SWAT 4: Graphical Enrichment Mod (aka SWAT 4: GEM) is changing nearly all game textures, partly with enhanced originals, partly with hi-res variants.
This is a screenshot from the SWAT 4 Editor that I captured back in the days of alpha testing. Please note, that these exact movie posters will not appear in the final version of the mod, because I obviously don’t want to interfere with any copyrights. This screenshot is showing you comparison of regular and hi-res textures at a very close distance, where you can already see some differences. This is simulating a situation of standing very close to the object and even using a zoom-in feature as well. That’s something players would not normally do in the game, simply because from a normal gameplay perspective, there is no purpose of zooming-in to objects you are already standing right in front of.