请高人帮忙解释一下这几个参数分别是干什么用的,有什么区别 w x]?D%l
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fresnel zpwoK&T+
stack A;L
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grating A&M_ J
anistropic Pdf-2
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coating DLL ui>jJ(
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Elliptical ABg j1;[6XG
Elliptical Gaussian +ALrHFG
Table BSDF Ye3o}G9z
Asymmetric Table BSDF