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Seamless montage for texturing 3D models is very important in 3D video games and computer animations. The goal is to generate an arbitrarily large texture from a small sample image while both the sample texture and the result texture must be perceived by human observers to be the same and there is no obvious seam. This is slightly different from texture synthesis whose main principle is that the result texture must be non-periodical. Since there exist substantial periodical textures in real world, this paper presents a method for seamless montage without seams to form periodical textures. First we apply a quilting algorithm together with Wang Tiles to design the tile for montage, and we make comparison between them in terms of practical maneuverability. Then we employ the tile designed through Wang Tiles for seamless montage to generate a large texture with an arbitrary size. We also consider the montage of 3D surface textures under various illumination directions.