I ask me, why the liquid looks solid and I found, that the refraction of a full and an empty glass is the same. The liquid look is determinate by color and upper liquid surface.
It would be nice, if the refraction system could be enhanced. I would like to get the thin glass automatic as an option. Also it would be nice if liquids could be calculated like at other render engines - if the liquid is scaled so that it intersect the glass, than there will no reflection of the liquid surface calculated and they looks like one solid object. Thomas Willberger Could it be set on the wish list please?