115 struct Vector3 {  struct
117     Vector3() : x_(0.0f), y_(0.0f), z_(0.0f) {}  in Vector3()  function
118     Vector3(float inX, float inY, float inZ)  in Vector3()  function
120     friend Vector3 operator-(const Vector3& v)
122         return Vector3 { -v.x_, -v.y_, -v.z_ };
124     friend Vector3 operator+(const Vector3& a, const Vector3& b)
126         return Vector3 { a.x_ + b.x_, a.y_ + b.y_, a.z_ + b.z_ };
128     friend Vector3 operator-(const Vector3& a, const Vector3& b)
130         return Vector3 { a.x_ - b.x_, a.y_ - b.y_, a.z_ - b.z_ };
133     friend Vector3 operator*(const Vector3& vec, float scalar)
135         return Vector3(vec.x_ * scalar, vec.y_ * scalar, vec.z_ * scalar);
138     friend Vector3 operator*(float scalar, const Vector3& vec)
140         return Vector3(vec.x_ * scalar, vec.y_ * scalar, vec.z_ * scalar);
143     Vector3& operator*=(float scalar)
167     static Vector3 Normalize(const Vector3& vec)  in Normalize()  argument
169         Vector3 temp = vec;  in Normalize()
173     static float Dot(const Vector3& a, const Vector3& b)  in Dot()  argument
177     static Vector3 Cross(const Vector3& a, const Vector3& b)  in Cross()  argument
179         Vector3 temp;  in Cross()
204     Vector3 GetScale() const;
206     Vector3 GetTranslation() const;
230 Matrix4 CreateTranslation(const Vector3& trans);
231 Matrix4 CreateLookAt(const Vector3& eye, const Vector3& target, const Vector3& up);
232 Matrix4 CreatePerspective(const Vector3& camera);
236 Vector3 Transform(const Vector3& vec, const Matrix4& mat);
238 Vector3 TransformWithPerspDiv(const Vector3& vec, const Matrix4& mat, float w = 1.0f);