Most of Vanilla textures were optimized and resized to 512 pixels to increase performance. The texture categories that were optimized and resized are:
Instead to play at low settings or use and try several other people’s ini files. I prefered to keep some settings at high settings like Texture Quality, Lighting, Godrays, Lens Flare and DoF. So, I downgrade the shadows to 512 as also I resized, already mentioned, the textures to increase the performance without sacrificing too much. Personally, worked for me and I guess that I could share this that might help to those that can’t run this game at the highest settings.
Architecture handles airports, buildings, bankers, capsules, cities, shacks and warehouses. Interiors handle buildings, caves, hightechand industrial facilities, institute. submarine and vaults. Landscape hanldes: cliffs, grass, ground, plants, roads, rocks, trees and water(some). Props handles junk and some furnitures. Sky handles clouds, moon and sun. Vehicles handles cars, motocycles, planes, trainsand vertibirds. Water hanldes lakes and rivers as also water contained in other places. Weapons, melee and ranged weapons.
Credit: Darth Animal