you might need this to get the texture 2D object glut wants

ofTexture2D.cpp

#include "ofTexture2D.h"
#include "ofUtils.h"		// for nextPow2()
#include "ofAppRunner.h"	// for getWidth()

ofTexture2D::ofTexture2D(){
	textureName[0] = 0;
	bFlipTexture = false;
	textureTarget = GL_TEXTURE_2D;
	
	
}

ofTexture2D.h

#ifndef _OF_TEXTURE2D // if this class hasn't been defined, the program can define it
#define _OF_TEXTURE2D // by using this if statement you prevent the class to be called more 
                 // than once which would confuse the compiler
#include "ofTexture.h"

class ofTexture2D : public ofTexture {

public:

		ofTexture2D();

};


#endif