Vray is rendering my transparent glass as black

I am facing an issue with a glass surface. After applying translucent properties to the surface, it still renders as a black surface.
Below is the link to the file. Pls check out scene 3. The translucent glass appears black when rendered on vray.

Thanks alot in advance!

I imagine your file isn’t attached as it is too large.

First thing to check is face orientation, look at your model in Monochrome mode and check that you only see white faces.

I have had this problem. Find the problem material in the Vray material panel then select all in model. Then select a Vray native glass and apply to selected. should fix it. Vray’s native materials are really good, I use them as much as possible.

Justin / The Rendering Essentials did a Video about this Problem: