[comp.sys.amiga] CEG Video Chip

gerry@dialogic.com (Gerry Lachac) (11/28/90)

Food for thought:

I've just read about an interesting video chip called CEG in PC Week
(I know bad for my health :-).  However, this chip was very
interesting, as it does anti-aliasing on the fly and costs about $20
in quantity.  Reportedly the anti-aliasing techniques will give video
output on VGA cards "...photographic quality, exceeding the resolution
and clarity of a standard NTSC TV picture."

Would a video card for the Amiga designed with this chip provide a
similar increase in video quality?

mark@calvin..westford.ccur.com (Mark Thompson) (12/01/90)

In article <1990Nov28.154730.226@dialogic.com> gerry@dialogic.com (Gerry Lachac) writes:
>I've just read about an interesting video chip called CEG in PC Week.
>It does anti-aliasing on the fly and costs about $20
>in quantity.  Reportedly the anti-aliasing techniques will give video
>output on VGA cards "...photographic quality, exceeding the resolution
>and clarity of a standard NTSC TV picture."
>
>Would a video card for the Amiga designed with this chip provide a
>similar increase in video quality?

What this chip does is basically what the Amiga custom chip set has
done from the start: allow dynamic reloading of the color lookup table
as you display your image. Also, it has some builtin ALU's to do a
linear blend of the pixel color with the existing pixel color under
software direction. So whatcha got is a dynamic pallete like the Amiga
except the PC pallete is 256 out of 16M as apposed to 32 out of 4096.
A card could be built for the Amiga to utilize this chip but considering
it is a non-standard display format, it is an image hack (like SHAM and
dynamic Hi-Res), and the recent proliferation of frame buffer boards
with zillions of colors; I see little reason to do it.
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|  Mark Thompson                                                           |
|  mark@westford.ccur.com                                                  |
|  ...!{decvax,uunet}!masscomp!mark   Designing high performance graphics  |
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