 | | 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 (...) (24 years ago, 7-Jun-00, to lugnet.off-topic.geek)
|
| |
| | Re: Graphics Programming on the Apple II (was: Wow! This guy is good!)
|
|
I'm not a TV engineer, but I recall the Apple ][ color distribution was made possible by a trick that used the luminance signal to gate an oscillating chroma signal. The transition from 1 to 0 (or from 0 to 1) was the key that produced a color (...) (24 years ago, 7-Jun-00, to lugnet.off-topic.geek)
|
| |
| | Re: Graphics Programming on the Apple II (was: Wow! This guy is good!)
|
|
(...) Check this out: (URL). 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 (...) (24 years ago, 7-Jun-00, to lugnet.off-topic.geek)
|
| |
| | 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 (...) (24 years ago, 7-Jun-00, to lugnet.off-topic.geek)
|
| |
| | Re: Wow! This guy is good!
|
|
(...) Ohh, lets. No drawing one-pixel wide white lines -- one lone pixel is either blue or yellow, depending if it's in an even or odd column. (This is due to the techniques Microsoft invented 20 years later for their ClearType technology...) (24 years ago, 7-Jun-00, to lugnet.general, lugnet.off-topic.geek)
|
