If it’s used as a game ui, games typically render everything at 60fps - so the energy cost from ui layer would be neglible. Afaik nobody is forcing to rerender

If it’s used as a game ui, games typically render everything at 60fps - so the energy cost from ui layer would be neglible. Afaik nobody is forcing to rerender the ui layer if nothing changes, though. Just render it to a texture and compose … no need to put everything to the same render target?