Chaos people solved this for me: A recommended workflow to achieve transparency of glass in a .png image would be to adjust the settings of the glass material. In the 'Refraction' rollout, change the 'Affect channels' parameter to 'Color + alpha'.

I think I wasn't clear enough before. I want my render output to have reflections and refraction on glass materials, but still be transparent so I can easely import background image. Do I have to use layers (render elements) now to get that?

Thanks!

Well, it didn't do what I meant.

Match photo example

Hi All

in V-ray 2.0, PNG output, glass materials were transparent by default, so it was easy to insert background in post production.
How to set it up in 3.4?

Thanks!

Thanks for answers

Can I install 2013 and 2014 with same key?
(Purchased 2014 few days ago)

edit: internet says yes, so ill try

Hi everyone

is there a way to install vray2.0 to Sketchup 2014?
I upgraded, so I'm in big problem now if I can't render