using?UnityEngine;
using?System.Collections;
/*
Attach?this?script?as?a?parent?to?some?game?objects.?The?script?will?then?combine?the?meshes?at?startup.
This?is?useful?as?a?performance?optimization?since?it?is?faster?to?render?one?big?mesh?than?many?small?meshes.?See?the?docs?on?graphics?performance?optimization?for?more?info.

Different?materials?will?cause?multiple?meshes?to?be?created?thus?it?is?useful?to?share?as?many?textures/material?as?you?can.
*/

[AddComponentMenu（“Mesh/Combine?Children“）]
public?class?CombineChildren?:?MonoBehaviour?{
	
	///?Usually?rendering?with?triangle?strips?is?faster.
	///?However?when?combining?objects?with?very?low?triangle?counts?it?can?be?faster?to?use?triangles.
	///?Best?is?to?try?out?which?value?is?faster?in?practice.
	public?bool?generateTriangleStrips?=?true;
	public?bool?castShadows?=?true;
	public?bool?receiveShadows?=?true;
	
	///?This?option?has?a?far?longer?preprocessing?time?at?startup?but?leads?to?better?runtime?performance.
	void?Start?（）?{
		Component[]?filters??=?GetComponentsInChildren（typeof（MeshFilter））;
		Matrix4x4?myTransform?=?transform.worldToLocalMatrix;
		Hashtable?materialToMesh=?new?Hashtable（）;
		
		for?（int?i=0;i			MeshFilter?filter?=?（MeshFilter）filters[i];
			Renderer?curRenderer??=?filters[i].renderer;
			MeshCombineUtility.MeshInstance?instance?=?new?MeshCombineUtility.MeshInstance?（）;
			instance.mesh?=?filter.sharedMesh;
			if?（curRenderer?!=?null?&&?curRenderer.enabled?&&?instance.mesh?!=?null）?{
				instance.transform?=?myTransform?*?filter.transform.localToWorldMatrix;
				
				Material[]?materials?=?curRenderer.sharedMaterials;
				for?（int?m=0;m					instance.subMeshIndex?=?System.Math.Min（m?instance.mesh.subMeshCount?-?1）;
	
					ArrayList?objects?=?（ArrayList）materialToMesh[materials[m]];
					if?（objects?!=?null）?{
						objects.Add（instance）;
					}
					else
					{
						objects?=?new?ArrayList?（）;
						objects.Add（instance）;
						materialToMesh.Add（materials[m]?objects）;
					}
				}
				
				curRenderer.enabled?=?false;
			}
		}
	
		foreach?（DictionaryEntry?de??in?materialToMesh）?{
			ArrayList?elements?=?（ArrayList）de.Value;
			MeshCombineUtility.MeshInstance[]?instances?=?（MeshCombineUtility.MeshInstance[]）elements.ToArray（typeof（MeshCombineUtility.MeshInstance））;

			//?We?have?a?maximum?of?one?material?so?just?attach?the?mesh?to?our?own?game?object
			if?（materialToMesh.Count?==?1）
			{
				//?Make?sure?we?have?a?mesh?filter?&?renderer
				if?（GetComponent（typeof（MeshFilter））?==?null）
					gameobject.AddComponent（typeof（MeshFilter））;
				if?（!GetComponent（“MeshRenderer“））
					gameobject.AddComponent（“MeshRenderer“）;
	
				MeshFilter?filter?=?（MeshFilter）GetComponent（typeof（MeshFilter））;
				filter.mesh?=?MeshCombineUtility.Combine（instances?generateTriangleStrips）;
				renderer.material?=?（Material）de.Key;
				renderer.enabled?=?true;
				renderer.castShadows?=?castShadows;
				renderer.receiveShadows?=?re

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2009-11-24?14:03??2DGameplayTutorial\
?????目錄???????????0??2009-11-24?14:02??2DGameplayTutorial\Assets\
?????文件??????235663??2009-11-24?14:02??2DGameplayTutorial\Assets\2D?Platformer.unity
?????目錄???????????0??2009-11-24?14:02??2DGameplayTutorial\Assets\Artwork\
?????文件???????68958??2009-11-24?14:02??2DGameplayTutorial\Assets\Artwork\Crate.fbx
?????文件?????1304960??2009-11-24?14:02??2DGameplayTutorial\Assets\Artwork\Lerpz.fbx
?????目錄???????????0??2009-11-24?14:02??2DGameplayTutorial\Assets\Artwork\Materials\
?????文件????????3301??2009-11-24?14:02??2DGameplayTutorial\Assets\Artwork\Materials\crate-_empty_.mat
?????文件????????3269??2009-11-24?14:02??2DGameplayTutorial\Assets\Artwork\Materials\crate-cratemat.mat
?????文件????????3643??2009-11-24?14:02??2DGameplayTutorial\Assets\Artwork\Materials\lerpzuv.mat
?????文件????????3285??2009-11-24?14:02??2DGameplayTutorial\Assets\Artwork\Materials\movingplatform-moving_platformmat.mat
?????文件????????3309??2009-11-24?14:02??2DGameplayTutorial\Assets\Artwork\Materials\platform?slope-_empty_.mat
?????文件????????3285??2009-11-24?14:02??2DGameplayTutorial\Assets\Artwork\Materials\platform?slope-angled_platformmat.mat
?????文件????????3672??2009-11-24?14:02??2DGameplayTutorial\Assets\Artwork\Materials\platform?texture.mat
?????文件????????3301??2009-11-24?14:02??2DGameplayTutorial\Assets\Artwork\Materials\platforms-_empty_.mat
?????文件????????3277??2009-11-24?14:02??2DGameplayTutorial\Assets\Artwork\Materials\platforms-angled_platformmat.mat
?????文件????????3277??2009-11-24?14:02??2DGameplayTutorial\Assets\Artwork\Materials\platforms-end_cap_003mat.mat
?????文件????????3277??2009-11-24?14:02??2DGameplayTutorial\Assets\Artwork\Materials\platforms-end_cap_rightmat.mat
?????文件????????3269??2009-11-24?14:02??2DGameplayTutorial\Assets\Artwork\Materials\platforms-end_capmat.mat
?????文件????????3277??2009-11-24?14:02??2DGameplayTutorial\Assets\Artwork\Materials\platforms-level_platformmat.mat
?????文件????????3277??2009-11-24?14:02??2DGameplayTutorial\Assets\Artwork\Materials\platforms-moving_platformmat.mat
?????文件????????3674??2009-11-24?14:02??2DGameplayTutorial\Assets\Artwork\Materials\spaceship?texture.mat
?????文件????????3309??2009-11-24?14:02??2DGameplayTutorial\Assets\Artwork\Materials\spaceship-default?mat.mat
?????文件????????3648??2009-11-24?14:02??2DGameplayTutorial\Assets\Artwork\Materials\xplosive.mat
?????文件???????27312??2009-11-24?14:02??2DGameplayTutorial\Assets\Artwork\MovingPlatform.fbx
?????文件???????71762??2009-11-24?14:02??2DGameplayTutorial\Assets\Artwork\Platform?Slope.fbx
?????文件??????122107??2009-11-24?14:02??2DGameplayTutorial\Assets\Artwork\Platforms.fbx
?????文件??????189600??2009-11-24?14:02??2DGameplayTutorial\Assets\Artwork\Spaceship.fbx
?????目錄???????????0??2009-11-24?14:02??2DGameplayTutorial\Assets\Artwork\Textures\
?????文件??????809020??2009-11-24?14:02??2DGameplayTutorial\Assets\Artwork\Textures\lerpzBump.tif
?????文件?????1079508??2009-11-24?14:02??2DGameplayTutorial\Assets\Artwork\Textures\lerpzUV.tif
............此處省略542個文件信息