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module polyhedrons() {
polyhedron(points = [[1,0,0],[-1,0,0],[0,1,0],[0,-1,0],[0,0,1],[0,0,-1]],
triangles = [[0,4,2],[0,2,5],[0,3,4],[0,5,3],[1,2,4],[1,5,2],[1,4,3], [1,3,5]]);
// One face flipped
translate([2,0,0])
polyhedron(points = [[1,0,0],[-1,0,0],[0,1,0],[0,-1,0],[0,0,1],[0,0,-1]],
triangles = [[0,4,2],[0,2,5],[0,3,4],[0,5,3],[1,2,4],[1,5,2],[1,3,4], [1,3,5]]);
// All faces flipped
translate([4,0,0])
polyhedron(points = [[1,0,0],[-1,0,0],[0,1,0],[0,-1,0],[0,0,1],[0,0,-1]],
triangles = [[0,2,4],[0,5,2],[0,4,3],[0,3,5],[1,4,2],[1,2,5],[1,3,4], [1,5,3]]);
// Containing concave polygons
translate([6,0,0])
polyhedron(points=[
[-0.8,-0.8,-0.8],
[0,0,-0.8],
[0.8,-0.8,-0.8],
[0.8,0.8,-0.8],
[-0.8,0.8,-0.8],
[-0.8,-0.8,0.8],
[0,0,0.8],
[0.8,-0.8,0.8],
[0.8,0.8,0.8],
[-0.8,0.8,0.8],
],
triangles=[
[0,1,2,3,4],
[5,6,1,0],
[6,7,2,1],
[7,8,3,2],
[8,9,4,3],
[9,5,0,4],
[9,8,7,6,5],
], convexity=2);
}
polyhedrons();
translate([0,2,0]) difference() {
polyhedrons();
translate([3,0,2]) cube([8,3,3], center=true);
}
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