VRay IRMap Merger
This script merges multiple *.vrmap files from a selected folder. Tested on Max 2012, Vray 2.0.
The benefit of rendering separate irradiance maps is that you can use distributed rendering. As with multi-frame incremental method, the map gets overwritten if multiple machines are being used.
If you have a different version of Max and/or your VRay installation directory is other than the default one, please follow the instructions inside this script. The only thing you will have to change is the imapviewer.exe location folder. Any suggestions on how things could be improved are highly appreciated.