Scenes in Unity are created by

Unity裡的場景是由許多3D模型或多邊形網格組成

using 3D or polygonal meshes.

而多邊形網格在Unity裡是所有遊戲的基礎架構

Polygonal meshes are the underpinnings

無論是把畫面貼到網格上的簡單2D遊戲

of all games made in Unity.

或一個複雜的分子系統

Whether it's a simple 2D game where the

或是一個全3D的動畫角色

characters are attached to a simple plane,

通通都會用到網格(Mesh)

a complex particle system full of sprites,

遊戲內的所有物件

or a full 3D game with animated characters -

不管是簡單線條或基本平面 複雜的3D角色或幾何環境

that game will use meshes.

都是多邊形網格

All objects in our game, from a simple

多邊形網格或簡稱網格 都是從最基本的點和線元素建立的

quad or basic plane, to a complex

點叫做Vertices或是Verts

3D character or environmental geometry

一點叫做Vertex，是用來定義3D環境裡的點

will be a polygonal mesh.

點和點之間連接起來叫線 這些線叫做邊(Edges)

Polygonal meshes, or simply meshes

許多邊可以組成多邊形(Polygon) 在Unity裡面長得像三角形

are created from very simple basic elements.

許多的多邊形組成了物件的網格

Points and lines.

Unity使用網格但無法創造網格

The points are called Vertices

除了基本的幾何形狀 可以在Unity裡面產生之外

or Verts for short.

其他模型都必須用第三方建模軟體建立

A single point is a Vertex.

那些模型不管是自己建立的還是買來的 都需要先匯入Unity才能在場景裡使用

These define a point in 3D space.

更多模型匯入功能請看官方教學

Between these points lines are drawn.

These lines are called Edges.

The edges create something called a Polygon.

which in Unity will be a triangle.

These polygons define the mesh of our object.

The meshes used in Unity

are not created in Unity.

With the exception of the basic primitive

shapes which are built in to Unity

all of the meshes that we will be using

need to be created in an external

mesh modelling application.

These mesh models, either created or

purchased will need to be imported in to

Unity for use in our scenes.

See the Mesh Import lesson linked below.