How to resolve v-ray glass transparency issue in v-ray 3.6 for sketchup
This is another useful presentation from Justin Geis for sketchup and v-ray users. Often a common issue occurs while working with vray 3.6 for sketchup. The issue is about the rendering of your glass lacks transparency due to improper set up of model.
In this video, one will get some useful tips to set up your glass properly in order that the rendering always becomes transparent for your glass.
While starting rendering inside v-ray, if you employ the glass materials, it is possible to see through the glass and therefore the glass is demonstrated as non transparent.
To learn how to make the glass transparent, go through the following video tutorial.
Video Source The Rendering Essentials