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Rendering with Arnold in Houdini and Solaris using the HtoA plug-in.
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HtoA Generating scene time single user

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Message 1 of 11
kg2040
253 Views, 10 Replies

HtoA Generating scene time single user

Hello

With single user subscription, I get slow, double 'Generating Scene' time vs rendering with watermarks (Skip license check).

Indie/6.2.1.0

Thanks

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10 REPLIES 10
Message 2 of 11
Stephen.Blair
in reply to: kg2040

How slow? Two seconds slower? That would be about average for a license authorization.

If you get an Arnold log, we'll see how long it takes.

Instructions for generating full verbosity log files are available for MtoA, MaxtoA, C4DtoA, HtoA, KtoA, and Kick.



// Stephen Blair
// Arnold Renderer Support
Message 3 of 11
manuel.kotulla
in reply to: kg2040

Hi all,

same here, 2-4 seconds are lost every time I hit the Render button.
Is there anyway to speed up this process or do the license check any other way?


Best, Manuel

Message 4 of 11

No, that's how long it takes with the current Autodesk single-user licensing.



// Stephen Blair
// Arnold Renderer Support
Message 5 of 11

Will this be changed?

2-4" are a lot when rendering large sequences ...

Message 6 of 11

Maybe, I can't guarantee anything.
Single-user licensing was never intended for render farms, mostly because of the requirement to sign in on every machine, every 30 days.



// Stephen Blair
// Arnold Renderer Support
Message 7 of 11
kg2040
in reply to: kg2040

Hi all

Thanks for the answer.

With license around 4.7sec
Skip license around 2.3sec

After the quick and easy activation process, this is an unexpected surprise.
I have a lot of start/stop - add/del geometry, switch shader/skydome texture, etc.

This every start/stop license check on every subscription, or just the single monthly?
Any planned improvement on this function? (eg.: check just once at loading)

Thanks

Message 8 of 11
Stephen.Blair
in reply to: kg2040

When you start a render, Arnold checks out a license. It can be an IPR render, or a render to disk. The license is checked back in when the render finishes. It doesn't matter whether it's single-user or network, it's always like this.

Arnold does check at loading, but it is when Arnold is loaded to do a render. Arnold is unloaded when the render finishes.



// Stephen Blair
// Arnold Renderer Support
Message 9 of 11

This also aplies for local rendering of a larger sequence.

As Gabor said, its more a problem for lookdev.

An ideal solution would be that Arnold checks the license in when Houdini is starting, not everytime a rendering is starting.

For now I use "skip license" for lookdev — not an ideal solution.

Best, Manuel

Message 10 of 11

HtoA does a license check at startup...if that fails, it never tries again. But Arnold licensing is not "one time only and it lasts all day". It's per frame or per IPR, because when Arnold isn't rendering, Arnold isn't running.

We agree about the 2 seconds and we're pushing for that to be improved, but for now there's no solution.




// Stephen Blair
// Arnold Renderer Support
Message 11 of 11

Thanks for your answers!

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