   Texture wrap and clamp
  Hy.I have an image of 320 x 240 and i have created a texture with it .Now i must extrend this texture to fill a 640 x 480 cube.is necessary to set the wrap type?How?Thanks.   
  I assume you want the texture to span the entire 640x480 face once without being repeated. To achieve that just use the texture coordinates (0,0) through (1,1) for the corners of your face.If you want to repeat the texture over the face, set the GL_TEXTURE_WRAP_S/T/R parameters to GL_REPEAT using the glTexParameteri function.   