Models/Collideables/etc. won't need a AABB component anymore, if it has a Model component. In addition, they should take rotation into account, i.e it doesn't have to be axis-aligned.

src/Engine/Collision/FillOctreeSystem.cpp

@@ -7,12 +7,6 @@ void FillOctreeSystem::Update(double dt)
 
 void FillOctreeSystem::UpdateComponent(EntityWrapper& entity, ComponentWrapper& component, double dt)
 {
-    if (!entity.HasComponent("AABB")) {
-        //Derive AABB from model.
-        if (!Collision::AttachAABBComponentFromModel(entity)) {
-            return;
-        }
-    }
     boost::optional<EntityAABB> absoluteAABB = Collision::EntityAbsoluteAABB(entity);
     if (absoluteAABB) {
         m_Octree->AddDynamicObject(*absoluteAABB);