#ifdef SHADER_VARIABLES_INCLUDE_CB
    int     _AtmosphericScatteringType;
    // Common
    float   _FogColorMode;
    float4  _FogColorDensity; // color in rgb, density in alpha
    float4  _MipFogParameters;
    // Linear fog
    float4  _LinearFogParameters;
    // Exp fog
    float4  _ExpFogParameters;

    float   _SkyTextureMipCount;
#else
    TEXTURE3D(_VBufferLighting);
    TEXTURECUBE(_SkyTexture);

    #define _MipFogNear                     _MipFogParameters.x
    #define _MipFogFar                      _MipFogParameters.y
    #define _MipFogMaxMip                   _MipFogParameters.z

    #define _FogDensity                     _FogColorDensity.w
    #define _FogColor                       _FogColorDensity

    #define _LinearFogStart                 _LinearFogParameters.x
    #define _LinearFogOneOverRange          _LinearFogParameters.y
    #define _LinearFogHeightEnd             _LinearFogParameters.z
    #define _LinearFogHeightOneOverRange    _LinearFogParameters.w

    #define _ExpFogDistance                 _ExpFogParameters.x
    #define _ExpFogBaseHeight               _ExpFogParameters.y
    #define _ExpFogHeightAttenuation        _ExpFogParameters.z
#endif