Gears of War uses Unreal Engine 3. The editor, I believe, is called "Unreal Editor for Gears of War/Unreal Engine 3". Unreal Tournament 2004 used UE 2.5, and the editor's name was Unreal Editor 3 ;) It goes something like this: Unreal Tournament: UEd 1 and later UEd 2 Unreal Tournament 2003: UEd 3 Unreal Tournament 2004:…
The film grain material is pretty much just a sin and cos manipulation of UV coordinates. Never messed around with UE 2.5 editor but will post the film grain material as reference for you. On the bus right now :( EDIT: Hmm its not sin and cos. Pretty sure I used that in mine..or maybe I changed it to time. Ah well here's…