gamma

inline half3 (half3 sRGB)
{
    return sRGB * (sRGB * (sRGB * 0.305306011h + 0.682171111h) + 0.012522878h);

    
    // return half3(GammToLinearSpaceExact(sRGB.r), GammaToLinearSpaceExact(sRGB.g), GammaToLinearSpaceExact(sRGB.b));
}
inline half3 LinearToGammaSpace(half3 linRGB)
{
    linRGB = max(linRGB, half3(0h,0h,0h));
    return max(1.055h*pow(linRGB,0.416666667h) - 0.055h, 0h);
}
inline bool IsGammaSpace()
{

    return true;
#else
    return unity_ColorSpaceLuminance.w == 0;
#endif
}