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Unity面试题教案资?- 百度文库

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Unity

һʲôЭͬ

߳еͬʱһ߼ЭǰִУЭ̺̣߳DzǶ̣߳UnityЭʵÿ֮֡ȥyieldǷ㡣 Unity3dеײʹ

ײǴ壬ֻײϵһԡIs Trigger=falseʱײײײЧԵOnCollisionEnter/Stay/ExitIs Trigger=trueʱײԣûײЧԵOnTriggerEnter/Stay/ExitҪ⵽ĽӴֲײӰƶҪһǷ񾭹ռеijʱͿõ

巢ײıҪ

嶼ײColliderһ廹Rigidbody壬ұ˶Rigidbodyűܼ⵽ײ ģArrayListListҪ

####ArrayListڲȫͣArrayListвеݶObject?װIJʱ?ListǽӿڣArrayListһʵ˸ýӿڵ࣬Աʵ 壺ΰȫڲ̼ͬ䰲ȫǨassetݣַ 1.AssetsĿ¼LibraryĿ¼һǨ 2.export Package

3.unityԴassets Server

OnEnableAwakeStartʱķ˳Щͬһзķ Awake C>OnEnable->StartOnEnableͬһпԷط ߣMeshRendermaterialsharedmaterial

޸sharedMaterialıʹʵۣҲı䴢ڹIJáƼ޸sharedMaterialصIJʡ޸ȾIJʣʹmaterial ˣUnityṩ˼ֹԴֱʲô ֡

ƽй⣺Directional Light ԴPoint Light ۹ƣSpot Light ԴArea Light

ţһ¶أFPSЩʺʹö

ؾʹҪԴһռ䣬һشɵʱÿζٴܷʱ䣬ͨذʱõĶŵһУҲһϣ´Ҫʱ

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ȥвһǷпõĶеĻֱóʹãҪٴûпõĶ󣬲Ҫ´ÿռ任ʱﵽϷĸЧFPSϷҪƵĶӵˣӵ

ʮCharacterControllerRigidbody

RigidbodyȫʵԣUnityϵͳһ˳õԣCharacterController˵޵ĵRigidbodyһЧȫʵģUnityΪʹܷĿһ˳ӽǵϷװһ ʮһprefabô

Ϸʱʵprefab൱һģ壬ѾеزġűһĬϵãԱԺ޸ģͬʱprefabݼ˵IJŶӵĽ ʮsealedؼʱ뺯ʱ

sealedεΪܷ࣬ʱɷֹ̳д࣬ڷɷֹд˷ ʮprivatepublicprotectedinternal publicκͳԱƷ privateԸ๫

protectedԸ๫

internalֻڰijзʸ ʮģʹUnity3dʵ2dϷмַʽ 1. ʹñGUIUnity4.6ԺֵUGUI

2.Projection(ͶӰ)ֵΪOrthographic(ͶӰ)z᣻ 3.ʹ2d磺2DToolKitNGUI

ʮ壺巢ײУм׶ΣֱгӦĺ ׶Σ1.OnCollisionEnter 2.OnCollisionStay 3.OnCollisionExit ʮUnity3dУмʩķʽֱ

rigidbody.AddForce/AddForceAtPositionrigidbodyϵкСҿԼȥ鿴һrigidbodyAPI

ʮߣʲôؽڣ

Hinge Jointģһһܱһ̶ڲ໥ƶǴﵽ̶ͻ ʮˣתʹõĺ

Transform.Rotate() Χijתʹõĺ

Transform.RotateAround()

ʮţUnity3dṩһڱͶȡݵ(PlayerPrefs)гͶȡݵĺ

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PlayerPrefs.SetInt() PlayerPrefs.GetInt()

ʮUnity3dűӻѵһױȽڣгϵͳԴļҪķ Awake>OnEnableC>Start>Update>FixedUpdate>LateUpdate>OnGUI>OnDisable>OnDestroy

ʮһһĸϵͳ

FixedUpdateÿ̶֡ʱִһΣUpdateͬFixedUpdateȾִ֡УȾЧʵµʱFixedUpdateôͻ½FixedUpdateȽļ㣬ΪǸÿ֡ȾйءUpdateͱȽʺơ

ʮڳзöCameraͬʱڻ״̬ᷢʲô ϷԿܶĻϡ

ʮһUnityEngine.Objectࣿ ʹDestroy();

ʮģΪʲôUnity3dлᷢϳݶʧ һϰ󶨵ɾ ʮ壺LODʲôȱʲô

LOD(Level of detail)ϸڣõϷŻģ͵λúҪ̶ȾȾԴ䣬ͷҪϸڶȣӶøЧʵȾ㡣ȱڴ档 ʮMipMapʲôã

MipMappingάͼεͼȾгõļΪӿȾȺͼͼݣͼһϵбԤȼŻͼƬɵļͼΪMipMap ʮߣInterface֮IJͬ

ʾпѾһЩľ嶨壬ӿھǹֻܶĽ ܾʵִڳԱС̳еģѾʵʹܵķʱ÷пԲʵֱ֣øķҲдøķʵֽӿڵʱҪʵֽӿеķ©κһ ʮˣ.NetMonoĹϵ

mono.netһԴƽ̨ߣjavajavaǿƽ̨ԣϾܹʵ˿ƽ̨.netֻwindowsУmonoʵֿƽ̨ܣlinuxUnixMac OSȡ

ʮţUnity3Dֵ֧ΪűԵ

UnityĽűԻMono.Netƽ̨Уʹ.NET⣬ҲΪXMLݿ⡢ʽṩ˺ܺõĽUnityĽűᾭ룬ǵٶҲܿ졣ʵϵĹܺٶһģҪϡJavaScript C#Boo ʮU3Dڼ¼ڵռ伸Ϣƣ丸

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Transform Component

ʮһĵˡԼһ壿

1.Ƴ̶ȣԽԽƣɱʾͶӰ 2.˵õֱԭ

3.׼ֻϵ򣬲ĴСʱ

ʮΪδҶƶ豸ѰU3DԭGUI ۣOnGUIܺķʱ䣬Чʲߣʹò ʮڲֱͬ±UIһ

NGUIܺõĽһ㣬ĻֱʵӦԣԭǼĻĿ߱ȸԭԤĻֱһԱֵȻ޸sizeUGUIͨêĵͷֱҲ ʮģʲôLightMap

LightMap:ָάʵִù⣬ȻȾѳĹͼϣͨϣʹ˹յĸо ʮ壺Unitycocos2d

1. Unity3D֧C#javascriptȣcocos2d-x ֧c++Html5Luaȡ 2. cocos2d Դ

3. Unity3D֧iOSAndroidFlashWindowsMacWiiƽ̨Ϸcocos2d-x֧iOSAndroidWPȡ

ʮC#C++

򵥵˵C# C++ ȽϵĻҪԾC# һȫԣC++ ǣC# ǻIL мԺ.NET Framework CLR ģڿֲԣάԺǿ׳ԶC++ кܴĸĽC# ĿȶչӦó򣬵ȻҲͨInterop Pinvoke һЩײϸҿԲο ʮߣṹк

ṹһֵֵͣ͡͡Ǹݴ洢ĽǶֵģֵڴ洢ݵֵڴ洢ʵݵáôṹǵֵʹõģͨʵݲ

ʮˣrefoutʲôʲô

refoutЧһͨؼҵıڴַͨڵ﷨ıĴСͬԲгʼrefʼout ں︳ֵrefãoutΪ ʮţC#ίʲôкô

ίһְȫָãʹʱǵһ൱ڶһ鷽бáôʹίʹԱԽ÷װίжڡȻԽίж󴫵ݸɵ

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ѧϰ Unity һʲôЭͬ ߳еͬʱһ߼ЭǰִУЭ̺̣߳DzǶ̣߳UnityЭʵÿ֮֡ȥyieldǷ㡣 Unity3dеײʹ ײǴ壬ֻײϵһԡIs Trigger=falseʱײײײЧԵOnCollisionEnter/Stay/ExitIs Trigger=trueʱײԣûײЧԵOnTriggerEnter/Stay/ExitҪ⵽ĽӴֲײӰƶҪһǷ񾭹ռеijʱͿõ 巢ײ

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