Cerise365™ and DAYSIM are daylighting analysis software programs that perform climate-based annual daylight simulations, including the calculation of annual daylight metrics. This white paper compares their performance in terms of accuracy and calculation times. Average illuminance and spatial daylight autonomy values agree to within 8 percent. Cerise365 is approximately 250 times faster than DAYSIM for a benchmark model. Cerise365™ and DAYSIM are daylighting analysis software programs that perform climate-based annual daylight simulations, including the calculation of annual daylight metrics. We compare their performance in terms of accuracy and calculation times. Average illuminance and spatial daylight autonomy values agree to within 8 percent. Cerise365 is approximately 250 times faster than DAYSIM for a benchmark model.
https://www.allthingslighting.org/index.php/2019/02/15/cerise365-and-daysim/