From: luweitest@address.invalid   
      
   I am trying to solve a general but seems complicated problem: reflection   
   and transmission of light, on an interface of general profile. For   
   example, the light falls on a fuzzy glass. Fresnel's equation gives   
   analytical results on flat surface, but on rough surface, how do I   
   calculate the reflection and transmission? Is there any software that   
   could do this?   
      
   --   
   Regards,   
   Lu Wei   
   PGP key ID: 0x A12F EF75 92CC E1EA   
      
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