Fast Climate-Based Glare Analysis and Spatial Mapping

It is currently impractical to predict glare in buildings under a year's worth of sky conditions, let alone for multiple locations in a room, due to the time required to render each view. We introduce a method to calculate daylight glare probability (DGP) that replaces rendered images with view factors to a discretized sky dome for direct lighting. Our method accurately predicts DGP under a year's worth of climate-based skies on a grid of sensor points in a matter of minutes. Using conventional DGP simulation, this calculation would take 4600 core hours, or 133,000 times longer than our method.