text: #include "SimpleImage.h"
  #include "Eigen/Dense"
  #ifndef LIGHT_H_
  #define LIGHT_H_
  class Light {
  public:
    Eigen::Vector4d location;
    RGBColor color;
  
    Light() : location(Eigen::Vector4d(0.0,0.0,0.0,1.0)), color(RGBColor(1.0,1.0,1.0))
  {
  	;
  }
  
    Light(Eigen::Vector4d location, RGBColor color) {
      this->location = location;
      this->color = color;
    }
  };
  #endif
  