1 files changed, 6 insertions(+), 0 deletions(-)

M vector.ha

@@ 26,6 26,12 @@ export fn sum(v1: vector, v2: vector) vector = vector {
 
 export fn diff(v1: vector, v2: vector) vector = sum(v1, neg(v2));
 
+export fn cross(v1: vector, v2: vector) vector = vector {
+	x = v1.y * v2.z - v1.z * v2.y,
+	y = v1.z * v2.x - v1.x * v2.z,
+	z = v1.x * v2.y - v1.y * v2.x,
+};
+
 export fn dot(v1: vector, v2: vector) f64 = v1.x * v2.x + v1.y * v2.y + v1.z * v2.z;
 
 export fn length(v: vector) f64 = math::sqrtf64(dot(v, v));