| #version 400 | |
| float _determinant2(mat2 m) { | |
| return m[0].x*m[1].y - m[0].y*m[1].x; | |
| } | |
| out vec4 sk_FragColor; | |
| uniform mat2 testMatrix2x2; | |
| uniform vec4 colorGreen; | |
| uniform vec4 colorRed; | |
| vec4 main() { | |
| return _determinant2(testMatrix2x2) == -2.0 ? colorGreen : colorRed; | |
| } |