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Rendering with Arnold in CINEMA 4D using the C4DtoA plug-in.
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Arnold rendering on two systems with one license

Message 1 of 5
260 Views, 4 Replies

Arnold rendering on two systems with one license

I have a single Arnold floating license, jumping between a PC and an aging Mac Pro. I'm currently rendering an animation with R20 on the PC that will take around 12 hours to finish.

I also want to set up some textures and lighting on a different scene on the Mac Pro in R21. I'd like to use the IPR to facilitate this, and since I'm just setting up the scene it doesn't matter whether there's a watermark.

I know the license checks the license server (running on the Mac Pro) to allocate the license, but how exactly does that work during the long, 350-frame render on the PC? Is there a chance some of those frames could end up with a watermark if I happen to launch the IPR on the Mac Pro while the Render Queue is between frames (preparing clones in the scene, for instance, before the rendering actually starts)?


Shawn Marshall

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Message 2 of 5
in reply to: shawn

Yes, it can happen. Each frame is basically a separate render with separate license checkout.

I recommend turning off license check on the Mac Pro while working in the IPR. See

Message 3 of 5
in reply to: peter.horvath6V6K3

Great, thanks for the quick reply and the tip. I'm glad this control is easy to access.



Message 4 of 5
in reply to: shawn

Also, the IPR keeps the license checked out until you stop the IPR.

So you could end up with multiple watermarked frames, not just one. Imagine if you left the IPR open and went to bed...

// Stephen Blair
// Arnold Renderer Support
Message 5 of 5
in reply to: Stephen.Blair

Good to know, thanks. Normally I'd have Pixel Plow take on such a job, but I'm feeling particularly cheap, and it's cold and rainy here in Portland, so the Xeons in the PC are keeping our home office warm.

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