So small point or spot lights are very cheap to render.

微小的点光源和聚光灯光源非常容易渲染。

youdao

Many spot lights towards a central point on a piece of white paper.

众多的聚光灯都照向一张白纸的中心点。

youdao

Many spot lights towards a central point on a piece of white paper.

众多的聚光灯都照向一张白纸的中心点。

youdao