I’m creating a truck tire. There are 32 polygons around the rim. I mapped an image of truck tread to each polygon. I seem to be getting a hairline on the edge between two polygons, as circled in the image. I’ve tried to fix it, checking that there is no line in the image, and that the UVs are not extending past the image bounds, I even backed the UVs up a little into the image, which stretched the image a little, but did not remove the hairline between polygons.
Does anyone have any clue on how to stop it?