BB

first things first.

As calcalated by you, your Fresnel setup has 5% (blue) reflection and 95% (red) refraction at the surface. Thanks to internal reflections within the glasseous object, the resulting final blue reflection is R(1+T^2/(1-R^2)) = 9.5% and the same way, the final red transmission is 90.5% (two surfaces 95% x  95% and a minor contribution from internal reflections as well). Rounding off, nature will show a 10 blue : 90 red ratio and these numbers together make 100% from the assumption that no absorption takes place.

Since Poser applies GC on colors but not on value entries, putting those 5%/95% in the Value slots (or have them calculated by Fresnel) give the 25.8% blue : 97.6 red as you measured, and those exceed 100% when added up. So whatever you argue, your reflections will be far too strong compared to your refractions, the finally produced red/blue color will be off and the glasseous object will be too bright.

This can be compensated for by using the color-slots instead, but transparency does not have one - and whenI adjust the value, it affects the shadow intensity. And the Fresnel(_Blend) internals cannot be accessed.

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Usually I'm wrong. But to be effective and efficient, I don't need to be correct or accurate.

visit www.aRtBeeWeb.nl (works) or Missing Manuals (tutorials & reviews) - both need an update though