- [教练]让我们来看看Maya中的建模。 - [Instructor] Let's take a look at modeling in Maya.
在Maya中，有两种主要的方法 In Maya, there are two main methods
用于创建对象。 for creating objects.
NURBS建模， NURBS modeling,
和多边形建模。 and polygonal modeling.
现在，我们先看看多边形建模。 Now, we'll take a look at poylgonal modeling first.
但在我们这样做之前， But before we do that,
让我们了解基本的差异 let's understand the basic differences
两种建模之间。 between the two types of modeling.
所以，我在这里有两个对象 So, I have two objects here
屏幕上。 on the screen.
我有一个nurbs球体 I have a nurbs sphere
和一个多边形球体。 and a polygonal sphere.
现在，如果我们 Now, if we
移位选择或选取框选择这两个选项 shift select, or marquee select both of these
你会注意到的第一件事是nurbs对象 the first thing you'll notice is that the nurbs object
有很多细节 has a lot less detail
比多边形物体。 than the polygonal object.
那是因为如果我们在这里放大 And that's because if we zoom in here
我们会看到nurbs的对象 we'll see that the nurbs object
由曲线组成 is comprised of curves
而不是直线。 rather than straight lines.
所以，你需要的细节数量 So, the amount of detail you need
创造表面 to create the surface
少了很多。 is a lot less.
所以，它由弯曲的补丁组成 So, it's comprised of curved patches
以及曲线。 as well as curves.
现在，如果我们转到多边形对象 Now if we go over to the polygonal object
你会看到更多的细节。 you'll see that there's more detail.
细节之间，你会看到 And between the detail, you'll see that
我们有直线 we have straight lines
称为边缘。 called edges.
现在，每个 Now, each
小矩形在这里 little rectangle here
实际上是一架平面飞机 is actually a flat plane
在一个多边形的对象 in a polygonal object
在一个nurbs对象中 where in a nurbs object
它实际上是一个弯曲的补丁。 it's actually a curved patch.
所以这就是nurbs和poly的主要区别。 So that's the main difference between nurbs and poly.
现在谈到实际的差异 Now when it comes to practical differences
nurbs表面可以创建曲面 a nurbs surface can create a curve surface
信息少得多。 with a lot less information.
但是多边形曲面具有更多的灵活性。 But a polygonal surface has a lot more flexibility.
所以，nurbs表面往往会分崩离析 So, nurbs surfaces tend to fall apart
当涉及到分支的事情时， when it comes to things that branch,
如角色，或者其他任何东西 such as characters, or really anything
具有复杂的几何形状。 that has complex geometry.
多边形的对象 Polygonal objects
更灵活多了 are a lot more flexible
当涉及到建模。 when it comes to modeling.
所以，大多数人更喜欢多边形。 So, most people prefer polygons.
但是nurbs确实在建模世界中占有一席之地。 But nurbs do have their place in the modeling world.
所以现在我们了解了其中的一些差异， So now that we understand some of those differences,
让我们继续深入多边形建模。 let's go ahead and dive into polygonal modeling.