Guard for angleBetweenVectors function to ensure it doesn't return NaN

okalachev · Dec 19, 2023 · d3e7291 · d3e7291
1 parent fcd695f
commit d3e7291
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/flix/vector.h b/flix/vector.h
@@ -79,7 +79,7 @@ class Vector : public Printable
 
 	static float angleBetweenVectors(const Vector& a, const Vector& b)
 	{
-		return acos(dot(a, b) / (a.norm() * b.norm()));
+		return acos(constrain(dot(a, b) / (a.norm() * b.norm()), -1, 1));
 	}
 
 	static Vector angularRatesBetweenVectors(const Vector& u, const Vector& v)