Quake actually had "dynamic lightmaps" - that is flickering lights and such by alternating between two (or more?) lightmaps for the same geometry. It also had m

Quake actually had "dynamic lightmaps" - that is flickering lights and such by alternating between two (or more?) lightmaps for the same geometry. It also had moving level geometry: elevators and all kinds of traps. Granted, both of these features are somewhat hacked into the static BSP level structure, but this only shows that it's "necessary" to have dynamic lighting and moving stuff to offer a good experience.