Re: Why not perfect alignment?

In article <>,
Ben C <> wrote:

> On 2009-10-25, dorayme <> wrote:
> > Can't think of any good reason for the text not to be as crisp for both
> > *visible* paragraphs at:
> >
> ><http://dorayme.netweaver.com.au/alt/indexAlignment.html>
> >
> > Here is an even purer case:
> >
> ><http://dorayme.netweaver.com.au/alt/indexAlignment2.html>
> >
> > Notice that the background is not set (the phenomena is dependent on the
> > transparency of the backgrounds to the elements).
> >
> > It is mildly surprising that blurring occurs, that there is not perfect
> > registration.
> >
> > The only theory that comes to my mind does not *quite* satisfy me:
> > elements are on layers in a fluid which has a refractive index different
> > to a vacuum.
>
> It's because the glyphs are antialiased.

Yes, clearly centrally to do with it as I gathered from the various
things we have been yacking about through the thread.

I just downloaded Opera 10 at last and I notice it does the same thing
as Opera 9 in this regard, it does *not* do the transparancy dance
around real HTML letters. There were references about this in the
thread, (that Opera does not engage with the OSs facilities in this
regard. No jaggedy jag).

Anyway, since you revive the matter, let me make a quick experiment with
an anti-aliased png that is made to be transparent:

<http://dorayme.netweaver.com.au/alt/indexAlignment_antiAlias.html>

cf.

<http://dorayme.netweaver.com.au/alt/indexAlignment_no-antiAlias.html>

You might notice that in this case, Opera 10, while not doing the
overlaying jaggedy jag with HTML text, *does* do it with the first of
the last pair of URLs where just pics are involved.

--
dorayme

dorayme

In article <>,
Ben C <> wrote:

> I get the same thing in Opera 9.50 on GNU/Linux as in other browsers,
> with your original text example

You mean the latest URL with the pngs?

There was some evidence that the text jaggedy look was related to the
font-smoothing facilities in Windows. On my Mac there seems no way to
turn what is called "font-smoothing" quite off. You can alter the nature
or degree of it. I experimented on this subtler basis but saw no useful
changes.

In Opera on the Mac, text looks its normal smooth extremely pleasing
self in all situations. So something is supplying font-smoothing.
Without it, text looks qhastly on screen. But there is no piling up of
semi-transparent bits to give the effect being discussed. And nor does
this happen with the pngs I made, the url to which you snipped and I
have momentarily lost.

--
dorayme

dorayme