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每个 boid 个体都可以得知整体的几何参数，但群体要求其只对其周围某个小邻近范围作出反应。该邻近范围由一个距离（从该个体的中心算起）和一个角度（从其飞行方向算起）决定。此范围外的同伴不予考虑。该临近范围可以认为是一个有限知觉的模型（就像浑浊的水中的鱼一样）；但更恰当的想法可能是，其定义了鸟群影响了个体转向的区域范围。

每个 boid 个体都可以得知整体的几何参数，但群体要求其只对其周围某个小邻近范围作出反应。该邻近范围由一个距离（从该个体的中心算起）和一个角度（从其飞行方向算起）决定。此范围外的同伴不予考虑。该临近范围可以认为是一个有限知觉的模型（就像浑水中的鱼一样）；但更恰当的想法可能是，其定义了鸟群影响了个体转向的区域范围。

  --[[用户:Dorr|Dorr]]（[[用户讨论:Dorr|讨论]]）补充自http://www.red3d.com/cwr/boids/：Each boid has direct access to the whole scene's geometric description, but flocking requires that it reacts only to flockmates within a certain small neighborhood around itself. The neighborhood is characterized by a distance (measured from the center of the boid) and an angle, measured from the boid's direction of flight. Flockmates outside this local neighborhood are ignored. The neighborhood could be considered a model of limited perception (as by fish in murky water) but it is probably more correct to think of it as defining the region in which flockmates influence a boids steering.

  --[[用户:Dorr|Dorr]]（[[用户讨论:Dorr|讨论]]）补充自http://www.red3d.com/cwr/boids/：Each boid has direct access to the whole scene's geometric description, but flocking requires that it reacts only to flockmates within a certain small neighborhood around itself. The neighborhood is characterized by a distance (measured from the center of the boid) and an angle, measured from the boid's direction of flight. Flockmates outside this local neighborhood are ignored. The neighborhood could be considered a model of limited perception (as by fish in murky water) but it is probably more correct to think of it as defining the region in which flockmates influence a boids steering.

The boids framework is often used in computer graphics, providing realistic-looking representations of flocks of birds and other creatures, such as schools of fish or herds of animals. It was for instance used in the 1998 video game Half-Life for the flying bird-like creatures seen at the end of the game on Xen, named "boid" in the game files.

The boids framework is often used in computer graphics, providing realistic-looking representations of flocks of birds and other creatures, such as schools of fish or herds of animals. It was for instance used in the 1998 video game Half-Life for the flying bird-like creatures seen at the end of the game on Xen, named "boid" in the game files.

Boids 框架通常用于计算机图形学，提供鸟群和其他生物（如鱼群）的逼真表现。例如，在1998年的视频游戏《'''半条命 Half-Life'''》中，Xen中游戏结束时出现的类似鸟类的飞行生物就使用了该框架（游戏文件中命名为“ boid”）。

Boids 框架通常用于计算机图形学，提供鸟群和其他生物（如鱼群）的逼真表现。例如，在1998年的电子游戏《'''半条命 Half-Life'''》中，游戏结束时Xen中出现的类似鸟类的飞行生物就使用了该框架（游戏文件中命名为“ boid”）。