I looked a little into deferred shading and it worked very well, but I´ve got other projects to work on at the moment and thus I didn´t invest more than a weekend into it.
The _bmap feature does now btw also work with render targets, this could may help a little in case you haven´t seen it yet...
I think you´ve seen the gpu gems article in your collection about the deferred shading in stalker?^^ They are using forward rendering for reflection and refraction... I tried that once as well and it works wuite well, but any deferred way would of course be much nicer
