Mesh.CombineMeshes

Parameters

Description

Combines several meshes into this mesh.

Combining meshes is useful for performance optimization. If mergeSubMeshes is true, all the meshes will be combined to a single submesh. Otherwise each mesh will go into a different submesh. If all meshes share the same material, set this to true. If useMatrices is false, the transform matrices in CombineInstance structs will be ignored.

	@script RequireComponent(MeshFilter)
	@script RequireComponent(MeshRenderer)
	function Start () {
		var meshFilters: MeshFilter[] = GetComponentsInChildren(MeshFilter);
		var combine : CombineInstance[] = new CombineInstance[meshFilters.Length];
		for (var i = 0; i < meshFilters.Length; i++){
			combine[i].mesh = meshFilters[i].sharedMesh;
			combine[i].transform = meshFilters[i].transform.localToWorldMatrix;
			meshFilters[i].gameObject.active = false;
		}
		transform.GetComponent.<MeshFilter>().mesh = new Mesh();
		transform.GetComponent.<MeshFilter>().mesh.CombineMeshes(combine);
		transform.gameObject.active = true;
	}

using UnityEngine;
using System.Collections;

[RequireComponent(typeof(MeshFilter))]
[RequireComponent(typeof(MeshRenderer))]
public class ExampleClass : MonoBehaviour {
    void Start() {
        MeshFilter[] meshFilters = GetComponentsInChildren<MeshFilter>();
        CombineInstance[] combine = new CombineInstance[meshFilters.Length];
        int i = 0;
        while (i < meshFilters.Length) {
            combine[i].mesh = meshFilters[i].sharedMesh;
            combine[i].transform = meshFilters[i].transform.localToWorldMatrix;
            meshFilters[i].gameObject.active = false;
            i++;
        }
        transform.GetComponent<MeshFilter>().mesh = new Mesh();
        transform.GetComponent<MeshFilter>().mesh.CombineMeshes(combine);
        transform.gameObject.active = true;
    }
}