A comparison of local parametric C0 Bézier interpolants for triangular meshes

► Compared schemes: Nagata, Phong tessellation, NLSA (all degree-2), PN (degree-3). ► Geometric interpretation of all the methods. ► Close relation of Phong and NLSA, stability problems for Nagata on general meshes. ► Best performance on GPU: Phong; best on CPU: Nagata. ► Best approximate G1 continuity: PN; best sphere and torus reproduction: Nagata.