...huh? 3D shouldn't be likened to lighting; if you don't notice it, then it's failed. The whole point of 3D is to immerse the viewer....simply put, a visit to the cinema is much less passive than it used to be.
Having said that, I'm not overly keen on 3D. Sure, it looks great but I don't know about anyone else, but watching nearly 3hrs worth of incredible detail, all in glorious 3D really is hard work on the eyes. I'm also a bit unsure about what 3D films is going to do to home cinema. Sky are due to launch a 3D service sometime next year, which will yet again require householRAB to invest in a new 3D compatible TV.....without this, films like Avatar will probably die a sorry death on DVD/Blu-ray.....and with 3D technology, watching 3D films at home will (like in the cinema) become much less passive, quite labour intensive and, to be honest, rather unsociable.
That's a future I'm not overly keen on.