19 March 2012 – 29 April 2012
Dynamic + Temporal is an exhibition about the ephemeral performance of daylight within architectural space. Daylight is a dynamic source of illumination, creating diverse and ephemeral configurations of light and shadow within the built environment. It can generate contrasting levels of brightness between distinct geometries or highlight smooth gradients of texture and color within the visual field. Although there are a growing number of studies that seek to define the relationship between brightness, contrast, and lighting quality, the dynamic role of daylight within the visual field is underrepresented by existing analysis metrics. This exhibition presents current and ongoing research into a new family of metrics that quantify the magnitude of contrast-based visual effects and time-based variation within daylit space. A method for annual analysis is introduced through the use of time-segmented daylight renderings while a method of hourly analysis is presented through the use of time-lapse photography. This exhibit introduces two new metrics for quantifying the perceptual effects of daylight in architectural spaces; Spatial Contrast and Cumulative Variation in Light. These metrics are be applied to a series of abstract case studies to evaluate their effectiveness in comparing daylight-driven visual effects. They are also applied to a series of existing architectural spaces; one side lit, one top lit, and one hybrid top and side-lit space to measure the variability of daylight on an hourly scale. The linked animation demonstrates a method for capturing time-lapse HDR photographs and processing them through MATLAB to calculate the magnitude and variability of light-based visual effects over time.
This research was recently published in the 2012 simAUD proceedings (Symposium on Simulation for Architecture and Urban Design) and received a Best Paper Award from a pool of over 50 submissions.