We have the geometry, now it's time to create the emitter.

我们有了几何体，现在要创建发射器。

youdao

First, we have to think about the geometry of our rectangle.

首先，我们不得不考虑我们的矩形的几何结构。

youdao

First, we have to think about the geometry of our rectangle.

首先，我们不得不考虑我们的矩形的几何结构。

youdao