2026-07-10 비동기 씬전환

Assets/02_Scripts/Managers/LocalManager.cs

@@ -0,0 +1,11 @@
+using UnityEngine;
+
+public class LocalManager : MonoBehaviour
+{
+    [SerializeField] private string _nextSceneName;
+
+    public void NextScene(int delay)
+    {
+        _ = Util.RunDelayed((float)delay,()=>SceneLoadManager.Instance.RequestSceneChange(_nextSceneName));
+    }
+}

Assets/02_Scripts/Managers/LocalManager.cs.meta

@@ -0,0 +1,2 @@
+fileFormatVersion: 2
+guid: c144420b84bc04040b4361d1fc601961

Assets/02_Scripts/Managers/SceneLoadManager.cs

@@ -1,6 +1,7 @@
 using System;
 using UnityEngine;
 using UnityEngine.SceneManagement;
+using UnityEngine.XR.Interaction.Toolkit.Locomotion;
 
 public class SceneLoadManager : MonoBehaviour
 {
@@ -9,10 +10,20 @@ public class SceneLoadManager : MonoBehaviour
     [SerializeField] private GameObject _loadingRoot;
     [SerializeField] private Camera _loadingCam;
     [SerializeField] private Transform _loadingCamTargetTransform;
+    [SerializeField] private LoadingScreen _loadingScreen;
 
-    private bool _isChangingScene = false;
+    [SerializeField] private Material _sceneSkybox;
+    [SerializeField] private Material _loadingSkybox;
 
-    public bool IsChangingScene => _isChangingScene;
+    [SerializeField, Min(0f)] private float _skyboxFadeTime = 1f;
+    // 정상(밝음) 상태에서의 스카이박스 _Exposure 값. 페이드 인의 도착 지점.
+    [SerializeField, Min(0f)] private float _skyboxNormalExposure = 1f;
+
+    // 씬 전환(로딩) 동안 플레이어를 치워둘 허공 좌표 — 기존 씬 오브젝트가 시야에 안 들어오게
+    [SerializeField] private Vector3 _loadingPlayerPosition = new Vector3(10000f, 0f, 0f);
+
+    private Material _runtimeSceneSkybox;
+    private Material _runtimeLoadingSkybox;
 
     private void Awake()
     {
@@ -24,6 +35,17 @@ private void Awake()
         {
             Destroy(gameObject); // 이미 인스턴스가 있으면 자신을 파괴
         }
+
+        if (_sceneSkybox != null)
+            _runtimeSceneSkybox = new Material(_sceneSkybox);
+        if (_loadingSkybox != null)
+            _runtimeLoadingSkybox = new Material(_loadingSkybox);
+
+        if (_runtimeSceneSkybox != null)
+        {
+            RenderSettings.skybox = _runtimeSceneSkybox;
+            DynamicGI.UpdateEnvironment();
+        }
     }
 
     private void Start()
@@ -37,6 +59,8 @@ private void OnDestroy()
         if (Instance == this)
         {
             SceneManager.sceneLoaded -= OnSceneLoaded;
+            if (_runtimeSceneSkybox != null) Destroy(_runtimeSceneSkybox);
+            if (_runtimeLoadingSkybox != null) Destroy(_runtimeLoadingSkybox);
         }
     }
 
@@ -63,25 +87,102 @@ private void OnSceneLoaded(Scene scene, LoadSceneMode mode)
         }
     }
 
+    public async Awaitable FadeLoadingCanvas(bool isOut,float fadeTime)
+    {
+        float startAlpha = isOut ? 1f : 0f;
+        float endAlpha = isOut ? 0f : 1f;
+
+        float timer = 0;
+        _loadingScreen.LoadingScreenCanvasGroup.alpha = startAlpha;
+
+        while(timer < fadeTime)
+        {
+            timer += Time.deltaTime;
+            _loadingScreen.LoadingScreenCanvasGroup.alpha = Mathf.Lerp(startAlpha, endAlpha, timer / fadeTime);
+            await Awaitable.NextFrameAsync(this.destroyCancellationToken); 
+        }
+
+        _loadingScreen.LoadingScreenCanvasGroup.alpha = endAlpha;
+    }
+
+    // 현재 RenderSettings.skybox의 _Exposure를 from→to로 보간
+    private async Awaitable FadeSkybox(float from, float to, float duration)
+    {
+        var sky = RenderSettings.skybox;
+        if (sky == null || !sky.HasFloat("_Exposure")) return;
+
+        float timer = 0f;
+        while (timer < duration)
+        {
+            timer += Time.deltaTime;
+            float k = Mathf.Clamp01(timer / duration);
+            sky.SetFloat("_Exposure", Mathf.Lerp(from, to, k));
+            DynamicGI.UpdateEnvironment();
+            await Awaitable.NextFrameAsync(this.destroyCancellationToken);
+        }
+        sky.SetFloat("_Exposure", to);
+        DynamicGI.UpdateEnvironment();
+    }
+
+    public async Awaitable SetSceneLoadingActive(bool isActive,float alphaTime)
+    {
+        if (isActive)
+        {
+            _loadingRoot.SetActive(true);
+        }
+            
+
+        if (alphaTime > 0f)
+        {
+            await FadeLoadingCanvas(!isActive,alphaTime);
+        }
+
+        if (!isActive)
+            _loadingRoot.SetActive(false);
+    }
+
+    public void SetSceneLoadingActive(bool isActive)
+    {
+        _ = SetSceneLoadingActive(isActive, 0f);
+    }
+
     public void SetSceneLoadingProgressValue(float value)
     {
-        // 여기에 로딩바 UI 연결 예정
+        _loadingScreen.LoadingImage.fillAmount = value;
+        _loadingScreen.LoadingTextMeshProUGUI.text = $"{(value * 100):F0}%";
+    }
+    public void SetSceneLoadingProgressValue(float value,string loadingText)
+    {
+        _loadingScreen.LoadingImage.fillAmount = value;
+        _loadingScreen.LoadingTextMeshProUGUI.text = loadingText;
+    }
+
+    // 플레이어(XR Origin 루트, Player 태그)를 로딩용 허공 좌표로 옮긴다.
+    // 새 씬이 로드되면 새 씬의 플레이어 스폰 위치가 적용되므로 되돌릴 필요는 없다.
+    private void MovePlayerToLoadingArea()
+    {
+        var player = GameObject.FindWithTag("Player");
+        if (player == null)
+        {
+            Debug.LogWarning("[SceneLoadManager] Player 태그 오브젝트를 찾지 못해 이동 생략");
+            return;
+        }
+
+        // 로딩 동안 이동/회전/중력을 전부 정지 — 허공에서 낙하하지 않게.
+        // (XRI에서 중력도 LocomotionProvider다) 씬이 로드되면 리그가 새 씬 것으로
+        // 교체되므로 다시 켤 필요 없다. HMD 트래킹은 영향받지 않는다.
+        foreach (var provider in player.GetComponentsInChildren<LocomotionProvider>())
+            provider.enabled = false;
+
+        // CharacterController는 켜진 채로 위치를 바꾸면 이동이 씹힐 수 있어 잠깐 끄고 옮긴다
+        var cc = player.GetComponent<CharacterController>();
+        if (cc != null) cc.enabled = false;
+        player.transform.position = _loadingPlayerPosition;
+        if (cc != null) cc.enabled = true;
     }
 
     public void RequestSceneChange(string sceneName)
     {
-        if (_isChangingScene)
-        {
-            Debug.Log("이미 씬 전환 중입니다.");
-            return;
-        }
-
-        if (string.IsNullOrEmpty(sceneName))
-        {
-            Debug.LogWarning("이동할 씬 이름이 비어있습니다.");
-            return;
-        }
-
         _ = SceneChange(sceneName);
     }
 
@@ -89,80 +190,82 @@ private async Awaitable SceneChange(string sceneName)
     {
         try
         {
-            _isChangingScene = true;
+            //로딩바 수치 0으로 설정
-
-            // 로딩바 수치 0으로 설정
             SetSceneLoadingProgressValue(0f);
 
-            if (_loadingRoot != null)
+            //스카이 박스 페이드 아웃
-            {
+            await FadeSkybox(_skyboxNormalExposure, 0f, _skyboxFadeTime);
-                _loadingRoot.SetActive(true);
+
-            }
+            // 검게 된 상태에서 머티리얼 교체 (교체 순간이 가려져 깜빡임 없음)
+            RenderSettings.skybox = _runtimeLoadingSkybox;
+
+            // 어두운 동안 플레이어를 허공으로 이동 — 로딩 중 기존 씬 오브젝트가 보이지 않게
+            // (로딩 룸은 카메라를 따라다니므로 함께 이동한다)
+            MovePlayerToLoadingArea();
+
+            //스카이 박스 페이드 인
+            await FadeSkybox(0f, _skyboxNormalExposure, _skyboxFadeTime);
+
+            //로딩창을 1초에 걸쳐 나타나게함
+            await SetSceneLoadingActive(true,1f);
 
             AsyncOperation op = SceneManager.LoadSceneAsync(sceneName);
 
-            if (op == null)
+            //자동 전환을 하고 싶지 않을 경우 해당값을 false로 두었다가 true로 바꾸면 그 때 전환됨
-            {
-                Debug.LogError($"씬 로드 실패: {sceneName}");
-                _isChangingScene = false;
-                return;
-            }
-
-            // 자동 전환을 하고 싶지 않을 경우 false로 두었다가 true로 바꾸면 그 때 전환됨
             op.allowSceneActivation = false;
 
-            // 화면에 보여줄 로딩 수치
+            //화면에 보여줄 로딩 수치
             float displayProgress = 0f;
 
-            // op.progress 0.9가 데이터 로딩이 끝난 기준
+            //op.progress 0.9가 데이터 로딩이 끝난 기준 allowSceneActivation이 트루면 다음으로 넘어가면서 op.isDone이 true가 된다.
-            while (op.progress < 0.9f)
+            while (op.progress < 0.9f) 
             {
-                // 실제 로딩 수치
+                //실제 로딩 수치
                 float realProgress = Mathf.Clamp01(op.progress / 0.9f);
 
-                // 보여줄 값을 실제값을 향해 부드럽게 이동
+                //보여줄 값을 실제값을 향해 부드럽게 이동
                 displayProgress = Mathf.MoveTowards(displayProgress, realProgress, Time.deltaTime * 0.5f);
 
                 // 로딩바 UI에 값 적용
                 SetSceneLoadingProgressValue(displayProgress);
 
-                // 자기자신이 파괴될때 토큰에 취소요청을 보냄
+                //자기자신이 파괴될때 토큰에 취소요청을 보냄
                 await Awaitable.NextFrameAsync(this.destroyCancellationToken);
             }
 
-            // 로딩바 수치 1(100%)로 설정
+            //로딩바 수치 1(100%)로 설정 (데이터 로딩은 이미 끝이기 때문에)
-            SetSceneLoadingProgressValue(1f);
+            SetSceneLoadingProgressValue(1);
 
             // 잠시 대기했다가 전환
             await Awaitable.WaitForSecondsAsync(1.0f, this.destroyCancellationToken);
 
+            // 로딩바가 1초에 걸쳐 사라짐
+            await SetSceneLoadingActive(false,1f);
+            
+            await FadeSkybox(_skyboxNormalExposure, 0f, _skyboxFadeTime);
+
+            // 검게 된 상태에서 정상 스카이박스로 교체
+            RenderSettings.skybox = _runtimeSceneSkybox;
+
             // 다음씬으로 넘어가도 됨을 알림
             op.allowSceneActivation = true;
 
             // 씬 활성화가 완전히 끝날 때까지 대기
-            while (!op.isDone)
+            // allowSceneActivation가 true가 되고 완전히 전환되기까지는 몇프레임 걸림. op.isDone 은 이 과정이 끝난 뒤에 true가 됨.
+            while(!op.isDone)
             {
                 await Awaitable.NextFrameAsync(this.destroyCancellationToken);
             }
 
-            // VR용 로직
+            //VR용 로직
-            // 트래킹이 중단되면 안되기 때문에 카메라를 유지해야 한다
+            //트래킹이 중단되면 안되기 때문에 카메라를 유지해야 한다
-            if (Camera.main != null)
+            _loadingCamTargetTransform = Camera.main.transform; // 새로운 씬의 메인카메라를 따라가게끔 설정
-            {
-                _loadingCamTargetTransform = Camera.main.transform;
-            }
 
-            if (_loadingRoot != null)
+            await FadeSkybox(0f, _skyboxNormalExposure, _skyboxFadeTime);
-            {
-                _loadingRoot.SetActive(false);
-            }
-
-            _isChangingScene = false;
         }
         catch (OperationCanceledException)
         {
             Debug.Log("씬 전환 작업이 취소됨");
-            _isChangingScene = false;
         }
     }
 }

Assets/02_Scripts/UI/View/LoadingScreen.cs

@@ -0,0 +1,15 @@
+using TMPro;
+using UnityEngine;
+using UnityEngine.UI;
+
+public class LoadingScreen : MonoBehaviour
+{
+    public Image LoadingImage;
+    public TextMeshProUGUI LoadingTextMeshProUGUI;
+    public CanvasGroup LoadingScreenCanvasGroup;
+
+    private void Awake()
+    {
+        LoadingScreenCanvasGroup = GetComponent<CanvasGroup>();
+    }
+}

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