Indigo, watercupcloseup

omfg.... pleaaaase tell me what settings (for lights /shaders/ whatever it took to get it look this good) did you use for the vray glass shader to get it to look that real.....'cause no matter what the f**k i do with mine it always gets black in the thicker areas.... & when i lower the refraction subdivs it gets more color but loses overall refraction quality..... is there some kind of special setting with the lighting? .... i also tried using glass shaders downloaded from the internet.... they're all the same shit .... fading to absolute black in the thicker areas