Gameini setting for ubershaders

[alecTwhite]

Does anyone know the gameini setting for ubershaders so I can set it per game or hybrid and real.

Edit:Figured it out by toggling it on and off and checking in the gfx.ini its:
Hybrid:
[Settings]
BackgroundShaderCompiling = True
DisableSpecializedShaders = False

Exclusive:
[Settings]
BackgroundShaderCompiling = False
DisableSpecializedShaders = True

Disabled:
[Settings]
BackgroundShaderCompiling = False
DisableSpecializedShaders = False