Oldblivion.cfg is the configuration file for Oldblivion. The file is located in your Oldblivion installation path. It contains many settings which you can customize. These settings are listed below

• AllowPreGeforce4
  
• AssembleShaders
  
• AutoUpdate
  
• DisassembleShaders
  
• EmulateHWTNL
  
• FogFar
  
• FogNear
  
• Force1XRenderPath
  
• ForceAlphaBlend
  
• ForceDistantTreeAlpha
  
• ForceLightingAndFog
  
• ForceUpdate
  
• RenderPasses
  
• ShowMissingPixelShaders
  
• ShowMissingVertexShaders
  
• Use20Water
  
• UseCustomShaders
  
• UseNearWaterShaders
  
• Version