   Draw part of a texture
  Hi,I have a texture of 20x40, but in certain cases I only want to draw the top part: 20x20.I've tried to do this with glTexCoord2f(), but this seems to smooth the texture. Can I somehow accomplish this without the smoothing? So just that part of the texture and no more...Thank you.Decrius   
  Yes glTexCoord2f is the correct way to go. As for changing the smoothing, take a look at texture filters and glTexParameteri.   ;  I'm not sure I understand the problem.  If you want to render only the top part of the texture (assuming you're mapping the texture to a quad), your texture coordiantes should be in the range [0,0.5] - [1,1].If your problem is that doing this seems to stretch the top half of the texture across a 20x40 quad, well, you need to make your quad smaller. :-)Cheers,--Brian;  Alright, this is what I use:glBindTexture(GL_TEXTURE_2D, filemanager.get_texture(0, 2));    glBegin(GL_QUADS);   glTexCoord2f(0, 0); glVertex2i(((window.w - 220)/2), ((window.h - 20)/2));   glTexCoord2f(1, 0); glVertex2i(((window.w - 60)/2), ((window.h - 20)/2));   glTexCoord2f(1, (40/236)); glVertex2i(((window.w - 60)/2), ((window.h + 20)/2));   glTexCoord2f(0, (40/236)); glVertex2i(((window.w - 220)/2), ((window.h + 20)/2));    glEnd();The texture is 236 pixels high, and it should only display the top 40 pixels.These are the parameters I use:glEnable(GL_TEXTURE_2D);    glEnable(GL_BLEND);    glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);glGenTextures(1, &textures[i_min + i]);  glBindTexture(GL_TEXTURE_2D, textures[i_min + i]);  glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);  glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);  glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);  glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);  glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, image->getWidth(), image->getHeight(), 0, GL_RGBA, GL_UNSIGNED_BYTE, image->getPixels());Thanks.   ;  this may end up as zero(40/236)try (40.0/236.0) etc   ;  Okay thanks =/, that was really stupid :)   