The format is ' MaterialName_suffix.extension'. Use our texture naming conventions to help us automatically choose settings and apply textures to the right shader slots. If you experience issues with compression artifacts, especially on normal maps ('blocky' or 'pixelated' textures, please see this post. 3D Settings always uses full resolution, uncompressed textures. Textures are re-processed each time you change Material settings, with a small delay. For performance reasons, non-'power of 2' textures will not be used the viewer uses to the closest, smaller version.
