I've been using vray for sketchup for quite a while now, for the main reason that I'm really too lazy to export it to max and then reapply textures and do everything all over again. The one thing I found in VRAY for Sketchup is that it's really slow. Not so sure it's meant to have VRAY. I've tried experimenting on ways to try to make renders faster but it seems to no avail.
I've had real troubles rendering interiors and get really noisy result at the farthest edges and dirty ones too. I tried increasing shadow subdivs, that makes things slower, adjusting the "subdivs?" in the qmc option again slower. the dirt from the shadow is lessened.
I've come to the conclusion that I should probably go back to max (for very obvious reasons) but our office uses sketchup for all the modelling so you see the dilema. I'm not comparing the two well because of the capabilities of each.
I know I'm doing something wrong with the renders so could someone please lend a helping hand. I really need tips on making renders faster through settings or modelling techniques. thanks!