1
2float _determinant2(mat2 m) { return m[0][0] * m[1][1] - m[0][1] * m[1][0];}out vec4 sk_FragColor;
3uniform mat2 testMatrix2x2;
4uniform vec4 colorGreen;
5uniform vec4 colorRed;
6vec4 main() {
7 return _determinant2(testMatrix2x2) == -2.0 ? colorGreen : colorRed;
8}
9