It’s the design methodology and optimisation of the source engine. If you pick a source engine triple A game, it uses mainly BSP and meshes for decoration. If you take an unreal engine (3,4) triple A game, it uses mainly meshes.
It’s the design methodology and optimisation of the source engine. If you pick a source engine triple A game, it uses mainly BSP and meshes for decoration. If you take an unreal engine (3,4) triple A game, it uses mainly meshes.