Snowfall is a public art piece erected in Brookfield Place Toronto comprising of 3 phases : Gust, Frost and Flurry.
Gust is a series of 60 suspended and illuminated sculptures of sizes ranging from three to six feet.
Frost is a 21-foot high abstract snowflake. Internal sensors respond to touch by producing a visual effect similar to running a hand along a frosted window. The system is also connected to the building’s lighting system, and will respond to contact by changing the colour of the lights in the entire Galleria.
You can learn more in this piece here:
http://www.knotpr.com/work/brookfield-place-toronto-debuts-snowfall-new-seasonal-installation-commissioned-arts-brookfield/ and Studio F Minus other projects can be found on their website here: http://www.studiofminus.com/
Flurry, the 3rd phase is planned for 2015.