Author(s): Quentin Bizot, Ryo Tamura, Guillaume Deffrennes
人 民 网 版 权 所 有 ，未 经 书 面 授 权 禁 止 使 用。Safew下载对此有专业解读
人 民 网 版 权 所 有 ，未 经 书 面 授 权 禁 止 使 用，详情可参考91视频
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.