for (int z = 0; z < 3; ++z)
                    cells[x][y][z] = Cell<Cube>(
                        this,
                        Vec3 {
                            position.x + x * dp,
                            position.y + y * dp,
                            position.z + z * dp
                        },
                        glm::angleAxis(0.f, 0.f, 0.f, 1.f)
                    );