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What is an IndexOutOfRangeException / ArgumentOutOfRangeException and how do I fix it?（5个答案）
7天前关闭。
我试图使网格渲染在Unity 3D，但代码应该工作，这里是它说：* 索引超出范围异常：索引超出数组的边界。网格生成器.CreateShape（）（位于资产/网格生成器.cs：33）*网格生成器.Start（）（位于资产/网格生成器.cs：22）
代码如下：

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

[RequireComponent(typeof(MeshFilter))]
public class MeshGen : MonoBehaviour {

     Mesh mesh;

      Vector3[] vertices;
      int[] triangles;

      public int xSize = 20;
      public int zSize = 20;

    // Start is called before the first frame update
    void Start()
    {
        mesh = new Mesh();
        GetComponent<MeshFilter>().mesh = mesh;

        CreateShape();
        UpdateMesh();
    }
    void CreateShape()
    {
      vertices = new Vector3[(xSize * 1) * (zSize * 1)];

      int i = 0;
      for (int z = 0; z <= zSize; z++)
      {
        for (int x = 0; x <= xSize; x++)
        {
          vertices[i] = new Vector3(x, 0, z);
          i++;
        }
      }

      triangles = new int[xSize * zSize * 6];

      int vert = 0;
      int tris = 0;
      for (int x = 0; x < xSize; x++)
      {
        triangles[tris + 0] = vert + 0;
        triangles[tris + 1] = vert + xSize + 1;
        triangles[tris + 2] = vert + 1;
        triangles[tris + 3] = vert + 1;
        triangles[tris + 4] = vert + xSize + 1;
        triangles[tris + 5] = vert + xSize + 2;

        vert++;
        tris += 6;
      }
    }

  void UpdateMesh()
    {
      mesh.Clear();

      mesh.vertices = vertices;
      mesh.triangles = triangles;

      mesh.RecalculateNormals();
    }

private void OnDrawGizmos()
{
  if (vertices == null)
    {return;}

  for (int i = 0; i < vertices.Length; i++)
  {
    Gizmos.DrawSphere(vertices[i], .1f);
  }
}

}

我试着修复它，试着在谷歌上搜索，我确保它是正确的。这是我得到的唯一错误。