diff --git a/include/material.h b/include/material.h
index b7a63dd..03c44ba 100644
--- a/include/material.h
+++ b/include/material.h
@@ -23,7 +23,7 @@ class lambertian : public material {
     bool scatter(const ray& r_in, const hit_record& rec, color& attenuation, ray& scattered)
     const override {
         auto scatter_direction = rec.normal + random_unit_vector();
-              // Catch degenerate scatter direction
+            
         if (scatter_direction.near_zero())
             scatter_direction = rec.normal;
 
@@ -81,11 +81,10 @@ class dielectric : public material {
     }
 
   private:
-    // Refractive index in vacuum or air, or the ratio of the material's refractive index over
-    // the refractive index of the enclosing media
+    
     double refraction_index;
       static double reflectance(double cosine, double refraction_index) {
-        // Use Schlick's approximation for reflectance.
+        
         auto r0 = (1 - refraction_index) / (1 + refraction_index);
         r0 = r0*r0;
         return r0 + (1-r0)*std::pow((1 - cosine),5);