This page links to 23 QuickTime movies corresponding to 6 plan views and 17 perspectives of the New York Times tower building, with split views showing the 6th and 26th floors, simultaneously. Each animation runs through a timelapse daylight simulation of the Summer solstice, Fall equinox, and Winter solstice (6/21, 9/21, and 12/21) at hourly intervals. Images and illuminance values were generated using LBNL's Radiance lighting simulation and rendering system. Shades were controlled to prevent direct solar from penetrating more than 3 feet from the window wall at any point except the north and south stairwells, where direct solar was allowed 12 foot penetration. (This algorithm was modified slightly between the equinox and solstice runs, such that the equinox animations also permitted 12 penetration at the windows adjacent to the stairwell. This made little actual difference to the results, so the equinox runs were not recomputed after the change.)
Click on a view to see the corresponding timelapse animation.
