   tearing (gaps between tiles) ?
  HiIm doing a topdown rts in a tilebased world. When i pan my map, sometimes there is a one-pixel gap between rows of tiles, so the background is shown.If i move my pan a couple of pixels, the gap disappears. These gaps show up and disappear when i move to different positions, and i see no pattern. What is this and can i solve it?(if i make the graphics of the tiles 43x43 pixels (all calc are done with 42 pixels tile-dimentions) i never get the gaps, but instead most of the time tiles will now overlap instead as i only have the gaps sometimes)ThanksErik   
  Do you use integer values for the coordinates of the tiles, but float for the offset (pan) value?   ;  I'm not sure which API you are using, but this should work for OpenGL.In your texture creation code, you need to put these lines:glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);You probably already have these lines, but with GL_REPEAT instead of GL_CLAMP. GL_REPEAT wraps the texture around, which can sometimes cause banding because the rightmost column of pixels drawn is actually from the leftmost part of the texture. GL_CLAMP stops this.If this doesn't work, changing your texture coordinates to something slightly different than (0,1) usually works. Say, (0.01f, 0.99f).Good luck,   ;  Yes, i did mix 'emI now have only int and now the problem is gone. ThanksE   