Changeable, shot, or cangiante (iridescent) fabrics are fashionable textile materials typically made of silk or lustrous man-made filament yarns with the warp and filling dyed in contrasting colors. At different angles of viewing, one or the other color predominates, giving rise to the changeable aspect. Since the beginning of the Italian renaissance, such fabrics have been painted by many artists, particularly the Florentines. Such depictions soon were used as representations of the supernatural, with increasing artificiality. They culminated in the frescos of Michelangelo on the ceiling of the Sistine Chapel, giving rise to the definition of a mode of painting in the Italian Renaissance called cangiantismo.