//glutAddMenuEntry("Rotation/Texture Scale", M_ROTATION_TEXTURE_SCALE);\r
//glutAddSubMenu("Material", materialMenu);\r
//glutAddSubMenu("Texture", textureMenu);\r
//glutAddMenuEntry("Rotation/Texture Scale", M_ROTATION_TEXTURE_SCALE);\r
//glutAddSubMenu("Material", materialMenu);\r
//glutAddSubMenu("Texture", textureMenu);\r