将游戏层和UI层分开渲染 并提高了缩放质量

source/EngineCore/Game.cpp

@@ -26,6 +26,10 @@ void Game::Init(std::function<void()> CallBack)
     SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 2);
     SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1); // 双缓冲
 
+    // 启用多重采样（关键步骤）
+    SDL_GL_SetAttribute(SDL_GL_MULTISAMPLEBUFFERS, 1); // 启用多重采样缓冲
+    SDL_GL_SetAttribute(SDL_GL_MULTISAMPLESAMPLES, 8); // 4x 采样（可改为 8 等）
+
     if (SDL_Init(SDL_INIT_EVERYTHING) < 0)
     {
         SDL_LogError(SDL_LOG_CATEGORY_ERROR, "SDL could not initialize! Error: %s\n", SDL_GetError());
@@ -39,6 +43,7 @@ void Game::Init(std::function<void()> CallBack)
     }
     // 关闭原生鼠标
     SDL_ShowCursor(0);
+
     // 打开所有检测到的控制器
     int numControllers = SDL_NumJoysticks();
     for (int i = 0; i < numControllers; i++)
@@ -112,6 +117,7 @@ void Game::Run()
         // 延迟后，重新计算从帧开始到现在的总时间（包含可能的延迟误差）
         Uint64 actualFrameTime = SDL_GetTicks64() - frameStart;
         m_deltaTime = actualFrameTime / 1000.0f; // 用实际总时间更新deltaTime
+        m_frameTime_ms = actualFrameTime;
     }
 }
 
@@ -160,9 +166,6 @@ void Game::Update(float deltaTime)
 
 void Game::Render()
 {
-    // 绘制调用次数清0
-    m_RenderCount = 0;
-
     // 调用预渲染
     if (m_scene != nullptr)
         m_scene->PreRender();
@@ -172,9 +175,15 @@ void Game::Render()
     // 清空渲染器后渲染
     m_renderer->ClearScreen();
     if (m_scene != nullptr)
+    {
+        m_renderer->SetOrthoMatrixType(0);
         m_scene->Render();
+    }
     if (m_uiScene != nullptr)
+    {
+        m_renderer->SetOrthoMatrixType(1);
         m_uiScene->Render();
+    }
     m_renderer->SwapBuffer();
 }
 

source/EngineCore/Game.h

@@ -56,12 +56,7 @@ public:
     // 设定UI层场景对象
     void ChangeUIScene(RefPtr<Scene> scene);
 
-    RenderManager* GetRenderer();
+    RenderManager *GetRenderer();
-
-    // 每秒帧率
-    u32 m_fps;
-    // 每帧绘制调用次数
-    u32 m_RenderCount = 0;
 
 private:
     // 构造函数和析构函数设为私有，防止外部创建和销毁
@@ -73,7 +68,7 @@ private:
     // 窗口
     SDL_Window *m_window;
     // 渲染器
-    RenderManager* m_renderer;
+    RenderManager *m_renderer;
 
     // 游戏层场景
     RefPtr<Scene> m_scene;
@@ -82,22 +77,27 @@ private:
 
     // 帧数
 #ifdef __SWITCH__
-    float m_Settingfps = 60.0;
+    float m_Settingfps = 5000.0;
 #else
-    float m_Settingfps = 144.0;
+    float m_Settingfps = 5000.0;
 #endif
     // 单帧时间
     float m_frameTime = 0.f;
-    // 每秒内的帧数计数器
-    u32 m_frameCounter;
-    // 上一次输出帧率的时间
-    u32 m_lastFpsPrintTime;
-
     // 帧间隔
     float m_deltaTime = 0.f;
+    // 每秒内的帧数计数器
+    u32 m_frameCounter;
+    u32 m_lastFpsPrintTime;
 
 public:
     // 屏幕宽高
     int Screen_W = 1280;
     int Screen_H = 720;
+
+    // 每秒帧率
+    u32 m_fps;
+    // 单帧时间
+    u32 m_frameTime_ms;
+    // 节点个数
+    u32 m_nodeCount = 0;
 };

source/EngineFrame/Render/RenderManager.cpp

@@ -26,8 +26,11 @@ RenderManager::RenderManager(SDL_Window *window)
     // 设置窗口尺寸
     _windowWidth = width;
     _windowHeight = height;
-    // 设置正交投影矩阵
+
-    _orthoMatrix = glm::ortho(0.0f, (float)width, (float)height, 0.0f, -1.0f, 1.0f);
+    // 游戏的初始正交投影矩阵
+    _GameOrthoMatrix = glm::ortho(0.0f, (float)width / 1.2f, (float)height / 1.2f, 0.0f, -1.0f, 1.0f);
+    // UI的初始正交投影矩阵
+    _UIOrthoMatrix = glm::ortho(0.0f, (float)width, (float)height, 0.0f, -1.0f, 1.0f);
 
     // 设置清屏颜色
     glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
@@ -217,7 +220,7 @@ void RenderManager::Init2DTextureProgram()
 
         // 设置着色器 uniforms
         glUniformMatrix4fv(_currentRenderParams.UnimLocs[0], 1, GL_FALSE, glm::value_ptr(model));
-        glUniformMatrix4fv(_currentRenderParams.UnimLocs[1], 1, GL_FALSE, glm::value_ptr(_orthoMatrix));
+        glUniformMatrix4fv(_currentRenderParams.UnimLocs[1], 1, GL_FALSE, glm::value_ptr(_OrthoMatrix));
 
         // 绑定纹理并设置采样器
         glActiveTexture(GL_TEXTURE0);
@@ -297,6 +300,7 @@ void RenderManager::SetCurrentBufferObject(std::string name)
 void RenderManager::ClearScreen()
 {
     glClear(GL_COLOR_BUFFER_BIT);
+    _frameRenderCount = 0;
 }
 
 void RenderManager::SwapBuffer()
@@ -317,12 +321,21 @@ void RenderManager::CloseClipRect()
 
 void RenderManager::DrawTexture(RefPtr<Texture> textureObj, const SDL_Rect *srcrect, const SDL_FRect *dstrect, const double angle, const SDL_FPoint *center, const SDL_RendererFlip flip, void *userdata)
 {
+    _frameRenderCount++;
     if (_currentRenderParams.DrawFunc != nullptr)
         _currentRenderParams.DrawFunc(textureObj, srcrect, dstrect, angle, center, flip, userdata);
     else
         SDL_LogError(SDL_LOG_CATEGORY_ERROR, "找不到渲染逻辑函数\n");
 }
 
+void RenderManager::SetOrthoMatrixType(int type)
+{
+    if (type == 0)
+        _OrthoMatrix = _GameOrthoMatrix;
+    else
+        _OrthoMatrix = _UIOrthoMatrix;
+}
+
 GLuint RenderManager::CompileShader(GLenum type, std::string Path)
 {
     std::ifstream Source("shader/" + Path);

source/EngineFrame/Render/RenderManager.h

@@ -31,8 +31,12 @@ private:
     // 窗口尺寸
     int _windowWidth;
     int _windowHeight;
-    // 正交投影矩阵
+    // 游戏正交投影矩阵
-    glm::mat4 _orthoMatrix;
+    glm::mat4 _GameOrthoMatrix;
+    // UI的正交投影矩阵
+    glm::mat4 _UIOrthoMatrix;
+    // 渲染的正交投影矩阵
+    glm::mat4 _OrthoMatrix;
 
     // 渲染器上下文
     SDL_GLContext _ctx;
@@ -46,6 +50,9 @@ private:
     // 当前使用渲染参数
     GL_RenderParams _currentRenderParams;
 
+public:
+    // 单帧渲染调用次数
+    int _frameRenderCount = 0;
 public:
     RenderManager(SDL_Window *window);
     ~RenderManager();
@@ -69,6 +76,9 @@ public:
     void CloseClipRect();
     // 绘制纹理
     void DrawTexture(RefPtr<Texture> texture, const SDL_Rect *srcrect, const SDL_FRect *dstrect, const double angle, const SDL_FPoint *center, const SDL_RendererFlip flip, void *userdata = nullptr);
+    // 设置正交投影矩阵类型
+    void SetOrthoMatrixType(int type);
+
 
 private:
     // 编译着色器

source/EngineFrame/Render/Texture.cpp

@@ -35,9 +35,9 @@ bool Texture::Init(std::string PngPath)
     glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
     glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
     // 缩小过滤：使用最近邻采样
-    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
     // 放大过滤：使用最近邻采样
-    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
 
     // 处理像素对齐（确保SDL的像素行对齐与OpenGL兼容）
     glPixelStorei(GL_UNPACK_ALIGNMENT, 1);