Full screenshot from POV?

[Tigger]

Is it at all possible to get a 'full' screen shot. By this I mean
something like an environment map cube shot from the current player
position (4 shots that line up horizontally plus one above and one
below). A full panoramic shot would be fine as well if that was
possible.

I've experimented with cg_fov 90 and 'turning' (about) 90 degrees
and taking another, but this produces distortion. Also tried cg_fov 160
and re-shaping the results, but this is not a good approach or result
either.

Any tips?

-Tig