public static void Icosahedron(List<Vector3> vertices, List<int> indices)
{
indices.AddRange(
new int[]
{
0,4,1,
0,9,4,
9,5,4,
4,5,8,
4,8,1,
8,10,1,
8,3,10,
5,3,8,
5,2,3,
2,7,3,
7,10,3,
7,6,10,
7,11,6,
11,0,6,
0,1,6,
6,1,10,
9,0,11,
9,11,2,
9,2,5,
7,2,11
}
.Select(i => i + vertices.Count)
);
var X = 0.525731112119133606f;
var Z = 0.850650808352039932f;
vertices.AddRange(
new[]
{
new Vector3(-X, 0f, Z),
new Vector3(X, 0f, Z),
new Vector3(-X, 0f, -Z),
new Vector3(X, 0f, -Z),
new Vector3(0f, Z, X),
new Vector3(0f, Z, -X),
new Vector3(0f, -Z, X),
new Vector3(0f, -Z, -X),
new Vector3(Z, X, 0f),
new Vector3(-Z, X, 0f),
new Vector3(Z, -X, 0f),
new Vector3(-Z, -X, 0f)
}
);
}