ok, another solution: when create a lan you have to share material foldelrs and project folder. At the moment I don't know how create an ethernet lan. only wifi. If someone can help me...

Yes, i'm using a wireless network. the prblem is render starts whit 2 "squares" (2 cores) and after few minutes starts to render other 2 core of slave machine and sometimes does not starts. where is the problem?

ok, find answers on my questions:
1)yes, it's really better to create a network ad-hoc then use network that use normally for internet.
2) no, I think
3) yes, it's necassary to activated only on slave machines but remember to activated "distributed render" on both machines,
Thanks Andalo!

ha everyone,
I'm a new sketchup user, thanks in advance for your awesome forum!
First question is:

1. is necessary for distribuited rendering in vray to have a lan?
2. if yes what I have to sharing between macs? documents, application...
3. Is XMLDRspawner starts automatically when sketchup starts on mac?

Thank you!