void main() {
    if (half4(int4(0, 0, 1, 2)) == half4(int4(half4(0.01, 0.99, 1.49, 2.75))))
        sk_FragColor = half4(1);
    else
        sk_FragColor = half4(-1);

    if (half4(int4(0, 0, -1, -2)) == half4(int4(half4(-0.01, -0.99, -1.49, -2.75))))
        sk_FragColor = half4(2);
    else
        sk_FragColor = half4(-2);
}