void Renderer::cleanScene() {
std::cout << "cleaning scene." << std::endl;
Scene scene = config.GetScene();
scene.DeleteLight("dummy");
scene.DeleteObject("subject");
for(std::vector<std::string>::const_iterator it = env_objects.begin(); it != env_objects.end(); it++){
scene.DeleteObject(*it);
}
env_objects.clear();
for(std::vector<std::string>::const_iterator it = env_lights.begin(); it != env_lights.end(); it++){
scene.DeleteLight(*it);
}
env_lights.clear();
scene.RemoveUnusedMeshes();
}
