Problem with VRay materials?

[sjyoon081]

Hello.

 

I am pretty new to VRay and pretty much the entire rendering process.

I am currently using Vray plug in for Rhino, and it seems like I cannot render some materials I set up using Vray material editor.

I am trying to render a frost-glass like material that I created manually with vray, but everytime I try to render, it just shows up as black opaque blob.

I tried using basic material setting of Rhino with transparency, and this renders fine.

I'm pretty sure my material setting in Vray is correct since I rendered the same material correctly a day before.

I think I touched something accidentally in Vray option, but I am not sure what

 

If someone is kind enough to go through this problem for me, I will be very grateful.