sorry to ressurect an old thread
we were using textures from the game Kingpin which were released into public domain, after that a large set of Max Payne textures were released into public domain as well. there weren't any useful texture sites, the only ones out there were for 3d software and not useful so you had to go out into the street and take pictures which became actually possible because right around that time the first affordable digital cameras came out. I think Tweety made a whole lot and I know for sure HellOnStage made his own and he probably had the best set up.
I remember having to go back to place because the lighting was bad or the image was blurry or there was some annoy lens effect. I started taking 3-5 pictures for every useful thing I found, which was kinda weird because this was right after the time you would buy film that could do maybe 12-20 photos or something like that and you to get it developed in a shop.
here's some fun stuff of TrueCombat in real life, basically:
https://imgur.com/a/sNJUsNp