Conference Paper
Real-Time Visual Comfort Feedback for Architectural Design

Today’s predictions of visual comfort are based on high-quality physically-based visualization renderings. Unfortunately, designers and practitioners rarely realize the full benefit of physically-based lighting simulation due to the amount of time required for these simulations. Visual comfort analysis is generally performed late in the design process as a form of validation, if at all. We propose a design workflow wherein certain quantitative visual comfort metrics can be displayed immediately to the designer as the scene changes, often before the physically-based visualization reaches a finished quality. In our prototype software, live-updating predictions of daylight glare probability, task luminance, and contrast are presented alongside a progressively rendered image of the scene so that the user may decide when to accept the values and move on with the design process. In most cases, sufficiently accurate results are available within seconds after rendering only a few frames.

Title
Publication TypeConference Paper
Year of Publication2016
AuthorsJones N, Reinhart C
Conference NamePLEA 2016 Los Angeles – 32nd International Conference on Passive and Low Energy Architecture
Date Published07/2016
Conference LocationLos Angeles
KeywordsDaylighting, Glare, real-time, rendering, Simulation, visual comfort
Abstract

Today’s predictions of visual comfort are based on high-quality physically-based visualization renderings. Unfortunately, designers and practitioners rarely realize the full benefit of physically-based lighting simulation due to the amount of time required for these simulations. Visual comfort analysis is generally performed late in the design process as a form of validation, if at all. We propose a design workflow wherein certain quantitative visual comfort metrics can be displayed immediately to the designer as the scene changes, often before the physically-based visualization reaches a finished quality. In our prototype software, live-updating predictions of daylight glare probability, task luminance, and contrast are presented alongside a progressively rendered image of the scene so that the user may decide when to accept the values and move on with the design process. In most cases, sufficiently accurate results are available within seconds after rendering only a few frames.

URLhttp://plea-arch.org/plea-proceedings/
Refereed DesignationRefereed