用代码创建一个cube-知识点（vertices、triangle、uvs）

资源大湿 · 发表于 2018-8-1 10:08

[code=csharp]using System.Collections;
using System.Collections.Generic;
using UnityEngine;
/// <summary>
/// Draw AC ube. MDOE BY U3DCHINA.COM
/// </summary>
public class DrawACube : MonoBehaviour {
  public GameObject cube;
  // Use this for initialization
  void Start () {
MeshFilter mf = cube.GetComponent<MeshFilter> ();
Mesh mesh = mf.mesh;
Vector3[] vertices = new Vector3[]{
   //front
   new Vector3(-1,1,1),
   new Vector3(1,1,1),
   new Vector3(-1,-1,1),
   new Vector3(1,-1,1),

   //top
   new Vector3(-1,1,-1),
   new Vector3(1,1,-1),
   new Vector3(-1,1,1),
   new Vector3(1,1,1),

   //right

   new Vector3(1,1,1),
   new Vector3(1,1,-1),
   new Vector3(1,-1,1),
   new Vector3(1,-1,-1),
   //left

   new Vector3(-1,1,-1),
   new Vector3(-1,1,1),
   new Vector3(-1,-1,-1),
   new Vector3(-1,-1,1),
   //back

   new Vector3(1,1,-1),
   new Vector3(-1,1,-1),
   new Vector3(1,-1,-1),
   new Vector3(-1,-1,-1),
   //bottom

   new Vector3(-1,-1,1),
   new Vector3(1,-1,1),
   new Vector3(-1,-1,-1),
   new Vector3(1,-1,-1)

};
int[] triangles = new int[]{
   0,2,3,
   3,1,0,

   0+4,2+4,3+4,
   3+4,1+4,0+4,

   0+4*2,2+4*2,3+4*2,
   3+4*2,1+4*2,0+4*2,

   0+4*3,2+4*3,3+4*3,
   3+4*3,1+4*3,0+4*3,

   0+4*4,2+4*4,3+4*4,
   3+4*4,1+4*4,0+4*4,

   0+4*5,2+4*5,3+4*5,
   3+4*5,1+4*5,0+4*5,
};
//UVs//
Vector2[] uvs = new Vector2[]
{
   //front face// 0,0 is bottom left, 1,1 is top right//
   new Vector2(0,1),
   new Vector2(1,1),
   new Vector2(0,0),
   new Vector2(1,0),

   new Vector2(0,1),
   new Vector2(0,0),
   new Vector2(1,1),
   new Vector2(1,0),

   new Vector2(0,1),
   new Vector2(0,0),
   new Vector2(1,1),
   new Vector2(1,0),

   new Vector2(0,1),
   new Vector2(0,0),
   new Vector2(1,1),
   new Vector2(1,0),

   new Vector2(0,1),
   new Vector2(0,0),
   new Vector2(1,1),
   new Vector2(1,0),

   new Vector2(0,1),
   new Vector2(0,0),
   new Vector2(1,1),
   new Vector2(1,0)
};
mesh.Clear ();
mesh.vertices = vertices;
mesh.triangles = triangles;
mesh.uv = uvs;
mesh.RecalculateNormals ();
  }

  // Update is called once per frame
  void Update () {

  }
}
[/code]

资源大湿 · 发表于 2018-8-1 10:20

记住triangles 顺时针绘制

xiaozhishiwo · 发表于 2018-9-17 08:04

楼主是超人

从开始到现在 · 发表于 2018-9-17 08:03

顶顶多好

hjscyl · 发表于 2018-9-17 08:10

真心顶

hjscyl · 发表于 2018-9-17 08:39

说的非常好

hjscyl · 发表于 2018-9-17 08:25

LZ真是人才

a997093108 · 发表于 2018-12-3 22:32

也不能一竿子打死呀！

lvcoc · 发表于 2019-1-9 13:49

感谢楼主的无私分享！

valakaslove · 发表于 2019-7-21 07:54

很不错

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[基础] 用代码创建一个cube-知识点（vertices、triangle、uvs）

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