code: public void setSpecular(float red, float green, float blue){
          specular[0] = red;
          specular[1] = green;
          specular[2] = blue;
          Sp = true;
      }
docs: Sets the specular color of the materials used for shapes drawn to the screen.
  
  @param red
  The red color of the specular.
  @param green
  The green color of the specular.
  @param blue
  The blue color of the specular.