咦,不是有一节就是专门说这个事的吗? l}mzCIw% 我也是刚学,不过,先看了下,应该还好明白的吧, {1]Of'x' 哦,不过,我也没有细看的, Z sbE 只是看了下BSDF的定义拉, A[X~:p.^G 说的不对,请多多见凉啊
roadwu
2005-09-09 18:10
如下是帮助里提供的定义 2~SjRIp Uw BRDF：Bi-directional Reflectance Distribution Function. It is the scattered radiance from a surface (reflective scattering) per unit incident Irradiance, and thus has units of inverse steradians (1/sr). The BRDF is defined as the differential scattered radiance per unit incident Irradiance. x 0x/2re BSDF：Bi-directional Scattering Distribution Function and is a generic term which is used to refer to BRDF and BTDF. }_o!f V BTDF：Bi-directional Transmittance Distribution Function. It is the scattered radiance through a surface per unit incident Irradiance. P6o-H$
a+ w7X], auRC 具体参数怎么选取需要自己去多尝试，手册里虽然有公式，但很抽象。