text: #ifndef SCENEQUADTESS_H
  #define SCENEQUADTESS_H
  
  #include "scene.h"
  #include "glslprogram.h"
  
  #include "cookbookogl.h"
  
  #include <glm/glm.hpp>
  
  class SceneQuadTess : public Scene
  {
  private:
      GLSLProgram prog;
  
      GLuint vaoHandle;
      glm::mat4 viewport;
  
      void setMatrices();
      void compileAndLinkShader();
  
  public:
      SceneQuadTess();
  
      void initScene();
      void update( float t );
      void render();
      void resize(int, int);
  };
  
  #endif // SCENEQUADTESS_H
  