Alanwake.com writes
"What platform was used?
The PC. The shots were taken in 1080p resolution (using 4xMSAA) and scaled down to 720p for web release. We are only releasing a few shots, and we wanted these to be usable for print purposes as well, therefore the higher resolution. The game looks very good on Xbox360 too but only runs in 720p.
There's cool Depth-of-Field in the Cabin shot, is this real time?
That shot is from the Cinematic Trailer. We intend to use DOF effects to enhance storytelling in the in-game cinematics, but (at least at the moment) it is done as an offline post process. Otherwise that image is fully rendered by the game engine."