I'm using an older Unreal editor to make maps for Gears of War and I'm trying to achieve a dark horror feel. The closest example I can find is something that the Diablo 3 fans wanted from Diablo3 in this pic:http://www.shacknews.com/screenshots.x?gallery=10458&game_id=5483&id=123996#img123997
*Please excuse the language, the pic is not mine.
I'm looking to create that same dark grainy effect by either using post processing or adding a material node in the PPE chain. However, when I play with de-saturation, I get a completely washed out look. I know UDK just added a film grain effect but unfortunately I can't access that in the GoW editor.
Any help would be greatly appreciated, especially with the material editor (which seems to have much if not the same capability of UDK's material editor).