"Edouard" <pov### [at] edouardinfo> wrote in message 
news:web.4bdb84708fe449e421619a220@news.povray.org...
>
> The model - again, your brain is busy working out the complex shape, so 
> you
> don't really notice anything else as much in the scene. A viewers brain 
> only has
> finite cycles, so if you use them up they won't notice the rest of the 
> scene's
> imperfections.

Actually I'm not so sure about that. Your brain's visual systems are 
massively parallelized, but only the centre of your vision can see detail, 
so your eyes get instructed to scan all of the details your visual system 
wants more info about. Certainly your background will get less scrutiny than 
the more detailed models (to paraphrase your statement: your eyes only have 
finite time), but I was conciously aware of staring at the words and lines 
on your background because they were visually interesting. Nothing about the 
background undermined the impression that it was a photo.

Though the shape of the blur on the lines at the back did draw my attention, 
it didn't *feel* wrong but conciously I know a camera aperture should give a 
more even blur. It looks almost like motion blur from someone nudging the 
camera when the shot was taken, though presumably it's just revealing your 
sampling pattern for the focal blur. It didn't trigger my "CG" instincts, 
but it's one of the first things that drew my eye.

-- 
Tek
http://evilsuperbrain.com

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