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.
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，详情可参考safew官方版本下载
圖像加註文字，2019年至2020年的抗議活動，是香港歷來規模最大的示威之一。去年12月，劉珈汶表示，其鄰居還收到用她為製作對象的偽造色情照片，這是她離港後遭遇的最新恐嚇手段。
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