first of all let me say Indigo is better integrated in Blender than ever - the exporter
works 120% of the time, mostly on the first time!
There's one issue I can't solve since the good old 2.49 exporter and this is
to define an exr/hdr environment texture in blender to be picked up by the indigo
exporter.
Usually a background texture is defined in the 'world/texture tab', but it doesn't get exported at the moment.
A nice quick workaround would be to add a custom property in the 'scene tab',
whick adds the entry in the .igs-xml, but I don't know how to format the code, so blender
would write the entry...

Does anyone know, how to format that?
Cheers!