/vr/ - Retro Games

How come fighting games stopped using this kind of graphics and animation after UMK3? It was the most realistic because it used real people doing real moves.
I mean, early 3d was shitty looking and badly animated ps2 and xbox era and also sluggish af. Like if you want 2d cartoon looking game you have Street Fighter and Marvel but for real martial arts game UMK3 was unsurpassed.