The scattered ray projection vector has equal probability anywhere on the projected plane
The scattered intensity varies like cos(qs)
The scattered intensity is independent of the incident angle
W cOyOv Gaussian c@f?0|66M BSDF(x) = A*exp[-|x|2/s2]
The scattering distribution is symmetric in direction cosine space
s determines the width of the Gaussian distribution on the projected plane
Maximum value allowed for s is 5 (for s > 5, distribution is nearly Lambertian)
+)$oy] ABg t@r>GHO BSDF(x) = A/[B + |x|g]
Widely used to model scattering due to random isotropic surface roughness
Input values for A, B, and g are provided in an ASCII file (in the <data>\ABg_Data\ directory)
Input value limitations: A >= 0, B >= 1.0E-12 (unless g = 0, then B = 0 is allowed)
mang2004
2012-01-20 02:37
楼主, FJ-X~^ 从diffusion power vs. angle 曲线看,朗伯散射模型是不合适的,考虑用高斯和ABg散射模型更现实。 r c++c,= 如需要具体模型参数,请告知。 `st3iTLZY 祝成功! JX!z,X?r4 MANG2004 %vn"tp
懒懒的天
2012-02-29 11:47
mang2004:楼主, +-r ~-b s 从diffusion power vs. angle 曲线看,朗伯散射模型是不合适的,考虑用高斯和ABg散射模型更现实。 N?EeT}m _ 如需要具体模型参数,请告知。 &M>o 祝成功! 6n A/LW\x MANG2004 3d`u!i?/ ....... (2012-01-20 02:37) 2WK c;?
DuQW?9^232 同求ABg模型具体参数一份!感谢版主大大!
mxchen
2012-03-16 18:36
学习学习
woshine123
2016-05-25 22:22
mang2004:楼主, U7''; w 从diffusion power vs. angle 曲线看,朗伯散射模型是不合适的,考虑用高斯和ABg散射模型更现实。 sd9b9?qiu 如需要具体模型参数,请告知。 "l{{H&d 祝成功! %'uei4 MANG2004 sXmP<c ....... (2012-01-20 02:37) Y P,>vzW