16. Texture wrap parameters

• The GL_TEXTURE_WRAP_S, GL_TEXTURE_WRAP_T parameters control the way texture coordinates outside the range [ 0, 1 ] are handled by OpenGL for the S and T texture coordinates.

• If UV texture coordinates are out of range [ 0, 1 ], the client program can modify the "wrapping" behavior by calling glTexParameterf(). For example,

  
      glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT );
      glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT );
  
  

  GL_REPEAT is the texture parameter value. Possible values are

  
  GL_REPEAT          // the texture is wrapped and infinitely repeated    T ^
  GL_MIRRORED_REPEAT // the texture is repeated in a mirrored fashion       |
  GL_CLAMP_TO_EDGE   // use pixels on texture edge outside [ 0, 1 ] range   |
  GL_CLAMP_TO_BORDER // use constant border color outside [ 0, 1 ] range    +-----> S