請(qǐng)高人幫忙解釋一下這幾個(gè)參數(shù)分別是干什么用的，有什么區(qū)別 X75>C<  
type : table Q>nq~#3?  
          fresnel @v9PI/c  
          stack ;YxQo o>  
          grating ]RmQ*F-  
         anistropic ^RG6h  
         coating DLL 0SV#M6`GX  
scatter model: :g3n
[7wR  
         ABg 4NL TtK  
         Elliptical  ABg SMaC{RPQ  
        Elliptical  Gaussian \)VV6'zih  
        Table BSDF CG