@cuttingedge said:
I think my trouble is more with sketchup 2013 than vray. the rendering part is smooth but I had bugsplat after bugsplat in the modeling part. which I think has nothing to do with vray.
It's a gamble for you to install Vray 1.6 on SU 2013. YOu may acquire a license for SU 2013, but keep the vRAY 1.6 beta on your more stable SU like v8.
In my experience, it's the opposite...
I first installed Vray 1.6 on SU8, and got bugsplats over bugsplats while modeling (I guess due to Observers used by RT). So I loaded it only when needed.
Then I moved on to SU2013 and have much less bugsplats.