原理：修改Mesh顶点及三角索引
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获取模型的mesh网格，非蒙皮模型通过获取MeshFilter组件得到Mesh，带有蒙皮的模型通过Skinned Mesh Renderer组件获取Mesh。 - MeshFilter meshFilter = GetComponent();
- Mesh mesh = meshFilter.mesh;
**代码
修改模型mesh顶点以及三角索引： - Vector3[] oldVerts = mesh.vertices;//保存当前Mesh顶点
- int[] triangles = mesh.triangles;//三角索引数组
- Vector3[] verts = new Vector3[triangles.Length];//用于保存新的顶点信息
- for (int i = 0; i < triangles.Length; i++)
- {
- verts = oldVerts[triangles];
- triangles = i;
- }
- mesh.vertices = verts;//更新Mesh顶点
- mesh.triangles = triangles;//更新索引
- mesh.RecalculateBounds();//重新计算边界
- mesh.RecalculateNormals();//重新计算法线
**代码
将脚本赋予模型，运行即可得到low poly效果。为了避免每次执行进行顶点的计算以及修改，可以加上下面代码将修改后的Mesh保存成文件： - string fileName = "Assets/FileName.asset";//要保存成的文件路径及文件名 文件格式为.asset
- AssetDatabase.CreateAsset(meshFilter.sharedMesh, fileName);//创建文件
- AssetDatabase.SaveAssets();//保存数据
**代码
运行程序后会在Assets下生成Mes**件，将此文件拖到该模型Mesh Filter组件下的Mesh，此时生成low poly的脚本组件已经无用了，记得移除
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完整代码： - using UnityEngine;
- using System.Collections;
- using UnityEditor;
- public class FlatShading : MonoBehaviour
- {
- private Mesh mesh;
- void Start()
- {
- var meshFilter = GetComponent();
- mesh = meshFilter.mesh;
- Vector3[] oldVerts = mesh.vertices;
- int[] triangles = mesh.triangles;
- Vector3[] verts = new Vector3[triangles.Length];
- for (int i = 0; i < triangles.Length; i++)
- {
- verts = oldVerts[triangles];
- triangles = i;
- }
- mesh.vertices = verts;
- mesh.triangles = triangles;
- mesh.RecalculateBounds();
- mesh.RecalculateNormals();
- //save file
- string fileName = "Assets/" + System.DateTime.Now.Year.ToString()+ System.DateTime.Now.Month.ToString()+ System.DateTime.Now.Day.ToString()+ System.DateTime.Now.Hour.ToString()+ System.DateTime.Now.Minute.ToString()+ System.DateTime.Now.Second.ToString() + ".asset";
- AssetDatabase.CreateAsset(meshFilter.sharedMesh, fileName);
- AssetDatabase.SaveAssets();
- }
- }
**代码
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