Maya 2014 Vray "Too many files" error on render.

[LordFarquad]

Hello.

I am working in a production where we have some full CG characters with one character being at 2500 different texture files.

We are using Maya 2014 on windows 7 with Vray 2.4. Our texture files are tiled .EXR files in UDIM UV space. As it renders and the exr files load in (visible in the output window) maya will start posting the error “No such file found” followed by “Too many files open” after loading in around 2080 files.

Maya will continue to render the image while spitting out these errors. Having part of the character off screen, or removing the textures from a number of pieces stops this error. I have double checked to make sure that it the files themselves that are corrupted.

I have tried rendering through the Vray frame buffer, batch render, and command line.
I have also tried exporting to a .vrscene and rendering it with Vray standalone.
We are using the vray texture filter attribute on all file nodes.
Ram usage does not cap out during render
dynamic memory is set to 8192,
VRAY_TEXTURE_CACHE environment variable is set to 8192
I have tried on multiple machines with the specs 16gb ram, i7 4770, gtx760 with windows 7.

Has anyone else encountered this error or have any valuable information? Maybe it is a limit set for windows 7 and not maya or Vray but at the moment we are at a loss as to how to increase the limit or get around it without having to spend alot of time re UVing characters into less texture files.

Any help is much appreciated.

James.

[bigbossfr]

Hello.

I am working in a production where we have some full CG characters with one character being at 2500 different texture files.

We are using Maya 2014 on windows 7 with Vray 2.4. Our texture files are tiled .EXR files in UDIM UV space. As it renders and the exr files load in (visible in the output window) maya will start posting the error “No such file found” followed by “Too many files open” after loading in around 2080 files.

Maya will continue to render the image while spitting out these errors. Having part of the character off screen, or removing the textures from a number of pieces stops this error. I have double checked to make sure that it the files themselves that are corrupted.

I have tried rendering through the Vray frame buffer, batch render, and command line.
I have also tried exporting to a .vrscene and rendering it with Vray standalone.
We are using the vray texture filter attribute on all file nodes.
Ram usage does not cap out during render
dynamic memory is set to 8192,
VRAY_TEXTURE_CACHE environment variable is set to 8192
I have tried on multiple machines with the specs 16gb ram, i7 4770, gtx760 with windows 7.

Has anyone else encountered this error or have any valuable information? Maybe it is a limit set for windows 7 and not maya or Vray but at the moment we are at a loss as to how to increase the limit or get around it without having to spend alot of time re UVing characters into less texture files.

Any help is much appreciated.

James.

Your server is on linux ?
If yes, just increment the files opened limit on your server.
Go to google and type : “Too many files open”, there is a lot of answers.

[LordFarquad]

Hello Deex

Our servers are currently on windows with all the workstations also being on windows. Yeah google helps alot for Linux and Mac osx with their terminal commands like -ulimit. I haven’t been able to find anything that relates to this error on windows however.

Any more thoughts, they are very welcome

Thanks
James.

[thev]

You might want to get a nightly build of V-Ray for Maya which solves this issue for OpenEXR files on Windows.

Best regards,
Vlado

[LordFarquad]

Hello Vlado,

Sadly we don’t have access to the latest nightly builds with our licences at university and will have to just work around the problem. Thanks for the post, good to know it’ll be fixed for future projects.