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Unity Memory
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Wei Wang
July 17, 2014
Programming
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150
Unity Memory
How to optimize memory usage of Unity. Made for Unity team in Kayac.
Wei Wang
July 17, 2014
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Transcript
Unity ϝϞϦʔ࠷దԽ Ԧቨ 2014-07-17
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མͪΔ མͪΔ མͪΔ σʔλͷಡΈࠐΉ ॲཧ͍ͯ͠ͳ͍Τϥʔ ֎෦ϓϥάΠϯͷѱ͍ ϝϞϦʔΓͳ͍ ʁʁʁ େࣄͳ͜ͱ ͩΕͰ͔Δ͜ͱඞཁʂ
iPhone 4 iPhone 4s iPad mini: 512M iPhone 5Ҏ্: 1G
Androidେମ: 1Gɺ2G͋Δ ىಈ͢ΔͱɺγεςϜϝϞϦʔ͔͔Γ·͢ iOS 6 -> 70M Ϩϕϧ iOS 7 -> 200M Ϩϕϧ *iOS 7.1.2ʹվળग़དྷ·͕ͨ͠ɺ170M͙Β͍ ݁ɿϝϞϦʔҰ൪ݫ͍͠ͷ iPhone 4 ͱ iOS 7 (7.1.2Ҏ֎) ͷΈ߹ΘͤͰ͢
WHY ϝϞϦʔਃ ϝϞϦʔ͏ ऴΘͬͨ ϦϦʔε GC.Collect
Unity ϝϞϦʔཧϧʔϧ 1͔ͭ͋͠Γ·ͤΜʂ ࢀর͕͋Εɺ ϦϦʔεʢճऩʣͰ͖·ͤΜ
࠷ॳ͔ΒϝϞϦʔਖ਼͘͠༻ͷҙࣝΛ͍ͯɺ ϧʔϧΛकΕɺ࠷దԽͷ࡞ۀ͕؆୯ʹͳΒΕ·͢ʢͳ͠ʁʣ ͜ͱ͔͠Βɻɻɻ
ࢀরʁ ը૾ʢAtlasɼTextureɼSpriteͳͲʣ ԻʢSEɼBGMɼϘΠεͳͲʣ ΦϒδΣΫτʢεΫϦϓτɼModel dataʣ UnityͷΞηοτ C#
ࢀরྫ GameScene->Sprite(GameObject)-> UISprite->StartAltas(UIAtlas) ->StartAtlas(Material)->StartAtlas.png ϝϞϦʔҰ൪
NGྫ 1 ͍ͬͯͳ͍Sceneͱ͔ Destroyͯ͠ͳͯ͘ɺ SetActive false͚ͩ ͓͢͢Ίɿ͍ͬͯͳ͍ͷdestroyͯ͠ɺඞཁͳ࣌࠶Load ॏͯ͘ɺΑ͘͏ͷ͕CacheͰOK
NGྫ 2 Talk.cs private static OnComplete _onTalkComplete = null; public
static void Open(StoryData story, OnComplete onTalkComplete) { _story = story; _onTalkComplete = onTalkComplete; MakeATalk().Show(); } //Talk animation finished: public void OnTalkFinished() { if (_onTalkComplete != null) { _onTalkComplete(); } Destory(this) } Script.cs public void Go() { Talk.Open(story, ()=> { Debug.Log(“Talk finished”); }); } _onTalkComplete -> Script.cs -> Script GameObject -> ը૾ͱ͔
NGྫ 2 Talk.cs private OnComplete _onTalkComplete = null; public void
Open(StoryData story, OnComplete onTalkComplete) { _story = story; _onTalkComplete = onTalkComplete; Show(); } //Talk animation finished: public void OnTalkFinished() { if (_onTalkComplete != null) { _onTalkComplete(); } Destory(this) } Script.cs public void Go() { Talk t = new Talk(); t.Open(story, ()=> { Debug.Log(“Talk finished”); }); } ͓͢͢Ί staticඞཁͳ͍ͷɺstatic͠ͳ͍Ͱ staticɺ͘͠ singleton ཞ༻͠ͳ͍Ͱ
NGྫ 3 AssetBundle AssetBundle1 = AssetBundle.CreateFromFile("1.unity3d"); obj1.renderer.material.mainTexture = AssetBundle1.Load("wall") as
Texture; obj2.renderer.material.mainTexture = obj1.renderer.material.mainTexture; //… Destroy(obj1); Destroy(obj2); Assetͷࢀর͕ͳ͘ͳΔ͚Ͳɺ AssetBundle·ͩϦϦʔε͞Ε͍ͬͯͳ͍
NGྫ 3 AssetBundle AssetBundle1 = AssetBundle.CreateFromFile("1.unity3d"); obj1.renderer.material.mainTexture = AssetBundle1.Load("wall") as
Texture; obj2.renderer.material.mainTexture = obj1.renderer.material.mainTexture; //… Destroy(obj1); Destroy(obj2); AssetBundle1.Unload(true); //͔͔࣌ؒΓ·͢ Resources.UnloadUnusedAssets(); ը૾ϦϦʔεɺdelayͰେৎ
1 2 3 Profiler Window (Cmd+7) ։ൃͷ࣌ͪΐͬͱݟ͓ͯئ͍ https://www.youtube.com/watch?v=sBpXiJ9G3OY https://docs.unity3d.com/351/Documentation/Manual/Profiler.html
NGྫ 4 ϦʔΫͰͳ͍͚Ͳɺ GC AllocͰύʔϑΥʔϚϯεѱ͘ͳΔ public void Update() { GameController
controller = GetComponent<GameController>(); controller.Foo(); List<GameCharacter> characters = new List<GameCharacter>(); transform.parent = practiceControler.cardRoot; transform.localScale = initCardScale; transform.position = initCardPosition; }
NGྫ 4 public void Awake() { _cachedController = GetComponent<GameController>(); _characters
= new List<GameCharacter>(); _cachedTransform = transform; } public void Update() { _cachedController.Foo(); _characters.Clear(); _cachedTransform.parent = practiceControler.cardRoot; _cachedTransform.localScale = initCardScale; _cachedTransform.position = initCardPosition; } GameObject.Find ͳͲͷ୳͢method
GC Alloc ຖFrameɹϝϞϦʔਃͷྔ kbͷϨϕϧʹकΓ·͠ΐ͏ GC.Collect গͳ͘ͳΔɺύʔϑΥʔϚϯεΞοϓ
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