Regions with many nearby points keep subdividing. Regions with few or no points stay large. The tree adapts to the data: dense areas get fine-grained cells, sparse areas stay coarse. The split grid is predetermined (always at midpoints), but the tree only refines cells that need it. Sparse regions stay as single large nodes while dense regions subdivide deeply.
After nine months in space, Nasa astronauts Butch Wilmore and Suni Williams have finally arrived back on Earth.，推荐阅读搜狗输入法2026获取更多信息
В России ответили на имитирующие высадку на Украине учения НАТО18:04，更多细节参见爱思助手下载最新版本
Geometry Transforms
Inside the quixotic team trying to build an entire world in a 20-year-old game