the facade of a building. The branches and leaves move slightly, with an intensity that depends on actual wind gusts. The tree also reacts to sound (the leaves fall from noise), and is sensitive to what happens to other trees in the city.
Simon Heijdens (Portfolio Site)
Ian's Blog 
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