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Fresnel reflection is a realistic type of variable reflection. The fresnel
reflection model uses the ior of the material to calculate the reflection of
light which, AFAIK, is how the physics of light works. I'm sure others have
more in-depth explainations for you. I use pretty much exclusively fresnel
reflection now , mostly because it is more realistic and it save me from
figuring out what I think is realistic.
-tgq
"Slime" <noo### [at] hotmail com> wrote in message
news:3bec5708$1@news.povray.org...
> This question applies to 3.5...
>
> So, what exactly the "Fresnel reflectivity function?" What sort of
> calculations are going on with this? And it seems to create variable
> reflection... is this more accurate than normally specifying two
reflection
> values? I'm just wondering what this keyword is really *doing*...
>
> - Slime
> [ http://www.slimeland.com/ ]
> [ http://www.slimeland.com/images/ ]
>
>
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