I've been working on a retexture of a sword for a few weeks now, and I've begun to notice a strange, lightning-bolt-shaped zigzag running vertically down the hilt of the sword (which is a flat, slightly curved diamond shape). The normal-shininess really flares up when it's turned to the sun, so it's really hard to see the regular normal map design. The transparency of that part of the normal is 100%, and it's at the highest "engraving" level possible. The lightning-bolt-shape is nowhere in the normal map texture, and it doesn't sem to have any connection with the sword-s geometry. Any suggestions on how to fix this problem are appreciated!
Thanks,
Kohdi