Synchronize copies of material.h

Author: hollasch

CHANGELOG.md

@@ -8,7 +8,7 @@ Change Log -- Ray Tracing in One Weekend
   - Fix: Standardized naming for ray-t and time parameters (#746)
   - Fix: `random_unit_vector()` was incorrect (#697)
   - Fix: Synchronize text and copies of `hittable.h`
-  - Fix: Synchronize copies of `hittable_list.h`
+  - Fix: Synchronize copies of `hittable_list.h`, `material.h`
 
 ### In One Weekend
 

src/TheNextWeek/material.h

@@ -17,13 +17,6 @@
 #include "texture.h"
 
 
-double schlick(double cosine, double ref_idx) {
-    auto r0 = (1-ref_idx) / (1+ref_idx);
-    r0 = r0*r0;
-    return r0 + (1-r0)*pow((1 - cosine),5);
-}
-
-
 class material {
     public:
         virtual color emitted(double u, double v, const point3& p) const {

src/TheRestOfYourLife/material.h

@@ -17,13 +17,6 @@
 #include "texture.h"
 
 
-double schlick(double cosine, double ref_idx) {
-    auto r0 = (1-ref_idx) / (1+ref_idx);
-    r0 = r0*r0;
-    return r0 + (1-r0)*pow((1 - cosine),5);
-}
-
-
 struct scatter_record {
     ray specular_ray;
     bool is_specular;