This glass shader is based on Kirado's technique to simulate dispersion in cycles. I edited it so that the colours can be changed. The NodeGroup uses Agus's fake absorption technique so thinner parts of glass are less saturated.
There are other NodeGroups included like a car paint shader using TheFull9Yards's (Conner Addison) technique (I have changed it so you can pick what colour it is), Agus's wire frame NodeGroup and My own checker board Version, and Agus's fake SSS material (slightly modified). I hope the NodeGroups are relatively easy to understand
What version of Blender are you using for this blend? The info says 2.63 but the glass color doesn't render as expected using the standard issue Blender 2.63 (at least not for me). Instead, all 3 glass models render as non-colored glass.
Am I the only one experiencing this?
go into the material node editor the go shift A, input, Light Path then see if there is an option called ray length at the bottom. if you don't have it it won't work and you will have to get a recent build off graphicall.org
Superb work! You must be a real master when it comes to the fine art of working with "nodes".
I was looking for this yesterday, thank you :) Awesome blend with awesome timing of uploading :D