if(Renderable *renderable = i->get_renderable())
renderable->setup_frame(renderer);
for(vector<Slot>::const_iterator i=renderables.begin(); i!=renderables.end(); ++i)
if(Renderable *renderable = i->get_renderable())
renderable->setup_frame(renderer);
for(vector<Slot>::const_iterator i=renderables.begin(); i!=renderables.end(); ++i)