For example, in addition to the location, direction, and color of the light, it's possible to control the Angle of the spotlight cone and the center bias of the cone.
例如，除了位置、方向和光线颜色，它还能够控制spotlight锥角和锥体离心值。
Spot lights only shine in one direction, in a cone. They are perfect for flashlights, car headlights or lamp posts. They are the most expensive on the graphics processor.
聚光灯只在一个方向上，在一个圆锥体范围发射光线。它们用作手电筒真是完美，汽车的车头灯或者灯柱。它们在图形处理器上是最耗费资源的。
A problem on parting direction is approached, with the idea of approaching cone.
利用接近锥的概念，探讨了确定开模方向的问题。
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