indeed, i am a linux guy ;-) so, what does fresnel reflection and 
fade_color do? is there anything similar in v3.1?
linux users seem not to be loved in pov community <- no v3.5 for linux?

JRG wrote:

> It's a great improvement!
> ...But, <looking at a red Chianti wine bottle at the moment>, I think the
> neck should be just a little (~1 cm) shorter. The glass textures look a
> bit *glowing*, as if you were using too high ambient or diffuse values. I
> would use ambient 0 and diffuse ~0 (0.05 is what I usually, well... use).
> I'd also use a darker texture for both the green_bottle glass and the wine
> liquid (which looks too transparent now). If you're using POV 3.5 (I doubt
> it, since you're a Linux guy) or MegaPov try also fresnel reflection and
> fade_color.
> Keep up the good work.
> 
> --
> Jonathan.

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