When two lines meet at a point, or vertex, an angle is formed.

当两条线相交在一，即时，就形成了一角。

Here’s a closer look at what happens when we make the folds at this vertex.

下面仔细看看我们在这做折叠时会发生什么。

Let's begin with the first step, called vertex shading.

让我们从第一步开始，叫做色。

So let's focus on a single vertex.

所以让我们专注于一。

V stands for vertices, E for edges, F for faces.

V 代表，E 代表边，F 代表面。

Here's a closer look at what happens when we make the falls at this vertex.

下面仔细看看我们在这坠落时会发生什么。

So to our question, can you make it so that every vertex has a red, green and blue neighbor?

那么，对于我们的这问题，你能做到让每都有一红邻、绿邻和蓝邻吗？

Now I say that the complexity of a component is the number of edges minus the number of vertices.

现在我说，一组件的复杂度是其边的数量减去的数量。

Or I could put a tail on that, and that would be another edge, another vertex.

或者我可以在那上面加一条尾巴，这样就多了一条边和一。

You attach numbers to every vertex in the following way.

您以如下方式为每赋予编号。

If we add a mountain fold at this vertex, there are three valleys and two mountains.

如果我们在这加上一山折，就是三山谷和两山峰。

Though in that case, colors were given to pairs of vertices instead of individual ones.

虽然在这种情况下，颜色是给对而不是单的。

So we can see here it says, " Consider reducing the number of triangles and consider reducing the work in the vertex shader."

“考虑减少三角形的数量，并考虑减少色的工作。”

So if I have a loop, I have like a loop of length five, has five edges and five vertices.

所以，如果我有一环，比如长度为五的环，它就有五条边和五。

So every time you have an edge between vertices, you take the difference between those numbers.

因此，每当两之间存在一条边时，你就取这两编号之差。

Like it might have 10 vertices and nine edges to tie them together.

比如它可能有10和9条边将它们连接起来。

Whose corners have vertices (1, 1, 1), (1, 1, -1), on and on and on.

哪些角的是(1, 1, 1)，(1, 1, -1)，等等等等。

If complexity is one, that means I have one more edge than I have vertexes.

如果复杂度为一，那就意味我的边比多一条。

So I might have like 11 edges and 10 vertices.

所以我可能有11条边和10。

These two stars, which form the vertices of the Summer Triangle along with Deneb, are clearly visible during summer from places in the mid-northern latitudes.

这两颗恒星和天津四一起构成了夏季大三角，在夏季从中纬度地区可以清晰地看到。