• parametrization – energy terms defined on the triangle soup:
    1. E_orient : cross field orientation (per-triangle)
    2. E_trans : transition functions (per-edge, local Gaussian distance weights)
    3. E_fit : fitting to integer values per-computed for each triangle (per-vertex, constrained only)
    4. E_align : place adjacent constrained vertices on the same grid isoline (per-edge, not yet implemented)
  • elephant, varying scale, trans_w=10, fit_w=0.1