Thank you guys

When I apply a Vray material to a sketchup surface, it doesn't show in Sketchup. It shows only when I render, which makes it a bit hard to see which material is applied on which face and how it looks like without having to render everything.

Sketchup Pro 2016

and how to check the version of vray?

Thank you Dave R for the better solution ..

Thank you pilou for the pluggin

I want to make this curved lathed face (I guess the word is correct), I watched a several lathe creation videos etc on youtube, but, no success creating this one. the distance between curves are identical, dimensions are same, still sketchup don't create the curved face automatically .. it's frustrating when it doesn't draw how you want it, I spend all day to find a way, but no success.

I still tried to draw lines horizontally to fill up the face, but it has so many edges and sometimes it doesn't fill up as you can see in the following picture

then I drew lines diagonally as well, then it all filled up (a sign of non-parrellel curve lines? but the curves are identical)

and I did soften/smooth faces command then, it looks ok, but still has small amount of edges

can somebody tell me is there any other correct way to make a curved face like this, without edges or with minimum edges?