因爲要在Unity3d中檢驗在《3D遊戲編程大師技巧》中學習到的東西,寫了一個查看簡單mesh的頂點順序的小工具。
效果如下(當前也可以將uv座標等其他信息加入到顯示中):
工具創建步驟:
- 創建一個腳本,讀取mesh中的頂點列表
using UnityEngine;
using System.Collections.Generic;
namespace YanCheZuo
{
[RequireComponent(typeof(MeshFilter))]
public class TestMeshViewer : MonoBehaviour
{
private MeshFilter _meshFilter;
private Mesh _mesh;
public List<Vector3> verticesList = new List<Vector3>();
public List<Vector2> uvList = new List<Vector2>();
public List<int> triList = new List<int>();
private void Start()
{
_meshFilter = this.GetComponent<MeshFilter>();
_mesh = _meshFilter.mesh;
ReadMeshInfo();
}
private void ReadMeshInfo()
{
for (int i = 0, imax = _mesh.vertexCount; i < imax; ++i)
{
verticesList.Add(_mesh.vertices[i]);
uvList.Add(_mesh.uv[i]);
}
for (int i = 0, imax = _mesh.triangles.Length; i < imax; ++i)
{
triList.Add(_mesh.triangles[i]);
}
}
}
}
- 創建編輯器腳本,在Scene中繪製頂點順序
using UnityEditor;
using UnityEngine;
using System.Collections.Generic;
using System.Text;
namespace YanCheZuo
{
[CustomEditor(typeof(TestMeshViewer))]
public class MeshViewerEditor : Editor
{
private void OnSceneGUI()
{
GUIStyle style = new GUIStyle();
style.normal.textColor = Color.red;
TestMeshViewer viewer = target as TestMeshViewer;
Dictionary<Vector3, StringBuilder> posList=new Dictionary<Vector3, StringBuilder>();
for (int i = 0, imax = viewer.verticesList.Count; i < imax; ++i)
{
Vector3 vPos = viewer.transform.TransformPoint(viewer.verticesList[i]);
StringBuilder sb;
if (posList.TryGetValue(vPos, out sb))
{
sb.AppendLine("index:" + i);
}
else
{
sb = new StringBuilder();
sb.AppendLine("index" + i);
posList.Add(vPos, sb);
}
Handles.Label(vPos, sb.ToString(),style);
}
}
}
}
- 使用方法:
把TestMeshViewer掛到有MeshFilter組件的GameObject上。