1. A method for integrating an external three-dimensional character into a character creation system, comprising: importing a three-dimensional model of a character, the three-dimensional model comprising a three-dimensional character mesh having a plurality of vertices; identifying, by at least one processor, a vertex of the three-dimensional character mesh that does not have a one-to-one match with a vertex of a predefined three-dimensional template mesh; identifying, based on the vertex of the character mesh, a plurality of related vertices within the predefined three-dimensional template mesh; determining, for the vertex of the character mesh, a correspondence value based on the plurality of identified related vertices from the template mesh; and associating the vertex of the character mesh with the correspondence value.