[Coco] Artifacting on LCD?

[Mike Pepe]

It's pretty simple to do. You just scan the program and figure out where
it sets the VDG mode and change it from RG6 to CG6, insert some code
somewhere to set the palette registers to the proper values, and bingo-
artifact colors.

Well, sort of. It still doesn't look as good this way because the
composite video smearing smoothes out the edges. This method makes
things kind of jaggy.

I did this to Ms. Maze and a couple of other games at one time.

> -----Original Message-----
> From: coco-bounces at maltedmedia.com [mailto:coco-
> bounces at maltedmedia.com] On Behalf Of Christian Lesage
> Sent: Thursday, April 09, 2009 4:06 PM
> To: CoCoList for Color Computer Enthusiasts
> Subject: Re: [Coco] Artifacting on LCD?
> 
> Allen Huffman wrote:
> > On Apr 9, 2009, at 4:47 PM, Nick Marentes wrote:
> >> If you are using a CoCo3, why would you use anything but the RGB
> >> outputs?
> >
> > So I could play the thousands of CoCo 1/2 games in color instead of
> as
> > black and white striped checkerboards.
> 
> I seem to remember there was a way to patch most games to make them
run
> in 128x192, 4 colours instead of 256x192, 2 colours. The CoCo 3
palette
> was then manipulated to make those 4 colours black, white, red and
> blue,
> in order to mimic the artifacted mode, or, as I did because I could
> only
> afford a monochrome monitor, 4 levels of gray. Does anyone remember
how
> it was done? I still only use a monochrome monitor!
> 
> Christian
> 
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