Mel or Python command to get V-Ray render path?

[fluxmedia]

Hey all, does anyone know where I can find the documentation for V-Ray specific mel or python commands, or does anyone know the answer to my qn?

I am trying to get the final resolved output path... as in:

In vray common tab:
Path: p:/ztesting/jobexample/mayaproject/
file name: userFolder/<scene>/<layer>/<version>

should be p:/ztesting/jobexample/mayaproject/userFolder/littlejobbie/foreground/12/scenename_xxxx.exr

I can get the general Maya output path, but not the V-Ray specific one.

I have started writing a script to build it up manually, but there are so many variables like digit padding and extensions etc...

Any help or pointers would be appreciated,

Thanks,

Jono

[bigbossfr]

def getVRayRealImageNamePrefix(prefix, renderLayer, camera):
    prefix = prefix.replace("<Layer>", renderLayer)
    prefix = prefix.replace("<layer>", renderLayer)
    prefix = prefix.replace("%Layer", renderLayer)
    prefix = prefix.replace("%layer", renderLayer)
    prefix = prefix.replace("%l", renderLayer)

    return mel.eval('vrayTransformFilename("%s", "%s", "", 0, 0)' % (prefix, camera))

Do an os.path.join with the image output dir and you are done.