out vec4 sk_FragColor; uniform vec4 input; uniform vec4 expected; uniform vec4 colorGreen; uniform vec4 colorRed; vec4 main() { return ((((((fract(input.x) == expected.x && fract(input.xy) == expected.xy) && fract(input.xyz) == expected.xyz) && fract(input) == expected) && 0.0 == expected.x) && vec2(0.0, 0.25) == expected.xy) && vec3(0.0, 0.25, 0.5) == expected.xyz) && vec4(0.0, 0.25, 0.5, 0.75) == expected ? colorGreen : colorRed; }