To LUGNET HomepageTo LUGNET News HomepageTo LUGNET Guide Homepage
 Help on Searching
 
Post new message to lugnet.off-topic.geekOpen lugnet.off-topic.geek in your NNTP NewsreaderTo LUGNET News Traffic PageSign In (Members)
 Off-Topic / Geek / 1738
1737  |  1739
Subject: 
Re: Graphics Programming on the Apple II (was: Wow! This guy is good!)
Newsgroups: 
lugnet.off-topic.geek
Date: 
Wed, 7 Jun 2000 04:20:10 GMT
Reply-To: 
mattdm@mattdmSPAMLESS.org
Viewed: 
2386 times
  
John J. Ladasky Jr. <ladasky@my-deja.com> wrote:
> A pixel was defined in a rather slippery fashion in Apple II
> "high-resolution" graphics.  A pixel was either one bit or two, depending
> on the values of adjacent bits.  The four basic colors were blue, violet,
> green, and orange (no yellow!).  You could only get white by having two
> adjacent bits turned on.  Two adjacent bits turned off = black.

Check this out: <http://grc.com/ctwho.htm>. The "pixels" as you describe
above aren't really whole pixels at all; rather they are subpixels, much
like the red, green, and blue subpixels on a LCD display. This is exactly
the concept Microsoft's Cleartype takes advantage of.



--
Matthew Miller                      --->                  mattdm@mattdm.org
Quotes 'R' Us                     --->               http://quotes-r-us.org/
Boston University Linux             --->                http://linux.bu.edu/



Message has 1 Reply:
  Re: Graphics Programming on the Apple II (was: Wow! This guy is good!)
 
(...) MS's Cleartype and the way Woz did Apple ]['s hires graphics mode are a world apart, actually. And the Apple ]['s 1/2-pixel horizontal shifting was the same on color monitors as green/black monitors -- that is, from the same video signal if (...) (26 years ago, 7-Jun-00, to lugnet.off-topic.geek)

Message is in Reply To:
  Graphics Programming on the Apple II (was: Wow! This guy is good!)
 
(...) Mein Gott! Someone who actually remembers graphics programming on the Apple II! But I remember things a little differently. A pixel was defined in a rather slippery fashion in Apple II "high-resolution" graphics. A pixel was either one bit or (...) (26 years ago, 7-Jun-00, to lugnet.off-topic.geek)

34 Messages in This Thread:











Entire Thread on One Page:
Nested:  All | Brief | Compact | Dots
Linear:  All | Brief | Compact

This Message and its Replies on One Page:
Nested:  All | Brief | Compact | Dots
Linear:  All | Brief | Compact
    

©2005 LUGNET. All rights reserved. - hosted by steinbruch.info GbR