Exr meta missing when outputting from the max frame buffer

[jamesvecore]

I have a Nuke script that takes the meta data from V-Ray EXR files and creates a 3d camera. The script works great as long as the EXRs are written out from the VRay frame buffer. If an EXR is written from the max frame buffer, two meta data fields are missing in the resulting EXR files:

cameraFNumber
cameraFocalLength

FNumber I don't care about at the moment, but Focal Length is pretty important to re-creating a 3d camera. Is this a bug? Or is it simply a limitation of going through the max frame buffer?

I noticed this behavior in the latest VRay 2.20.03 specifically, but I'm pretty sure this goes back a while. I'm currently testing with 3dsmax 2012 sp2.

Thanks,

-James

[vlado]

For the 3ds Max frame buffer you'd have to set up the meta attributes yourself from MaxScript; I'm not sure there is an API so that we could do this directly from V-Ray.

Best regards,
Vlado