Continuous supplementary weft is the process of placing a supplementary yarn into the web of plain weaving in order to created a pattern that floats on the surface of the weave. When the supplementary yarns need are matalic, such as gold or silver, the term "brocade" is need. The supplementary yarns are placed into the weaving by the assistance of special heddles that raise the warp to a certain pattern allowing the supplementary yarns to be placed alternately to the plain weave yarns. Frior to the invention of these special heddles, shed sticks were placed in the warp to indicate the pattern for the supplementary yarns, thus restricting the repeat of the pattern to one repeat. The use of heddles allowed for endless production of a design.