| combine | 要合并的网格的描述。 |
| mergeSubMeshes | Defines whether Meshes should be combined into a single sub-Mesh. |
| useMatrices | 定义是应使用还是忽略在 CombineInstance 数组中提供的变换。 |
将多个网格合并到此网格中。
合并网格对性能优化很有用。
If mergeSubMeshes is true, all the Meshes are combined to a single sub-Mesh. Otherwise, each Mesh
goes into a different sub-Mesh. If all Meshes share the same Material, set this to true.
如果 useMatrices 为 true，则使用 CombineInstance 结构中的变换矩阵。否则，忽略它们。
将 hasLightmapData 设置为 true 可按 CombineInstance 结构中的光照贴图缩放偏移数据变换输入网格光照贴图 UV 数据。网格必须共享相同的光照贴图纹理。
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;
}
}