下面的代码显示了我是如何尝试在脚本中创建一个可以通过某些用户定义的值更改的网格。我打算用它来制作体素地形，水等。但是直到我能弄清楚为什么这不起作用（Unity中没有出现错误），我陷入了僵局。
using UnityEngine
using System.Collections;
[RequireComponent(typeof (MeshFilter))]
public class ProceduralMeshScript : MonoBehaviour {
//PUBLIC
public int meshSize = 1;
public float width = 1f;
public float height = 1f;
//PRIVATE
private MeshFilter mF;
private Mesh mesh;
private Vector3[] verts;
private Vector2[] vertsUV;
private int[] triAs;
// Use this for initialization
void Start () {
mF = GetComponent<MeshFilter> ();
mesh = new Mesh ();
mF.mesh = mesh;
mesh.name = "CustomPlane";
//Create Mesh Resources
CreateVerts ();
CreateTrias ();
}
// Update is called once per frame
void Update () {
}
void CreateVerts(){
//Set verts[] size = equal to the needed number of verts (2 times the x and y of how ever many squares there will be <meshSize>)
verts = new Vector3[meshSize * 2 + meshSize * 2];
//Keep track of current vert
int curVert = 0;
//Create Verts based on the specifed meshSize
for(int x = 0; x < meshSize * 2; x++) {
for(int z = 0; z < meshSize * 2; z++){
float xf = width;
float zf = height;
verts[curVert] = new Vector3(xf * x, 0, zf * z);
curVert++;
}
}
mesh.vertices = verts;
for(int v = 0; v < verts.Length; v++){
Debug.Log("Vert " + v + ": " + verts[v].x + ", " + verts[v].z);
}
}
void CreateTrias(){
//Set triAs[] to the total number of triangle points needed (6 times how ever many squares there will be <meshSize>)
triAs = new int[meshSize * 6];
//Keep track of seet points
int triPoints = 0;
int triFocus = 0;
//Set every triangle point
for (int t = 0; t < triAs.Length; t++) {
switch (triPoints){
case 0:
triAs[t] = triFocus + meshSize * 2;
triPoints++;
Debug.Log("case 0: " + triAs[t]);
break;
case 1:
triAs[t] = triFocus + 1;
triPoints++;
Debug.Log("case 1: " + triAs[t]);
break;
case 2:
triAs[t] = triFocus;
triPoints++;
Debug.Log("case 2: " + triAs[t]);
break;
case 3:
triAs[t] = triFocus + 1;
triPoints++;
Debug.Log("case 3: " + triAs[t]);
break;
case 4:
triAs[t] = triFocus + meshSize * 2;
triPoints++;
Debug.Log("case 4: " + triAs[t]);
break;
case 5:
triAs[t] = triFocus + meshSize * 2 + 1;
triPoints = 0;
triFocus += 2;
Debug.Log("case 5: " + triAs[t]);
break;
default:
triPoints = 0;
triFocus += 2;
break;
}
}
mesh.triangles = triAs;
}
}
答案 0 :(得分：1)
首先修复第1行：
using UnityEngine;
然后，第4行创建MeshRenderrer组件：
[RequireComponent(typeof(MeshFilter)), RequireComponent(typeof(MeshRenderer))]
最后，插入方法＆＃34;开始＆＃34;用于分配默认材料的代码：
MeshRenderer mr = GetComponent<MeshRenderer>();
mr.material = new Material(Shader.Find("Diffuse"));
完整更正的代码：
using UnityEngine;
using System.Collections;
[RequireComponent(typeof(MeshFilter)), RequireComponent(typeof(MeshRenderer))]
public class ProceduralMeshScript : MonoBehaviour
{
//PUBLIC
public int meshSize = 1;
public float width = 1f;
public float height = 1f;
//PRIVATE
private MeshFilter mF;
private Mesh mesh;
private Vector3[] verts;
private Vector2[] vertsUV;
private int[] triAs;
// Use this for initialization
void Start()
{
mF = GetComponent<MeshFilter>();
mesh = new Mesh();
mF.mesh = mesh;
mesh.name = "CustomPlane";
//Assign default material
MeshRenderer mr = GetComponent<MeshRenderer>();
mr.material = new Material(Shader.Find("Diffuse"));
//Create Mesh Resources
CreateVerts();
CreateTrias();
}
// Update is called once per frame
void Update()
{
}
void CreateVerts()
{
//Set verts[] size = equal to the needed number of verts (2 times the x and y of how ever many squares there will be <meshSize>)
verts = new Vector3[meshSize * 2 + meshSize * 2];
//Keep track of current vert
int curVert = 0;
//Create Verts based on the specifed meshSize
for (int x = 0; x < meshSize * 2; x++)
{
for (int z = 0; z < meshSize * 2; z++)
{
float xf = width;
float zf = height;
verts[curVert] = new Vector3(xf * x, 0, zf * z);
curVert++;
}
}
mesh.vertices = verts;
for (int v = 0; v < verts.Length; v++)
{
Debug.Log("Vert " + v + ": " + verts[v].x + ", " + verts[v].z);
}
}
void CreateTrias()
{
//Set triAs[] to the total number of triangle points needed (6 times how ever many squares there will be <meshSize>)
triAs = new int[meshSize * 6];
//Keep track of seet points
int triPoints = 0;
int triFocus = 0;
//Set every triangle point
for (int t = 0; t < triAs.Length; t++)
{
switch (triPoints)
{
case 0:
triAs[t] = triFocus + meshSize * 2;
triPoints++;
Debug.Log("case 0: " + triAs[t]);
break;
case 1:
triAs[t] = triFocus + 1;
triPoints++;
Debug.Log("case 1: " + triAs[t]);
break;
case 2:
triAs[t] = triFocus;
triPoints++;
Debug.Log("case 2: " + triAs[t]);
break;
case 3:
triAs[t] = triFocus + 1;
triPoints++;
Debug.Log("case 3: " + triAs[t]);
break;
case 4:
triAs[t] = triFocus + meshSize * 2;
triPoints++;
Debug.Log("case 4: " + triAs[t]);
break;
case 5:
triAs[t] = triFocus + meshSize * 2 + 1;
triPoints = 0;
triFocus += 2;
Debug.Log("case 5: " + triAs[t]);
break;
default:
triPoints = 0;
triFocus += 2;
break;
}
}
mesh.triangles = triAs;
}
}