[Radiance-general] better results on genBSDF

[Lars O. Grobe]

Hi German!

> I am using genBSDF to get the BTDF of a shading system, comparing it to
> an analytical model using the radiosity method. No surprise, the
> calculations seem to be really good, nevertheless, there are some
> important differences on directly transmitted (specular) calculations. I

Why do you think that "an analytical model using the radiosity method"
results in "better" results than raytracing does for specular transmission?

Cheers, Lars.