Rendering problem with vray sketchup

[psallan]

hi

i've been having a problem rendering one of my models... there's a sort of cloud that dims the top of the image and leaves a sort of semi circle of a clear image at the bottom...

this doesn't happen with any of my other models... so I was thinking it might be something in vray I did wrong...

is there any way to get rid of this cloud?

thanks for your help

ps. sketchup v.7, I'm not quite sure which version of vray it is... but it's not the last one... although I don't think that that is causing the problem (all my other renderings come out fine)

[thomthom]

hm... I'm guessing your got two surfaces right on top of each other - creating z-fighting.