diff --git a/Skeleton.cpp b/Skeleton.cpp
index fb4e53da72316e8763dbbeb9bbd980d72bd61e43..e8d76196a70dd313e77ef1b8f1b33549bf5ac752 100644
--- a/Skeleton.cpp
+++ b/Skeleton.cpp
@@ -42,8 +42,6 @@ int objIndex[12][5]{
         {5, 6, 19, 10, 14}
 };
 
-enum MaterialType { ROUGH, REFLECTIVE };
-
 struct Hit;
 struct Ray;
 struct Light;
@@ -53,14 +51,13 @@ struct Material {
 	vec3 ka, kd, ks;
 	float  shininess;
 	vec3 F0;
-	MaterialType type;
-	Material(MaterialType t): type(t) {}
+	Material() {}
     
     virtual void trace(const Scene& scene, const Hit& hit, const Ray& ray, const std::vector<Light*>& lights, int depth, vec3& outRadiance) = 0;
 };
 
 struct RoughMaterial: Material {
-    RoughMaterial(vec3 _kd, vec3 _ks, float _shininess): Material(ROUGH) {
+    RoughMaterial(vec3 _kd, vec3 _ks, float _shininess) {
         ka = _kd * M_PI;
         kd = _kd;
         ks = _ks;
@@ -75,7 +72,7 @@ vec3 operator/(const vec3& num, const vec3& denom) {
 }
 
 struct ReflectiveMaterial: Material {
-    ReflectiveMaterial(vec3 n, vec3 kappa): Material(REFLECTIVE) {
+    ReflectiveMaterial(vec3 n, vec3 kappa) {
         vec3 one(1, 1, 1);
         F0 = ((n - one)*(n - one) + kappa*kappa) / ((n + one)*(n + one) + kappa*kappa);
     }