uniform half4 inputVal, expected;
uniform half4 colorGreen, colorRed;

half4 main(float2 coords) {
    const half4 constVal1 = half4(0, 0.2449186624037091292, 0.46211715726000975, 0.761594155955764);
    return (atanh(inputVal.x)     == expected.x     &&
            atanh(inputVal.xy)    == expected.xy    &&
            atanh(inputVal.xyz)   == expected.xyz   &&
            atanh(inputVal.xyzw)  == expected.xyzw  &&
            atanh(constVal1.x)    == expected.x     &&
            atanh(constVal1.xy)   == expected.xy    &&
            atanh(constVal1.xyz)  == expected.xyz   &&
            atanh(constVal1.xyzw) == expected.xyzw) ? colorGreen : colorRed;
}