out vec4 sk_FragColor; uniform vec4 colorRed; uniform vec4 colorGreen; uniform float unknownInput; vec4 main() { bool _0_ok = true; _0_ok = _0_ok && mat3(unknownInput) == mat3(mat2(1.0)); _0_ok = _0_ok && mat3(9.0, 0.0, 0.0, 0.0, 9.0, 0.0, 0.0, 0.0, unknownInput) == mat3(mat2(9.0)); return _0_ok ? colorGreen : colorRed; }