I'm very new to vray just switching over from mental ray. I would say I am a lower end intermediate user.
I am an exhibit designer and in mental ray, I was able to create my exhibit on a clear floor using an autodesk glass material that would reflect the exhibit yet be entirely invisible. For example, if I had a colored gradient background, you would just see that background, the exhibit and the reflection - no trace of the "floor". I have been unsuccessful duplicating this effect in vray. I tried a standard glass as my floor, but it renders completely black. I've combed the internet and I can't find any solution. Is this possible to do? I'm attaching an example of what I'm talking about. Thanks in advance.