We conclude that RTLX was more sensitive to fatigue effects but failed to predict variations in cognitive efficiency caused by the glare source.
In those treatments where the volunteers had to toggle their sight between the glare source and the task the cognitive effectiveness was lower.
The position index of a glare source at the borderline between comfort and discomfort (BCD) in the whole visual field.
Compared to existing methods of analysis that define the entire window as a single glare source, luminance maps indicate that the magnitude and duration of visual discomfort varied significantly for many systems across the "masked" regions defined for the window and illustrate the need for more detailed spatial analysis when assessing the visual comfort performance of innovative facade systems.
HDR images store luminance data on a "per-pixel" scale, providing far greater resolution for visual comfort analysis, enabling both the definition and analysis of an arbitrary number of pre-defined regions, and the possibility of detecting glare sources throughout the full field of view (FOV) to compute any number of discomfort glare metrics.
Glare sources for the DGI calculation were detected using the Radiance findglare tool assuming a threshold value of 1000 cd/[m.
Sensitivity analysis was conducted for DGP calculations to determine whether different glare source identification multipliers (3*mL, 5*mL, 7*mL, or 10*mL) could produce improved squared correlation coefficients with respect to each question.
DGP produced with various absolute threshold glare source identifiers consistently produced higher [sub.