Acta Optica Sinica, Volume. 43, Issue 6, 0612002(2023)
Scattered Ray Tracing Method Based on BRDF Model by Rejection Sampling Method
Figures & Tables(9)
Fig. 2. Schematic diagrams of two ray splitting principles. (a) Probability splitting principle; (b) energy splitting principle
Fig. 4. Simulation diagrams of ABg model。(a) x-z profile of simulation; (b) x-y profile of simulation
Fig. 6. Repeatability and accuracy comparison of simulations with BRDF model and parameters for different materials. (a) Glass material for standard lenses; (b) shiny aluminum; (c) optical surface
Table 1. Coordinates of components in simulation
View tableTable 1. Coordinates of components in simulation
Coordinate of components Scatter surface Light source Analysis surface Position coordinate （0，0，0） （-0.5，0，0.5） （1，0，1） Direction-cosine （0，0，1） （sin 45°，0，
-sin 45°）
（0，0，-1）
Table 2. BRDF model and parameters for different materials
View tableTable 2. BRDF model and parameters for different materials
Material type A of ABg model B of ABg model g of ABg model b0 of Harvey model L of Harvey model s of Harvey model Shiny aluminum［ 16 ］4.090×10-2 2.050×10-3 2.151 — — — Glass of standard lens［ 21 ］7.246×10-5 1.000×10-3 2.000 — — — Optical surface［ 22 ］— — — 1.185×10-2 3.100×10-2 -1.900
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Xulei Lun, Dan Zhu, Zhishan Gao, Ningyan Xu, Wenyou Qiao, Qun Yuan. Scattered Ray Tracing Method Based on BRDF Model by Rejection Sampling Method[J]. Acta Optica Sinica, 2023, 43(6): 0612002
Paper Information
Category: Instrumentation, Measurement and Metrology
Received: Jun. 16, 2022
Accepted: Aug. 1, 2022
Published Online: Mar. 13, 2023
The Author Email: Yuan Qun (yuanqun@njust.edu.cn)
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