A two-dimensional code is described, based on Saint Venant's Torsion Problem; to find the warping mode for any considered cross-section, including non- homogeneous material. Each warping mode is achieved for unitary rotation by unit of length. The computational code is tested regarding its capacity of reproducing analytical results for Saint-Venant torsion. Some results for laminated cross sections are also provided. This work is considered the warping for any cross-section, i.e., not limited to thin-walled cross sections. In addition it is considered laminated materials for any cross-section.