Texturebaking + vrimg

[gfree]

Hello, i was wondering whether it would be possible to use render to texture to render not to a tga but to a vrimg with the diffusefilter, rawlightlighting and rawgi all in one file per object. So for instance if i would render a groundplane+box i would get two exr/vrimg files containing the selected elements. I can select the elements seperate and it will export them to a target slot but this makes seperate files.
Any hints on this?