public Coord3D[] Sphere(int _radius, int _cutouts = 0)
        {
            List<Coord3D> coordinates = new List<Coord3D>();

            int radiusSquared = _radius * _radius;

            Coord3D[] cutoutOrigins = new Coord3D[_cutouts];
            int[] cutoutRadiuses = new int[_cutouts];
            for (int i = 0; i < _cutouts; i++)
            {
                int xPos = getRandom().Next((int)(_radius * 2)) - _radius;
                int yPos = getRandom().Next((int)(_radius * 2)) - _radius;
                int zPos = getRandom().Next((int)(_radius * 2)) - _radius;
                Coord3D cutoutOrigin = new Coord3D( xPos, yPos, zPos );
                int cutoutRadius = getRandom().Next(4, (int)(_radius * 0.6f));
                cutoutRadius *= cutoutRadius;

                cutoutOrigins[i] = cutoutOrigin;
                cutoutRadiuses[i] = cutoutRadius;
            }

            Coord3D[] addOrigins = new Coord3D[_cutouts];
            int[] addRadiuses = new int[_cutouts];
            for (int i = 0; i < _cutouts; i++)
            {
                int xPos = getRandom().Next((int)(_radius * 2)) - _radius;
                int yPos = getRandom().Next((int)(_radius * 2)) - _radius;
                int zPos = getRandom().Next((int)(_radius * 2)) - _radius;
                Coord3D cutoutOrigin = new Coord3D( xPos, yPos, zPos );
                int cutoutRadius = getRandom().Next(4, (int)(_radius * 0.6f));
                cutoutRadius *= cutoutRadius;

                addOrigins[i] = cutoutOrigin;
                addRadiuses[i] = cutoutRadius;
            }

            float xScale = ((float)getRandom().Next(30, 100)) / 100;
            float yScale = ((float)getRandom().Next(30, 100)) / 100;
            float zScale = ((float)getRandom().Next(30, 100)) / 100;

            //  Distance filled sphere
            for (int x = -_radius; x < _radius; x++)
            {
                for (int y = -_radius; y < _radius; y++)
                {
                    for (int z = -_radius; z < _radius; z++)
                    {
                        Coord3D coord = new Coord3D(x * xScale, y * yScale, z * zScale);
                        float distance = getDistance(x, y, z);
                        if (distance < radiusSquared)
                        {
                            bool isCut = false;

                            for (int i = 0; i < _cutouts; i++)
                            {
                                float cutoutDistance = getDistance(x - cutoutOrigins[i].x, y - cutoutOrigins[i].y, z - cutoutOrigins[i].z);
                                if (cutoutDistance < cutoutRadiuses[i])
                                {
                                    isCut = true;
                                    break;
                                }
                            }

                            if (isCut == false)
                            {
                                for (int i = 0; i < _cutouts; i++)
                                {
                                    float cutoutDistance = getDistance(x - addOrigins[i].x, y - addOrigins[i].y, z - addOrigins[i].z);
                                    if (cutoutDistance < addRadiuses[i])
                                    {
                                        coordinates.Add(coord);
                                        break;
                                    }
                                }
                            }
                        }
                    }
                }
            }

            return coordinates.ToArray();
        }