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A multi-resolution model with respectively 2918, 4849 and 15076
triangles. The original model is on the left and was refined using a
midpoint insertion technique.
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A multi-resolution model obtained by simplification of the original model (in the top left corner). The "memoryless simplification" algorithm of Lindstrom and Turk was used. The number of triangles are respectively 96966, 13334, 3334 and 668.
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Detail of the heads of the first two models (96966 and 13334 triangles respectively) showing the distribution of the triangles. On the coarser model, note how the size of the triangles varies in the more detailed zones (nostrils, eye, ears, jaw) relative to the less feature-rich areas (neck).
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A Delaunay triangulation of a tilted square grid. This is a much more
difficult test than it looks. Due to the rotation, a lot of points are
nearly co-linear or co-circular. This is one of the cases where robust
geometric predicates are necessary.
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Difference between a tetrahedron and a sphere.
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Union of a sphere and a tetrahedron.
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Difference between a sphere and a tetrahedron.
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Intersection of a sphere and a tetrahedron.
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Difference between a mushroom and a goblet.
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A model decomposed into triangle strips for fast rendering. Each strip has a different color. The black lines link all the successive triangles.
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A seashell model decomposed into triangle strips for fast rendering. Each strip has a different color. The black lines link all the successive triangles.
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A triangulated sphere colored according to the quality of the
triangles. The file has been generated by the srf2oogl utility program
and displayed using geomview.
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A few examples of what GTS can do
