As Half Life is finally available on the Mac, thanks to Steam, we thought it was time to repost two of our favorite movies – detailing Falling Water playable in Half Life and rendered via CAD.

Fallingwater, also known as the Edgar J. Kaufmann Sr. Residence, is a house designed by American architect Frank Lloyd Wright in 1935 in rural southwestern Pennsylvania, 50 miles southeast of Pittsburgh, and is part of the Pittsburgh Metro Area. The house was built partly over a waterfall in Bear Run at Rural Route 1 in the Mill Run section of Stewart Township, Fayette County, Pennsylvania, in the Laurel Highlands of the Allegheny Mountains (Wikipedia)

The movie above by represents one of the best visualisations of Fallingwater we have seen:

Fallingwater from Cristóbal Vila on Vimeo.
The movie provides an interesting contrast to the Half Life model of Fallingwater built byKasperg. Using the Source Engine, as opposed to more traditional Architectural Software, allows the use of dynamic lighting and a real-time walkthrough of the scene in high resolution:

Falling Water by Frank Lloyd Wright in Half Life from digitalurban on Vimeo.
The movie demonstrates the quality of Half Life, and games engines in general, for visualisation using both a standard walkthrough and half way through a fly-through using the Half Life ‘Noclip‘ option.

You can find out more about Frank Lloyd Wright’s Fallingwater at


Andy is Professor of Digital Urban Systems at the Centre for Advanced Spatial Analysis at University College London.

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