Added presentations from EVI 2017

EVI - 2017/EVI 21/EVIray/environment.hpp

@@ -0,0 +1,26 @@
+#pragma once
+#ifndef ENVIRONMENT_HPP
+#define ENVIRONMENT_HPP
+
+#include <FreeImage.h>
+#include <glm/vec3.hpp>
+
+#include "ray.hpp"
+
+using glm::vec3;
+
+class Environment {
+public:
+  Environment(vec3 bckg = vec3(1.0f)): m_bckg_color(bckg) { }
+
+  ~Environment() { }
+
+  vec3 get_color(Ray & r) {
+    return m_bckg_color;
+  }
+
+private:
+  vec3 m_bckg_color;
+};
+
+#endif