models_by_type_[type].push_back(model);
}
-void EngineImpl::add_model(resource::Model::Type type, std::unique_ptr<resource::Model> model, bool is_default)
+void EngineImpl::add_model(resource::Model::Type type, std::shared_ptr<resource::Model> model, bool is_default)
{
add_model_ptask(type, model.get(), is_default);
models_.push_back(std::move(model));