[Coco] Documentation of "complex" artifacting (i.e. more than black/white/blue/red)?

Brian random.rodder at gmail.com
Fri May 21 18:14:22 EDT 2010


Hi John,

On my website there's a link to a Rainbow article on artifacting.

http://coco.randomrodder.com

Sent from Brian's iPhone

On May 21, 2010, at 5:05 PM, "John W. Linville"  
<linville at tuxdriver.com> wrote:

> Are there any articles in Rainbow or similar CoCo-oriented  
> publications
> that documented use of "complex" artifacting for producing additional
> colors (e.g. purple, green, etc) with a CoCo?  Can anyone refer me
> to one?
>
> There was a thread on the list back in July of 2004 that touched on  
> the
> issue, but other than some sample programs for testing there wasn't
> much discussion of the technique or how to exploit it.  It looks
> to me that unlike the "simple" artifacting (which exploits the NTSC
> color signal itself), "complex" artifacting relies on the physical
> characteristics of a CRT display and possibly on some sloppiness in
> the video hardware on the CoCo itself...?
>
> Anyway, if you have any more concrete info on this mode I'd love to
> see it.  The technique is supported in the MESS source code, but it
> is a bit indecipherable... :-(
>
> John
> -- 
> John W. Linville        Someday the world will need a hero, and you
> linville at tuxdriver.com            might be all we have.  Be ready.
>
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