Background Material: DH-II chapter 13 (to be released in 2016) | MIT lecture: Visual Comfort and Occupant Behavior
The goal of this assignment is to conduct a comprehensive glare analysis of a daylit space such as the one you simulated during earlier exercises. In order to guide you through the exercise, it is recommended that you follow the detailed video tutorial DIVA Tutorial 03 - Annual Glare .. 1. Annual Glare Analysis As a first step, select one or several view points within a scene in which you would like to study the appearance of discomfort glare over the course of the year. The analysis should result in a temporal glare map such as the one shown below for a workplace near a south-facing window in Boston. The map shows that intolerable and disturbing glare tend to appear during mid-day winter months when the sun is lower in the sky.
2. Point in Time Analysis Based on the previous step, conduct a point-in-time glare analysis to locate the source of the glare at different times in the year. As an example, the image below shows a fish-eye visualization of the view point from the annual glare map above on October 21 at noon under clear sky condition. The annual glare map indicated glare in the space at this time of year. As one would expect, the glare is caused by direct sunlight in the field of view. The next possible step for a designer would be to either modify the design by adding static shading or to introduce dynamic shading (next exercise).