[Coco] CoCoFEST! 2009 256-color slideshow (now dithered!)

[Joel Ewy]

Gene Heskett wrote:
> On Sunday 10 January 2010, Joel Ewy wrote:
>   
>> John W. Linville wrote:
>>     
>>> So I learned how to dither images.  Now my 256-color slideshow looks
>>> a lot better...
>>>
>>> 	http://www.youtube.com/watch?v=Tm9yB3xVfbs
>>>
>>> Enjoy!
>>>
>>> John
>>>       
>> That looks really good, John.  The dithering really does help.
>>
>> JCE
>>
>>     
>
> Is the flickering border part of this 256 color mode, or do I have a viewer 
> problem?
>
>   
The flickering border is not intrinsic to the 256 color mode.  John must 
have put that in there for fun, or to demonstrate that the CoCo can do 
other things while displaying pictures in this mode, because it is a 
single, ordinary 640x200 screen, with no palette switching or anything 
else.  All the colors are artifact colors in the manner of the old PMODE 
4.  FWIW, my slideshow doesn't do anything with the borders, and 'view' 
just makes them black.

JCE