diff --git a/src/scene/AABB.h b/src/scene/AABB.h
index aa7ef05..50479d7 100644
--- a/src/scene/AABB.h
+++ b/src/scene/AABB.h
@@ -46,13 +46,9 @@ struct AABB
     }
     bool intersects(Ray ray, float tmin, float tmax)
     {
-      std::cout << "Hello1" << std::endl;
         glm::vec3 invD = 1.0f / ray.direction;
-      std::cout << "Hello2: " << min.x << " " << min.y << " " << min.z << " " << max.x << " " << max.y << " " << max.z << " " << std::endl;
         glm::vec3 t0s = glm::vec3(min - ray.origin) * invD;
-      std::cout << "Hello3" << std::endl;
         glm::vec3 t1s = glm::vec3(max - ray.origin) * invD;
-      std::cout << "Hello4" << std::endl;
 
         glm::vec3 tsmaller = glm::min(t0s, t1s);
         glm::vec3 tbigger = glm::max(t0s, t1s);
diff --git a/src/scene/BVH.cpp b/src/scene/BVH.cpp
index 82e7ca3..3b054bb 100644
--- a/src/scene/BVH.cpp
+++ b/src/scene/BVH.cpp
@@ -14,14 +14,14 @@ void BVH::addModel(PModel model, glm::mat4 transform)
 
 void BVH::addModels(std::vector<PModel> _models, glm::mat4 transform)
 {
-    for (int i = 0; i < _models.size(); ++i)
+    for (auto & _model : _models)
     {
-        _models[i]->boundingBox.transform(transform);
-        for (auto& point : _models[i]->positions)
+        _model->boundingBox.transform(transform);
+        for (auto& point : _model->positions)
         {
             point = glm::vec3(transform * glm::vec4(point, 1));
         }
-        models.push_back(std::move(_models[i]));
+        models.push_back(std::move(_model));
     }
 }
 
diff --git a/src/scene/Scene.cpp b/src/scene/Scene.cpp
index a6180b5..9299677 100644
--- a/src/scene/Scene.cpp
+++ b/src/scene/Scene.cpp
@@ -46,12 +46,10 @@ void Scene::render(Camera cam, RenderParameter params)
                             {
                               Ray r = Ray{
                                 .origin = glm::vec3(0.0f),
-                                .direction = glm::vec3(0.0f, 0.0f, 1.0f)
+                                .direction = glm::normalize(glm::vec3((float)std::rand() / RAND_MAX, (float)std::rand() / RAND_MAX, (float)std::rand() / RAND_MAX))
                               };
                               bvh.traceRay(r);
 
-                              std::cout << "HELLO" << std::endl;
-
                               accumulator[w + h * params.width] +=
                                   glm::vec3(w / float(params.width * params.numSamples), h / float(params.height * params.numSamples), 0);
                             }
diff --git a/src/util/Model.cpp b/src/util/Model.cpp
index 710009f..60e9417 100644
--- a/src/util/Model.cpp
+++ b/src/util/Model.cpp
@@ -7,9 +7,9 @@ std::optional<IntersectionInfo> Model::intersect(const Ray ray)
 
   for(size_t posIndex=0, eIndex=0, normalIndex=0;  posIndex <indices.size(); posIndex+=3, eIndex+=2, normalIndex++)
   {
-    const auto p0 = positions[posIndex];
-    const auto p1 = positions[posIndex +1];
-    const auto p2 = positions[posIndex +2];
+    const auto p0 = positions[indices[posIndex]];
+    const auto p1 = positions[indices[posIndex+1]];
+    const auto p2 = positions[indices[posIndex+2]];
 
     const auto e0 = es[eIndex];
     const auto e1 = es[eIndex +1];