Normally, one specifies texture coordinates between 0 and 1 to map to texels in the texture image.

If texture coordinates fall out of this range, OpenGL handles them according to the texture wrapping mode.

It is possible to set the wrap mode differently for s and t:

m_texture.SetSamplerObjectParameter(GL_TEXTURE_WRAP_S, GL_REPEAT); 
m_texture.SetSamplerObjectParameter(GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);

High