its rendered because there is 0 fps drop when you go through the floor or stare through a wall. its pretty common sense. anything that exists through a mesh is rendered. when you go through the floor there isnt a brief pause or load in which the water is generated, because it already exists on the board.
theres a reason every MMO does not put anything underneath floors. explain to me, that if i put drawing detail on 1 and make my game look like its being played on a gameboy i suffer the same GPU heat problems..... hint it isnt because the game quality of 8 bit textures on drawing detail 1 are graphic intensive.
I just played BC2 on max which is way more graphic intensive and i could not even hear my gpu. Turn on ff14 in the middle of camp horizon and it goes to 90 degrees, fan at 90%. maybe it has something to do with there being nothing but endless white underneath the ground in BC2, /shrug.
Nobody knows how this engine works because for one it doesnt even look that great for how extensive it is on hardware. Not to mention in BC2 i have vision of the whole entire map and in this game i have vision of about 300 yalms.
its fine if you want to disagree and look smart, however, thats not why i am making this post.