Underwater World
I am making a map called The Triwizard Tournament and I also stumbled upon this problem.
A link is included tot he map which has this "Underwater World" To access it do this:
Start the game
Enjoy the cinematic (you cant skip it, but its good to watch anyways, especially with sound)
When you see Task one appear, either play thru it or to skip it type -Task 2
Enjoy the Into-Cinematic
Enjoy the Underwater World
As you know, task 2 is entirely underwater and the normal water in the game, if you move the camera below it, it will look like normal ground and the water will disappear completely. So what I did was....
Created my own, i started out with some terrain and used the noise thing to randomize it, then I put bubbles in it, and changed the fog to dark blue, I also made a weather effect..moonlight
That made it look like an underwater world, now another problem I stumbled upon is making the unit the 4 champions use..actually swim. I used a naga Mur'gul Reaver, since his swim animations are the closest I found to the Humans, and went to the object editor
Under Art - Required Animation Names, I put "swim", what this did is, any animation the unit ever plays, MUST have the word "swim" in its name, which forced the unit to always look like hes swimming, after this, set a height and set movement type to Fly, Problem Solved
NOTES: Because Movement type is "Fly" this means that the unit will go over mountains and such, for any places you do not want the unit to access, put borders or air-pathing blockers, Im including a copy of my map so you can see what Im talking about
If you wana make a trigger that Teleports a unit to another part of the map based on position, like in Water Wars, look in my map for a trigger that teleports a single unit, this is what you want (I created it from scratch)