use "model";

object =
    MeshGeo([
         1,  1,  1,  1,  1,  1, 0, 0,
         1, -1, -1,  1, -1, -1, 0, 0,
        -1,  1, -1, -1,  1, -1, 0, 0,
        -1, -1,  1, -1, -1,  1, 0, 0
    ],[
        0, 2, 1,
        0, 3, 2,
        0, 1, 3,
        1, 2, 3
    ]);