r_fullbright
This variable toggles the use of lights at full brightness on the map. This allows map authors to remove all of the lighting effects from the map.
The renderer system will render all textures on the map at full brightness.
Do not fullbright the map.
This variable was removed in QWCL and has been re-introduced in this client, however it can only be used when the server is running with cheats enabled (for example "qwsv -cheats"), because it could be used as a cheat by making it easier to see players in dark corners when no fullbright skins are used. You also mustn't use any ruleset and use "-noshadows" as command-line option.