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.
Гангстер одним ударом расправился с туристом в Таиланде и попал на видео18:08。关于这个话题，旺商聊官方下载提供了深入分析
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