Re: Color fringe hires behavior

[Andy McFadden <fadden@fadden.com>]

BLuRry <brendan.robert@gmail.com> wrote:
> I've been trying to figure out a way to render hires to a double-hires
> bitmap, but also taking into account the odd combinations of color
> frindges.  See the following example paraphrased from Sather's book
> below:

I took four different approaches in CiderPress.  One uses a
register-shifting scheme like the //e technote describes, one uses a dumb
"it's 140 pixels across" approach, and one does some odd things to make
it look as close to the IIgs RGB output as I could get it.  The fourth
one, which is the only one that looks exactly like the RGB output, is
560-pixel black & white.

I spent an hour with Dazzle Draw and a magnifing glass in front of my
Magnavox monitor, toggling between RGB and composite video.  The artifacts
on RGB don't seem to have any rhyme or reason to them -- it sorta looks
like there's a filter layer that cleans up certain transitions.

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