On the subject of realism:

what you would actually see can not be accurately captured by a camera, recreated in Poser (or anything else) or made in any other way.

So we're left with what we'd expect to see. 'Photorealism' is what we'd expect to see if a scene was captured by a camera - but what kind? Digital? Film? What sort of sensor? What sort of film?

Have you ever watched some of that colour footage of World War II, and thought it looked a bit weird? That's because you expected to see it in black and white. If you were creating a scene set in the 1960s, you'd probably light it to emulate what you'd have seen in magazines and TV shows / commercials of the time. You might well do some post-processing to emulate the shortcomings of the colour film, TV or colour printing technologies of the time, to make it seem 'genuine' (i.e. to meet the viewer's expectations).

If anyone wants to delve into this in more depth, a recommended read is Umberto Eco's Travels in Hyper-reality.

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