And over the years, more polygon lines were added, making the players look more and more lifelike.

并累月，增加了更的形线条，让球员们看起来越来越逼真。

The tangram is a dissection puzzle consisting of seven flat polygons which are put together to form shapes.

七巧板是一个小块拼图游戏，由七个扁平的形组，这些形放在一起可以形其他形状。

Importantly, it also works for some polygons with fewer sides, including heptagons, hexagons, and pentagons.

重要的是， 它也适用于一些数较少的形，包括七形、六形和五形。

Look at this beautiful teapot made out of polygons.

看看这个由形组的漂亮的茶。

A collection of polygons like this is a mesh.

像这样的形集合称为网格。

Or is it almost like beyond, it's the polygon thing you mentioned from a square.

或者说它几乎超越了你提到的从正方形开始的形概念。

I just like the jaggy, polygonal look of it.

我就喜欢它那种带有锯齿、形质感的外观。

This works with larger polygons too.

这也适用于更大的形。

We then do the ray-triangle intersection calculation that we mentioned earlier with just these six triangles.

然后我们进行之前提到的六个形的光线三角形相交计算。

She talks about pale cement paths that slice green lawns into polygonal fragments and walls of brown brick pockmarked by centuries of history.

她谈到了将绿色草坪切形碎片的浅色水泥小路，以及布满数百历史痕迹的棕色砖墙。

And finally, there’s the upper-left polygon.

最后，还有左上角的形。

For example, the bottom-most polygon is tilted downwards, away from the light source, which means it’s going to be dark.

例如，最底部的形朝下倾斜，远离光源，这意味着它会显得很暗。

Unfortunately, it also makes all those polygon boundaries really noticeable and the mesh doesn’t look smooth.

不幸的是，这也使得所有的形界变得非常明显，网格看起来不光滑。

This process repeats for all pixels in the polygon, and that’s how we get textures.

这个过程会对形中的所有像素重复进行，这样我们就得到了纹理。

In a similar way, the rightmost polygon is slightly facing away from the light, so it will be partially illuminated.

类似地，最右的形稍微背对着光源，所以它会部分被照亮。

And this teapot can sit in an even bigger scene, comprised of millions of polygons.

而这个茶可以放置在一个更大的场景中，由数以百万计的形组。

He spent 25 years on the effort computing to high accuracy the perimeter of a polygon with two to the 62 sides.

他花了 25 的时间努力计算出一个形的周长，该形的周长为 62 条。

Consider this example scene with three overlapping polygons.

考虑这个包含三个重叠形的示例场景。

To make things easier to follow, we’re going to color the polygons differently.

为了让大家更容易理解，我们将给形涂上不同的颜色。

The direction they face is called the Surface Normal, and we can visualize that direction with a little 3D arrow that’s perpendicular to the polygon’s surface.

它们面对的方向称为表面法线，我们可以用一个小的垂直于形表面的3D箭头来可视化这个方向。