[video=youtube;blwfDnHRE6Q]https://www.youtube.com/watch?v=blwfDnHRE6Q[/video]
So disabling Mabinogi's ability to calculate which objects are actually closer to the camera than others properly results in all sorts of rendering fun as the game can't... well, the game can't even.
There's no actual use for this, I just think it's interesting.