Rendering accurate glass and liquids in Maya with Arnold | Vray | Renderman

In this tut we''ll talk about rendering accurate glass and liquids, in 3 render engines. Starting with a little intro about the physical interaction between light rays and refractive object ,and how to model objects to get perfect results.
Then v'll dive in to Arnold , Vray and Renderman to see how each tackle refractives.
tut time stamps
Intro: 00:40
Arnold : 05:40
Vray : 08:10
Renderman: 09:41
Free HDRIs : www.hdrlabs.com...
IOR list : pixelandpoly.c...