80 vertices in 2-fold dihedral symmetry has triangle strips of 4 different lengths.
80 vertices in 2-fold dihedral symmetry has triangle strips of 4 different lengths.
We can also get 80-vertex tetrahedral symmetry with a more "traditional" arrangement of 12 pentagons and the rest hexagons.
Here is an 80-vertex sphere in tetrahedral symmetry with 24 valence-7 vertices.
Tetrahedral symmetry requires that a general point be in a set of 12 -- on each of the 4 faces in each of 3 orientations. You can also add 4 points at the vertices, 4 at each face center, or 6 at each edge center. Combined, any even number of points >= 4 can be arranged with tetrahedral symmetry, albeit not always evenly.
Here is 50 points in tetrahedral symmetry which requires that some of them have valence 7.
LucasArts games emulator DREAMM 4.0 is in beta and it's time to give it some more attention.
Run all retro LucasArts games on Linux/Mac/Windows.
If you want to help and especially if you are a fan of any of the games below, please try them out.
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Play cross-platform against each other!
Outlaws
Dark Forces II: Jedi Knight
Mysteries of the Sith
X-Wing vs. TIE Fighter
X-Wing Alliance
Rebellion
Star Wars: Racer
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50 vertices arranged in D6 symmetry is interesting in that it forms two different but close in length triangle strips -- one following the longitudes and the other the latitudes.
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And 22 vertices can also arrange with 2-fold cylindrical symmetry that runs all the pentagons together into one long strip. It produces one long triangle strip and three short ones.
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22 vertices can also arrange with 2-fold dihedral symmetry with two strips of six pentagons each separated by a single loop of 10 hexagons. The triangulation has two long triangle strips and two short ones.
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40 vertices in tetrahedral symmetry gives a mix of the two with 4 strips that wrap twice and three that only wrap once.
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22 vertices can also have tetrahedral symmetry, but now only have four strips that each wrap the sphere twice.
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16 vertices gives a triangulation with tetrahedral symmetry. It has 7 triangle strips.
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In contrast, the 12-vertex icosahedron has 6 triangle strips.
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If you walk triangle strips on this 67 vertex sphere triangulation with 5-fold dihedral symmetry, it makes one complete circuit.
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lens barrier / scanner experiment with stylized blending,
alternate visualization of scene details in intersected and shadowed areas when viewed thru the barrier.
Shader jam tonight! 21:00 BST. https://twitch.tv/FieldFxDemo. With drum and bass energy thanks to echo~parallax. Right after Hoffman on https://twitch.tv/djh0ffman, which is starting soon! #demoscene #shaders #livecoding
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https://www.youtube.com/watch?v=EFB-4KhJcj8
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https://www.youtube.com/watch?v=KmjMSC_xT0s
Would you like to add great-looking visual effects to your game made in the Godot Engine? Then you're in the right place! This pack contains 80 shaders from my own collection, ready to use immediately in any free or commercial product.
Zoomed circle inversion