holy shit is this slow

src/main.cpp

@@ -9,8 +9,9 @@ int main()
   Renderer scene;
   Window window(1920, 1080);
   Camera camera = Camera{
-      .position = glm::vec3(20, 5, 5),
+      .position = glm::vec3(-30, 5, 5),
       .target = glm::vec3(0, 0, 0),
+      .S_O = 40,
   };
   RenderParameter render = RenderParameter{
       .width = 1920,

src/scene/Renderer.cpp

@@ -10,7 +10,7 @@ Renderer::Renderer()
       .direction = glm::normalize(glm::vec3(-0.4f, -0.3f, -0.2f)),
       .color = glm::vec3(1, 1, 1),
   });
-  bvh.addModels(ModelLoader::loadModel("../res/models/cube.fbx"),
+  bvh.addModels(ModelLoader::loadModel("../res/models/stanford-bunny.obj"),
                 glm::mat4(glm::vec4(1.0f, 0.0f, 0.0f, 0.0f), glm::vec4(0.0f, 1.0f, 0.0f, 0.0f), glm::vec4(0.0f, 0.0f, 1.0f, 0.0f),
                           glm::vec4(0.0f, 0.0f, 0.0f, 1.0f)));
   bvh.generate();

src/scene/Renderer.h

@@ -20,7 +20,7 @@ public:
   void startRender(Camera cam, RenderParameter params);
   constexpr const std::vector<glm::vec3>& getImage() const { return image; }
   constexpr const std::vector<float>& getSampleTimes() const { return sampleTimes; }
-  constexpr const float getLastSampleTime() const { return sampleTimes.back(); }
+  constexpr const float getLastSampleTime() const { return sampleTimes.empty() ? 0 : sampleTimes.back(); }
   constexpr const float getAverageSampleTime() const
   {
     return std::accumulate(sampleTimes.begin(), sampleTimes.end(), 0.0f) / sampleTimes.size();

src/scene/Scene.cpp

@@ -159,7 +159,7 @@ IntersectionInfo Scene::generateIntersections(const PNode& currentNode, const Ra
 {
   if (!currentNode->aabb.intersects(ray, tmin, tmax))
   {
-    return {};
+  //  return {};
   }
   if (currentNode->model.numIndices > 0)
   {

src/util/ModelLoader.cpp

@@ -20,7 +20,14 @@ std::vector<PModel> ModelLoader::loadModel(std::string_view filename)
     {
       auto aiVert = mesh->mVertices[v];
       model->positions.push_back(glm::vec3(aiVert.x, aiVert.y, aiVert.z));
-      model->texCoords.push_back(glm::vec2(mesh->mTextureCoords[0][v].x, mesh->mTextureCoords[0][v].y));
+      if (mesh->HasTextureCoords(0))
+      {
+        model->texCoords.push_back(glm::vec2(mesh->mTextureCoords[0][v].x, mesh->mTextureCoords[0][v].y));
+      }
+      else
+      {
+        model->texCoords.push_back(glm::vec2(0, 0));
+      }
       aabb.adjust(model->positions.back());
     }
     for (int i = 0; i < mesh->mNumFaces; ++i)