Added emissive color to material.

material.hpp

@@ -11,6 +11,7 @@ using glm::vec3;
 
 class Material {
 public:
+  vec3 m_emission;
   vec3 m_diffuse;
   vec3 m_specular;
   float m_rho;

path_tracer.cpp

@@ -116,7 +116,7 @@ vec3 PathTracer::trace_ray(Ray & r, vector<Figure *> & v_figures, vector<Light *
     }
 
     // Return final color.
-    return color;
+    return _f->m_mat->m_emission + color;
 
   } else {
     if (e != NULL)

whitted_tracer.cpp

@@ -85,7 +85,7 @@ vec3 WhittedTracer::trace_ray(Ray & r, vector<Figure *> & v_figures, vector<Ligh
     }
 
     // Return final color.
-    return color;
+    return _f->m_mat->m_emission + color;
 
   } else {
     if (e != NULL)