diff --git a/Frostbite2D/src/frostbite2D/core/application.cpp b/Frostbite2D/src/frostbite2D/core/application.cpp
index c2080f5..0a8c9df 100644
--- a/Frostbite2D/src/frostbite2D/core/application.cpp
+++ b/Frostbite2D/src/frostbite2D/core/application.cpp
@@ -250,28 +250,6 @@ void Application::render() {
     }
   }
 
-  // 简单的测试代码 - 绘制彩色方块
-  if (renderer_) {
-    static float angle = 0.0f;
-    angle += 0.02f;
-
-    renderer_->beginFrame();
-
-    // 绘制橙色方块
-    renderer_->drawQuad(Vec2(0, 0), Size(200, 150), 1.0f, 0.5f, 0.2f);
-
-    // 绘制蓝色移动方块
-    float x = 1920.0 / 2 + cosf(angle) * 100.0f;
-    float y = 1080.0 / 2 + sinf(angle) * 100.0f;
-    renderer_->drawQuad(Vec2(x, y), Size(100, 100), 0.3f, 0.5f, 1.0f);
-
-    renderer_->drawQuad(Vec2(1920 - 100, 1080 - 150), Size(100, 150), 1.0f,
-                        0.5f, 0.2f);
-
-    renderer_->endFrame();
-    renderer_->flush();
-  }
-
   if (window_) {
     window_->swap();
   }
diff --git a/Frostbite2D/src/main.cpp b/Frostbite2D/src/main.cpp
index 92c54cb..78f8dc5 100644
--- a/Frostbite2D/src/main.cpp
+++ b/Frostbite2D/src/main.cpp
@@ -2,7 +2,6 @@
 #include <SDL2/SDL.h>
 #include <frostbite2D/core/application.h>
 #include <frostbite2D/core/window.h>
-#include <frostbite2D/graphics/camera.h>
 #include <frostbite2D/graphics/renderer.h>
 #include <frostbite2D/graphics/texture.h>
 #include <frostbite2D/utils/asset.h>
@@ -14,48 +13,25 @@ int main(int argc, char **argv) {
   AppConfig config = AppConfig::createDefault();
   config.appName = "Frostbite2D Test App";
   config.appVersion = "1.0.0";
-  config.windowConfig.width = 1920;
-  config.windowConfig.height = 1080;
+  config.windowConfig.width = 800;
+  config.windowConfig.height = 600;
   config.windowConfig.title = "Frostbite2D - Renderer Test";
 
-  Application &app = Application::get();
+  Application& app = Application::get();
 
   if (!app.init(config)) {
     SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Failed to initialize application!");
     return -1;
   }
 
-  auto &renderer = Renderer::get();
-  renderer.setClearColor(0.1f, 0.1f, 0.15f);
+  auto& renderer = Renderer::get();
+  renderer.setClearColor(0.2f, 0.3f, 1.0f);
+  renderer.setViewport(0, 0, 800, 600);
 
-  // 获取屏幕实际大小
-  auto *window = app.getWindow();
-  int screenWidth = window ? window->width() : config.windowConfig.width;
-  int screenHeight = window ? window->height() : config.windowConfig.height;
-
-  // 设置 Renderer 的视口到屏幕大小
-  renderer.setViewport(0, 0, screenWidth, screenHeight);
-
-  // 相机使用游戏逻辑分辨率 (1280x720)
-  static Camera camera;
-  camera.setViewport(config.windowConfig.width, config.windowConfig.height);
-  renderer.setCamera(&camera);
-
-  auto &asset = Asset::get();
-#ifdef __SWITCH__
-  asset.setWorkingDirectory("/switch/testgame");
-#else
-  asset.setWorkingDirectory(".");
-#endif
-
-  // 初始化着色器管理器
-  auto &shaderManager = renderer.getShaderManager();
-  shaderManager.init("shaders");
+  auto& asset = Asset::get();
+  asset.setWorkingDirectory("assets");
 
   SDL_Log("Application initialized successfully");
-  SDL_Log("Screen size: %dx%d", screenWidth, screenHeight);
-  SDL_Log("Render size: %dx%d", config.windowConfig.width,
-          config.windowConfig.height);
   SDL_Log("Starting main loop...");
 
   app.run();