In Black Ops 2 mod tools (or the older WaW/BO1 tools ported forward), CODE refers to the GSC (Game Script Compiler) scripts.
Technically, the code_pre_gfx file is a container for pre-loaded assets that the game engine needs to access immediately upon startup, before the main menu even fully renders. code-pre-gfx black ops 2
Unlike standard map files (which load textures specific to a level) or the common .ff files (which handle fast-file data), the pre_gfx handles the universal constants of the game world. This includes: In Black Ops 2 mod tools (or the
In essence, code_pre_gfx is the "foundation" of the house. You can swap out the furniture (maps) or the paint (weapon skins), but without the foundation, the structure collapses. In essence, code_pre_gfx is the "foundation" of the house
Surprisingly, a common trigger is the physical cable connecting your monitor. High-refresh-rate monitors using DisplayPort (especially at 144Hz or higher) confuse the game's "pre-gfx" handshake. The game tries to query monitor capabilities, gets an unexpected refresh rate, and aborts.