Guild Wars 2

Water / Portals and all the transparencies invisible?

this one solved to me, hope this helps someone getting the solution faster than me

from: http://www.guildwars2forum.com/threads/10293-Water-is-invisible-and-spell-effects-aren-t-showing-up

close the game, go to your gw2 install folder, right click go to file location on your desktop shortcut should work fine
find the file gw2.tmp
delete it
restart game
water is now back and the .tmp file is rebuilt, for some reason they neglected to flush the temp file automatically

This absolutely isn’t the only solution.

I’ve tested the rumors about Teamspeak overlay plugin and i can confirm it as the source of the problem.

Starting TS3 do not affect the game. Enabling the overlay cause the problem.
You need to disable the plugin and restart the client to get everything back to default.