Is there a "native" way to temporarily hide all scene nodes? I need to isolate a single element to render it to a texture. I thought of creating some sort of supernode which I'd hide, but have no idea how to make a child of it visible again, overriding the parent's visibility.
Can I easily add an existing object from my main scene manager to the 'helper' scene manager? Or: Do I have to expect a performance hit? (Since I only need a small set of nodes there, is there maybe some kind of optimization?)