V-ray network rendering, does the license server needs to be online continuously?

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Old 06 June 2013   #1
V-ray network rendering, does the license server needs to be online continuously?

Hello,
I have a workstation with 3ds max and v-ray running and a render slave with 3ds Max (trial) and v-ray (render node, not full install) installed, the v-ray installation also has retrieved the license settings from the workstation. Network rendering works perfect.
My question now is, does the workstation (which runs the full install of v-ray and has the hardware dongle) needs to be on all the time for the renderslave to check the license. Or can it be put off while the renderslave is rendering (since it already obtained the v-ray license). I'm asking this because it was not clear to me (from the v-ray documentation) if the license is being continuously checked (maybe at the start of each render job?) or only once when you set it.

Thank you in advance!
Best regards, David
 
Old 06 June 2013   #2
I guess you could pull the dongle out and try it
 
Old 06 June 2013   #3
Try searching the chaosgroup forums, i'm sure i've seen this question asked there. I believe it is checked at the start of each frame as the render node fires up max. Vlado will probably confirm here, or you should just email chaosgroup directly.
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Old 06 June 2013   #4
Hi Michael,
you're right, I've found this on the Chaosgroup forum:
"V-Ray checks for a license whenever you open the render settings dialog, and whenever a rendering is started.
Best regards,
Vlado"

So the workstation needs to be running when the render slave has a batch of jobs assigned.
 
Old 06 June 2013   #5
Ok sweet!

Maybe this is an option if you want to be able to turn the main workstation off:

-You could could queue up all your jobs that need to be rendered, then turn off your workstation.

-Now Plug the hardware dongle into one of your render nodes: I would choose the node that is running the backburner manager. This particular render node will likely need the wibukey driver installed for the hardware dongle to work.

Then for all the other render nodes in your farm, use the 'Change V-Ray client license settings' licence tool to set it so that the primary licence server is your workstation, and the secondary licence server is the render node.

That way, whenever the rendernodes can't see your workstation (Because you turned it off), they will all look for the licence on your first render node (you just have to plug the hardware dongle into that!)
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Michael Wentworth-Bell | 3D Artist & VR Designer | Melbourne, Australia

Espire 1: My VR Stealth game - CGTalk thread
 
Old 06 June 2013   #6
Thanks for the tip, Michael!
 
Old 06 June 2013   #7
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