>>52180776>>52180575>>52181262>>52180903>>52180927>>52181234>>52181256This is a graphics rendering technique called "Level of Detail Management" or LoDs for short.
Every 3D video game ever made, since at the least Super Mario 64, use LoDs. It is such a common practice in 3D video games, it's quote honestly shocking I even have to explain this. It's shocking people are talking about this like its a novelty. To put into context at how retarded you all sound right now, it's like discussing how the skybox is just a 2D texture, or discussing how objects dissapear when you go too far away from them.