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.
例如，当提示词描述“一阵风吹过”，模型不仅应生成树叶摇摆的画面，更应能推理出这阵风会如何影响远处的旗帜、人物的头发以及水面的波纹。这种基于统一物理逻辑的全局一致性，将是实现AI视频真正沉浸感的关键。
，这一点在51吃瓜中也有详细论述
:first-child]:h-full [&:first-child]:w-full [&:first-child]:mb-0 [&:first-child]:rounded-[inherit] h-full w-full
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