7 float cross_length_2d_hh2h2(vec2 a, vec2 b) {
8 return a.x * b.y - a.y * b.x;
10 float cross_length_2d_ff2f2(vec2 a, vec2 b) {
11 return a.x * b.y - a.y * b.x;
14 sk_FragColor.x = cross_length_2d_hh2h2(ah, bh);
15 sk_FragColor.y = cross_length_2d_ff2f2(af, bf);