Non-distorted Texture Mapping for Sheared Triangulated Meshes, Bruno Levy and Jean-Laurent Mallet, Siggraph 1998.

This paper splits up the problem of finding a triangulation into two optimization equations. The first optimization is essentially equivalent to Floater's 97 paper, except phrased as an optimization procedure. The second optimization is user-controlled, and lets the user specify desired isoparametric curves.