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Author Topic: 3DS Max hangs for minutes at a time after rendering frame??  (Read 1490 times)

KN1823

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Hi,

Ever since upgrading to 3DS MAX 2017, Vray 3.5 and forest pack we have been having constant problems with 3DS Max hanging for minutes at a time after the frame is complete. For example a render might take 3 minutes to do but then it will take up to 10 minutes for 3DS max to become responsive again? If we render the same view with forest objects hidden the scene will recover immediately after the render is complete. We have just upgraded from Max 2015 where we had no issues and scenes that were fine in 2015 are now a big problem in 2017.

Is there any known issues with the amount of trees created per frame and vray or memory issues? From what i am experiencing it would seem that the more trees per frame the longer it will take for a scene to recover. This is a major issue and is causing us a significant loss of productivity and money.
Scenes when rendering also seem to be maxing out the amount of ram available. All our computers run 24gb ram and even after extending this to 32 for a test the computer will still use all of it.

Our forest objects use a variety of plants from vray proxies, standard one or two plane geometry and HD trees.

Animations that we were able to pre-calculate irradiance maps for in 2015 are now refusing to keep rendering and we are getting the below errors and as per attached in the vray log.

2017/06/19 16:23:40 INF New task assigned: 3064
2017/06/19 16:29:10 ERR Task error: Launcher: Timed out executing command:"C:\Program Files\Autodesk\3ds Max 2017\maxadapter.adp.exe" "-o" "PingTask" "-l" "Info" "-j" "C:\Users\RENDER\AppData\Local\backburner\ServerJob\CNC_Camera Animation_002.xml.details" "-e" "164080" "-s" "3064" "-n" "1" C:\Users\RENDER\AppData\Local\Temp\adp2095: No such file or directory
2017/06/19 16:29:10 ERR Launcher: Timed out executing command:"C:\Program Files\Autodesk\3ds Max 2017\maxadapter.adp.exe" "-o" "PingTask" "-l" "Info" "-j" "C:\Users\RENDER\AppData\Local\backburner\ServerJob\CNC_Camera Animation_002.xml.details" "-e" "164080" "-s" "3064" "-n" "1" C:\Users\RENDER\AppData\Local\Temp\adp2095: No such file or directory
2017/06/19 16:29:11 INF Application is down
2017/06/19 16:29:31 ERR Launcher: Timed out executing command:"C:\Program Files\Autodesk\3ds Max 2017\maxadapter.adp.exe" "-o" "ShutDown" "-l" "Info" C:\Users\RENDER\AppData\Local\Temp\adp2097: No such file or directory

Below are our specifications.

3ds max 2017 with latest update 2. We have just upgraded from 3ds max 2015.
Vray 3.60.01 (latest)
Forest Pack 5.4.0 (latest)
Everything we are using is right up to date and the only plugins we use are the ones listed above.

Office setup:
1 x server that only works as a file server and licence manager.
1 x Workstation
10 x rendering computers
All files are stored on the server and in our 3ds Max files all paths are unc referencing to the server.

Some solutions here would be greatly appreciated.

Thanks,
Jason

iToo

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Re: 3DS Max hangs for minutes at a time after rendering frame??
« Reply #1 on: July 10, 2017, 09:00:56 AM »
Hi, usually these problems are not caused directly by Forest, but a Max or V-Ray issue.
Forest has no control over the rendering process, but it adds a significative workload to the render, and may trigger problems which are noticeable in other conditions.

Please, do this:

- Be sure Max 2017 is updated to with the latest updates. Currently Service Pack 3 and Hotfix 2017.0.2
- Report the problem to ChaosGroup. Hopefully they may know similar cases.
- Does the problem happen rendering only in Backburner, or also locally ?
- If you have a test scene which can use to reproduce the problem, please send it to us.

Thanks,
Carlos Quintero
iToo Software

KN1823

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Re: 3DS Max hangs for minutes at a time after rendering frame??
« Reply #2 on: July 10, 2017, 11:05:03 AM »
Hi,

Thanks for the reply. Would a significant amount of forest objects cause this hanging effect?

Max 2017 is fully up to date with sp3 and the hotfix.
I have reported this problem to Chaos.
The problem happens locally and using backburner.

Thanks

iToo

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Re: 3DS Max hangs for minutes at a time after rendering frame??
« Reply #3 on: July 10, 2017, 12:30:59 PM »
Thanks for the reply. Would a significant amount of forest objects cause this hanging effect?

Not really. Cleaning up process should be almost instantaneous, at least from our side.

Similar problems have not been reported either, except for a bug closing Max, but this was fixed some time ago.
Carlos Quintero
iToo Software

KN1823

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Re: 3DS Max hangs for minutes at a time after rendering frame??
« Reply #4 on: July 12, 2017, 07:32:53 AM »
Hi,

Could it be a problem with vray proxies being used in forest pack with these latest updates of vray and forest pack?  Is there a memory leak? It seems that when doing an irradiance map precalcultion for an animation it will complete a few frames but watching the ram and disk usage as it gets through the frames this usage builds up and up until all the ram is used up and then it just crashes max due to it running out of ram and hard drive cache?

Thanks.

iToo

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Re: 3DS Max hangs for minutes at a time after rendering frame??
« Reply #5 on: July 12, 2017, 08:07:25 AM »
Hi, we must wait the reply from ChaosGroup.

From the Forest side, we have not control over the rendering process, or the memory used by V-Ray.
Forest stores its own data, but we have not done changes on that in the latest releases.
Carlos Quintero
iToo Software