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Tetra-Cubes: An algorithm to generate 3D isosurfaces based upon tetrahedra

We present the tetra-cubes iso-surface extraction technique. Tetra-cubes is similar to the well- know marching-cubestechnique, but its basic building block consists of tetrahedral cells instead of cubes. When the original cells are not tetrahedral cells, tetra-cubes converts them to tetrahedra. We show that our technique is simpler than marching-cubes and does not have ambiguity configurations, leading to simpler iso-surface generation. We advocate the use of tetra-cubes due to its simplicity of implementation and generality.