I've managed ot compile a version of Torus that does not render the players as black outlines. It was not the lack of lighting, nor the bright textures. Turns out the solution was to compile with -fastgrid instead of -gridbounce.

Either way; it's the same map as before, but now one can see what team one is on:

http://www.notam02.no/~clund/nexuiz/Torus_v1.1.pk3