Implement V3::Direction

include/J3ML/LinearAlgebra/Vector3.h

@@ -37,6 +37,11 @@ public:
         b = b.Normalize();
     }
 
+
+    //Returns the DirectionVector for a given angle.
+    Vector3 Direction(const Vector3 &rhs) const;
+
+
     static void Orthonormalize(Vector3& a, Vector3& b, Vector3& c)
     {
         a = a.Normalize();

src/J3ML/LinearAlgebra/Matrix3x3.cpp

@@ -213,7 +213,6 @@ namespace LinearAlgebra {
         elems[0][2] = c1*a.x*a.z+s*a.y;
         elems[1][2] = c1*a.y*a.z-s*a.x;
         elems[2][2] = c+c1*a.z*a.z;
-
     }
 
     Matrix3x3 Matrix3x3::RotateAxisAngle(const Vector3 &axis, float angleRadians) {

src/J3ML/LinearAlgebra/Vector3.cpp

@@ -301,5 +301,12 @@ namespace LinearAlgebra {
         return lhs.AngleBetween(rhs);
     }
 
+    Vector3 Vector3::Direction(const Vector3 &rhs) const {
+        float x = (cos(Math::Radians(rhs.y)) * cos(Math::Radians(rhs.x)));
+        float y = -sin(Math::Radians(rhs.x));
+        float z = (sin(Math::Radians(rhs.y)) * cos(Math::Radians(rhs.x)));
+        return {x, y, z};
+    }
+
 #pragma endregion
 }