t.to_gpu(); // optional — Metal acceleration
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，详情可参考雷电模拟器官方版本下载
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大部分爭論圍繞著不同研究者使用的不同調查方法。
Add a cluster of points in one corner and watch that corner subdivide deeply while the rest of the space stays untouched. Then scatter a few points across the empty region and watch it split only where needed. The tree grows around the data.