http://xreal-project.net/?p=190
I finished my implementation of a true 64 bit HDR rendering pipeline. Interesting is that Q3Map2 works with HDR values internally. So I changed the map compiler XMap2 to save lightmaps, the light grid and all other light related information in a new XBSP format without the ugly colour normalization that Q3Map2 usually does when it saves the lightmaps as .tga files. [...]
just a thought...