Visual comfort in buildings has a critical impact on occupants' health and mental performance. Among the visual comfort functions, daylighting glare is the most complex phenomenon to assess by architects and practitioners. This paper aims to benchmark state-of-the-art methods for annual glare analysis and develop strategies to reduce the computational time (CPU time) without compromising the accuracy of glare calculations. The Radiance-based tool rtrace and the Radiance-based five-phase method (5pm) are applied to a single room. Analytical isotropic fabric systems are parametrized in terms of specular/diffuse scattering components and cut-off angle. Peak extraction considered by Radiance's aBSDF material primitive is key to having an accurate representation of the luminance maps and vertical illuminance at eye level and glare calculations. A minimum number of ambient bounces (ab parameter) of 4 when using Radiance's rtrace program achieves the best trade-off between accuracy in vertical illuminance and daylight glare probability (DGP), and CPU time. Based on semi-annual and five days per week simulations for visible sun positions, sampling strategies can decrease the CPU time for annual glare simulations up to 86% when considering clear sky conditions. The most suitable method for DGP simulations depends strongly on the Radiance parameters and the chosen sampling strategy.

建筑物的视觉舒适度对居住者的健康和心理表现有着至关重要的影响。在视觉舒适度功能中，日光眩光是建筑师和从业人员要评估的最复杂的现象。本文旨在对年度眩光分析的最先进方法进行基准测试，并制定策略以减少计算时间（CPU 时间）而不影响眩光计算的准确性。基于 Radiance 的工具rtrace和基于 Radiance 的五相方法（下午 5 点）应用于单个房间。分析各向同性织物系统根据镜面/漫射散射分量和截止角进行参数化。Radiance 的 aBSDF 材料基元考虑的峰值提取是在眼睛水平和眩光计算中准确表示亮度图和垂直照度的关键。使用 Radiance 的rtrace时，最小环境反弹次数（ab 参数）为 4程序实现了垂直照度和日光眩光概率 (DGP) 的准确性与 CPU 时间之间的最佳折衷。基于对可见太阳位置的半年和每周 5 天模拟，在考虑晴朗的天空条件时，采样策略可以将年度眩光模拟的 CPU 时间减少多达 86%。最适合 DGP 模拟的方法很大程度上取决于 Radiance 参数和所选的采样策略。