func_water
Used to flood or drain a room with lava or water. This example will flood a room with water from below.
1.Firstly, create a good sized room (300x300x300) and place your info_player_start and a light in there.
2.Next add a water brush below the room. NOTE: you may have to put the water brush in another empty room with light on its surface, otherwise the water surface will be black. Apply the func_water entity to it. Give it a "targetname" of "water1". Set the "lip" value so it stops in the appropriate spot; 8 is a good value, so the bottom of the water brush doesnt come up into the room you're flooding. Set the "angle" value to "-1" for up.
3.Place a trigger_once brush in the room, so when the player walks across it it triggers the water. Give it a "target" of "water1".
4.Compile your map and check it out in Quake2. Here's a sample map showing the example. Comments & Questions to
Quake Workshop