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Hope Schroers avatar image
Hope Schroers asked ·

HTOA 4.2 - dont have option to switch to GPU render in Arnold ROP

So I just downloaded the arnold render plugin for Houdini 17.5 (HTOA 4.2) on Ubuntu 18.04. I get the arnold rop no problem but under devices i have no option to switch devices used for rendering. I have an RTX 2080 Ti card and the proprietary 430 driver installed. Card works perfect. Why isnt the option showing up?

Thanks guys!

arnoldrenderarnold gpu beta
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Stephen Blair answered ·

Right now, there are no Arnold licenses for individual students. Schools can get a bulk license, but there's no support yet for individual licenses.

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Hope Schroers answered ·

@Stephen Blair I just rebooted my computer back into Ubuntu and houdini since I posted this and it loaded up. I had just installed it on the computer and restarted Houdini and was getting the arnold rops, but seems I had to restart the whole computer for those all the changes to take effect. I suppose that has to do with the fact its want to deal with the hardware. So its working now! thank you!

I do have a question though regarding what came up in the terminal if youre able to answer. So I have an Autodesk student account so I get Maya and mtoa for free? Htoa has watermark error because I dont have licensing on it (trying to load on personal PC). Is there a way to put arnold licensed with my student autodesk account in Houdini? I registered with solid angle with my autodesk student account to download htoa.

I'd been trying to get a hold of someone at Autodesk with other issues regarding Maya 2018 in Ubuntu 18.04, but no response.

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Stephen Blair answered ·

We hide that UI only on macOS

Are there any errors at startup? (if you start houdini from a terminal, you'll see an HtoA log)

What about the Parameter Interface? Do you see render device listed there?


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