Jim Charter wrote:

<snip>

> Thanks for replying
> 
> So I take it if you give the finish
> reflection { .96 fresnel on } with interior { ior 1.5 }
> then .96 is taken as the high reflectivity value as angle of incidence
> approaches 0 and the low reflectively value, at angle of incidence 90,
> is derived from the ior value?

Jim,

maybe this will help you:

<http://www.povray.org/documentation/view/3.6.1/348/>

Alf

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