diff --git a/util/Transform.cc b/util/Transform.cc
index 3e7be63..962a52d 100644
--- a/util/Transform.cc
+++ b/util/Transform.cc
@@ -54,17 +54,17 @@ void Transform::scale(double xs, double ys, double zs)
     m_matrix *= t;
 }
 
-Vector operator*(Transform & t, const Vector & v)
+Vector Transform::transform_point(Transform & t, const Vector & v)
 {
     return t.getMatrix() * v;
 }
 
-Vector operator%(Transform & t, const Vector & v)
+Vector Transform::transform_direction(Transform & t, const Vector & v)
 {
     return t.getMatrix() % v;
 }
 
-Ray operator*(Transform & t, const Ray & r)
+Ray Transform::transform_ray(Transform & t, const Ray & r)
 {
     Vector newPosition = t.getMatrix() * r.getOrigin();
     Vector newDirection = t.getMatrix() % r.getDirection();
diff --git a/util/Transform.h b/util/Transform.h
index f11d4c5..11af3be 100644
--- a/util/Transform.h
+++ b/util/Transform.h
@@ -15,14 +15,14 @@ class Transform
         void rotate(double angle, double xv, double yv, double zv);
         void scale(double xs, double ys, double zs);
         Matrix & getMatrix() { return m_matrix; }
+        Vector transform_point(Transform & t, const Vector & v);
+        Vector transform_direction(Transform & t, const Vector & v);
+        Ray transform_ray(Transform & t, const Ray & r);
 
     protected:
         Matrix m_matrix;
 };
 
-Vector operator*(Transform & t, const Vector & v);
-Vector operator%(Transform & t, const Vector & v);
-Ray operator*(Transform & t, const Ray & r);
 
 #endif