Wait. I think I finally understand. You have baked a highpoly's surface detail information into a normal map onto Model_X. You now have a normal map that is tangentially related, forever connected and intertwined, inseperable with Model_X. You logically save this normal map as Model_X_TangentSpace_Normals.png For whatever…
@Thanez Thanks a lot. As for the cylinder and its dimension it's because it represents a real-world object: steel barrel. Actually, these artifacts shouldn't be visible at all, since the game (I’m making this prop for) uses a top-down camera. You can call me a perfectionist (and that would be true) but if there is a…