Unity Mesh合并办法 – 实现换装 优化效率 模型合并

using UnityEngine;
using System.Collections;
using System.Collections.Generic;
 
public class CombineMeshes : MonoBehaviour
{
 
    void Start()
    {
        //获取MeshRender;
        MeshRenderer[] meshRenders = GetComponentsInChildren<MeshRenderer>();
 
        //材质;
        Material[] mats = new Material[meshRenders.Length];
        for (int i = 0; i < meshRenders.Length; i++)
        {
            mats[i] = meshRenders[i].sharedMaterial;
        }
 
        //合并Mesh;
        MeshFilter[] meshFilters = GetComponentsInChildren<MeshFilter>();
 
        CombineInstance[] combine = new CombineInstance[meshFilters.Length];
 
        for (int i = 0; i < meshFilters.Length; i++)
        {
            combine[i].mesh = meshFilters[i].sharedMesh;
            combine[i].transform = meshFilters[i].transform.localToWorldMatrix;
            meshFilters[i].gameObject.SetActive(false);
        }
 
        MeshRenderer mr = gameObject.AddComponent<MeshRenderer>();
        MeshFilter mf = gameObject.AddComponent<MeshFilter>();
        mf.mesh = new Mesh();
        mf.mesh.CombineMeshes(combine, false);
        gameObject.SetActive(true);
        mr.sharedMaterials = mats;
    }
 
}

如标题所诉。mesh 分离。可以实现一个 人物 用很多不同形状的武器或者装备什么的。同时 分离可以优化效率。

那这里就有一个 mesh如何合并的问题。unity提供了 mesh合并的接口。

简单示例代码如下：

using UnityEngine; using System.Collections; using System.Collections.Generic; public class CombineMeshes : MonoBehaviour { void Start() { //获取MeshRender; MeshRenderer[] meshRenders = GetComponentsInChildren<MeshRenderer>(); //材质; Material[] mats = new Material[meshRenders.Length]; for (int i = 0; i < meshRenders.Length; i++) { mats[i] = meshRenders[i].sharedMaterial; } //合并Mesh; MeshFilter[] meshFilters = GetComponentsInChildren<MeshFilter>(); CombineInstance[] combine = new CombineInstance[meshFilters.Length]; for (int i = 0; i < meshFilters.Length; i++) { combine[i].mesh = meshFilters[i].sharedMesh; combine[i].transform = meshFilters[i].transform.localToWorldMatrix; meshFilters[i].gameObject.SetActive(false); } MeshRenderer mr = gameObject.AddComponent<MeshRenderer>(); MeshFilter mf = gameObject.AddComponent<MeshFilter>(); mf.mesh = new Mesh(); mf.mesh.CombineMeshes(combine, false); gameObject.SetActive(true); mr.sharedMaterials = mats; } }

 

创建了一个矩形 和一个 圆形。放在一个空物体下。将上面脚本绑定在空物体上。执行

效果如下：

将mesh合并成了一个。并赋值了材质。

 

 

转载自：小宝个人笔记 » Unity Mesh合并办法 – 实现换装 优化效率 模型合并