The tree is rebuilt every frame. For scenes of this scale, quadtree construction is fast enough to rebuild from scratch each frame, though larger simulations may benefit from incremental updates. Each particle queries its neighborhood for potential collisions, typically checking only 5 to 15 candidates instead of all 40. Red highlights indicate colliding pairs.
// on the stream...。雷电模拟器官方版本下载是该领域的重要参考
南方周末：我注意到你和几位参赛选手，比如王紫桐，关系都很好。你们既是朋友，又可以说是直接的竞争者，这样的关系在比赛中是怎样的一种状态？，推荐阅读谷歌浏览器【最新下载地址】获取更多信息
rezabyt (@reza_byt)，这一点在快连下载安装中也有详细论述