Well, just to avoid misunderstandings, I really appreciate your effort and your timely and effective support. Unfortunately I'm not professional user and I'm not deeply into the matter as well. I found your product very useful and easy to use compared with other sw like eg. Chief Architect. Thanks ...

Well, I tried with fully black material(instead of gray glass), but the transparence is not really sadisfing me, it seems to be just a shadow on the back objects... In my case, I saved as collada or obj any of the following Ikea Besta object, with glass door:

http://sketchup.google.com/3dwarehouse ...

Fortunato te che hi una casa così...

I know this topic has been managed several times, but I have a very strange problem: when importing obj or dae objects, the transparency of materials seems to be appropriated according to given value in 3d view but is very attenuated in the final rendering. In other words, with d 0.99 (almost full ...