1fn _naga_inverse_3x3_f32(m: mat3x3<f32>) -> mat3x3<f32> {
2    var adj: mat3x3<f32>;
3
4    adj[0][0] =   (m[1][1] * m[2][2] - m[2][1] * m[1][2]);
5    adj[1][0] = - (m[1][0] * m[2][2] - m[2][0] * m[1][2]);
6    adj[2][0] =   (m[1][0] * m[2][1] - m[2][0] * m[1][1]);
7    adj[0][1] = - (m[0][1] * m[2][2] - m[2][1] * m[0][2]);
8    adj[1][1] =   (m[0][0] * m[2][2] - m[2][0] * m[0][2]);
9    adj[2][1] = - (m[0][0] * m[2][1] - m[2][0] * m[0][1]);
10    adj[0][2] =   (m[0][1] * m[1][2] - m[1][1] * m[0][2]);
11    adj[1][2] = - (m[0][0] * m[1][2] - m[1][0] * m[0][2]);
12    adj[2][2] =   (m[0][0] * m[1][1] - m[1][0] * m[0][1]);
13
14    let det: f32 = (m[0][0] * (m[1][1] * m[2][2] - m[1][2] * m[2][1])
15    		- m[0][1] * (m[1][0] * m[2][2] - m[1][2] * m[2][0])
16    		+ m[0][2] * (m[1][0] * m[2][1] - m[1][1] * m[2][0]));
17
18    return adj * (1 / det);
19}