I made these sewer system (which anybody can use) and I need help unwraping the texture so it would not leave any seams or smears. I have tried and failed to do so. And this isn't the best sewer model, if anybody has any better sewer models that I also would be able to unwrap it easlily. -Thank you Also is made for bge (blender game engine)
You should post it HERE for help on the unwrap. People are more likely to help if you ask in the proper area.
One thing I can mention is you can't really get away from having seams in general. You just have to learn to put them in the right place and/or hide them somehow. Lots of videos on YouTube.