[VFBCore::SetRegion] Error writing render region to raw image file.

[snivlem]

I'm trying to render an animation but this keeps on popping up with Maya 2011x64, Win7x64 and V-Ray SP1 from june 20th:

[2011/Jul/29|14:31:34] V-Ray error: [VFBCore::SetRegion] Error writing render region to raw image file.
Error: [VFBCore::SetRegion] Error writing render region to raw image file.
[2011/Jul/29|14:31:35] V-Ray error: Cannot write output image file "xxx/images/cam19_60007.exr"
Error: Cannot write output image file "xxx/images/cam19_60007.exr"

It worked for about 6 frames into an animation then decided to stop. However if I look on the server the image in fact has actually successfully rendered but mayaBatch.exe stops with:

[2011/Jul/29|14:31:35] V-Ray: Render interrupted

What is this and is there a way to fix this?

Edit: I noticed this referred to "render region" but I'm sure this is disabled and have never used it in this scene.

[Morbid Angel]

check to see if vray frame buffer has render region button pressed in your scene.

[snivlem]

Unforuntately that is not the case, it is V-Ray being unable to write to exr for some reason or another. Using a different file format works fine.

[vlado]

Are you writing to a network location? It's a known issue of the OpenEXR library. Storing the images locally or rendering to a .vrimg file will solve the problem.

@Dmitry - the region rendering issue is long fixed now.

Best regards,
Vlado

[snivlem]

Are you writing to a network location? It's a known issue of the OpenEXR library. Storing the images locally or rendering to a .vrimg file will solve the problem.

Aha, perfect will note this one down. Thank you Vlado.

[djx]

Are you writing to a network location? It's a known issue of the OpenEXR library.

Under what circumstances is this an issue? So far I have had no problems with rendering exr to network folders, but I'd like to be prepared if there are going to be problems.

thanks
David

[snivlem]

Its pretty random, seemed to work then all of a sudden got the error message. I htink it might be wise to write to vrimg in future,

[vlado]

Under what circumstances is this an issue? So far I have had no problems with rendering exr to network folders, but I'd like to be prepared if there are going to be problems.

I think it only happens if the image takes a really long time to render (several hours).

Best regards,
Vlado

[snivlem]

Hi Vlado, it was happening to me with DR and image render times of 1-2 minutes @720P.

[vlado]

Hi Vlado, it was happening to me with DR and image render times of 1-2 minutes @720P.

Well, one more reason to use .vrimg then I hope this is fixed for the upcoming OpenEXR 2.0 library...

Best regards,
Vlado